Kervens
From Haiti (UTC-4)
Kervens – AWS, React, Typescript
Kervens is a senior full-stack engineer with deep expertise in React, Next.js, Node.js, and TypeScript, and strong hands-on experience with GCP infrastructure. He has led end-to-end builds of complex platforms, including AI-powered systems and custom web frameworks. His strengths include production LLM pipelines, system design, and clear, structured communication.
5 years of commercial experience
Main technologies
Additional skills
Direct hire
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Let’s get started today!Experience Highlights
Software Architect
A cloud-based visual software development environment combining graphical editing, source code, AI-assisted development, and application deployment.
- Architected and developed a visual software development platform integrating backend services, application runtimes, code generation, visual editing, AI-assisted development, and cloud infrastructure.
- Built a platform spanning about 30 repositories and about 20 services, including an 80-package monorepo, with ownership of backend systems, runtimes, developer tooling, and infrastructure.
- Reduced development-server request latency from up to about 8 seconds to about 100–300 ms by caching deployment manifests and resource pointers and deploying servers in a more appropriate region.
- Reduced browser editor memory usage by about 65% by diagnosing and fixing a memory leak under comparable workloads.
- Enabled near-instant module updates and incremental page builds using dependency tracking, a service-worker-based evaluation cache, and Web Workers for background processing.
- Enabled bidirectional visual/code editing by building a code transformation engine using parsing, abstract syntax trees, and source-code generation while preserving editable code.
- Automated platform service deployment with Docker and GitHub Actions, streamlined monorepo package publishing with dependency-aware tooling, and enabled deployment of user applications to external hosting providers.
Software Engineer
A SaaS form-building platform with configurable form and funnel workflows supporting payments, upsells, downsells, activity tracking, and analytics.
- Developed the initial form-building platform from technical design to customer-facing release, then transitioned its architecture and infrastructure to an expanded engineering team.
- Delivered a customer-facing SaaS MVP in under 3 months, initially working alone to build a drag-and-drop form editor, reusable form renderer, backend services, and analytics.
- Designed and implemented the initial backend, including APIs, data models, and approximately 2–3 services, before handing off development to additional engineers.
- Enabled publishing to Framer and custom hosting through a reusable form-rendering package and Framer component integrations.
- Connected payments and analytics by integrating Stripe and Tinybird into the form-building platform.
- Supported handoff to a five-engineer team by coordinating engineering work and migrating the application from GCP to Heroku to match the incoming team’s experience.
Lead Engineer
A blockchain-based music streaming and investment ecosystem.
- Led a seven-engineer team building a music streaming and investment platform across backend services, infrastructure, web, mobile, and blockchain integrations.
- Led technical delivery across backend, web, mobile, and infrastructure while remaining hands-on with architecture and implementation.
- Guided the transition to a decentralized Listen-to-Earn architecture using Web3 protocols and blockchain integrations.
- Contributed to a fractional music-ownership marketplace through product architecture and smart-contract integrations.
- Optimized frontend performance and state management for complex, real-time audio data feeds across web and mobile.
Full-Stack Developer
A marketing technology SaaS platform used by business customers.
- Contributed to backend services, APIs, databases, and product integrations while leading frontend development for a production marketing SaaS platform.
- Delivered features across frontend and backend systems within an established SaaS application.
- Led frontend implementation and coordinated work with backend engineers as product requirements evolved.
- Developed product features across the frontend, backend, and application data layer.
- Integrated application services, APIs, databases, and cloud-based infrastructure as the platform evolved.
Software Engineer
A fintech trading platform focused on backend systems and large-scale data acquisition.
- Implemented web scrapers and data-extraction logic for a fintech trading platform using Node.js and Python.
- Built scrapers to collect external financial data and convert extracted content into structured formats.
- Engineered scalable data-scraping pipelines to aggregate real-time financial data from fragmented global sources, supporting the availability of trading signals.
- Developed processes to clean unstructured web data and load it into trading databases.
- Improved scraping reliability through retries, error handling, and proxy rotation for unstable external sources.
- Implemented error-handling and proxy-rotation logic to maintain consistent data flow across volatile external environments.
Front-end Developer
A legal technology platform.
- Built the React frontend for a legal technology platform and integrated it with backend REST APIs.
- Translated product mockups and specifications into production user interfaces.
- Developed reusable application components and managed client-side application state.
- Supported ongoing product iteration as requirements evolved throughout an extended development cycle.