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$200 hourly
Greg D.
- 5.0/5
- (8 jobs)
Currently implementing AI Agent workflows with custom code and N8N. - Just completed LlamaIndex + Anthropic + OpenAI chatbot project. - AI and ML applications, LlamaIndex, LangChain, AWS Bedrock, Azure AI, Sagemaker - Python Data Science/Spark/Sagemaker/DynamoDB/RedShift - Java and Groovy - Golang - AWS: DynamoDB, RDS, Aurora, Lambda, ECS, Step Functions, EMR, S3, Kinesis, Glue, OpenSearch, CodeGuru, Sagemaker, etc. AI/LLM Key Skills: Activation Function(s) Backpropagation Bias Variance, underfitting Supervised Training Unsupervised Training Cost/Loss Functions Gradient Descent P-tuning Reinforcement Learning Human Feedback Chunking Fine Tuning Data Labeling/Data Annotation AutoPrompt SafeTensors Hugging Face Transformers Library From 2018 to 2023 I was the VP of Architecture for Jobble.com, scaling up Jobble's APIs from two EC2 instances, to an intermediate step on Elastic Beanstalk to a fully developed architecture utilizing DynamoDB, RDS - Aurora, Redshift, Glue, Athena, AppSync, GuardDuty, WAF, ECS, Fargate, API Gateway, S3, Lambda, with fine grained IAM access controls, and implemented an email sender on SES. Have utilized many other AWS services over the years in areas such as Sagemaker, almost every database service offered including Quantum Ledger, Security, and account budgeting with years of experience in cost control. We utilized Cloudformation in the beginning and then transitioned to Terraform for our infrastructure as code solution. Implemented custom job category classifier (machine learning model) system with custom training and deployment. At Jobble, the CEO and I developed a job feed system that increased company revenue by 400% in one year. I was the sole developer of the application and then as we started to break apart the monolithic application, I handed the pieces to teams to maintain the application. Also at Jobble, I implemented an email sending solution with DynamoDB, ECS, and SES to send millions of job alert emails. In 2016 and 2017 I was the Head of Development for a startup in the fashion industry where we built a search engine for fashion photographs from runway shows. It was a private fashion industry tool and after manually tagging about 5000 photographs we built a machine learning image classifier for tagging and classifying photographs. In 2014 and 2015 I was the CTO and lead developer for VoyHoy, a travel startup in Latin America where I developed a complete web scraping architecture, integrations with payment providers, integrations with multiple travel companies, and a transactional travel purchasing system. I have deep experience in implementing highly complex business logic, for example, complex sets of underwriting rules, workflow applications involving legal chains of custody, complex data validation rules and statistical programming including regression model development and data visualization. I am a veteran financial services system developer and architect. I was with Accenture in the financial services consulting group, and built numerous systems in finance, banking, and insurance. I worked on systems for JP Morgan, State Farm Insurance, American General Group, and many other financial service firms. I have developed iPhone applications and designed and built a iPhone mobile ecommerce system for a startup similar to Uber. I know CSS3 and have implemented highly detailed pixel perfect user interfaces.

Java
Amazon RDS
Amazon EC2
Google Cloud Platform
jQuery
AngularJS
Aurelia
Vue.js
JavaScript
React
$45 hourly
Jose Pedro M.
- 5.0/5
- (11 jobs)
Hi! I am a Full-Stack developer with experience in building and maintaining web applications. I specialized in web and databases my main main coding language is C#. My knowledge are: - C# - TypeScript - javaScript - Angular - java - POSTGRESQL -NOSQL - SQL - SQL SERVER - ASP.NET - ASP.NET MVC - ASP.NET Web API's - AWS Please if you have any question don't hasitage in contact me, i will be glad to answer any question for you.

