Adekunle S. Omorotimi

experience

1. Software Engineer Lead · Sumeru Tech (formerly Age of AI)

   Jun 2025 – Present

   Marina Del Rey, CA · remote

   • Built an AI-concierge → CRM → voice-agent pipeline with tool-calling, multi-step orchestration and webhooks. Verified end to end with a live four-minute AI call.
   • Architected the SchoolExl/TrainExl frontend and its LLM-integration layer; live with about 1,000 learners across India and Jamaica.
   • Automated a zero-downtime production cutover for Tellco AI: 250+ endpoints, a 47-table Postgres schema, 6-tier RBAC, with snapshots, TLS and rollback-on-failure.
   • Ran a security audit across 294 endpoint and role combinations; fixed 2 critical and 5 high-severity issues before client onboarding.
   • Leading a ground-up re-architecture of Tellco for scale; set frontend conventions and CI/CD workflow and mentor junior engineers.

2. Co-founder & COO · HODL

   Jul 2024 – Present

   Nigeria

   • Co-founded HODL, a fintech and blockchain startup launched in Nigeria, and serve as its COO.

3. Full-Stack Engineer & Frontend Lead · HODL Technologies (formerly Lendbit Finance)

   Jul 2024 – Jun 2025

   Remote

   • Shipped account-abstraction and paymaster smart-account onboarding for gasless UX.
   • Built a Farcaster mini-app on Solana (Privy auth, SPL-token flows, in-app PDF receipts), live in production with real user volume.
   • Built real-time DeFi dashboards over live on-chain data (collateralization, loan positions, protocol health) and the shared component library the team standardised on.
   • Integrated Diamond/upgradeable contracts and meta-transactions; contributed to crypto-to-fiat settlement and an AI borrower–lender matching prototype.

4. Senior Frontend Developer (Team Lead) · CoreHealth

   Jan 2024 – Apr 2025

   New York, USA · remote

   • Improved Core Web Vitals by more than 40% through code-splitting, lazy loading and state cleanup, for 2,500 daily active users.
   • Built a reusable component system and PDF, Excel and QR export tooling.
   • Hardened data validation across high-volume clinical records; designed, estimated and shipped features with backend and product teams.

5. Blockchain Engineer, Technical Officer & Mentor · Web3Bridge

   Jan 2024 – Dec 2024

   Lagos, Nigeria · on-site, part-time

   • Built Solidity smart contracts and React and Angular frontends.
   • Wrote subgraph queries that cut API latency by around 40%.
   • Delivered technical mentorship on decentralised application architecture to cohorts moving into Web3 full-stack roles.

6. Mentor & Session Lead (part-time) · Women in DeFi

   May 2024 – Jan 2025

   Lagos, Nigeria · remote

   • Mentored developers in Web3 frontend development through practical projects and scalability practices.

7. Full-Stack Developer (contract) · Zummit Africa · Gigsnet · Just Create It Digital

   Jan 2023 – Mar 2024

   Remote

   • Built UIs for AI-powered applications, including a real-time drowsiness-detection and monitoring system wired to live Python inference services.
   • Resolved critical e-commerce defects, cutting customer-support tickets by about 90%; led a zero-downtime Shopify 1.0 → 2.0 migration.

8. Frontend Developer · Punch Group

   May 2022 – Oct 2022

   San Francisco, CA · remote

   • Built React and Angular UIs for 10+ e-commerce clients and added test coverage across agile sprints.

9. Full-Stack Developer · Feefit Painting & Design

   Mar 2021 – Apr 2022

   Nigeria · hybrid

   • Delivered 15+ responsive UI screens in React, Next.js and Tailwind and integrated backend APIs.

selected projects

• Tellco AI · Voice CRM · Sumeru Tech. A voice CRM that had to go to production without taking customers down. I automated the cutover, audited the API for authorization leaks, wired an AI concierge through to a live phone call, and now lead the re-architecture.
• Voice Labs · Voice AI platform · Sumeru Tech. Speech-to-text, text-to-speech and telephony behind one workspace-scoped API, with a dashboard and a TypeScript client. It is the V2 of Voice Panel, the internal voice layer that serves many of Sumeru Tech's products. I built its text-to-speech, voice catalogue and translation capabilities and its CI.
• SchoolExl / TrainExl · AI adaptive learning · Sumeru Tech. An AI learning platform with voice conversations and streaming tutoring, live with about 1,000 learners in India and Jamaica. I architected the frontend, the layer that connects it to language models, and a design system that four products now share.
• HODL · Global money app · Fintech and Web3. A global money app: hold crypto, spend it, swap it, send it. I co-founded HODL and, until mid-2025, led its engineering: the web app, a multi-chain Farcaster mini-app, gasless smart-account onboarding and the real-time dashboards.
• Inbox triage · lab. A human-in-the-loop assistant that groups incoming messages by intent and drafts replies, but never sends. Risky, unclear or hostile messages go to a person with no draft.
• Acquisitions API · lab. A solo Node and Express backend on Drizzle and Neon Postgres, with Arcjet rate-limiting and bot detection, Better-Auth and JWT authentication, and multi-arch Docker CI/CD.
• PicknPay · lab. A solo full-stack e-commerce monorepo (Turbo and pnpm, React 19, Express) built around an 11-table event-sourced Postgres schema with order and address snapshots and OTP-verified delivery.

skills

AI engineering & agentic systems

LLM API integration (OpenAI, Anthropic), Prompt engineering, Structured outputs, Streaming LLM responses, Context management, Conversation state management, Model-to-UI communication, LLM-powered applications, AI agent development, Tool and function calling, Multi-step orchestration, Agent-to-tool communication, Workflow automation, Webhooks and external tool integrations

Backend engineering & architecture

TypeScript, JavaScript, Python, SQL, Go, PHP, Node.js, Express.js, Fastify, NestJS, Python (FastAPI, Django), Bun, Hono, Laravel

Frontend engineering

JavaScript (ES6+), TypeScript, HTML5, CSS3, React, Next.js, TanStack Start, Angular, Tailwind CSS, Radix UI, shadcn/ui, Zustand, Redux, TanStack Query

DevOps, cloud & infrastructure

Docker, Multi-stage builds, Multi-architecture builds, Nginx, PM2, Linux, Production deployment, Zero-downtime deployment, Rollback strategies, Git and GitHub, GitHub Actions, CI/CD pipelines, Automated testing, Build and deployment automation

Security engineering

Authentication and authorization, Role-based access control (RBAC), JWT, API security, Input validation, OWASP practices, Security auditing, Endpoint and role auditing, Secrets management, Arcjet

Web3 & blockchain engineering

Solidity, Smart contracts, EVM ecosystem, ethers.js, viem, Subgraphs, Blockchain indexing, On-chain data integration, Multi-chain development, Solana, SPL token flows, Account abstraction, Smart accounts, Paymaster integrations

Engineering fundamentals & leadership

Object-oriented programming, Data structures, Algorithms, Asynchronous programming, Software architecture, Design patterns, API design, Debugging, Performance optimization, Maintainable code, Code reviews, Automated testing, Technical leadership, Engineering mentorship

education

B.Sc., Science & Technology Education, Obafemi Awolowo University, Osun, Nigeria · Dec 2021