Hi I am a Network / Systems Administrator with extensive experience working remotely for high ticket MSPs. I am comfortable leading teams and have worked as a Dev Ops, Operations, Customer Success / Satisfaction, and Project Manager. My certifications include A+, Network+, Security+, Project+, CySA+, MCSA Server 2008 (Microsoft), and CCNA (CIsco). I specialize in technical writing and creating and developing SOPs. I pride myself in bringing personable, efficient, and most importantly human IT services to real people. I am comfortable taking ownership of Client Accounts and maintaining not only strong professional relationships, but also keeping things human and personable as well. I'm looking forward to working with you!

Hello! I'm Tristan Curtis, a Top Rated IT Professional / Sr. Software Engineer with a passion for helping people with their technical needs. Backed with a degree in Information and Network Technology, accompanied by multiple certifications, and strengthened by extensive hands-on experience, I am well-equipped to tackle virtually any challenge you throw my way! Understanding the need for prompt assistance, I strive to be available within a moments notice, day or night. I offer a wide array of services including, but not limited to Web Application Development ▪️ Backend: PHP, Laravel ▪️ Frontend: Vue.js, JavaScript, jQuery, HTML, CSS, Sass, Bootstrap ▪️ Databases: MySQL, SQL Server, MariaDB, PostgreSQL ▪️ Specializes in: architecting complex web applications from scratch based on a provided design Web Administration ▪️ Domain and DNS support ▪️ Troubleshooting issues with Nginx, Apache and WHM/cPanel ▪️ Fine-tuning PHP FPM for optimal scalability ▪️ Installing SSL certificates and addressing renewal issues with LetsEncrypt / Certbot ▪️ Migrating websites from one hosting company to another Network Administration ▪️ Proficient in managing networks powered by the following vendors: UniFi, pfSense, MikroTik, Cisco ▪️ Expertise in deploying and troubleshooting wireless connectivity ▪️ Strong knowledge of VPN connectivity for remote access and site-to-site connections ▪️ Experience developing custom splash pages / captive portals to authorize wireless connections Desktop Administration ▪️ Experience with the following operating systems: Windows, Mac OS, Ubuntu and various other Linux distros ▪️ Virtual desktop administration utilizing VMware Horizon Database Administration ▪️ Experience with: MySQL, MS SQL Server, MariaDB and PostgreSQL ▪️ Familiarity with: Google Cloud SQL and AWS RDS Virtual Infrastructure Administration ▪️ Proficient in VMware ESXI/VMware vCenter and Hyper-V Email Administration ▪️ Setting up SPF, DKIM and DMARC for enhanced email security ▪️ Troubleshooting email deliverability issues ▪️ Seamless migration of email from one platform to another ▪️ Well versed in Google Workspace and Office 365

I have 6+ years of experience in the IT Industry with excellent knowledge and skills in server administration, Cpanel, DNS, nameservers, email account setup, email deliverability, email marketing, Google Suite Administrator, Multiple Email Account Management, Website Migration, Virtual Assistant, Microsoft Outlook, Google Suite, DNS, Email Marketing, Data Migration, Internet Marketing Email & Newsletter, Email Deliverability, Email Campaign Setup, Email Security, Email Marketing Strategy, SendGrid, Email Support, Office 365, Email Communication, Multiple Email Inbox Handling, Emails & Newsletters. My main goal is to keep my clients happy with my services. Skills and others: - SSH/Terminal/Shell - DNS and DNS records - Mail deliverability (DNS, SPF, DKIM, DMARC...) - Migrations (Sites, emails, databases) - Emails - SPAM - Security and Malware Cleanup. - VMWare - Hyper-V - IPTables - Firewall - UFW - Firewall - firewall-cmd - VPS/Virtual Machines - Dedicated Servers - SSL Certificates (Installation and settings) - WebServers (Apache, LiteSpeed, Nginx, IIS) - Databases (MySQL, SQL Server, MariaDB) - CloudLinux I can adapt to most jobs, if you have a problem or request about something that I do not know, I am passionate about learning and solving problems that are new to me.