Java
Blazor
Microsoft SQL Server
API
Unit Testing
ASP.NET Web API
ASP.NET MVC
C#
ASP.NET Core
JavaScript
HTML5
CSS
SQL
Angular
TypeScript
$70 hourly
Blake M.
- 4.6/5
- (2 jobs)
I am an experienced Linux system administrator and graduate of The University of Tulsa, with a bachelor's degree in Computer Science, with minors in Cyber Security and Mathematics. I am proficient in: • Web App Development (PHP, JS, CSS, HTML, jQuery) • Python Scripting • Network Administration • System Administration

Java
Firewall
Web Application
PHP
Network Engineering
Computing & Networking
Database
System Security
Microsoft Active Directory
Linux
Python
System Administration
$67 hourly
Bryan S.
- 5.0/5
- (5 jobs)
Linux Administration Cloud Solutions Architecture Configuration Management Monitoring Solutions Infrastructure as Code (IAC) Continuous Integration Continuous Delivery Containerization I've engineered, architected, and operated systems and clusters with technologies ranging from keepalived for HA configurations to kubernetes clusters with autoscaling. for ensured service reliability. These days, you're generally going to want a solution in the cloud or utilizing a service, but I can also assist with projects that require moving older software's into this decades technologies.

Java
Linux
DevOps
Google Cloud Platform
Terraform
Website
Python
PHP
Ansible
WordPress
Jenkins
Docker
Amazon Web Services
Perl
Kubernetes
$34 hourly
Christian D.
- 5.0/5
- (15 jobs)
I work full time at a large security consultancy. I can work part time on any security/development projects. Fast learner and many different skill sets gained over the past few years.

Java
JavaScript
C#
Application Security
Ethical Hacking
Penetration Testing
C
Python
PHP
Network Security
Kali Linux
HTML
Security Engineering
SQL
Web App Penetration Testing
Node.js
$65 hourly
Anthony V.
- 0.0/5
- (2 jobs)
I'm a driven Software Engineer always pushing to learn and grow. My experience consists of: 1. Java - Spring MVC / Spring Boot 2. SQL - Emphasis on writing custom query requests and updating frequently used queries 3. Python - pandas / NumPy / Seaborn / MatPlotLib 4. Visual Basic for Applications

Java
Visual Basic
Data Analysis
Automation
SQL Programming
NumPy
pandas
Visual Basic for Applications
Database
jQuery
Spring MVC
Spring Boot
Matplotlib
SQL
Python
$95 hourly
Tyler G.
- 0.0/5
- (5 jobs)
As a current student at the University of Central Oklahoma , I have developed a strong foundation in programming and a passion for building innovative projects. Throughout my academic career, I have honed my skills in various programming languages, including Java, Python, and C++. In addition to my academic pursuits, I have gained practical experience through personal projects and internships. I have worked on various programming projects, including developing mobile applications and creating websites. These experiences have not only enhanced my technical skills but also taught me how to work collaboratively in a team setting.

Java
Web Development
Prompt Engineering
Python
$50 hourly
Dakota P.
- 5.0/5
- (2 jobs)
Mechanical Engineer | Lean Six Sigma Green Belt (LSSGB) | SolidWorks, Matlab, ANSYS | C++, Python | Microsoft Office, Google Workspace As a Mechanical Engineer, several different projects were completed at the University of Central Oklahoma. 4 years of experience with Computer-Aided Design (CAD) like SolidWorks, AutoCAD and 3D Printing software while focusing on Mechanical Systems and Problem Solving. 1-2 years of Python (Programming Language), C (Programming Language), and C++ while focusing on Data Analysis. 3 published research articles related to Heat Transfer and Internet of Things (IoT). 5+ years of Google Workspace and Microsoft Office. Awarded 2021-2022 Outstanding Graduating Mechanical Engineering Major from the Department of Engineering and Physics at the University of Central Oklahoma.

Java
Quality Control
Quality Assurance
New Product Innovation
SAP
C++
Python
Geometric Dimensioning & Tolerancing
Printable 3D Models
Engineering Design
Engineering Modeling Software
Microsoft Word
Microsoft Excel
3D Modeling
SolidWorks
$20 hourly
Hatice Z.
- 5.0/5
- (1 job)
I am software QA automation and manual tester who can create an automation framework from scratch. For UI testing I use tools like Selenium, TestNG, Cucumber, and JUnit to create test automation frameworks. For manual tests, I use Jira-Xray. For manual API testing I use Postman and automation I use RestAssured.

