Senior Frontend Engineer (React)
⚲ Warszawa
8 000 - 12 000 USD netto (B2B)
Wymagania
- React
- AI
- TypeScript
Opis stanowiska
Senior Frontend Engineer (React)
💰 Salary: $8000-$12,000
🕦 Full-time
☑️ B2B
🌴 Hybrid
We are looking for a Senior Frontend Engineer to join a fast-growing AI product company's engineering team. The role sits at the crossroads of frontend architecture and product experience, owning both the delivery of business-critical Next.js applications and the design of intuitive, trustworthy user experiences for agentic AI products.
Requirements
• Over 5 years of frontend engineering experience, including 3+ years specializing in React and modern TypeScript.
• Production Next.js experience: SSR applications at scale, app router, server components, and the trade-offs between SSR, SSG, and CSR.
• Complex state management for hard scenarios: real-time collaboration, optimistic updates, multi-tenant isolation, large-scale data sync.
• Experience building AI/LLM interfaces: streaming token responses, chat UIs, semantic search, or similar real-time AI interactions.
• High-load performance work: you monitor Core Web Vitals and know how to improve them under heavy traffic and large datasets.
• Enterprise application depth: localization, accessibility, security, and compliance, you understand the complexity beyond "making it work".
• A security-conscious approach to engineering: you handle sensitive data carefully and think about the security implications of what you ship.
• Strong craft and product instinct: you don't wait for perfect designs, you spot UX issues and propose solutions, and you're never satisfied with "good enough".
• AI-native working style. You already use AI coding agents daily and are eager to push the boundaries of harness engineering.
• Clear communication. You articulate design decisions and technical trade-offs clearly, verbally and in writing.
Key Responsibilities
• Design and ship production Next.js SSR applications with complex state, high-load scenarios, and real-time AI interactions at scale.
• Build interfaces for AI-powered features: streaming LLM responses, semantic search across millions of documents, interactive knowledge graphs, and agentic builders.
• Architect component libraries and maintain the design system, ensuring reusability, accessibility, and consistent UX across the platform.
• Deliver enterprise-grade functionality: localization, accessibility compliance, cross-browser support, and security.
• Take full ownership after launch: monitor performance in production, optimize bundle sizes, instrument for Core Web Vitals, and ensure things scale gracefully.
• Keep the bar high on code quality, testing, and craft through thoughtful code review and mentorship.
Get to know DevsData: We are a technology consulting company and a recruitment agency, delivering software solutions to clients from Europe and the US. We work 100% remotely, in an international team, including people from Asia, London, or San Francisco. We employ people with experience in international corporations as well as students of the best technical and business universities. Find out more: https://devsdata.com/
💰 Salary: $8000-$12,000
🕦 Full-time
☑️ B2B
🌴 Hybrid
We are looking for a Senior Frontend Engineer to join a fast-growing AI product company's engineering team. The role sits at the crossroads of frontend architecture and product experience, owning both the delivery of business-critical Next.js applications and the design of intuitive, trustworthy user experiences for agentic AI products.
Requirements
• Over 5 years of frontend engineering experience, including 3+ years specializing in React and modern TypeScript.
• Production Next.js experience: SSR applications at scale, app router, server components, and the trade-offs between SSR, SSG, and CSR.
• Complex state management for hard scenarios: real-time collaboration, optimistic updates, multi-tenant isolation, large-scale data sync.
• Experience building AI/LLM interfaces: streaming token responses, chat UIs, semantic search, or similar real-time AI interactions.
• High-load performance work: you monitor Core Web Vitals and know how to improve them under heavy traffic and large datasets.
• Enterprise application depth: localization, accessibility, security, and compliance, you understand the complexity beyond "making it work".
• A security-conscious approach to engineering: you handle sensitive data carefully and think about the security implications of what you ship.
• Strong craft and product instinct: you don't wait for perfect designs, you spot UX issues and propose solutions, and you're never satisfied with "good enough".
• AI-native working style. You already use AI coding agents daily and are eager to push the boundaries of harness engineering.
• Clear communication. You articulate design decisions and technical trade-offs clearly, verbally and in writing.
Key Responsibilities
• Design and ship production Next.js SSR applications with complex state, high-load scenarios, and real-time AI interactions at scale.
• Build interfaces for AI-powered features: streaming LLM responses, semantic search across millions of documents, interactive knowledge graphs, and agentic builders.
• Architect component libraries and maintain the design system, ensuring reusability, accessibility, and consistent UX across the platform.
• Deliver enterprise-grade functionality: localization, accessibility compliance, cross-browser support, and security.
• Take full ownership after launch: monitor performance in production, optimize bundle sizes, instrument for Core Web Vitals, and ensure things scale gracefully.
• Keep the bar high on code quality, testing, and craft through thoughtful code review and mentorship.
Get to know DevsData: We are a technology consulting company and a recruitment agency, delivering software solutions to clients from Europe and the US. We work 100% remotely, in an international team, including people from Asia, London, or San Francisco. We employ people with experience in international corporations as well as students of the best technical and business universities. Find out more: https://devsdata.com/
🔍 Dekoder Ogłoszenia
🔴
sits at the crossroads of frontend architecture and product experience, owning both the delivery of business-critical Next.js applications and the design of intuitive, trustworthy user experiences for agentic AI products.
Oczekuje się, że będziesz nie tylko kodować, ale także aktywnie uczestniczyć w projektowaniu UX i architekturze, co może oznaczać szerszy zakres obowiązków niż typowy frontend.
🔴
Complex state management for hard scenarios: real-time collaboration, optimistic updates, multi-tenant isolation, large-scale data sync.
Stanowisko wymaga rozwiązywania bardzo złożonych problemów ze stanem aplikacji, które mogą być trudne do zaimplementowania i utrzymania.
🔴
High-load performance work: you monitor Core Web Vitals and know how to improve them under heavy traffic and large datasets.
Praca będzie wymagać ciągłego optymalizowania wydajności aplikacji pod dużym obciążeniem, co może być czasochłonne i frustrujące.
🔴
Enterprise application depth: localization, accessibility, security, and compliance, you understand the complexity beyond "making it work".
Oczekuje się dogłębnej wiedzy i doświadczenia w obszarach często pomijanych w mniejszych projektach, co może wymagać nauki lub posiadania specjalistycznej wiedzy.
🔴
you don't wait for perfect designs, you spot UX issues and propose solutions, and you'
Oczekuje się proaktywności w identyfikowaniu i rozwiązywaniu problemów z UX, co może oznaczać dodatkowe obowiązki wykraczające poza samo kodowanie.