⭐️⭐⭐️⭐️⭐️Most penetration testers give you 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐞𝐝 𝐬𝐜𝐚𝐧𝐧𝐞𝐫 𝐫𝐞𝐩𝐨𝐫𝐭𝐬 𝐟𝐢𝐥𝐥𝐞𝐝 𝐰𝐢𝐭𝐡 𝐧𝐨𝐢𝐬𝐞. I deliver 𝐫𝐞𝐚𝐥, 𝐞𝐱𝐩𝐥𝐨𝐢𝐭𝐚𝐛𝐥𝐞 𝐯𝐮𝐥𝐧𝐞𝐫𝐚𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬 with 𝐜𝐫𝐲𝐬𝐭𝐚𝐥-𝐜𝐥𝐞𝐚𝐫 𝐏𝐫𝐨𝐨𝐟 𝐨𝐟 𝐂𝐨𝐧𝐜𝐞𝐩𝐭𝐬 and 𝐬𝐭𝐞𝐩-𝐛𝐲-𝐬𝐭𝐞𝐩 𝐫𝐞𝐦𝐞𝐝𝐢𝐚𝐭𝐢𝐨𝐧 𝐠𝐮𝐢𝐝𝐚𝐧𝐜𝐞 - the exact flaws attackers would use to break your system. 𝐈’𝐦 𝐧𝐞𝐰 𝐭𝐨 𝐔𝐩𝐰𝐨𝐫𝐤 ⭐️𝐛𝐮𝐭 𝐚𝐬 𝐚 𝐂𝐲𝐛𝐞𝐫𝐬𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐄𝐱𝐩𝐞𝐫𝐭⭐️𝐏𝐞𝐧𝐞𝐭𝐫𝐚𝐭𝐢𝐨𝐧 𝐓𝐞𝐬𝐭𝐞𝐫 𝐰𝐢𝐭𝐡 𝟏2+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐩𝐫𝐚𝐜𝐭𝐢𝐜𝐚𝐥 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞⭐️ 💡 Why Me 🌍 ✔ 660+ clients in 36 countries, 12+ years experience 🛡️ ✔ Findings that prevent breaches & support compliance 👨‍💻 ✔ Developer-friendly remediation & free retesting 🔄 ✔ ~80% repeat clients I am a Senior Penetration Tester & Security Consultant with more than 12 years of practical cybersecurity experience. Over this time, I have successfully delivered 660+ projects in 36 countries and built long-term partnerships with companies of all sizes - from early-stage startups to enterprise-level organizations. My clients trust me because I don’t just list vulnerabilities: I make sure they are fixed, retested, and completely closed. This is why I maintain an exceptional ~80% client return rate. I’ve helped organizations in FinTech, e-Commerce, Healthcare, SaaS, Blockchain, and Government industries protect sensitive data, meet compliance requirements, and maintain customer trust. My security assessments have directly prevented breaches, helped companies secure investments, and supported successful audit certifications such as SOC2, HIPAA, and ISO27001 readiness. 🛡️ My Core Expertise I provide a full spectrum of offensive and defensive security services: 🔹 Web Application Penetration Testing Manual and automated testing for vulnerabilities like SQL Injection, Cross-Site Scripting (XSS), Cross-Site Request Forgery (CSRF), Remote Code Execution (RCE), Insecure Direct Object Reference (IDOR), Local/Remote File Inclusion (LFI/RFI), authentication & authorization flaws, business logic vulnerabilities, and misconfigurations. 🔹 Mobile Application Security (Android & iOS) Reverse engineering, static and dynamic analysis, testing data storage protections, API communication security, and exploitation of insecure permissions or misconfigurations. 🔹 Cloud Security Assessments (AWS, Azure, GCP) IAM misconfigurations, insecure storage buckets, weak API protections, Kubernetes & container orchestration security, serverless architecture hardening, and compliance readiness. 🔹 Smart Contract Security Audits (Solidity / EVM) Analysis of reentrancy issues, integer overflow/underflow, unchecked external calls, logic vulnerabilities, and economic flaws that could lead to devastating exploits. 🔹 Infrastructure & Network Penetration Testing External and internal testing for weak services, open ports, privilege escalation, VPN & firewall bypasses, and lateral movement simulation. 🔹 Code Review (SAST/DAST + manual) Deep review of source code to detect insecure coding practices and logic errors before they reach production. 🔹 Incident Response & Forensics Rapid response to active breaches, malware analysis, and post-incident hardening to prevent recurrence. ✅ Results I Deliver - When you work with me, you don’t just get a report - you get tangible outcomes: - Actionable PoCs → Every vulnerability is proven with working exploits, screenshots, and technical detail. - Prioritized Remediation → I rank vulnerabilities by real-world risk and business impact so your team knows what to fix first. - Executive Summaries → Easy-to-understand reports for stakeholders, investors, or compliance auditors. - Free Retesting → After you fix issues, I verify that vulnerabilities are fully patched. - Reduced Risk Exposure → My clients have prevented multi-million-dollar losses by patching critical flaws I discovered. 🏆 Track Record 1. Helped a FinTech startup secure $20M funding by fixing AWS & web flaws pre-SOC2 audit. 2. Discovered and patched critical smart contract bugs before launch. 3. Enabled a healthcare SaaS to pass HIPAA by closing PHI exposures. 4. Cut remediation time by 40% with clear PoCs & prioritized fixes. 5. Prevented severe breaches for an e-commerce platform during peak sales. ⚙️ How I Work 1️⃣ Scope & NDA → goals & rules 2️⃣ Recon → OSINT, surface mapping 3️⃣ Exploitation → manual + automation 4️⃣ Reporting → PoCs + executive summary 5️⃣ Retesting → free verification 6️⃣ Guidance → long-term security 🧰 Tools & Skills Burp Suite, Nmap, Metasploit, Wireshark, OWASP ZAP, custom scripts | OWASP, PTES, MITRE ATT&CK | OSCP, CEH, CompTIA Security+, CISSP-level expertise. ✨ Final Note I don’t just scan - I prove, fix, and retest vulnerabilities until closure. 🚀 Let’s secure your app, cloud, or smart contract today. Send me your scope for a tailored plan within hours. 💬 Cybersecurity Expert Cybersecurity Expert Cybersecurity

