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I am a versatile Lead Software Engineer with over 10+ years of experience in developing high-performance, scalable, and secure software solutions. My expertise spans across multiple programming languages, including Java, Golang, Python, and JavaScript/TypeScript, allowing me to tackle diverse projects and deliver exceptional results. Throughout my career, I have successfully architected and developed numerous applications, leveraging cutting-edge technologies such as Spring Boot, Django, Gin, ReactJS, gRPC, and Apache Kafka. I have a deep understanding of microservices architecture, RESTful APIs, and event-driven systems, enabling me to design efficient and maintainable software solutions. As a cloud and DevOps expert, I have extensive experience working with AWS and GCP, utilizing services like EC2, Lambda, S3, and AppEngine to build highly available and scalable infrastructures. I am proficient in containerization technologies like Docker and have hands-on experience with CI/CD pipelines, using tools such as Jenkins, Ansible, and Git. Key Strengths: ✅ Architecting and developing microservices using Java, Spring Boot, and Spring Cloud ✅ Building high-performance applications using Golang and Python ✅ Developing interactive front-end applications with ReactJS and JavaScript/TypeScript ✅ Designing and implementing RESTful APIs, utilizing tools like Swagger and OpenAPI ✅ Integrating message queues and streaming platforms like Apache Kafka and RabbitMQ ✅ Implementing secure authentication and authorization using Spring Security, OAuth2, and JWT ✅ Leveraging AWS and GCP for cloud-based deployments and infrastructure management ✅ Implementing CI/CD pipelines and automating deployments with Docker, Jenkins, and Ansible I have a proven track record of leading and mentoring teams, ensuring the delivery of high-quality software solutions. My strong problem-solving skills, coupled with my ability to effectively communicate with both technical and non-technical stakeholders, allow me to drive projects to success. In addition to my professional experience, I have continuously invested in expanding my knowledge and staying up-to-date with the latest industry trends. I have successfully completed several Udacity Nanodegree programs, including: ✅ Intermediate Python Nanodegree (Mar. 2024) ✅ C++ Nanodegree (Feb. 2024) ✅ Golang Nanodegree (Feb. 2024) ✅ React Nanodegree (May 2022) ✅ Intermediate JavaScript Nanodegree (May 2022) ✅ Cloud DevOps Engineer Nanodegree (Oct. 2021) ✅ Full Stack JavaScript Developer Nanodegree (Sep. 2021) ✅ Data Streaming Nanodegree (Jul. 2021) ✅ AWS Cloud Architect Nanodegree (Jul. 2021) These Nanodegree programs have equipped me with advanced skills in Python, C++, Golang, React, JavaScript, Cloud DevOps, Full Stack Development, Data Streaming, and AWS Cloud Architecture. By constantly updating my knowledge and skill set, I ensure that I can deliver cutting-edge solutions and adapt to the ever-evolving technology landscape. If you are looking for a skilled Lead Software Engineer who can bring a wealth of experience, expertise, and a commitment to continuous learning to your projects, I am confident that my skills and knowledge make me an ideal candidate. I am excited about the opportunity to contribute to your organization's success and deliver innovative software solutions that drive business growth and exceed expectations.

