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Obaloluwa Olusoji: SoftwareEngineer

Hi, I’m Obaloluwa Olusoji. I specialize in fullstack engineering (Next.js and Node), and I am currently exploring distributed systems and database internals.

My Tech Stack

Languages
  • TypeScript
  • Rust
  • Solidity
  • Cairo
  • Noir
Frontend
  • Next.js
  • React
  • Tailwind CSS
  • Motion
  • Vercel AI SDK
Backend
  • Node.js
  • PostgreSQL
  • Express
  • Supabase
  • MongoDB
  • GraphQL
  • Sentry
Web3
  • Ethers.js
  • Foundry

What I do

Product engineering

I take products from rough idea to running in production—shaping the system architecture, designing the APIs, and building the interfaces and AI workflows on top of them.

  • Full-Stack Architecture
  • API Design
  • AI Workflows
  • Performance
See the work

Systems & infrastructure

Underneath the user interface, I design and build the core services that have to stay fast under load and recover when parts fail—working across distributed systems, storage engines, network protocols, and concurrent workloads.

  • Distributed Systems
  • Database Internals
  • Networking
  • Concurrency
See the work

Research & writing

I break down complex topics in applied cryptography, zero-knowledge proofs, and systems engineering into clear, approachable essays—turning dense math and specifications into working code and practical intuition.

  • Zero-Knowledge Proofs
  • Applied Cryptography
  • Protocol Design
  • Technical Writing
Read the articles

Experience

  1. Software Engineer

    Zynta

    Mar 2025 – Oct 2026

    Cross-border stablecoin and fiat payments platform processing $1B+ in volume. Remote.

    • Led development across the customer, enterprise, and admin web platforms—including instant virtual IBAN issuance—for a payment network handling over $1B in volume.
    • Engineered the core swap and transfer flows across on-chain and banking rails, building fault-tolerant recovery paths that kept financial discrepancies at zero and transaction reliability above 98%.
    • Monitored production errors across the frontend and backend with Sentry, tracing issues to their root cause and shipping the fixes.
    • Shipped an interactive in-app AI assistant that guides users through complex workflows and renders dynamic UI steps directly in chat, reducing customer support tickets by over 40%.
    • Architected an audit-grade, double-entry ledger to track every fiat and crypto deposit, swap, and withdrawal as a single source of truth across the platform.
    • Configured streaming database replication and read-replica routing to strengthen data durability and cut primary database load by 70%.

  2. Blockchain Developer & Tutor

    Web3Bridge

    Aug 2024 – Present

    Developer accelerator and Web3 engineering community. Lagos, Nigeria.

    • Mentor cohorts of 30+ engineers weekly on blockchain architecture, applied cryptography, and zero-knowledge proofs.
    • Architected and shipped smart contracts, cross-chain bridges, and web applications across DeFi, commodity trading, and event ticketing products.

  3. Full-Stack Developer

    Cesel

    Apr 2024 – Aug 2024

    Product studio and software consultancy. Akure, Nigeria.

    • Owned the end-to-end web platform, customer dashboards, and backend APIs for Irrigo, taking the product from initial concept to launch.
    • Standardized shared UI and backend modules across internal projects, cutting feature delivery time for new builds by over 30%.

  4. Frontend Developer

    Schoolable

    Nov 2023 – Jun 2024

    Financial and operational platform for schools and businesses. Remote.

    • Built core payroll and inventory management workflows that helped businesses automate recurring payouts and stock tracking.
    • Unified data flows and API integrations across 3 internal applications, so operations teams worked from one set of data.

Selected work

View all on GitHub

Product engineering

Systems & infrastructure

Articles

All articles

Deep dives into zero-knowledge proofs, applied cryptography, and systems engineering—breaking down how things work under the hood from first principles.

Ready to work together?

Whether you need someone to own product features end to end or design the backend systems that power them, I’d love to chat. Open to new roles and select projects.

Start a conversation

LinkedIn GitHub Medium X Resume (PDF)