I count myself fortunate to be deeply passionate about my work. I specialize in crafting modern workplace solutions tailored for Small and Medium-sized Businesses (SMBs). Thanks to this amazing community, I now have: ✅A top-rated emblem My mission is to eliminate downtime, streamline operations, boost efficiency, and elevate productivity by harnessing the power of top-tier technology. Qualified: ⭕3cx advanced engineer ⭕Acronis engineer ⭕Vade secure certified ⭕Several Azure certifications At the heart of my strategy is ensuring our clients stay at the forefront of IT innovation. I take pride in being the trusted facilitator that businesses rely on to optimize their IT solutions for peak speed, stability, and security. ⭐Cisco ⭐Unifi ⭐Microsoft365 ⭐Google ⭐DNS ⭐Cyber security ⭐Servers ⭐Mobile management ⭐3CX ⭐Projects ⭐Azure ⭐Papercut

I’m a VoIP specialist with extensive experience building solutions using Asterisk, FreePBX, and FreeSWITCH. I’m also a Phone AI agent developer with a strong background in AI phone agents based on the OpenAI API, ElevenLabs, and the VAPI framework. As a top Twilio developer, I work extensively with Twilio SMS and Voice APIs, integrating communication systems with external platforms. I also work with traditional call center solutions such as VICIdial, including IVRs, auto-dialers, and API integrations. Additionally, I’m a full-stack developer skilled in Python, Node.js, JavaScript, and PHP, with experience in both relational and non-relational databases, delivering end-to-end solutions from backend to frontend.

