Chukwuka Isichei

Full Stack Developer at Warpspeed Financials Limited (2024-02 – Present)

Built production fintech systems across React/Next.js frontends and NestJS/Express backends
Designed REST and GraphQL APIs for payments, reporting and real-time collaboration
Implemented RBAC, authentication and transaction workflows with JWT/Passport
Developed dashboards with reporting APIs for financial activity monitoring, dispute resolution, reconciliation and auditing
Built a real-time chatting platform microservice using GraphQL and WebSockets, integrated into a shared Slack workspace
Led development of a field staff management application with productivity tracking, check-ins, daily wages automation and dynamic metrics
Facilitated database migrations from MongoDB to MySQL and worked with PostgreSQL and Redis
Used Docker and contributed to deployment workflows; performed code reviews across engineering teams

Full Stack Developer (Contract) at Healthcare Campaign Platform (2024-01 – 2024-12)

Designed and built a full-stack vaccination-campaign management platform (NestJS/Prisma backend, Next.js/React frontend) with 94 endpoints, 23 database models and 20 controllers
Architected an offline-first sync engine using staging entry tables and a commit-flag dependency graph, promoting records through atomic transactions with foreign-key remapping
Built interactive analytics dashboards (Recharts) for vaccination coverage, LGA/ward distribution and dose administration trends, plus an interactive Leaflet map with coverage-based markers
Implemented three-tier RBAC (Agent/Supervisor/Admin) with JWT/Passport authentication across separate web and mobile auth flows
Built full agent/supervisor lifecycle management (creation, decommissioning with successor handoff, reactivation, location reassignment)
Provisioned and deployed staging environment on AWS EC2 (nginx, systemd); authored deployment runbook and Prisma migration workflow
Authored technical design documentation and generated full Swagger/OpenAPI documentation across all 94 endpoints

Frontend Developer (Contract) at Logistics Platform (Loopfreight) (2024-01 – 2025-01)

Built an end-to-end driver rewards system (leaderboard, monthly recognitions, campaign management) across a layered API architecture
Stood up webhook management data layer and a paginated admin UI for configuring and updating webhook endpoints
Introduced a platform-wide Manager role, auditing and updating ~20 role-gated pages for RBAC consistency
Diagnosed and fixed UX defects including partner-booked ride blocking, replacing with dismissible banner and time-based staleness rules
Authored project conventions documentation codifying API-domain architecture and styling standards

Frontend Developer (Contract) at Fleet Management & Tracking Platform (2025-01 – Present)

Implemented live GPS asset tracking (30-second polling) with Google Maps-based fleet view and color-coded online/offline status indicators
Built geo-fencing with Google Places autocomplete and configurable breach actions, plus remote shutdown/unlock operations with admin/subscription gating
Developed dual payment flows (payment gateway and wallet) and admin subscription management including plan CRUD, billing cycles and feature toggles
Built a financial overview dashboard, wallet operations panel and standardised data tables across the admin portal
Integrated Google SSO with role-based access control gating admin routes and remote operations

Associate Software Developer at Decagon (2023-06 – 2023-12)

Developed React and Node.js applications in Agile teams under certified Scrum masters
Led development of a prototype wallet system for savings and bill settlements
Completed Agile training and integrated the Agile methodology in developing and prototyping products

About