Kingsley Ajaezo.

Software Engineer

Fairmoney Microfinance Bank

February 2023 - Present

Remote, Lagos

I work on web and mobile systems that power agent operations, merchant banking, lending, KYC, terminal management, and sales workflows.

• Build and maintain fintech products used by merchants, field agents, and internal operations teams.
• Built tools that help 200+ field agents manage merchant visits, follow-ups, inventory, and more than 5,000 daily merchant interactions.
• Delivered dashboards and internal platforms that help teams monitor 10,000+ PoS terminals, merchant performance, stock levels, and daily transactions.
• Used RTK Query for data fetching and caching, with Jest and React Testing Library covering production frontend behavior.
• Shipped mobile and web features for merchant loan applications, onboarding, KYC, payments, transfers, guarantors, terminal requests, and account upgrades.
• Implemented secure authentication and request handling, including token and session management, input validation, XSS and CSRF protections, encryption, decryption, and safer error behavior.
• Helped make production codebases AI-ready with clearer repository guidance and reusable engineering conventions, connected Slack and Jira context through MCP integrations, and automated parts of Gitflow and deployment preparation.
• Improved frontend performance through code splitting, bundle optimization, rendering improvements, and caching, including for staff working with slower network connections.
• Introduced a modular library of 50+ reusable UI components with documentation and examples.
• Mentor junior engineers through pairing, code reviews, and design discussions.

Frontend Blockchain Engineer

March 2024 - June 2024

Remote

Built a DeFi experience on BNB Chain around lending, liquidity pools, swaps, and staking.

• Implemented Ethers.js flows for contract reads, signed transactions, and receipts.
• Added MetaMask, Trust Wallet, and Binance Chain Wallet support with account- and network-aware UX.
• Designed transaction-state and history views that translated on-chain events into clear swap, lending, and staking activity.

Frontend Mentor → CTO / Program Coordinator

Uptick Talent

2023 - Present

Started with hands-on mentorship and grew into technical and program leadership for a talent community.

• Mentored 20+ frontend engineers through project work, code reviews, career guidance, and interview preparation.
• Helped scope and deliver client projects while balancing timelines, constraints, and technical choices.
• Shaped curriculum and technical strategy around skills hiring managers value.
• Coordinated contributors, expectations, and delivery for mentees and partners.

Open Source Software Engineer - MLH Fellowship

Major League Hacking / Meta Lexical

September 2024 - December 2024

Remote

Contributed to Meta's Lexical rich-text editor and its large-scale React ecosystem.

• Documented gaps in existing guides and exposed missing classes in Lexical's default exports.
• Worked within established review and release processes, improving changes based on maintainer feedback.

Software Engineer

Crowdforce

February 2021 - February 2023

Remote, Abuja

Worked on payment, merchant banking, field-agent, and data-collection products used by distributed operations teams.

• Maintained and extended Gateforce, Merchant Portal, Payforce App, and Sales Dashboard.
• Led four frontend engineers taking a merchant portal from idea to production.
• Used RTK Query for frontend data fetching and caching, with Jest and React Testing Library covering business and merchant-facing interfaces.
• Implemented secure authentication, token and session handling, input validation, and practical XSS and CSRF protections across payment and merchant products.
• Contributed to platforms that supported 15,000+ merchants across payment, reporting, and merchant-management workflows.
• Built analytics and reporting views that helped teams understand merchant activity and 50,000+ daily transaction operations.
• Improved performance through code splitting, lazy loading, bundle optimization, rendering improvements, and caching for users across varied network conditions.
• Standardized shared frontend components and delivery workflows.

Software Engineer Intern - Learnable Program

Genesys Tech Hub

June 2020 - February 2021

Enugu, Nigeria

Completed the Learnable software-development and leadership program through real product work.

• Collaborated on Cerebrum, an online learning platform, with designers and backend engineers.
• Implemented authentication, password reset, student and tutor dashboards, and payment integrations.
• Practiced cross-functional teamwork and communicating tradeoffs beyond code.

Web Developer and IT Personnel

Century Gateways Technologies

November 2018 - April 2020

Ado Ekiti, Nigeria

Worked across web development, internal tools, training, and IT support.

• Built and deployed the company website and client-facing tools.
• Contributed to a PHP-based Point of Sale and inventory system for a warehouse.
• Trained students in HTML, CSS, JavaScript, PHP, and Java.
• Handled hardware procurement and day-to-day IT operations.

Hardware Repairs and PC Maintenance Engineer

Armstrong Computers

November 2016 - December 2017

Ishiagu, Nigeria

Started close to the metal, working with physical machines, operating systems, and networks.

• Diagnosed and repaired hardware faults for systems used by small businesses.
• Installed Windows and Linux, handled BIOS configuration, and configured disk partitions.
• Troubleshot networking and connectivity issues.
• Performed preventive maintenance, data recovery, and backups.

Engineering Lead, representing Uptick Talent

Jooav

December 2025 - March 2026

Remote, Lagos

Represented Uptick Talent on a client contract, providing technical leadership for Jooav Inventory, a mobile-first ERP for African FMCG retailers.

• Worked hands-on across the ERP frontend and backend.
• Built the admin frontend with Next.js, React, TypeScript, Tailwind CSS, TanStack Query, Axios, Jest, and React Testing Library.
• Connected the frontend to REST APIs with query caching, mutations, cache invalidation, authentication, loading states, and error handling.
• Contributed to the NestJS backend using Prisma/PostgreSQL and Redis.
• Worked with founders to shape a roadmap around stock tracking, manufacturer restocking, and order visibility.
• Guided and implemented architecture across inventory, product administration, marketplace, and order-tracking flows.
• Reviewed frontend and backend designs and code, unblocking engineers on product and business-logic edge cases.
• Introduced more structure to scoping, testing, rollout, and releases.

Lead Frontend Engineer

February 2022 - July 2022

Remote, Lagos

Built the frontend for an affiliate marketplace, connecting vendor product management, affiliate tracking, and payments.

• Contributed to the product launch; the platform reached 10,000 users within its first two weeks.
• Led frontend technical direction, reviewed code, and coordinated delivery.
• Built vendor dashboards for managing products, with search and filtering, plus affiliate-link generation and commission tracking.
• Integrated Stripe and Flutterwave into the frontend payment flows.
• Created a shared UI component library and set up CI/CD for deployment.

Frontend Engineer

April 2024 - June 2024 · Three-month contract

Improved an existing application through UI cleanup, responsive layouts, and feature integrations.

• Refined existing UI and improved responsiveness across screen sizes.
• Worked on homepage animation and integrated email and link-in-bio features.

Frontend Engineer

November 2025 - April 2026 · Six-month contract

Worked on event discovery and ticketing experiences, including a ticket-verification progressive web app (PWA).

• Worked on flows for discovering and purchasing events, experiences, airport transfers, and eSIM services.
• Worked on a PWA for ticket verification.