I’m a Cybersecurity Systems Engineer with hands-on experience securing networks, firewalls, and enterprise IT environments. Over the past several years, I’ve delivered solutions for organizations using technologies like Fortinet (FortiGate, EMS, Authenticator, SIEM), Palo Alto NGFW & GlobalProtect, Forcepoint Web Security, Symantec Endpoint Protection, Tripwire, and SolarWinds. What I bring to your project: 🔐 Firewall & VPN Expertise – Deploying, configuring, and troubleshooting NGFWs (FortiGate / Palo Alto) with site-to-site VPNs, SSL VPNs, IPSec tunnels, and MFA integrations. 🌐 Web & Endpoint Security – Implementing DLP, SWG, EDR, and endpoint controls to protect users and data. 🛠️ Monitoring & Compliance – Building monitoring with SolarWinds, enforcing compliance with Tripwire, and fine-tuning SIEM rules. ⚡ Problem Solving – Quick, reliable troubleshooting for performance issues, upgrades, and complex network/security incidents. Clients value me for being detail-oriented, responsive, and solution-driven. I don’t just configure and leave—I make sure systems are stable, secure, and documented for long-term reliability. If you need someone who can secure your environment, optimize your firewall policies, or support your IT projects end-to-end, let’s talk. I’ll make sure your systems are not only working, but working securely.

Over the past several years I have been building hands-on experience supporting organizations with day-to-day cloud operations, user lifecycle management, security administration, and endpoint management across Microsoft, Google, and cloud-native environments. Along the way I have ⮚ Built hands-on professional experience administering Microsoft 365 and Google Workspace environments, including user provisioning and deprovisioning, license management, security policy administration, mail and collaboration platform support, and day-to-day tenant management; ⮚ Worked extensively with identity and access management technologies including Microsoft Entra ID, SSO integrations, SCIM provisioning, MFA enforcement, conditional access policies, group-based access management, and automated user lifecycle workflows across multiple SaaS platforms; ⮚ Managed endpoint administration across Windows, macOS, iOS, and mobile environments using Microsoft Intune, Mosyle MDM, Apple Business Manager, and modern device management frameworks focused on compliance, enrollment automation, and policy enforcement; ⮚ Developed practical cloud infrastructure knowledge in Microsoft Azure and AWS, working with networking, resource governance, cloud security controls, infrastructure deployment, backup solutions, and supporting cloud environments for both internal operations and customer-facing systems; ⮚ Built experience supporting security-conscious environments through implementation of endpoint security solutions, identity security policies, monitoring platforms, email security systems, backup and recovery solutions, and operational security practices designed around modern cloud-first organizations; ⮚ Continued investing heavily in professional development through certifications and independent study, covering Microsoft Azure administration and architecture, AWS cloud infrastructure, infrastructure automation, scripting with PowerShell and Bash, and security operations practices used in modern IT environments. My background working in both customer-facing and technical roles has given me strong communication skills, adaptability, and the ability to work effectively in remote environments where ownership and reliability matter. I work comfortably with both technical teams and non-technical stakeholders, and I genuinely enjoy solving operational problems that make organizations run more efficiently and securely. I’d be happy to discuss how I can help support your business.