Java
Automation Framework
Manual Testing
RESTful API
Quality Assurance
QA Automation
JUnit
Cucumber
TestNG
Selenium WebDriver
Postman
$25 hourly
Chris S.
- 5.0/5
- (1 job)
I am an English and Computer Science double major. I’m looking for work that piques my interest, especially anything that can blend the two disciplines. I work well in a team and can coordinate with my peers.

Java
Unix
Creative Writing
Essay Writing
Writing Critique
Writing
Bash Programming
Microsoft Office
GitHub
Software
Linux
Swift
Eclipse IDE
C
C++
$47 hourly
William Steve M.
- 4.2/5
- (1 job)
I deliver high-quality, fault tolerant software that scales easily as your business grows. My approach is simple. Design, Build, Test & Iterate. A High-quality Software is simple to use, design and maintain - it just requires discipline and steadfast attention to detail on every step of the way. What's stopping you from fixing the pains of your business? You too can achieve Software Excellence. Get a FREE consultation with me today. I am William Mongou, an experienced software architect and engineering professional involved in all parts of the SDLC (Waterfall, Agile and Hybrid methodologies). I have acquired a lot of technical skills from working Global tech Giants like Amazon, and Local Software pioneers like INVYT mobile. In both cases, I have brought elegant solutions to complex problems faced by specific markets sectors. I will work with you (and your team) to continue to provide the best possible technical solution to your business problem. So far, my Software solutions have been used in Supply Chains, Health care, E-commerce and Teaching platforms. If your sector was not listed above, do not be alarmed. I am a proactive listener and a very fast learner. I will work harder at building you a perfect system than anyone else would. I will bring to bear a highly focused set of technical and people skills to help your project succeed. The recommendations and advice I provide focus on minimizing risks and maximizing your project's chances of success. Here is what to expect from me as an experienced Software Architect (5+ years experience) - Great communications. - Testable + Fault Tolerant + Highly Available Software. - FREE End-to-End Maintenance and Software Deployment (Limited Time ONLY) - Full Documentation, Feature Extension and Ramp-up training. When asked to build software, I deliver high-quality server-side C# .NET software solutions that give what you need: Software engineered to be robust, scalable, and designed to exceed your business expectations. What you'll get when you choose me to work with me: ⭐️ Clear, effective communication ⭐️ Precise, quality recommendations to ensure success for your project ⭐️ A focused, collaborative approach to work with you and your team ⭐️ A no-nonsense, results-focused approach that delivers value to your project For example, this are what a couple of my clients had to say: ❝William is by far the best architect I have ever worked with. He displays extreme ownership of his work and it's incredibly refined. Every deliverable was on time or ahead of time. Not only did William provide an incredibly performant and scalable architecture, the documentation he provided was top notch. We have kept William as our Software Consultant till today.❞ Lapah, CEO GLC Cameroon. If you are interested in working together, please invite me to your job on Upwork. I look forward to hearing from you soon. Best Regards, William. A highlight of my technical specialties I can help you with: ✅ .NET Technical and Solution architecture consultancy and design ✅ C#.NET ✅ Java, Scala. ✅ SQL ✅ Team leading, technical .NET mentoring, and coaching ✅ High availability solution designs (24/7/365) ✅ Event-driven architectures (including actor-based systems) ✅ Highly concurrent software design (thread-safe) ✅ High volume, low latency software designs ✅ Cloud (MS Azure and AWS) solutions ✅ Microservices ✅ SOLID, DDD, OOP, and TDD ✅ Experienced in Agile and Hybrid delivery models ✅ Container (Docker) deployments software using CI/CD (Azure Devops) ✅ Dependency Injection A highlight of the software products I'm experienced with: ✅ JetBrains Rider, Intellij, CLion IDEs ✅ Confluence, JIRA ✅ Git ✅ Resharper, DotMemory, DotTrace ✅ Visual Studio 2019 IDE