🌟 Expert-Vetted Talent - Recognized in Upwork's top 1% of Talent ✅ Established Track Record of Hours and Earnings 🚀 Fastest Response Times 💯 100% Job Success Awarded by Clients 🔝 Top Rated Plus by Upwork, Freelancer and Agency 🔎 Searching for New Opportunities and Problems to Solve Hello and welcome, thank you for considering me for your project. My Upwork profile’s stats clearly demonstrate both my expertise and the value I add to every team that brings me on. The thousands of hours clocked on this platform alone speak to my years of experience in Software Development, and the total earnings shows a glimpse of how valuable that time has been for clients. I am available and ready to answer specific questions about your project’s current problem, next opportunity, or my fit for it. Shall we get to work? Send a message or an invite now and I will be right with you. 𝐖𝐡𝐲 𝗖𝗹𝗶𝗲𝗻𝘁’𝘀 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞: 1. 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗮𝗻𝗱 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: Decades of experience bring a deep understanding of various languages, frameworks, platforms and tools, common and uncommon pitfalls, and alternative solutions. 🗯️ “He was very responsive to our messages and explained what was needed in our project clearly. He is definitely an expert in his work.” 2. 𝗘𝗳𝗳𝗲𝗰𝘁𝗶𝘃𝗲 𝗣𝗿𝗼𝗯𝗹𝗲𝗺 𝗦𝗼𝗹𝘃𝗶𝗻𝗴: I have a proven track record and knack for solving complex problems and providing customized solutions for specific business needs and challenges. 💭 “Isaac was able to quickly discern what I needed and delivered…” 3. 𝗦𝘆𝘀𝘁𝗲𝗺 𝗩𝗶𝗲𝘄 𝗮𝗻𝗱 𝗖𝗼𝗺𝗽𝗿𝗲𝗵𝗲𝗻𝘀𝗶𝗼𝗻: Years of experience and diverse projects have helped me accumulate a broad set of skills and tools. I use this experience to the advantage of my client’s projects in not only accomplishing tasks, but in advising and consulting on potential challenges and opportunities. 💬 “LIFE SAVER!!! I have now use(d) Issac for two separate jobs now and will be bringing him on for some regular hours. Hopefully we get some funding and I can do even more with him. GREAT DEVELOPER” 𝐌𝐲 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: Python|Django|PHP | MySQL | Laravel | WordPress | CodeIgniter | ExpressionEngine | CSS | HTML | JavaScript | Express.js | React.js | Bootstrap | PostgreSQL | NoSQL | Linux | Apache | Nginx | API | Git | SVN | Amazon Web Services | AWS EC2 | 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝗜 𝐎𝐟𝐟𝐞𝐫: 𝐅𝐫𝐨𝐧𝐭 𝐚𝐧𝐝 𝐁𝐚𝐜𝐤-𝐄𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Planning, Design, Documentation, Coding, Testing, Debugging, Deployment, Monitoring, and Maintenance. 𝐒𝐲𝐬𝐭𝐞𝐦 𝐀𝐝𝐦𝐢𝐧𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Cloud infrastructure Design, Deployment, Optimization, Maintenance, Scaling, Recovery and Backup, Troubleshooting, and Cost Management. 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 Management: Architecting, Optimization, Monitoring, Recovery, Updating, and Merging. 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Planning, Project Requirements, Task Detailing, Developer Support and Feedback, Problem Resolution, Progress Monitoring, Qualification Testing, and Stakeholder Communication.

Senior Software Engineer with 14+ years of experience designing, building, and scaling production systems end-to-end from backend APIs and databases to modern frontend interfaces, cloud infrastructure, and now AI-powered automation. I specialize in building robust, event-driven, and API-first applications using Python (Django, Django REST Framework, FastAPI), Node.js, and Go/.NET for teams that need reliable cross-stack solutions rather than narrow point fixes. On the frontend, I work comfortably with React, JavaScript/TypeScript, and modern component-driven architectures to deliver complete, production-ready products. My infrastructure background spans AWS (EKS/Kubernetes, Lambda, S3), Docker, CI/CD pipelines, and Kafka-based event streaming, allowing me to design systems that scale from prototype to enterprise volume - including high-throughput data pipelines processing millions of records for advertising, healthcare, and e-commerce platforms. Over the past two years I've expanded into AI-driven engineering - integrating LLMs (OpenAI/Anthropic APIs), building AI agents, and embedding intelligent automation into existing backend systems - as well as business process automation using n8n, Zapier, Make (Integromat), and Microsoft Power Automate/Microsoft 365 automation to help teams eliminate manual work and connect disparate SaaS tools without heavy engineering overhead. Whether you need a fullstack web application built from scratch, a legacy system modernized and moved to the cloud, or AI/automation layered onto an existing product, I bring the versatility to own the project end-to-end. Core Skills: - Backend: Python (Django, DRF, FastAPI), Node.js, Go, .NET/C# - Frontend: React, JavaScript/TypeScript, HTML/CSS - Cloud & DevOps: AWS (EKS, Lambda, S3, RDS), Kubernetes, Docker, CI/CD - Data & Messaging: Kafka, Celery, PostgreSQL, MongoDB, Pandas - AI/LLM: OpenAI/Anthropic API integration, RAG pipelines, AI agent workflows - Automation: n8n, Zapier, Make, Microsoft Power Automate/365 automation - Architecture: Microservices, event-driven systems, REST/GraphQL APIs

