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Hello, I’m a Senior Full Stack Engineer with 10+ years of experience building and scaling high-performance, cloud-native applications across fintech, healthcare, and e-commerce. I specialize in designing distributed systems and microservices on AWS, with strong expertise in React, Node.js, Python, and modern backend architectures. I’ve led teams, mentored engineers, and driven large-scale transformations—from monoliths to scalable, event-driven systems. In my recent roles, I’ve built global payment platforms, real-time fraud detection systems, and high-traffic analytics pipelines—focusing on performance, security, and cost efficiency. What sets me apart is my ability to combine deep backend system design with strong frontend execution, while also delivering measurable business impact like reducing costs, improving performance, and accelerating delivery speed.…Hello, I’m a Senior Full Stack Engineer with 10+ years of experience building and scaling high-performance, cloud-native applications across fintech, healthcare, and e-commerce. I specialize in designing distributed systems and microservices on AWS, with strong expertise in React, Node.js, Python, and modern backend architectures. I’ve led teams, mentored engineers, and driven large-scale transformations—from monoliths to scalable, event-driven systems. In my recent roles, I’ve built global payment platforms, real-time fraud detection systems, and high-traffic analytics pipelines—focusing on performance, security, and cost efficiency. What sets me apart is my ability to combine deep backend system design with strong frontend execution, while also delivering measurable business impact like reducing costs, improving performance, and accelerating delivery speed.

Eric John Graham

Full Stack Developer, Web Developer, Back-End Developer, +3

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Hello, I’m a Senior Full Stack Engineer with 10+ years of experience building and scaling high-performance, cloud-native applications across fintech, healthcare, and e-commerce. I specialize in designing distributed systems and microservices on AWS, with strong expertise in React, Node.js, Python, and modern backend architectures. I’ve led teams, mentored engineers, and driven large-scale transformations—from monoliths to scalable, event-driven systems. In my recent roles, I’ve built global payment platforms, real-time fraud detection systems, and high-traffic analytics pipelines—focusing on performance, security, and cost efficiency. What sets me apart is my ability to combine deep backend system design with strong frontend execution, while also delivering measurable business impact like reducing costs, improving performance, and accelerating delivery speed.…Hello, I’m a Senior Full Stack Engineer with 10+ years of experience building and scaling high-performance, cloud-native applications across fintech, healthcare, and e-commerce. I specialize in designing distributed systems and microservices on AWS, with strong expertise in React, Node.js, Python, and modern backend architectures. I’ve led teams, mentored engineers, and driven large-scale transformations—from monoliths to scalable, event-driven systems. In my recent roles, I’ve built global payment platforms, real-time fraud detection systems, and high-traffic analytics pipelines—focusing on performance, security, and cost efficiency. What sets me apart is my ability to combine deep backend system design with strong frontend execution, while also delivering measurable business impact like reducing costs, improving performance, and accelerating delivery speed.

Available to hire

Hello, I’m a Senior Full Stack Engineer with 10+ years of experience building and scaling high-performance, cloud-native applications across fintech, healthcare, and e-commerce.

I specialize in designing distributed systems and microservices on AWS, with strong expertise in React, Node.js, Python, and modern backend architectures. I’ve led teams, mentored engineers, and driven large-scale transformations—from monoliths to scalable, event-driven systems.

In my recent roles, I’ve built global payment platforms, real-time fraud detection systems, and high-traffic analytics pipelines—focusing on performance, security, and cost efficiency.

What sets me apart is my ability to combine deep backend system design with strong frontend execution, while also delivering measurable business impact like reducing costs, improving performance, and accelerating delivery speed.

Skills

Experience Level

Expert

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Language

Javanese

Advanced

Aragonese

Advanced

Work Experience

Senior Software Engineer at Andela

May 1, 2024 - March 2, 2026

Led a cross-functional team of 8 engineers in migrating a monolithic app to microservices on AWS (Lambda, API Gateway, DynamoDB). Achieved 60% downtime reduction, 40% AWS cost savings, and 50% improved scalability. Implemented real-time fraud detection pipelines with Kafka, Redis, and ML models; enforced OAuth 2.0/JWT, RBAC, and GDPR/PCI-DSS compliance. Added a GraphQL API layer to let frontend fetch only needed data, cutting data transfer by ~30% and boosting developer productivity. Established CI/CD pipelines and monitoring (CloudWatch, X-Ray) to support 1M+ transactions/day while maintaining low latency. Mentored junior engineers and led weekly code reviews.

Software Engineer at TekStream Solutions

September 1, 2022 - April 1, 2024

Built a real-time analytics platform for healthcare and fintech clients, delivering high-performance data ingestion and processing with API development and cloud-native architecture on AWS. Implemented GraphQL/REST APIs, integrated secure healthcare data flows, and improved processing latency. Applied CI/CD and automated testing to enable rapid deployments and reliable releases.

Full Stack Web Developer at Steneral Consulting

May 1, 2020 - September 1, 2022

Developed full-stack web applications handling high-volume transactional workloads. Implemented frontend/back-end components using React/Next.js, Node.js, and PostgreSQL; deployed scalable services on AWS with Docker and CI/CD pipelines. Contributed to microservices migration and performance optimizations, improving load times and reliability.

Full Stack Web Developer at LeetCode

February 1, 2017 - April 1, 2020

Led development of scalable full-stack applications for millions of users, focusing on robust REST/GraphQL APIs, responsive front-end interfaces, and data modeling with PostgreSQL and Redis. Implemented automated tests and continuous delivery pipelines to accelerate feature releases.

Senior Software Engineer at TekStream Solutions

September 1, 2022 - April 30, 2024

Built a high-performance analytics platform for health care and fintech clients with real-time dashboards and API integrations; implemented HIPAA-aligned data workflows, third-party health APIs, and secure authentication; improved system reliability via containerization, CI/CD, and scalable API gateways.

Full Stack Developer at Steneral Consulting

May 1, 2020 - September 2, 2022

Led high-volume transaction applications and designed microservices using React, Next.js, and AWS services; implemented security, performance optimizations, and CI/CD; achieved cost savings through optimized resource usage and scalable deployment strategies.

Full Stack Developer at LeetCode

February 1, 2017 - April 30, 2020

Designed and developed full-stack applications for millions of users, building RESTful APIs and robust front-end experiences; deployed on cloud infrastructure with Node.js and React, enabling reliable real-time data processing and scalable performance.