Mark Chukwu

Senior Full-Stack Engineer - Purple - Israel (Remote)

(2026-04)

Own end-to-end architecture and delivery of self-hosted Node.js/TypeScript applications — managing infrastructure, networking, security, and external database configuration independently.
Build scalable backend services with REST endpoints, custom authentication, input validation, and structured logging; design data models across Supabase, Postgres, and Firebase with caching strategies.
Develop and maintain Wix CLI marketplace apps with dashboard extensions and admin UIs, leveraging the Wix SDK and Platform APIs to integrate deeply with Stores, Orders, and eCommerce objects.
Implement complex product logic including configurable settings panels, additional fees rules, file upload flows, and service plugins (SPIs) for shipping address validation.
Leverage Claude Code and Cursor throughout the development lifecycle to accelerate delivery, streamline refactoring, and sustain high-velocity output without sacrificing code quality.

Frontend Engineer - Jobin.cloud - Dublin, Ireland (Remote)

(2024-12 - 2026-04)

Built and shipped scalable production features for a B2B SaaS platform, owning the full lifecycle from ambiguous requirement through architecture, implementation, testing, and deployment.
Led Vue-to-React migration, introducing scalable architecture and Redux Toolkit state management — feature delivery speed doubled without regressions.
Integrated frontend applications with RESTful and GraphQL APIs, implementing authentication flows, real-time data feeds, and business metric endpoints with comprehensive error handling.
Built reusable UI component libraries using TanStack Query, Tailwind CSS, and shadcn/ui; established consistent design system patterns adopted across the entire product team.
Debugged complex frontend issues including optimistic UI updates, race conditions, and cross-browser compatibility — resolving them before they reached production.

Full-Stack Developer - ProxySock - Canada (Remote)

(2024-11 - 2025-05)

Solo-built a complete B2B SaaS platform from zero — designing and shipping the frontend, backend APIs, PostgreSQL schema, Stripe payment integration, and AWS cloud infrastructure entirely independently.
Wrote and optimised SQL across a multi-tenant PostgreSQL database with 3,000+ daily transactions, designing schema, implementing indexes, and ensuring data integrity at scale.
Improved platform reliability using Redis caching, query optimisation, and Sentry observability — maintaining 99.9% uptime across the live production system.
Caught a critical security vulnerability in LLM-generated code during review before it shipped — demonstrating rigorous, adversarial code analysis as standard practice.
Set up Docker containerisation and GitHub Actions CI/CD pipeline enabling automated builds, preview deployments on every PR, and reliable production releases.

Junior Frontend Developer - Proficient Computing - Nigeria (Remote)

(2021-06 - 2022-05)

Built responsive web applications for e-commerce and booking platforms with clean component structure, REST API integration, and cross-browser compatible layouts.
Introduced Jest and Cypress automated test coverage from 0% to 85%, establishing reliable testing discipline and maintainable code standards.

WordPress Web Developer - Jehoworld - Washington DC, USA (Remote)

(2019-07 - 2021-06)

Built and maintained professional client websites for a US-based company, delivering custom themes, REST API integrations, and performance optimisation — cutting average page load from 4s to under 2s.

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