Senior Java Developer with 10+ years of experience delivering, supporting, and enhancing complex, high-availability systems for Fortune 500 organizations. My core experience is Java (up to Java 17), Spring, and Spring Boot, with strong hands-on experience in modern DevOps practices, including Docker, CI/CD pipelines, and cloud platforms such as AWS. I’ve worked across the full software development lifecycle — from system design to implementation. Along with the back-end, I also have experience working on front-end technologies such as the Angular framework and TypeScript/JavaScript. I communicate clearly and have worked closely with product owners, business stakeholders, and cross-functional teams (Test/QA, DevOps, Production Support), including remote and distributed teams, to deliver reliable production systems. In addition, I bring deep domain experience in energy and financial trading platforms, including OpenLink Endur, Sungard (FIS) Nucleus, Sungard (FIS) Entegrate, TradeWeb, MarketAxess, Murex, Bloomberg Terminal, and the FIX Protocol. Front End JEE: HTML, CSS, Servlets, JSP, JavaScript, JQuery, TypeScript, Angular Back End JEE: Java, JDBC, JPA, Hibernate, Spring Data, EJB JEE Web Services: REST, SOAP, JSON, XML, OpenAPI, Swagger, GraphQL JEE Frameworks: Spring, Spring Boot, Spring MVC, Struts MVC JEE IDE/Build/Test: STS, Eclipse, Ant, Maven, Gradle, JUnit, Mockito, TDD Version Control: Git, GitHub, SVN, CVS Database: MySQL, Oracle, Sybase, SQL, PL/SQL, SQL Server DevOps: CI/CD, Travis CI, Jenkins, Docker, Kubernetes, Terraform AWS Cloud: EC2, IAM, S3, Lambda, CodeBuild, SDK v2, AppSync, ECS, EKS Microservices: Spring Cloud, Netflix Eureka, OpenFeign, DDD, Saga, Zipkin Messaging: Kafka, RabbitMQ, ActiveMQ Security: Spring Security, OAuth2, JWT, OpenID Connect, Keycloak AI Assistants: GitHub CoPilot, Claude, ChatGPT, Cursor, Gemini

A short bit about myself. Software development ALONG with network and database design/development, network & systems engineering, and network, systems, and program administration. The development over the years comprised of backend creation, maintenance, and using/developing APIs; mostly for device setup/administration/and monitoring (with many things connected to networks *and* OS; CORE language being PERL). ALSO about 30-35% involved interacting with backend to do UI presentation mostly in web; but *some* mobile. Much of this was also considered as lead positions, with varying responsibilities, including project management, training, documentation, presentation and planning, and DevOps (Project Manager). I have worked in communications through the years starting with BBS's, to Bayou Internet, to Centurylink (Lucent) to AT&T. I have also worked with many in different facets of government (mostly concerning court and inmates), and private/corporate situations involving payroll, logistics, and medical. I do programming, network design, administration, and database engineering. The only reason I don't have any current certifications is economic.

I am a data engineer with extensive experience in automation, cloud, data pipeline, intelligence model, edge, mobile, and hardware IoT integration. I have particular expertise in sensor applications, smart cities, home automation, and telemetric IoT fleet management. Selected Technical Skills: Languages: Python, Typescript, SQL, node.js, C/C++, Java, Kotlin, Swift Data: Snowflake, DataBricks, Kinesis, Spark, PostgreSQL/PostGIS, MongoDB, Jupyter, R, QGIS Cloud: k8s, AWS, DigitalOcean, Terraform, Helm, Docker, RabbitMQ, SQS, Redis Edge: MQTT, LoRaWAN, EQMX Embedded: STM32, embedded Linux, Raspberry Pi, AVR, Modbus Physical: CAD, PCB design, 3D printing, ultrasound, chemistry