Upwork home
Sign up
Secondary

Hire the best Web Application Security professionals

Check out Web Application Security professionals with the skills you need for your next job.
Hire freelancers
Clients rate Web Application Security professionals
Rating is 4.8 out of 5.
4.8/5
based on 594 client reviews
  2. Development & IT Talent
  3. Information Security Analysts
  4. (Current) Web Application Security Freelancers
  • $110 hourly

    • 5.0/5
    • (16 jobs)
    Having spent around 7 years working in the IT industry I am a skilled security analyst capable of assessing even the most complex of web applications, networks and mobile applications. I've done penetration tests for multiple fortune 500 companies and during my time working at NorthState Technology Solutions' security consulting branch. I spent 2 years on Nike's internal penetration testing team and ended up becoming the lead of the Red Team and Purple Team program that was in-development. Lastly I built my own companies The Pentesters and ATL Tech Labs so I have a unique perspective that gives me insights as to what a business owner's objectives are as well as what the security analyst's objectives are and how to make those align. I am an OSCE (Offensive Security Certified Expert), OSCP (Offensive Security Certified Professional), eMAPT (eLearnSecurity Mobile Application Penetration Tester) and OSWP (Offensive Security Wireless Professional) so you know before you even see my work that I am qualified and able to simulate an attacker using the most up-to-date and bleeding edge tactics/techniques. During my free time I present to the Kennesaw State University Information Security Club, I work on bug bounty programs, capture-the-flag hacking competitions and personal security research projects. All in all I believe that my education, my experience and dedication to the field make me a prime candidate for all security analysis work.
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Reverse Engineering
    Network Monitoring
    Web Proxy
    Web App Penetration Testing
    WordPress
    Malware
    Ethical Hacking
    Network Penetration Testing
    Computer Network
    Encryption
    Penetration Testing
    Kali Linux
    Vulnerability Assessment
  • $60 hourly

    • 5.0/5
    • (14 jobs)
    Extensive success in providing clients with various IT and cybersecurity solutions. I have wide experience in handling individual clients as well as larger companies/organizations to help them build a customized and secure environment for all their digital assets. How I can help you: -Perform penetration testing against web & mobile applications, internal & external networks, and cloud systems (Azure, GCP, AWS) -Perform smart contracts auditing -Consult on any IT solutions, primarily focusing on open-source tools which can benefit by cutting down cost -Create a monitoring setup for all your digital/IT assets exposed to the Internet -Create security policies -Create custom tools in Python -Provide and implement security best practices -Consult on Governance, Risk, and Compliance (GRC) -Provide one-on-one cybersecurity training -Perform red team activities against an organization -Incident response -Digital forensic analysis All the services I provide will come with a complete report and a slide deck, which I will present to the stakeholders and provide them with an in-depth analysis. Furthermore, I am an eager and quick learner, performing research after hours to provide my clients with the best possible solution to their IT problems.
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Blockchain Security
    API Testing
    Cyber Threat Intelligence
    Cybersecurity Monitoring
    Malware
    Risk Analysis
    Virus Removal
    Data Analytics
    Smart Contract
    Malware Removal
    Security Testing
    Vulnerability Assessment
    Application Security
    Cybersecurity Management
    Penetration Testing
    Digital Forensics
  • $75 hourly

    • 5.0/5
    • (210 jobs)
    ✅ Top Rated Expert ✅ 3000+ Hours ✅ Professional Penetration Tester Security researcher acknowledged by U.S Department of Defense (among other notable companies like AT&T, Semrush, Smule etc) for disclosing a number of vulnerabilities on DoDs systems via Hackerone bug bounty platform. For deliverables, professional reports are created,that will outline every vulnerability found, proofs-of-concept, and solutions on how to fix the discovered vulnerabilities. Each report not only meets but exceeds requirements for compliance auditors. Core competency is performing black and gray box testing on live web applications/networks or lab environments. Familiar with all common attack vectors and mitigation techniques, as well as finding unknown to public exploits known as 0days in web applications. Even though most of the work is confidential sample vulnerability report can be provided. Service Description 1)Web Application Penetration Testing based on OWASP TOP 10 2)Network Penetration Testing 3)Security Hardening Pentesting tools: BurpSuite Professional, OpenVAS, Nmap, Metasploit, Mimikatz, Impacket python framework
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    JavaScript
    Reverse Engineering
    Black Box Testing
    Security Testing
    Ethical Hacking
    Network Penetration Testing
    Network Security
    Malware
    Vulnerability Assessment
    Web App Penetration Testing
    Internet Security
    Penetration Testing
  • $25 hourly