Java
Data Science
Data Structures
C++
Scala
Firebase
Flutter
Web Development
C#
Software Consultation
Software Debugging
Software Architecture & Design
Software
Cloud Computing
$111 hourly
Micheal N.
- 0.0/5
- (1 job)
I’m a software engineer with a proven track record of developing innovative solutions for complex problems. With expertise in full-stack development, data analytics, and machine learning, I can help bring your project from concept to completion with efficiency and precision. Whether you need a custom tool, data migration solution, or cutting-edge AR application, I’m here to make it happen. Skilled in Python, C#, Java, JavaScript, PHP, and SQL with extensive experience in building scalable web applications and APIs. Proficient in agile methodologies, including SAFe and Scrum, ensuring efficient and high-quality project delivery. Specialized in machine learning and Retrieval-Augmented Generation (RAG) systems, integrating advanced models for business-specific use cases. Experienced in developing interactive AR solutions using Unity and HoloLens 2, enhancing training and maintenance workflows. Proficient in database design and optimization, including cloud-based solutions for scalability and performance. I value clear communication and collaboration and am dedicated to delivering solutions that exceed expectations. Let’s discuss how I can contribute to your next project!

Java
Python
C#
JavaScript
Machine Learning
Web & Mobile Design Consultation
Desktop Application
Artificial Intelligence
$66 hourly
Nathan A.
- 0.0/5
- (0 jobs)
PROFESSIONAL SUMMARY Seasoned Java Developer with 5+ years of experience in creating professional lightning-fast web applications that are highly scalable and secure. A quick learner who can adapt to new technologies and frameworks with great enthusiasm and zeal. SKILLS SUMMARY * Expertise in Core Java concepts like OOP Design, Encapsulation, Inheritance, Polymorphism, and Abstraction * Expert in collections, multithreading, exception handling, streams API and functional interfaces. * Experience with developing well designed code that is clean and precise. * Experience in developing code that stresses on low memory utilization with fast execution time. * Developed web applications using Spring, Spring Boot, Spring MVD, Spring Cloud, Micronaut. * Experience in developing secure web applications using Spring Security with authentication technologies like Basic Authentication, JWT Token authentication, Oauth 2 authentication etc.

Java
AI Implementation
Script
API Development
Node.js
Python
Apache Kafka
Web Development
$25 hourly
Jeremy H.
- 5.0/5
- (3 jobs)
I have an associates degree in Computer Science where I studied Java, HTML, CSS and JavaScript. I have recently completed a MERN (JavaScript) full-stack Bootcamp. The languages I use include HTML, CSS, JavaScript, C#, Java, and Lua. I also create Low Poly models in Blender and work in Roblox/Unity occasionally. I have also completed some custom email templates made in HTML and CSS.

Java
CSV
3D Modeling
GIMP
Web Development
Game Development
CSS
Email Template Development
Blender
HTML
Roblox Studio
C#
JavaScript
Lua
$65 hourly
Nisan F.
- 3.4/5
- (20 jobs)
✅ Welcome ! I am a Full stack developer, that has developed Award winning projects with millions of active users from ground up for both web and mobile. I have developed amazing solutions for 🌟High Profile Clients/Large scale Organizations🌟 in my Career, including the following to illustrate some of them: ✅ Beats by Dr.Dre ✅ BBC ✅ CNN ✅ Viacom ✅ MyDiveo is acquired in $7.4M by (Top tier investor) Featured Award winning web and mobile app projects with millions of active users for start ups to Fortune 500 Companies. Extensive Experience as a Grounded Full Stack developer with 10 years of web development and 8 years of Native & cross platform iOS and android app development. Written complex projects from scratch and methodically identifying and resolving complex problems, using a vast variety of updated techniques and tools. I have push the limits and provided out of the box solution to all my clients for web and mobile app. Expert Level Full stack developer working on native mobile apps for Android and IOS (Ojective-c, Swift, RxSwift, RxJava, Java, Kotlin) as well as cross platform apps(Ionic, ReactNative, Angular, React.js). I am proficient in server side technologies (PHP, Node.js, Python, Ruby, Ruby on rails ROR mostly as well as APIs for apps. So I have loads of experience managing client side, server side and deployment on AWS, Digital ocean, Azure and Heroku. 🌟 WHY CHOOSE ME OVER OTHER FREELANCERS? 🌟 ✅ Client Reviews: I am focused on bringing benefit to all of my clients and earning their TRUST. The Client Reviews and Feedback on my Profile are monstrously critical to me and the value I provide. ✅ Over-Delivering: My focus is to give more than I expect. I invest wholeheartedly in leaving the entirety of my Clients saying "Amazing Job done" ✅ Responsiveness: I am very responsive and keep all lines of correspondence promptly open with my clients. ✅Versatility: Contact any one of my former clients for information about my resilience. Whenever my clients encounter a problem, I attack them and, discover an out of the box solution. ✅ Benevolence: Perhaps the best part of my life that I realize in each component of my life. Approaching everybody respectfully, seeing all conditions, and really needing to improve my Client's circumstances. 100% Job Success rate, 🏆Client Review🏆 underneath which you will find in my reviews section and various others like it, depicts the nature of work load and worth that you can expect from working with a gem like me: "Nisan exceeded our expectations. He recognized the urgency of our requests and attacked and solved our issues without hesitation and in far less time than we could have imagined! His skill level is well above par and we would be grateful to work with him again on our future projects."

