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Full-Stack Engineer with 7+ years shipping production web applications end to end: React/Next.js frontends, TypeScript/Node.js services, and event-driven serverless backends on AWS. Currently building a B2B analytics platform for institutional clients with real-time portfolio tracking, financial reporting, and scalable data processing pipelines. Strong focus on secure authentication and API design, payments and OAuth integrations, and resilient event-driven architectures. Experienced with testing across unit/integration/E2E layers, CI/CD that gates every merge, and autonomous delivery in remote distributed Agile teams.…Full-Stack Engineer with 7+ years shipping production web applications end to end: React/Next.js frontends, TypeScript/Node.js services, and event-driven serverless backends on AWS. Currently building a B2B analytics platform for institutional clients with real-time portfolio tracking, financial reporting, and scalable data processing pipelines. Strong focus on secure authentication and API design, payments and OAuth integrations, and resilient event-driven architectures. Experienced with testing across unit/integration/E2E layers, CI/CD that gates every merge, and autonomous delivery in remote distributed Agile teams.

Olumorin Samuel

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

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Full-Stack Engineer with 7+ years shipping production web applications end to end: React/Next.js frontends, TypeScript/Node.js services, and event-driven serverless backends on AWS. Currently building a B2B analytics platform for institutional clients with real-time portfolio tracking, financial reporting, and scalable data processing pipelines. Strong focus on secure authentication and API design, payments and OAuth integrations, and resilient event-driven architectures. Experienced with testing across unit/integration/E2E layers, CI/CD that gates every merge, and autonomous delivery in remote distributed Agile teams.…Full-Stack Engineer with 7+ years shipping production web applications end to end: React/Next.js frontends, TypeScript/Node.js services, and event-driven serverless backends on AWS. Currently building a B2B analytics platform for institutional clients with real-time portfolio tracking, financial reporting, and scalable data processing pipelines. Strong focus on secure authentication and API design, payments and OAuth integrations, and resilient event-driven architectures. Experienced with testing across unit/integration/E2E layers, CI/CD that gates every merge, and autonomous delivery in remote distributed Agile teams.

Available to hire

Full-Stack Engineer with 7+ years shipping production web applications end to end: React/Next.js frontends, TypeScript/Node.js services, and event-driven serverless backends on AWS. Currently building a B2B analytics platform for institutional clients with real-time portfolio tracking, financial reporting, and scalable data processing pipelines.

Strong focus on secure authentication and API design, payments and OAuth integrations, and resilient event-driven architectures. Experienced with testing across unit/integration/E2E layers, CI/CD that gates every merge, and autonomous delivery in remote distributed Agile teams.

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Work Experience

Senior Full-Stack Engineer at NFT Valuations

November 1, 2022 - Present

Built and shipped major product surfaces end to end: real-time NFT portfolio tracking with multi-wallet support, financial reporting (balance sheets, income statements, chart of accounts), and multi-chain Web3 wallet integration. Rebuilt the frontend on Next.js App Router with React and TypeScript strict mode, reducing bundle size (~70KB) using lazy-loaded charting/visualization libraries with skeleton placeholders. Architected an AWS serverless media processing pipeline (Lambda, Step Functions, SQS, EventBridge) with up to ~1,000 concurrent executions and VPC-isolated infrastructure-as-code. Designed a dual-database TypeORM layer with MySQL reader/writer separation and a dedicated metadata processing queue DB; implemented an event-driven achievements/reputation pipeline on Lambda and SQS with DLQs, retries, and idempotent writes. Implemented Stripe subscription billing end to end and integrated QuickBooks OAuth 2.0 and Coinbase Prime for automated accounting synchronization. Added sec

Full Stack Engineer at NFT Valuations, Cyprus

November 1, 2022 - Present

Led a platform rewrite to Next.js and React with TypeScript, improving initial page load by 40% and providing a maintainable frontend architecture. Built server-side APIs and business logic for billing, authentication, wallet connections, and third-party integrations using Node.js, Express, and TypeScript. Implemented Stripe checkout, billing portal, and webhooks; designed AWS-based, event-driven backend with Lambda, Step Functions, SQS, and EventBridge for high-volume processing across 6+ media formats. Delivered real-time admin tooling, auditing, and workflow controls to improve data quality and issue resolution speed. Automated CI/CD with GitHub Actions and Docker to improve release reliability across a remote cross-functional team.

Full-Stack Developer at Oozou

March 1, 2022 - October 1, 2022

Designed and shipped backend services and a collaborative wiki frontend featuring real-time editing, version history with diff visualization, and full-text search. Delivered REST APIs for document management and content indexing with conflict resolution and data integrity guarantees, supporting 50+ concurrent editors across time zones in Agile sprints.

Full Stack Developer at OOZOU, Bangkok

March 1, 2022 - October 1, 2022

Designed and shipped backend services for a collaborative wiki platform supporting real-time editing, version history, and full-text search. Built React.js screens and TypeScript-based features for content creation, editing, and knowledge sharing. Delivered REST APIs for document management and content indexing with conflict resolution and data integrity guarantees. Collaborated with product, design, and QA in a remote team to debug issues, refine requirements, and ship customer-facing improvements quickly.

Software Engineer at Decagon

January 1, 2021 - March 1, 2022

Owned backend and frontend delivery for a digital learning platform including user registration and course delivery, plus a React/Redux frontend. Shipped multi-gateway payment processing (Stripe, Paystack). Co-built a music streaming app with playlist management and personalized recommendations, scaling to 5,000+ active users. Shipped a GitHub Student Pack automation tool with OAuth (Microsoft Azure, GitHub).

Full Stack Engineer at Decagon, Lagos

January 1, 2021 - March 1, 2022

Led full-stack delivery for a digital learning platform, building React interfaces, backend services, and payment flows for onboarding, course access, and student progress. Coordinated with product, design, and QA to ship features on schedule and ensure quality.

Frontend Developer at Norak

January 1, 2019 - January 1, 2021

Engineered a ticketing system for IT project management and support tracking, reducing average case resolution time by 30%. Delivered a school admission portal with multi-step forms, validation, and status tracking. Standardized frontend documentation and component patterns to accelerate onboarding.

Backend Developer at Norak Technologies Limited, Lagos

January 1, 2019 - January 1, 2021

Owned backend development for an internal ticketing system to improve project tracking and team visibility across a high volume of requests. Built a school admissions portal with multi-step forms, validation, and status tracking; implemented authentication, authorization, data modeling, and integration with external services.