    • 5.0/5
    • (389 jobs)
    Certifications that I hold: CEH ( Certified Ethical Hacker) 740 MCSA ( Installation, Storage and Compute with Windows Server 2016) To whom it may concern, In the last years I did more than 400 Penetration Tests and Security Assessments. Most of them on Web and Mobile ( Android and iOS ) applications with Finance Background implemented with various technologies and frameworks, server security testing and hardening. Sample reports can be provided who is interested. ___________________________________________________________ Professional Load and Stress Testing if you are interested for your application ___________________________________________________________ Migration of infrastructure among cloud solutions ( AWS , Azure , Office 365, Google cloud). Many of you struggle to shift your infrastructure from On-premise to Azure , AWS ( amazon) or vice versa , I can do it in a short time frame with zero downtime if there is a possibility. And offer you support as long as you and your team are self reliable on new infrastructure. Regarding Windows Server Services ,I am focused on Microsoft enterprise-driven solutions: Windows Server( Active directory,IIS ,DNS, DHCP ,WDS , Hyper-V, Backup, Exchange, RPD farming) Expert troubleshoot Server Hardening and securing Windows and Linux servers. Monitoring software setup ( PRTG Paesler ,Nagious , Zabbix) Keen on Deadlines, fair on doing business together always ready to negotiate price
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Security Engineering
    Internet Security
    NIST SP 800-53
    Windows Server
    OWASP
    Ethical Hacking
    Manual Testing
    Security Infrastructure
    Network Security
    Penetration Testing
    Application Security
    Kali Linux
    Vulnerability Assessment
    Security Assessment & Testing
  • $30 hourly

    • 5.0/5
    • (110 jobs)
    Looking for a penetration test? We'll give you access to our next-generation penetration testing solution. By combining the power of manual and automated penetration tests, we deliver the real-time insights companies need to remediate risk quickly. Through our Pentest as a Service (PTaaS) platform our clients receive comprehensive assessments. Our methodology follows the National Institute of Standards and Technology Special Publication (NIST SP​ 800-115), along with the latest techniques, tactics and tools used by hackers to compromise systems and applications. Providing real-time findings and unlimited retests to ensure gaps are closed is our key differentiator. Please check my Upwork work history and client feedbacks. I look forward to hearing from you!
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Network Security
    Information Security Audit
    Security Testing
    OWASP
    Information Security
    Website Security
    Vulnerability Assessment
    Penetration Testing
    Certified Information Systems Security Professional
  • $50 hourly

    • 5.0/5
    • (37 jobs)
    I'm a cyber security consultant that is conducting and leading security audits, penetration testing engagements, and red team engagements to a variety of companies, ranging from enterprise-level companies to small start-ups. Daily activities include, but are not limited to: penetration testing, red teaming, briefing, debriefing, other meetings. Previously I did infrastructure management at an enterprise-level company where I was administrating three (3) active directory forests and did host-based incident response. Certificates owned: [+] CCNA Routing and Switching 1 [+] Cisco Cyber Operations Introduction [+] Cisco Cyber Operations Essentials [+] Junior Penetration Tester (eJPT) from eLearnSecurity [+] Certified Professional Penetration Tester (eCPPT) from eLearnSecurity [+] Network Security Expert 1 (NSE 1) from Fortinet [+] Network Security Expert 2 (NSE 2) from Fortinet [+] Certified Network Security Professional (CNSS) from ICSI [+] Network Defense Professional (eNDP/PND) from eLearnSecurity [+] Introduction to Forensics from SecurityBlueTeam [+] Introduction to Threat Hunting from SecurityBlueTeam [+] Certified Red Team Professional [+] Certified Red Team Expert [+] Virtual Hacking Labs [+] Virtual Hacking Labs Advanced+ [+] Web Application Penetration Tester from eLearnSecurity [+] Red Team Operations - Windows Privilege Escalation from Sektor7 [+] Certified Enterprise Security Specialist (PACES) - Pentester Academy [+] Red Team Specialist - CyberWarfare [+] Certified Penetration Tester Extreme - eLearnSecurity [+] Certified Red Team Operator - Zero Point Security [+] Offensive Security Experienced Pentester (OSEP) - Offensive Security Volunteer at Hackout(a project/platform having a collaboration with CERT-RO) where I responsibly disclose vulnerabilities. Former contributor member/content creator at Try Hack Me.
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Ethical Hacking
    Linux
    Information Security Audit
    OWASP
    Security Testing
    Information Security Consultation
    Security Assessment & Testing
    Network Security
    Application Security
    Network Penetration Testing
    Web App Penetration Testing
    Information Security
    Penetration Testing
    Vulnerability Assessment
  • $50 hourly

    • 4.6/5
    • (66 jobs)
    Hi there 👋 I am Bryan, a no-code enthusiast with a knack for using no-code platforms to create incredible products, with experience ranging to 5+ years now. One of my go-to tools is Bubble.io, which I use to turn my design ideas into fully functional software that people love to use. My Notable Creations Molecule.to - Raised $20.5m in funding: Revolutionizing the way visionary patients, researchers, entrepreneurs and funders connect and collaborate to unlock the full potential of science Revivo - Raised $635k in funding: Breathing new life into the quality spare parts and accessories industry. 6DGRS - Raised $50k in funding: Empowering friends and family to connect you with singles in a private and secure way. Omnify.market: Universal creative resources made by designers, for designers. Plantnextdoor.com: Bringing green thumbs together, one garden at a time. Closerlink.io: Bridging gaps between closers and online businesses. I've also worked with Pathfix, Xano,Zapier and Parabola to create all kinds of cool software projects. So, if you're looking to create something awesome and need a friendly, experienced partner to work with, please don't hesitate to reach out. I'd love to chat with you about how we can bring your software ideas to life!
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    iOS Development
    Android
    Progressive Web App
    Database Architecture
    User Interface Design
    No-Code Development
    User Experience Design
    Web Application
    Bubble.io
    App Development
    Figma
    Web Development
    Responsive Design
    Prototyping
  • $70 hourly

