Professional Experience

Current & Recent:

  • SAW Technologies Limited

    2025 to Present

    CEO & Lead Full-Stack Engineer · Ibadan, Nigeria

    Architect and build a NestJS monorepo powering Dbrij, Cirva, and Resikonet with PostgreSQL/Prisma, BullMQ job queues, and Socket.IO real-time layers.

    Implemented banking-grade security controls: AES-256-GCM field-level encryption for sensitive PII (BVN, NIN), JWT rotation, append-only audit logging, and idempotency keys on all money-movement endpoints.

    Integrated Nigerian financial rails end-to-end: SafeHaven MFB virtual accounts (NUBAN provisioning), Paystack direct-debit mandates, Sudo Africa card issuing, and Prembly/Termii KYC and messaging.

    Designed NDPA 2023-compliant data architecture: data minimization, retention policies, consent management, and DPIA documentation covering cross-border processors.

    Maintain thorough unit and integration test suites wired into GitHub Actions CI; document architecture decisions in lightweight RFCs.

  • Confidence MFB

    2025 to Present

    Backend Engineer (Contract) · Remote, Nigeria

    Build and maintain core banking backend services: customer, account, loan, and transaction management APIs on Node.js/NestJS and PostgreSQL.

    Implemented role-based access control, transaction audit trails, and reporting endpoints powering the bank’s internal admin dashboard (React/TypeScript).

    Hardened authentication and input-validation flows; run security-focused reviews on all code paths touching customer financial data.

  • Citizens’ Gavel

    Mar 2023 to Present

    Full-Stack Developer, PODUS Platform · Ibadan, Nigeria

    Full-stack lead on the PODUS legal-tech ecosystem (podus.org, chat.podus.ai, appointment.podus.ai): React/TypeScript web apps, React Native mobile, and NestJS + PostgreSQL backends.

    Shipped Podus AI, an AI legal assistant trained on Nigerian and UK law, across web, mobile, and WhatsApp; the platform has served 35,000+ users with 6,500+ legal interventions.

    Built Podus Checker (background investigation and compliance checks), appointment booking with integrated payments, and digital court-connected dispute-resolution flows.

    Delivered real-time features over WebSockets, Redis caching, and confidentiality-first handling of sensitive client and lawyer data.

  • Agrandi Technologies

    Jan 2024 to Oct 2025

    Engineering Team Lead · Remote, Canada

    Led development of a scalable microservices architecture using serverless Node.js and Next.js on AWS.

    Built and optimized high-throughput REST API endpoints; maintained PostgreSQL databases with a focus on query optimization.

    Owned the testing strategy, with unit and integration coverage goals enforced through CI checks, and introduced coding standards that measurably reduced regressions.

  • Jobfactor

    2024 to 2025

    Senior Full-Stack Engineer · Remote, Nigeria

    Built and maintained NestJS/PostgreSQL services and React/TypeScript web modules; contributed to mobile client integrations.

    Implemented GitHub Actions CI/CD, environment-based feature flags, and Datadog dashboards; introduced API contracts with automated schema checks to prevent breaking changes.

Earlier Roles:

  • Reusers

    2024 to 2025

    Full-Stack Engineer · Remote, Nigeria

    Delivered core re-commerce marketplace features (media uploads, messaging, payments) across React Native and React/TypeScript frontends with RESTful Node.js backends.

    Added secure auth, rate limiting, and S3-compatible object-storage flows; improved crash-free sessions and time-to-interactive through bundle optimization.

  • PlatformLead

    Oct 2022 to Feb 2023

    Full-Stack Developer · Ibadan, Nigeria

    Developed backend services with Node.js/Express, implemented automated component testing, and collaborated with UI/UX on intuitive interfaces.

  • Digprom

    Mar 2020 to Sep 2022

    Full-Stack Developer · Ilorin, Nigeria

    Implemented payment-gateway integrations, built responsive React/Next.js interfaces, maintained PostgreSQL databases, and authored comprehensive API documentation within agile sprints.

  • Independent Clients

    2017 to Feb 2020

    Freelance Full-Stack Developer · Nigeria

    Designed, built, and deployed web applications and REST APIs for small-business clients using PHP/Laravel, Node.js, and React, owning delivery end-to-end from requirements through hosting and maintenance.

    Built early native Android (Java) utilities and business apps for local clients, laying the mobile foundation later deepened with React Native and Flutter.

Education & Certifications

B.Sc. Computer Science, Federal University Oye-Ekiti (FUOYE), Nigeria

HackerRank SQL (Advanced): Verified

HackerRank REST API (Intermediate): Verified

HackerRank JavaScript (Intermediate): Verified

HackerRank Java (Basic): Verified

HackerRank Problem Solving (Basic): Verified

NDPC Data Controller/Processor Registration: In Progress (SAW Technologies Limited)

Looking for a senior engineer who has shipped through all of this?

© 2026 Olatunde Success. All rights reserved.

Built in Ibadan, Nigeria

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