Nelson FrankExperience

Professional history

Experience

A timeline of my professional journey — the roles, teams, and problems that shaped how I build software.

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Frontend Developer

MUST Company
Feb 2025 — Present
Seoul, South Korea (Remote)Full-time

Frontend Developer focusing on React and TypeScript applications, state management architecture, and high code quality standards.

  • #1 contributor (32% of commits) across 5 client projects through code quality and clear communication
  • Delivered 3 enterprise React + TypeScript apps with complex data workflows on tight timelines
  • Architected state management with Zustand and React Query, achieving 40% faster data fetching
  • Maintained 90%+ test coverage and conducted thorough code reviews for distributed team
ReactTypeScriptZustandReact QueryJest

Fullstack Nextjs/Nestjs Developer

Kalen Limited
2022 — 2024
Dar es Salaam, TanzaniaFull-time

Developed scalable full-stack web applications and data visualization dashboards using Next.js and NestJS, optimizing database queries and API endpoints.

  • Built scalable Next.js frontends with SSR/SSG and data visualization dashboards using Recharts
  • Led database optimization (PostgreSQL) reducing query times by 60%, improving dashboard performance
  • Designed REST & GraphQL APIs and established component library standards with Tailwind CSS
Next.jsNestJSPostgreSQLTailwind CSSRechartsGraphQLREST APIs

Fullstack React/Nodejs Developer

Id8 Space
2021 — 2022
Dar es Salaam, TanzaniaFull-time

Built responsive user interfaces and robust backend APIs, deploying secure cloud infrastructures and mentoring junior team members.

  • Developed pixel-perfect UIs and interactive data tables with advanced filtering, sorting, and inline editing
  • Deployed on AWS (EC2 + CloudFront) achieving 99.9% uptime and sub-1s load times
  • Mentored 3 junior developers and wrote technical documentation reducing onboarding time by 50%
ReactNode.jsAWSEC2CloudFrontTailwind CSS

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Includes education, certifications, and additional side projects.

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