    • 4.8/5
    • (116 jobs)
    "Excellent ethical hacker. Very prompt, knowledgeable, and comprehensive" "Working with Konstantin was a good experience. Well rounded security experience helped us with number of different issues." My business motto is "Nil Satis Nisi Optimum" ("Nothing but the best is good enough") - because I know you feel the same about your business! CompTIA Security+ and Pentest+ seasoned certified security expert. My main specialization is information security system design, audit, vulnerability assessment and solutions implementation. I have experience with cloud (AWS, GCP) and on-prem infrastructure security, Linux and Windows OS, Active directory infrastructure and many different tools and software for specific security needs. In my job, I follow the best practice, local laws and international standards such as ISO 27000 and NIST 800 families.
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Malware
    Network Penetration Testing
    Security Analysis
    Security Infrastructure
    Information Security Audit
    Internet Security
    Financial Audit
    System Hardening
    Compliance
    IT Compliance Audit
    Security Engineering
    Security Policies & Procedures Documentation
    Application Security
    Information Security
    Network Security
    Firewall
  • $30 hourly

    • 5.0/5
    • (24 jobs)
    CyberSecurity Analyst, Penetration Tester, and Information security researcher, I conduct penetration tests and vulnerability assessment tasks in web applications, API, Mobile applications and infrastructures. My area of expertise is mostly web applications and API security. I like to find the most severe bugs and focus on critical and high-impact vulnerabilities. I can also provide guidelines for secure coding and/or vulnerability patching.
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Security Assessment & Testing
    Security Testing
    Security Engineering
    Information Security
    Application Security
    System Security
    Database Security
    Website Security
    Network Security
    Penetration Testing
  • $90 hourly

    • 5.0/5
    • (16 jobs)
    R&D services in the following areas: C++ development and C development Qt development Kernel and Device Driver Development for Windows, Linux and macOS Low-level Software Development for Windows, Linux and macOS Cybersecurity expertise Reverse Engineering Penetration Testing Security testing Automation testing Vulnerability Assessment Blockchain Networking tools (e.g. Firewall, Monitoring, Encryption etc) OpenVPN / VPN development Native Android and native iOS development We have a certified (ISQTB QA) and an experienced team of QA experts according to the specialty of our company - kernel-level drivers, mobile development, web development areas, virtualization, blockchain. Our experts are familiar with Hyper-V/SCVMM, ESXi/VMWareWorkstation/vCenter, KVM, Qemu, MS SQL, Firebird, PostgreSQL, React, AWS, Node.js, Python, JavaScript, TypeScript, C#, Web API (MS ASP.Net), MVC, WCF, perform testing and writing of Unit tests using programming languages. The key areas of development where I have strong experience are Kernel development, Embedded Solutions, Data Acquisition,Mobile Data Management (MDM) and Mobile Application Management(MAM), Reverse Engineering, Proxy filters, Access management and Enterprise security, Pen testing (VAPT) and Cyber security, Blockchain. If my experience is interesting for you, please feel free to contact me!
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Application Security
    React
    Vulnerability Assessment
    web3.js
    Desktop Application
    Cryptocurrency
    Kernel
    Penetration Testing
    Data Protection
    Smart Contract
    DApps
    Blockchain
    Reverse Engineering
    C++
  • $125 hourly

    • 5.0/5
    • (34 jobs)
    Having worked for many Fortune 100 companies, I now run a boutique cybersecurity consultancy called Careful Security. We serve businesses of all sizes, We providing a 360-degree cybersecurity solution by #Securing Website #Protecting Data #Pass an audit/vendor questionnaire/cyber-insurance questionnaire #SIEM Solution for security monitoring and alerting Past Accomplishments # Designed and Implemented security controls for Warner Bros. iconic shows and movies such as Harry Potter, The Game of Thrones, Curb your enthusiasm. ## Secured video games for EA Sports - FIFA, The Sims, and Madden. ### Secured financial information for high net-worth clients for Goldman Sachs. #### Managed security of personal information for the millions of policyholders in State Farm Insurance. ##### Presented at Conferences and written articles for security journals.
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    PCI
    Email Security
    Certified Information Systems Security Professional
    ISO 27001
    Security Engineering
    Security Infrastructure
    Compliance Consultation
    Cloud Security Framework
    Information Security Audit
    Information Security
    Vulnerability Assessment
    Penetration Testing
    Security Policies & Procedures Documentation
  • $45 hourly

    • 5.0/5
    • (69 jobs)
    Software Architect , Developer and IT Trainer with over 16 years experience in the software industry, specialized in integration solutions, SOA and BPM process automation. I have worked for companies in the industries of banking, telecommunications and media all over Latin America, occupying different roles such as Architect, Technical Lead, Designer and Developer. Specialties Software Architecture, SOA, Enterprise Service Bus, Business Process Management, System Integrations, JEE, Websphere, UML, RUP, JBoss Programming Languages : Java, JSP, Ajax, OOAD, Javascript, SQL, HTML
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    RESTful API
    IBM WebSphere
    JSON
    WSO2
    IBM MQ
    Microservice
    IBM DataPower
    SOAP
    Information Security
    Penetration Testing
    RESTful Architecture
    Java
    Amazon Web Services
    Web Service
  • $30 hourly

