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I’m Robert Feldmanis, a React/TypeScript front-end and full-stack developer with 4+ years of software and automation engineering experience. I focus on building end-to-end products—from debugging and performance improvements to shaping UI, state, and APIs—often using AI tools to accelerate iteration while keeping code quality high. I’ve built and shipped user-facing front ends for AI-driven and enterprise applications, including real-time streaming UIs (SSE) and complex form workflows with validation and efficient data updates. I enjoy root-cause problem solving, thoughtful component design and accessibility, and writing clear documentation that helps teams move faster.…I’m Robert Feldmanis, a React/TypeScript front-end and full-stack developer with 4+ years of software and automation engineering experience. I focus on building end-to-end products—from debugging and performance improvements to shaping UI, state, and APIs—often using AI tools to accelerate iteration while keeping code quality high. I’ve built and shipped user-facing front ends for AI-driven and enterprise applications, including real-time streaming UIs (SSE) and complex form workflows with validation and efficient data updates. I enjoy root-cause problem solving, thoughtful component design and accessibility, and writing clear documentation that helps teams move faster.

Robert Feldmanis

Front-End Developer, Full Stack Developer, Software Engineer, +2

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I’m Robert Feldmanis, a React/TypeScript front-end and full-stack developer with 4+ years of software and automation engineering experience. I focus on building end-to-end products—from debugging and performance improvements to shaping UI, state, and APIs—often using AI tools to accelerate iteration while keeping code quality high. I’ve built and shipped user-facing front ends for AI-driven and enterprise applications, including real-time streaming UIs (SSE) and complex form workflows with validation and efficient data updates. I enjoy root-cause problem solving, thoughtful component design and accessibility, and writing clear documentation that helps teams move faster.…I’m Robert Feldmanis, a React/TypeScript front-end and full-stack developer with 4+ years of software and automation engineering experience. I focus on building end-to-end products—from debugging and performance improvements to shaping UI, state, and APIs—often using AI tools to accelerate iteration while keeping code quality high. I’ve built and shipped user-facing front ends for AI-driven and enterprise applications, including real-time streaming UIs (SSE) and complex form workflows with validation and efficient data updates. I enjoy root-cause problem solving, thoughtful component design and accessibility, and writing clear documentation that helps teams move faster.

Available to hire

I’m Robert Feldmanis, a React/TypeScript front-end and full-stack developer with 4+ years of software and automation engineering experience. I focus on building end-to-end products—from debugging and performance improvements to shaping UI, state, and APIs—often using AI tools to accelerate iteration while keeping code quality high.

I’ve built and shipped user-facing front ends for AI-driven and enterprise applications, including real-time streaming UIs (SSE) and complex form workflows with validation and efficient data updates. I enjoy root-cause problem solving, thoughtful component design and accessibility, and writing clear documentation that helps teams move faster.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Russian

Fluent

Latvian

Advanced

Work Experience

Front-end Developer at 28Stone

April 1, 2025 - Present

Worked as a front-end developer for a software consultancy, owning features and quality across multiple client projects. Root-caused a WordPress editor outage caused by database connection limits, added a request queue to cap block preview concurrency, and removed connection-related errors. Delivered tooling to compile shared SCSS into an editor stylesheet for consistent styling. Migrated ~40 WordPress lazy block templates into version control with scripts generating accurate import files and previews. Built and maintained complex React interfaces (nested forms and grids) with schema-driven validation (Zod) and smaller RFC 6902 JSON Patch payloads; improved debugging flows by linking error lists to specific fields across tabs. Reworked core Mantine components to align with Figma design systems and scaled UI via shared theme variables. Improved testing coverage from 57% to 80% using unit, component, Storybook, and Playwright E2E tests; wrote custom ESLint rules and extensive documentati

Full-stack Developer at Freelance

April 1, 2024 - March 31, 2025

Built and owned the architecture and delivery of a People Management CRUD application, working directly with client requirements. Implemented a modular NestJS GraphQL API (resolvers/services) on a Prisma schema while reducing API calls; typed the front end via the generated GraphQL schema. Added custom unique-email validation and a global validation pipe to aggregate errors for consistent front-end handling.

Automation Engineer at Expert Tooling and Automation

September 1, 2022 - September 30, 2024

Delivered automation and full-feature engineering work including a React/TypeScript/NestJS project management dashboard (state, search, sortable/filterable grid) with a NestJS proxy to hide API keys. Built a Python + SQL file search/extraction tool that reduced a week-long manual task to about a day. Automated quotations using Excel/VBA/Power Query and produced Power BI dashboards, reducing processing time significantly and minimizing manual typing errors.

Design Engineer / Web Developer at DJ Racecars

September 1, 2020 - August 31, 2021

Built the company website featuring a custom 3D product customiser using JavaScript and Three.js/GLTF, plus supporting integrations for messaging. Improved traffic performance over several months and reduced ongoing costs by removing external dependencies. Focused on creating a smooth interactive user experience for product configuration.