Amit K.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Looking for a Technical Lead who does not just draw architecture diagrams, but actively writes clean, high-performance code and solves complex backend bugs? I am an Associate Architect and Senior Technical Lead with 12+ years of hands-on experience building, scaling, and modernizing enterprise software platforms. I bridge the gap between high-level system design and execution—spending equal time architecting distributed systems and writing production Java microservices. Whether you need a Hands-On Tech Lead to guide an engineering team and drive architecture, or a Senior IC Developer to build critical pipelines, debug bottleneck services, and optimize cloud infrastructure, I deliver battle-tested code that scales. I also leverage modern AI-assisted workflows (GitHub Copilot, Claude, Spring AI) to accelerate prototyping and ship production-ready features significantly faster. How I Can Help Your Project Hands-On Backend Development: Writing clean, scalable Java (Java 8 to 21) code using Spring Boot 3.x, Play, and Akka System Architecture & Design: Designing microservices, event-driven systems (Kafka, SQS/SNS), RESTful APIs, and gRPC workflows. Legacy Modernization & Automation: Re-architecting legacy workflows (like Excel-based operations or old monolithic apps) into automated, cloud-native microservices. Fintech & E-Commerce Pipelines: Building high-throughput transaction processing, daily settlement syncs, order routing, and fraud detection services. Cloud & DevOps Execution: Deploying and managing services on AWS (EC2, Lambda, S3, SQS, EKS), Docker, Kubernetes, and CI/CD pipelines. Team Leadership & Quality Control: Setting up shared core libraries, conducting thorough code reviews, mentoring developers, and enforcing security (OAuth2, CheckMarx, Black Duck). Key Highlights & Proven Impact Enterprise Workflow Platform: Replaced complex manual planning processes with fully automated Spring Boot 3.x microservices, building shared Java 21 components that reduced cross-team boilerplate by 30%. High-Volume Financial Settlement: Built and maintained daily transaction sync pipelines handling critical payment settlement data between enterprise financial systems. Scale E-Commerce Microservices: Developed 12 core microservices for a major US e-commerce backend handling order routing, shipping verification, and real-time fraud scoring. Tech Stack Languages & Core: Java (8/11/17/21), Scala, SQL Frameworks & Libs: Spring Boot 2.x/3.x, Spring MVC, Spring Security, Spring AI, Play, Akka Architecture & Messaging: Microservices, Event-Driven, Apache Kafka, AWS SQS/SNS, gRPC, REST Cloud & DevOps: AWS (EC2, S3, Lambda, API Gateway, EKS), Docker, Kubernetes, Jenkins, Git Databases: PostgreSQL, MySQL, MongoDB, Cassandra Ready to start or scale your project? Click "Invite to Job" or "Message" to discuss how we can get to work.