    • 4.9/5
    • (48 jobs)
    ✅ I have an extensive background in conducting and leading numerous security audits, penetration tests, and red team engagements for a diverse range of clients, including multinational corporations with large-scale infrastructures and smaller companies seeking enhanced security measures for competitive advantage. As a security Engineer, my day-to-day responsibilities revolve around leveraging my expertise in Penetration Testing, Cyber Security, and Vulnerability Assessment to identify and mitigate potential vulnerabilities. Through these experiences, I have comprehensively understood the prevailing technology stacks employed worldwide, allowing me to discern their security weaknesses with precision. ✅I have obtained various certifications such as OSEP, OSCP, and OSWP. I have received numerous Hall of Fame and bug bounties from multiple sites for discovering bugs in their web applications. ✅I'm currently employed as a Penetration Tester and Bug Bounty Hunter, performing web application and network security assessments. ✅Have been acknowledged by Microsoft, the United States Department of Defense, Sony, Nokia, Asus, Lenovo, and others. ( Proof links are given in the bottom section of the page ). ✅I have performed penetration tests, and vulnerability assessments, and delivered professional reports to companies all over the world in accordance with: ► Offensive Security (OSCP) standards ► OWASP Top 10 Vulnerability ► OWASP API Security Top 10 Vulnerability ► OWASP Mobile Security Top 10 Vulnerability ► Application Security Verification Standard 4.0 (ASVS 4.0) ► CWE Top 25 Most Dangerous Software Errors ► ISO 27001 Penetration Testing ► Payment Card Industry Data Security Standard (PCI DSS) ► General Data Protection Regulation (GDPR) ► Common Vulnerability Scoring System (CVSS) ► Open Source Security Testing Methodology Manual (OSSTMM) ✅ Cybersecurity Certifications Achieved: ► Offensive Security Certified Professional (OSCP) ► Offensive Security Experienced Penetration Tester (OSEP) ► Offensive Security Wireless Professional (OSWP) ► Offshore Pro Labs ✅ The deliverable will be a professional Penetration Testing/Vulnerability Assessment report which includes: ► Executive Summary ► Assessment Methodology ► Type of Tests ► Risk Level Classifications ► Result Summary ► Table of Findings ► Detailed Findings. Each finds listed within the report will contain a CVSS score, Issue Description, Proof of Concept, Remediation, and Reference sections. ► Tool List (Acunetix, Nessus, BurpSuite Professional, Nmap, Netsparker, Metasploit Framework, OpenVAS, Mimikatz, SQLmap, Nikto, Zaproxy, Gobuster, etc.) Participant in the "HackerOne Bug Bounty Platform" and the "Synack Red Team Platform" Web Penetration Testing | Network Penetration Testing | API Security | Vulnerability Assessment | Crypto Security | Crypto Mining My Expertise: Web Application Security Testing Penetration Testing Vulnerability Assessment.
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Ethical Hacking
    Network Penetration Testing
    Black Box Testing
    Security Engineering
    Website Security
    Web App Penetration Testing
    Application Security
    System Security
    Vulnerability Assessment
    Security Testing
    Security Assessment & Testing
    Network Security
    Penetration Testing
    Information Security
  • $70 hourly

    • 5.0/5
    • (51 jobs)
    Hi All! I am an experienced IT Security Specialist with over 9 years of experience. I am a Certified Ethical Hacker (CEHv9) and an OSCP Certified Tester. My core competencies are Security Assessments and Penetration Test. My job is to increase the security of all of your IT Resources and to help you to find corrective solutions to protect your business. My specialties are: ✅ Web Application Penetration Testing ✅ Network Penetration Testing ✅ Mobile Application Penetration Testing ✅ Security Audits ✅ Vulnerability Assessments ✅ Dynamic Code Analyses ✅ Infrastructure Penetration Test If you are looking for a Cyber Security Enthusiast click the green "Invite" or "Hire Now" button at the top of the page to contact me now! I look forward to hearing from you! Thanks.
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Cloud Security
    Internet Security
    Security Testing
    Database Security
    System Security
    Security Infrastructure
    Security Analysis
    Application Security
    Information Security Audit
    Network Security
    Information Security
    Vulnerability Assessment
    Web App Penetration Testing
    Penetration Testing
  • $30 hourly

    • 5.0/5
    • (40 jobs)
    As a engineer, solution-oriented and problem-solving professional with 5 years of experience in building and maintaining web applications and server architecture, I possess a unique combination of technical expertise and strong communication and collaboration skills. My experience has taught me the importance of technical documentation, which I have become highly proficient in. I am always eager to learn more and take on new challenges, and I am particularly interested in staying up-to-date with the latest web frameworks and content management systems. I am confident in my ability to develop and implement effective solutions, and I am excited to continue building on my skills and experience in the field
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Liquid
    Shopify
    React
    Ecommerce
    Data Extraction
    Angular
    Web Development
    Web Scraping
    Node.js
    Full-Stack Development
    Automation
    MongoDB
    Back-End Development
    Python
    MySQL
    Website Security
    Security Assessment & Testing
    Vulnerability Assessment
    Kali Linux
    Security Testing
    Database Security
    Penetration Testing
  • $40 hourly

