I’m looking to work on an impactful product in a team that values engineering quality, ownership, and developer experience, where AI is used as a practical tool to solve complex problems. I thrive in autonomous, no-blame environments with open feedback, healthy technical discussions, and enough structure to maintain high standards while staying flexible and continuously improving.
Looking for a job
Nelson Xavier Zambrano Sanabria
@nelxaz
Senior Frontend Engineer building scalable React/TypeScript systems. Strong in DX, testing, CI/CD, and AI-enhanced engineering workflows.
ColombiaWhat I'm looking for
I am a Senior Software Engineer with over 8 years of experience specializing in frontend development using React and TypeScript, focused on scalable B2B SaaS products, developer experience, and sustainable frontend architecture. I have led high-impact initiatives including migrations (linters, bundlers, test runners), modernizing legacy codebases, and improving CI/CD and local development performance while maintaining a low Change Failure Rate.
At Apploi I implemented production features, contributed to an internal design system, defined testing strategies targeting 60–80% coverage, and mentored junior engineers. Previously at Feedback Software I built React Native mobile features, owned iOS/Android release processes, and collaborated across small teams with backend services.
Experience
Work history, roles, and key accomplishments
AP
Current
Senior Software Engineer
Apploi
Jan 2020 - Present (6 years 5 months)
Led frontend work on a large B2B SaaS healthcare workforce platform, implementing a document-signing feature, reducing pre-commit hook time via linter migration, and maintaining a Change Failure Rate below 1%. Drove bundler and test-runner migrations and contributed to an internal design system to improve developer experience and build performance.
FS
Frontend Engineer
Feedback Software
Jan 2017 - Dec 2020 (3 years 11 months)
Implemented features for a React Native social app, owned iOS/Android release processes, and supported a React web client while integrating with REST backend services. Transitioned from part-time to full-time and delivered end-to-end feature lifecycles within a small team.
Education
Degrees, certifications, and relevant coursework
Universidad Nacional Experimental del Táchira
Engineering, Informatics/Software
2011 - 2024
Grade: 6.41/9
Tech stack
Software and tools used professionally
Availability
Looking for a job
Location
ColombiaAuthorized to work in
Salary expectations
75k-90k USD
Job categories
Software EngineerFrontend EngineerPrincipal Frontend ArchitectEngineering MentorDeveloper Experience EngineerFull Stack EngineerMobile EngineerTechnical LeadFrontend Engineering Team LeadSenior Software EngineeringSenior Software Development EngineerSr. Software EngineerSenior Software DeveloperSenior Staff Software EngineerSenior Principal Software EngineerSr Lead Software Engineer
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