Looking for a job

Dike Obinna Ajah

@ekidhaja

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Senior Full-Stack Engineer at TraderApp, building crypto copy-trading systems processing 2,500 orders per minute.

Nigeria

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What I'm looking for

I’m open to remote Senior Engineer, Staff Engineer, CTO, and EM roles in fintech, SaaS, and trading.

At TraderApp, I started from a blank slate and built a live crypto and forex copy-trading platform, designing its AWS architecture and order execution system. It processes 2,500 orders per minute at about eight-second latency and has grown to 5,000+ users and $1M+ in connected trading capital.

At Turing, I led a team of five on a B2B SaaS platform serving 20+ enterprise organisations and 10,000+ business owners. I delivered platform systems including multi-tenancy, real-time chat, calendar sync, and integrations with HubSpot, Shopify, and Stripe.

Duplo contracted me as its sole engineer to build a B2B merchant payments platform from scratch, including CBN NIBSS bank verification and direct bank payouts. I’m open to Senior Engineer, Staff Engineer, CTO, and EM roles in fintech, SaaS, or trading, remotely.

Experience

Work history, roles, and key accomplishments

Current

Co-Founder & CTO

Current

TraderApp

May 2023 - Present (3 years 5 months)

Built a live crypto and forex copy-trading platform from a completely blank slate — sole technical decision-maker from stack selection to production deployment.

Designed cloud-native AWS architecture: EC2 eligibility engine, SQS-triggered Lambda execution, EventBridge workflows, PostgreSQL + MongoDB data layer

Built order execution engine processing 2,500 orders/minute at ~8-second end-to-end la

Senior Software Engineer / Tech Lead

Turing

Jul 2023 - Sep 2025 (2 years 2 months)

Led the Platforms Team of 5 engineers on a B2B SaaS platform serving 20+ enterprise organisations and 10,000+ business owners.

Appointed by CTO to own coordination of an outsourced Indian development agency — onboarding, architecture reviews, pair programming, weekly demos, full integration

Architected and delivered 10+ major platform systems: multi-tenancy/RBAC, notifications (Lambda/SQS/EventB

Senior Full-Stack Engineer

Duplo

Jan 2023 - Mar 2023 (2 months)

Sole engineer contracted to build Duplo's B2B merchant payments platform from scratch — delivered production-ready in 3 months.

React/TypeScript frontend from Figma, Node.js/TypeScript/MongoDB backend, REST API design end-to-end
Integrated CBN NIBSS APIs for real-time bank account verification

Built vendor invitation/verification flow, invoice auto-rendering, payment approval, and direct bank pa

Senior Software Engineer

PingApp (FKA GamicHQ)

May 2022 - Sep 2022 (4 months)

Built and shipped backend and frontend features for the Gamic Guild Managers platform.

Developed a serverless backend system using Node.js, TypeScript, AWS Lambda, MySQL, and WebSockets to handle real-time rewards, blockchain event tracking, and guild auto-deployments.

Implemented secure session management with short-lived access tokens and refresh token flows.

Built the frontend with React, Re

Tech Lead/Full-stack Developer

RMD Logistics Ltd

Jan 2019 - Oct 2021 (2 years 9 months)

Led a team of 4–6 engineers across e-commerce, government, and SaaS client engagements — directly contributing to a 30% company revenue increase.

Owned hiring, sprint planning, architecture design, and code reviews

Delivered a government tax-tracking system, scalable e-commerce platform (ALB + ASG + EC2 + RDS), and Lambda-based resume builder

Full Stack Developer

Freelance

Jul 2015 - Dec 2018 (3 years 5 months)

Built event-driven billing automation (Node.js, SQS, Lambda, CloudWatch) for a telecom CRM and a real-time Binance crypto signaling bot on AWS serverless — both delivered to production clients.