    • 5.0/5
    • (18 jobs)
    ✅ 2x ⭐️⭐️⭐️⭐️⭐️ Upwork Enterprise Client ✅ Top Rated on Upwork Hi 👋, I’m Anas, an Offensive Security Certified Professional with 5+ years of industry rich experience. I have tested 100+ web and mobile applications and also posses decent skill set in Network Security. I have helped various Government Sectors, Private Business and SaaS startups to achieve their information security needs whether it be just Penetration Testing/ Vulnerability Assessment of their applications or making their environment compliant with various Information Security standards like ISO27001, SOC2 or PCI. Also, I have participated in various bug bounty programs and have acknowledgments from AT&T, Helium, Usability Hub and likes. If you’re looking for something similar, please reach out to me as I’m eagerly waiting to impress you with my work quality and delivery speed. Certification I hold: 1- Offensive Security Certified Professional (OSCP) 2- ISO27001:2013 Lead Implementer (Udemy)
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Ethical Hacking
    Website Security
    Python
    Information Security Audit
    Security Engineering
    Mobile App Testing
    Linux
    Security Analysis
    Amazon Web Services
    Information Security
    Business with 10-99 Employees
    Application Security
    Penetration Testing
    Kali Linux
    Vulnerability Assessment
  • $18 hourly

    • 4.9/5
    • (94 jobs)
    I am a Web Developer and Security analyst, Specialist creating, designing and developing a search engine friendly website with built-in security (against malware/virus) to grow your online business. Since 2017, I have developed a number of websites using PHP, Laravel , jQuery, HTML5, Ajax, Photoshop, JavaScript, using CMS like Joomla, Magento, WordPress, Drupal etc. Expert in : ✅ Web Security ✅ Wordpress/Shopify/Wix/Joomla/Drupal/Moodle ✅ PHP/Laravel/Bootstrap/Jquery ✅ Malware Remove/Security Setup
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    SEO-Based Website
    Website Optimization
    Malware Removal
    Information Security
    Website Migration
    Oracle PLSQL
    Ecommerce Website
    Website Security
  • $35 hourly

    • 5.0/5
    • (9 jobs)
    🔒 Cyber Security Consultant | DevOps & Java Maestro | Spring Boot & AWS Expert| 8+ Years of Experience | B.Sc. in Computer Science 🌟 Greetings! I'm a Technical Lead Cyber Security Consultant with a passion for securing digital assets and developing cutting-edge solutions. With over 8 years of experience in the industry, I've honed my skills in a wide range of fields, including DevOps, Java development, Spring Boot, and AWS. As a security researcher and automation expert, I pride myself on staying at the forefront of emerging technologies and delivering top-notch results for my clients. ✨ Areas of Expertise: Cyber Security Consulting & Penetration Testing (OWASP Standards) DevOps & Java Development (Spring Boot, AWS) Automation & Bot Development Reverse Engineering Security Research & Vulnerability Assessments 🎓 Education: B.Sc. in Computer Science (with a focus on Cyber Security) 💼 Experience & Skills: 8+ years of hands-on experience in the IT industry Proven track record of securing and optimizing complex infrastructures Proficient in designing and implementing secure, scalable, and maintainable systems Skilled in identifying and resolving security vulnerabilities and performance bottlenecks Well-versed in industry best practices and latest trends 🚀 Why work with me? Client-centric approach: I'm committed to understanding your unique needs and delivering tailor-made solutions that exceed your expectations. Quality-driven mindset: I take pride in my work and always strive for excellence, ensuring that your projects are completed on time and within budget. Transparent communication: I believe that open and honest communication is key to a successful partnership, and I'll keep you informed every step of the way. Passion for innovation: As a lifelong learner and tech enthusiast, I'm always exploring new tools and techniques to stay ahead of the curve and bring fresh ideas to the table. 🔥 So, if you're ready to secure your digital assets and propel your projects to new heights, let's connect and make it happen!
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Web App Penetration Testing
    Website Security
    Robotics
    Security Engineering
    Internet of Things
    DevOps
    Security Analysis
    Information Security
    Vulnerability Assessment
    Network Security
    Information Security Consultation
    Cybersecurity Management
    Penetration Testing
    Ethical Hacking
    Automation
  • $39 hourly