Java
React Native
watchOS
Swift
API
Apple Watch Application
UX & UI
Business with 1000+ Employees
Laravel
Ruby
React
Amazon Web Services
Node.js
Kotlin
Web Application
$30 hourly
Damon P.
- 5.0/5
- (2 jobs)
I am a talented software developer who has written several desktop and mobile apps as well as websites. I have a versatile skill set suitable for businesses of any size and can assist with a wide variety of projects from data entry to web or application development. Very experienced in multiple programming and scripting languages such as Python and Javascript. Excellent communication skills and able to meet deadlines with ease.

Java
3D Modeling
Video Editing & Production
Audio Editing
Image Editing
Business Applications Development
Android App Development
App Development
Troubleshooting
IT Support
C#
JavaScript
Web Development
Python
HTML
$20 hourly
Blaine P.
- 0.0/5
- (0 jobs)
I am an entrepreneur experienced in managing a small online product-based business. I am currently expanding my horizons within software development and programming with the following languages: Python, Java, C#, Swift, JavaScript, HTML & CSS. • Knowledge and experience with e-commerce platforms such as Shopify. • Certification and knowledge of the programming languages Python and Java. • Ambitious, ready to learn.

Java
Python
Adobe Photoshop
Shopify
Entrepreneurship
Tech & IT
$20 hourly
Alexzander B.
- 0.0/5
- (0 jobs)
Software Developer I am a passionate developer with a love for logic and complex problem-solving. Well-versed in Java, C#, and backend development. Recently transitioned to hands-on customer-facing roles, leveraging excellent communication skills and a strong work ethic. Always eager to learn and adapt, with experience in both software development and practical hardware knowledge.

Java
International Development
Game
Game Design
Desktop Application Improvement
Desktop Application Bug Fix
Desktop Application
Web Application
TypeScript
JavaScript
Python
C#
C++
Spring Framework
Spring Boot
$22 hourly
Jadiel R.
- 0.0/5
- (0 jobs)
Computer Science Graduate A focused and passionate worker who is committed to personal growth and success at my job. A driven individual with a desire to use analytical and problem-solving skills to meet goals. Experienced in collaborating effectively within teams to achieve project milestones and deliver high-quality results.