Upwork Badges: === * Top Rated Plus * Expert-Vetted We provide Managed Cloud Services, DevOps and Cloud Transformation Services to help businesses streamline their technology, engineering, operations and drive growth. Our technology services are customised to fit your unique needs and goals. We take the time to understand your business and its challenges, developing a tailored plan to help you achieve your goals. Our team of experts are here to provide the guidance and support you need to make informed technology decisions for your business. We were founded and managed by a team of former AWS, Rackspace, Cisco and Salesforce technical and business leaders. Our team has a wealth of experience in a variety of industries, giving us the knowledge and expertise to tackle even the most complex challenges. And our services don't stop once we've delivered a solution - we provide ongoing support and maintenance to ensure that your systems are always running at their best, giving you more time to focus on core business activities. Our Services: === - Managed Cloud Services - Managed Services - FlexOps (DevOps-as-a-Service) - Cloud Cost Optimizations - Cloud Transformation - Audit & Compliance Consulting Highlights: === Our proven track record of delivering successful projects and excellent continuous support for our customers across different industries is a testament to our expertise and commitment to our customers. We have delivered projects and continuous support for customers across multiple industries including Healthcare, AI, Fintech, Retail, Gaming and Technology industries. We delivered end-to-end (design, implement and operate) highly available, scalable, performant and secure cloud infrastructure in AWS for a customer in AI industry providing computer vision based industrial solutions. Application was based on microservices architecture and was designed to support 1000s of concurrent users. We designed and implemented EKS with autoscaling, CI/CD pipeline with Gitlab CI and ArgoCD, observability with Grafana-Prometheus stack, security and compliance, cost optimization and disaster recovery with AWS Backups. We are still providing ongoing support and Managed Cloud Services to this customer so that they can focus on their core business activities and grow their business knowing their cloud infrastructure is in the safe hands. Our experience in compliance and security is a key differentiator for us. We delivered projects for customers in Healthcare and Fintech industries where we have helped them to achieve HIPAA and PCI compliance cloud infrastructure and application architecture. We have also delivered projects for customers in Gaming industry where we have helped them to achieve ISO and SOC2 compliance. We optimize our customers cloud spend by saving average 20% of their total cloud spend so that our customers can do more with less in the cloud. Migration to cloud is a complex process and requires a lot of planning and execution. We have helped customers to migrate their applications to cloud with minimal downtime and zero data loss. One of our customer in High Performance Computing industry wanted to migrate their workload from GCP to AWS with minimal disruption, zero data loss with a fixed deadline, we delivered not only successful migration from planning to execution but also helped them to save cost by right sizing their compute instances and storage. We delivered successful Application Modernization and Migration for a customer in Gaming industry that includes migrating of their legacy application from on-premises to AWS with minimal disruption and zero data loss and help them modernize their application architecture by implementing microservices architecture with containers and Kubernetes, observability stack for application insights and continuous support with our Managed Cloud Services. Our Expertise: === - Cloud (AWS, Azure, GCP, DigitalOcean) - Linux (Ubuntu, Debian, CentOS, RedHat, Slackware, Gentoo) - Storage (Ceph, ZFS, GlusterFS, NFS, S3, EFS, EBS, EFS, S3, GCS, Azure Blob Storage) - Container and Orchestration (Docker, Kubernetes (EKS/AKS/GKE/On-prem/KOPS), OpenShift, ECS, Nomad) - Virtualization (KVM, QEMU, Xen, VMWare) - CI/CD (Jenkins, Gitlab CI, Github Action, CircleCI, TravisCI, ArgoCD, FluxCD, Spinnaker) - RDBMS (MySQL, MariaDB, Postgres, Aurora) - NoSQL (MongoDB, Redis, CouchDB, DynamoDB, RethinkDB) - Observability Stack (Prometheus-Grafana, Elastic-Kibana-Logstash, Logz.io, DataDog, NewRelic, AppDynamic, Dynatrace, Splunk, PRTG, Nagios, Zabbix) - Web Services (Apache, Nginx, Lighttpd, Caddy, HAProxy) - Messaging (RabbitMQ, Kafka, ActiveMQ, SQS) - VPN (OpenVPN, Wireguard, IPSec/IKEv2, PPTP, L2TP) - Email (Postfix, Zimbra, Amavis, Spamassassin, Dovecot, ClamAV, Postgrey, Postdrop, Samba, CalDav) Our Certificates: === - AWS Certified Solutions Architect – Professional (SAP-C01) - AWS Certified Advanced Networking – Specialty (ANS-C00) - Hashicorp Terraform Associate (002)

When a call center's VoIP system goes down or underperforms, every minute costs money. I help BPOs, startups, and telecom businesses fix, build, and scale their VoIP infrastructure — reliably and fast. With 5+ years of hands-on experience, I specialise in: • VICIdial setup, optimization & troubleshooting on AWS • Asterisk & FreeSWITCH configuration, IVRs, and call routing • SIP trunk setup, carrier integration & call quality debugging • Predictive dialer & voice broadcasting systems • Linux server administration and firewall/network configuration I have deployed VoIP systems for businesses ranging from small startups to large BPO operations handling high call volumes. Most issues I can diagnose and resolve within hours. What clients get working with me: ✔ Fast response and clear communication ✔ Deep SIP/VoIP debugging — not just surface-level fixes ✔ Long-term support, not just one-time patches ✔ AWS-ready deployments built for scale If your VoIP system needs fixing, building, or improving — message me and let's get it sorted.