    • 4.9/5
    • (38 jobs)
    Experienced of working in SAAS platform . I have a good experience in developing Server-less applications and Micro-services using AWS Lambda, AWS API Gateway, AWS Cognito and AWS S3 with serverless framework. Interoperability Solutions CUMC University - New York, ( 2 years project ) ● Connecting Medical university with External Labs and Primary Care clinics ● Mirth connect HL7- ADT, ORM , SIU message transmission ● DFT for daily billing generation ● EMR customisation - Neurology ● Database performance tuning Delaware Diagnostic Lab- Delware, ● Built a LIS system ● Integration with HEX Labs / QUEST Labs ● ORU and ORM messages ● COVID 19 lab - result generation ● Analytics and BI reports - Dashboard Vistacan EMR - Whitefoot clinic - BC Canada, ● EMR integration Pharmacies ● Customisation of EMR with forms ● eRX - with pharmacies ● SMS/Fax services from Clinic to Lab, Pharmacy and Patient AXAOnehealth - Egypt ● Deployed customised EMR solutions for 6 clinic ● Acted as Business analyst to build a comprehensive EMR ● Integration with Egyptian Labs using Mirth Connect and HL7 ● Multi specialty - EMR , Advanced KPI for CDS ● Trained doctors , nurses - gathered requirements - translated to Business needs with tech team. EMR Customization & Integrations ● OpenEMR Customization - ○ Ophthalmology , ○ Neurology , ○ Family Medicine , ○ Dentistry , ○ OBG, ○ Paediatrician, ○ Physiotherapist RCM - Revenue Cycle Management Development ● US Billing cycle - implementation ● Eligibility check using X12 - Real time ● Claim and Billing integration with medicare / medicaid insurance companies ● Dashboard for analytics ● Claim scrubbing ● EDI - integration with Clearing houses in U.S We program entirely on SOA with code structure based on Restful APIs, especially with Cloud based applications (AWS, Azure, Rack space, Google cloud). We work on agile methodology with daily or weekly scrum meeting to meet client’s expectations. I am willing to sign NDA before any proceedings as I understand that the security and confidentiality of your product holds the utmost importance. With deep knowledge of .NET framework including Asp.Net MVC 4/5, .Net Core, Web API, C#, EF, KnockOut, Angular, Bootstrap, HTML5, CSS3, JQuery, SQL, have involved in handling many aspects of the application, including but not limited to performance, scalability, security and designing service oriented architecture following SOLID principles. Expertise in techstack and Industry best practices we follow: * Responsive UI development by using React Js +Redux, React native + Redux, API Service integration, SQLite, Firebase, JSON parsing, web Service. * Advanced analytical skills, in-depth knowledge of the Software Development Life Cycle (SDLC). * ASP.Net, C#, .Net Core, MVC. * Angular 8+, React.JS, JavaScript, jquery. * Secure Rest API calls, session token using OAuth authentication and basic browser authentication. * Ability to create complex RESTful API services with automated documentation using .NET. * Bootstrap, HTML5, LESS, Regular expressions. * Database: MS SQL, SQL Azure, PostgreSQL, MongoDB, DynamoDB and MySQL. * Entity framework, MS Azure App service, Razor Engine, MS WIndows Azure, MS Active Directory, MS Azure blob services. * Writing reusable libraries with proper usage of OOPs, design scalable, loosely coupled and highly testable service-oriented architecture following SOLID principle. * Database design, query optimization, query execution plan review, indexing, normalization/ denormalization, stored procedure, views, SSRS, SSIS and SSAS. * Unit test development for the front as well as back end – Jasmine, Karma, MsTest, nUnit, xUnit, mocking framework – Typemock, moq, rhino * Proficient understanding of code versioning tools – TFS, SVN, Git – Pull/ push/ commit, branches/ shelve changes, etc. * Sprint based delivery and retrospective meetings to improve via effective project management tools like Jira, Trello, Asana, basecamp etc. * CI/CD – Jenkins, AWS, GitLab, DevOps Keywords: web application developer, web app developer, SaaS developer, ERP developer, CRM developer, eCommerce developer, platform developer, MVP developer, startup developer, API developer, marketplace developer, software architecture, database architecture, software engineer, web programmer.
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    SNOMED-CT
    Epic Systems Medical Software
    Electronic Data Interchange
    Mirth Connect
    Telemedicine
    Health Level 7
    eClinicalWorks
    Healthcare Interoperability
    Electronic Medical Record
    HIPAA
    FHIR
    RESTful Architecture
    .NET Framework
    Website Development
    Web Development
  • $150 hourly

    • 5.0/5
    • (14 jobs)
    Specialist in IT implementation and system security management across numerous sectors, to include audit and compliance management with numerous frameworks including FISMA, SOX, SOC, PCI DSS, HIPAA, HITECH, GDPR, IASME, CIS, DOD RMF, and NIST Risk Management Framework. Recognized expert at designing complex IT architectures, policy creation and enforcement, and developing dynamic and tailored security programs; balancing business operations with IT operations and cyber-security. Degrees: Master in Business Administration (concentration in IT Security), Bachelor of Science, IT Management Certifications: Certified Information System Security Professional - Information Security System Engineering Professional (CISSP-ISSEP) Certified Information System Security Professional (CISSP) Certified Information Systems Auditor (CISA) Certified Ethical Hacker (CEH) IT Infrastructure Library (ITIL) Languages: English, German
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Data Protection
    Security Infrastructure
    Network Analysis
    HIPAA
    Information Security Audit
    Compliance Consultation
    Regulatory Compliance
    Information Security Awareness
    Certified Information Systems Security Professional
    IT Compliance Audit
    Information Security Governance
    Web Design
    Network Security
    Information Security
    Vulnerability Assessment
    Information Security Consultation
  • $100 hourly