Java
Haskell
Hardware Troubleshooting
Troubleshooting
Data Analysis
C#
TypeScript
Python
Scripting
Artificial Intelligence
$30 hourly
Roy S.
- 0.0/5
- (1 job)
+21 Years of experience overall in IT industry, +11 years of experience in Software development (SDLC) environments, +6 years of experience as a Scrum Master, Solid management in Manual and Automated testing with Agile/ Waterfall Methodologies using JIRA Atlassian tools with best practices. Planning/ Designing/ Creating Reports/ Creating and Managing Test documentation such as stories, test plans, test cases, test matrices, etc.. Experience working closely with Product Owners/ Business peoples to satisfy their needs with Under Budget and timeline. Agile Scrum Master Medtronic plc - Boulder, CO February 2017 to August 2023 Acted as a scrum master, leading the delivery of all sprints and interaction with the product Owners. Monitor and track progress, prepare status reports, resolve issues, coordinate tasks and activities directed toward completing the project goals. Closely worked with product overs to ensure understanding of user stories and keeping the backlog groomed. Facilitated and participated in Sprint planning, design and estimation. Monitored the Sprint Burn-down and conducted daily stand up, encouraging open Communication in the team. Facilitated the tear to estimate story points and measured the velocity to plan future sprints. Facilitated sprint planning, retrospective, and sprint demos. Ensured user stories were 100% ordered, defined, and ready to be worked on by the team. Establishing and maintaining thorough and accurate documentation of all work communicating technical issues assisting with technical specification documentation and review. Performing technical work by applying software development methodologies to complete assignments. Ability to self-motivate with a strong desire to learn and ability to be flexible. Software QA Engineer Allstate Corporation - Township of Northfield, IL November 2012 to February 2017 Perform software testing on products and provide feedback to software development teams. Implementing, unit testing, debugging and integrating code of assigned projects performing preliminary tests to verify the functionality, accuracy, and efficiency of developed or enhanced software. Executed the test process, analyzed system requirements specifications and developed appropriate test plans and test cases. Executed test cases and verified actual results with expected results. Run functional, nonfunctional and usability testing. Used Agile methods for complex problem-solving and solution strategies. Prepared the test data to validate the scenarios according to business requirements, developed and tested negative and positive test cases. Filtered test cases for the automation testing, wrote automation scripts using Java Selenium Web- driver. IT Support Specialist MAS HOLDINGS (PVT) LTD - Battaramulla, Sri Lanka May 2001 to July 2012 Maintained and updated filing systems to ensure that accurate information was provided to all areas of the website. Installed, update, configured, and monitored the booking and accounts system. Provided administrative and technical support to various department managers. Provided prompt solutions and proactive troubleshooting support to swiftly resolve subtle and complex issues as the Team Lead of the software engineering team. Strong abstract reasoning skills with an ability to focus on key concepts at all levels of detail. Strong teamwork and communication skills, both written and oral in a highly collaborative environment. Skills: Software Development/ Software Troubleshooting/ Agile/ TestNG/ Selenium/ Eclipse IDE/ Maven Apache/ Katalon Studio/ Web Application Testing/ JIRA Atlassian/ Salesforce Admin/ Mobile Application Testing/ Windows/ MacOS/ JAVA/ Scrum/ Test Cases/ SDLC/ Git B.S in Computer Science University of Jaffna - Sri Lanka September 1997 to April 2001 Certifications and Licenses Certified Salesforce Administrator May 2020 to Present Certified Scrum Master December 2021 to December 2023 ----------------------------------------------------------------------------- My hobby is Music, I enjoy doing it for my self and for others who love music. I’m a professional artist and a musician by doing music engineering/ composing & producing. I will do audio Mixing/Mastering with industry standards for your sounds. I am a sound engineer who has over more than 21 years of experience in the music industry. Mixing & Mastering has been like an intricate crossword puzzle. Every track I have many challenges to figure out. My highly responsible is to provide everyone a world class professional service from my Audio Engineering final touch.

Java
Eclipse IDE
Web Testing
Agile Project Management
Agile Software Development
Scrum
Test Automation Framework
Manual Testing
TestNG
Apache Maven
Selenium
Jira
Secure SDLC
Software Testing
Mobile App Testing
$15 hourly
Sahil P.
- 0.0/5
- (0 jobs)
I'm a computer science student who builds clean, responsive websites and solves coding problems efficiently. Whether you need a landing page, bug fix, or feature added, I deliver fast and affordable results.

Java
Git
Front-End Development
Python
C#
Unity
$10 hourly
Gerardo L.
- 0.0/5
- (0 jobs)
SUMMARY Hardworking, initiative-taking student eager to lend combined knowledge and skills to enhance business performance. Operates well in both individual and team capacities, leveraging seasoned work ethic to quickly adapt to different processes and drive company objectives. Resourceful and purposeful with a passion for growth and efficiency to meet company needs and increase service value.

Java
Microsoft Office
SQL
Wondershare Filmora
C
C#
C++
Computer Science
Unity
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