    • 4.8/5
    • (31 jobs)
    TOP RATED ELITE FREELANCER on UpWork with 20 years of experience in Network Engineering, Cyber-security and Solutions architecture. A Cisco Certified Network Professional (CCNP) and Azure Certified Solutions Architect - Expert. Advanced hands-on in Cisco FirePower and Palo Alto NGFW. I adapt to new technology quickly and can accomplish project goals with quick turn-around times. When undertaking a project, it is essential to understand the client's ecosystem and how their business goals align with their technology requirements. I use proven techniques and methodologies to scope out problems and provide solutions that have low risk and quick turn-around times in production environments, translating into cost savings, increased productivity, and enhanced security posture. While Cisco networking is my core specialization, I have worked with a wide variety of networking and server vendors, including Palo Alto, Juniper; HP; F5; Meraki; Fortinet; Aruba; Ubiquiti; Darktrace; SonicWall; Netgear; Windows; Linux; VMWare; etc. I am also well versed in AWS, Azure, and IBM cloud solutions. Managed IT and Security services is my passion. I have managed teams and designed data centers and enterprise networks of various sizes spanning geographic locations with hundreds of thousands of end-users. My experience in consultation, architecture, strategy, and tactics include but are not limited to: - Hyperconverged Infrastructure - SD-WAN (Velocloud, Fortinet, Cisco) - Security assessment and gap analysis - Compliance frameworks and road-mapping - SOAR playbook modeling - SIEM design and implementation - SOC planning, design, and implementation - Datacenter design and deployment - Windows Servers - SSO & MFA - Palo Alto Panorama - Palo Alto Advanced End-Point Protection - Juniper Mist cloud - Azure and AWS solutions architecture - Dell OpenManage Enterprise - Wireless & Mobility - Dynamic routing protocols - EIGRP, OSPF, IS-IS, and BGP - Network analysis - Network rationalization - Network automation - Ansible and Puppet
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Wireless Network Implementation
    Juniper
    Cisco Firepower Threat Defense
    VMWare
    Microsoft Azure
    Security Infrastructure
    Cisco Router
    Certified Information Systems Security Professional
    Multiprotocol Label Switching
    Cisco ISE
    RADIUS
    VPN
    Palo Alto Firewalls
    Network Engineering
    Network Design
  • $40 hourly

    • 5.0/5
    • (4 jobs)
    ◼️ Services: ⠀⠀▪️ External infrastructure penetration testing ⠀⠀▪️ Web application security analysis ⠀⠀▪️ Mobile application security analysis ◼️ Certificates: ⠀⠀▪️ [2021] OSCP - Offensive Security Certified Professional. ⠀⠀▪️ [2023] OSWE/AWAE - OffSec Web Expert/Advanced Web Attacks and Exploitation ◼️ Ready to sign all necessary documents ⠀⠀▪️ Pentest agreement ⠀⠀▪️ Non-Disclosure agreement ⠀⠀▪️ Cancellation agreement ◼️ Work only with licensed software
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Firewall
    Network Security
    Vulnerability Assessment
    Reverse Engineering
    Security Analysis
    Internet Security
    Application Security
    Information Security
    Information Security Audit
    Website Security
    Security Infrastructure
    Web App Penetration Testing
    Penetration Testing
    Network Penetration Testing
  • $75 hourly

    • 5.0/5
    • (23 jobs)
    An experienced Information Security Specialist with 20 years of experience: Cyber Security Framework (SANS, NIST, CIS, ISO, GDPR, SWIFT CSP & CSCF) Implementer, PCI DSS QSA, SOC 2, ISO 27001 Lead Auditor, ISO 27001 Lead Implementer, Certified Data Privacy Solutions Engineer (CDPSE), IT Audit compliance consultant
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    NIST SP 800-53
    SOC 2 Report
    Cybersecurity Management
    Policy Writing
    Information Security Consultation
    Regulatory Compliance
    Website Security
    Security Policies & Procedures Documentation
    HIPAA
    Vulnerability Assessment
    PCI DSS
    IT Compliance Audit
    ISO 27001
    Information Security Audit
    Cybersecurity Management
  • $15 hourly

    • 4.9/5
    • (25 jobs)
    I have a total of 5 years of professional experience as IT specialist, writing contents, removals of contents, data entry, customer service, graphic designing, social media manager, and administrative tasks.
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Information Technology
    Ecommerce Website
    Microsoft Visio
    Technical Writing
    End User Technical Support
    Social Media Website
    Network Design
    Customer Service
    Reputation Management
    Unified Threat Management
    Data Entry
    Canva
  • $60 hourly

    • 4.9/5
    • (121 jobs)
    In the last years I did more than 100 Penetration-Tests and Security Assessments. Most of them on Web and Mobile applications with Finance Background implemented with various technologies and frameworks. (J2EE, ASP, PHP). Based on my daily work I am experienced with all common attack vectors and mitigation techniques. Since 2009 I am CISSP (Certified Information Systems Security Professional) and since 2017 I am CEH (Certified Ethical Hacker) certified. Please check also my UPWORK work history and client feedbacks. I am offering professional Black and Grey-box Penetration tests for Web and Mobile Applications. Sorry, I am not able to locate your girlfriend, recover your lost FACEBOOK, GMAIL, YAHOO etc. account or find your lost phone. Please do not invite me to such jobs. Before I start offensive tests, I may ask you for evidence that you are the site owner or to show me that you have admin access.
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Internet Security
    Wireless Security
    Java
    Application Programming
    Security Analysis
    Certified Information Systems Security Professional
    Network Security
    Information Security
    Internet Security
    Penetration Testing
  • $25 hourly

    • 4.6/5
    • (34 jobs)
    I am Cyber Security Engineer and DevSecOps, have more than 5 years of experience. I can do Penetration testing (Applications), IoT penetration testing and cloud penetration testing, system admin. All of my support / I can help you with the following: ✅ Web application security ✅ API security ✅ Network Infra security ✅ Cloud Infra security ✅ Information security auditing Compliance ✅ OWASP top 10 Vulnerabilities findings ✅ HIPPA ✅ ISO 27001 etc. compliance Automated / Manual Vulnerability Assessment and Penetration Testing. (VA&PT) ✅ Security Best Practice - Web apps / Website - Server configuration - Cloud Infrastructure ✅ Network and Cloud Security * Prevent DDoS * Configure web firewall * Configure network firewall * Amazone Web Services (AWS) * Cloudflare integration. * Linux server issue (Redhat, CentOS etc.) * Proxy server configuration ✅ Source code vulnerability check. - Snyk - Sonarqube enterprise - Synopsys Coverity / Seeker. ✅ CMS security/recovery expert. - Wordpress - Magento - Joomla - Wordpress malware remove - Wordpress virus removal ✅ Recover hacked system ✅ Secure any Website/ web application ✅ Digital Forensic / Log analysis ✅ Forensic Android/IOS/Windows/Linux/MAC OS. ✅ Forensic Web server and Web application. ✅ IoT Security / Penetration Testing. ✅ Ransomware remove from the system. ✅ Conduct cyber security training. ✅ Remove any malware / Virus from your system. ✅ Mobile Device Management (MDM). ✅ SIEM Integration. ✅ IT Consultancy. ✅ Information Security Audit. Any task related to cyber security, system engineering & Cloud infrastructure.
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Information Security Audit
    Website Security
    Ethical Hacking
    Web App Penetration Testing
    Cloud Security
    AT&T Cybersecurity
    Metasploit
    Kali Linux
    Cybersecurity Management
    Security Assessment & Testing
    Penetration Testing
    Information Security
    Application Security
    Security Testing
    Vulnerability Assessment
  • $60 hourly

    • 5.0/5
    • (43 jobs)
    Since 2014 I work professionally as a Pen Tester/Security Researcher. Between 2008-2013, prior switching full time to info sec, I've worked as a Programmer (C/C++, PHP, Java, node.js) and DevOps (AWS-based environments). Currently I work under my own brand (Z-Labs) delivering Penetration Testing / Adversary Simulation Exercises services to clients around the globe. I pride myself for: 1. Offering high quality penetration testing services conducted in safe and controlled manner by certified Security Expert (Since 2014 I'm CISSP, since 2016 I'm OSCP and since 2017 I hold SANS GXPN certification). 2. Putting emphasis on advanced manual attack techniques and on adherence to industry-wide standards and methodologies: OWASP TOP 10, OWASP ASVS, OSSTMM and PTES during the testing. 3. Delivering actionable and professionally written reports (ready to be shared with your stakeholders at all levels). 4. Possessing advanced R&D capabilities Offered Services: 1. Network Penetration Testing / Adversary Simulation Exercises 2. Web Application Penetration Testing 3. Cloud Security Assessments 4. C/C++ source code audits and vulnerability research Offered Solutions: 5. Continuous, Expert-assisted Vulnerability Assessment
    vsuc_fltilesrefresh_TrophyIcon Web Application Security
    Compliance Consultation
    Certified Information Systems Security Professional
    Cloud Security
    Network Penetration Testing
    Web App Penetration Testing
    Security Infrastructure
    Cloud Security Framework
    ISO 27001
    IT Compliance Audit
    Penetration Testing
    Information Security
    Security Assessment & Testing
    Vulnerability Assessment
    Cybersecurity Management
  • Want to browse more freelancers?
    Sign up

How it works

 
 
1. Post a job (it’s free)
 
Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.
 
 
2. Talent comes to you
 
Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.
 
 
3. Collaborate easily
 
Use Upwork to chat or video call, share files, and track project progress right from the app.
 
 
4. Payment simplified
 
Receive invoices and make payments through Upwork. Only pay for work you authorize.
 
 
 
Trusted by 5M+ businesses
 
 
 
 
 
 
 
How do I hire a Web Application Security Freelancer on Upwork?
 
 
 
You can hire a Web Application Security Freelancer on Upwork in four simple steps:
 
     
  • Create a job post tailored to your Web Application Security Freelancer project scope. We’ll walk you through the process step by step.
    •  
  • Browse top Web Application Security Freelancer talent on Upwork and invite them to your project.
    •  
  • Once the proposals start flowing in, create a shortlist of top Web Application Security Freelancer profiles and interview.
    •  
  • Hire the right Web Application Security Freelancer for your project from Upwork, the world’s largest work marketplace.
    •  
 
At Upwork, we believe talent staffing should be easy.
 
 
 
How much does it cost to hire a Web Application Security Freelancer?
 
Rates charged by Web Application Security Freelancers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
 
 
 
Why hire a Web Application Security Freelancer on Upwork?
 
As the world’s work marketplace, we connect highly-skilled freelance Web Application Security Freelancers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Web Application Security Freelancer team you need to succeed. 
 
 
 
Can I hire a Web Application Security Freelancer within 24 hours on Upwork?
 
Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive Web Application Security Freelancer proposals within 24 hours of posting a job description.
 
 
 
 
 
     
 
 
 
                Schedule a call
              
 
 
Looking to hire for long-term or full-time assignments? See how Upwork Payroll simplifies admin.