Senior Frontend Developer HTML, CSS, JavaScript, TypeScript, Node.js, Kafka Warsaw, Łódź, Gdańs[...]

Diverse CG Sp. z o.o. Sp.k.; Warszawa; On-site; PLN 200,880 - 279,000; Full time

Benefits offered by this job

Private medical care

Co-financing for sports card

Constant support of dedicated consultant

Job summary

Diverse CG Sp. z o.o. Sp.k. is looking for a Senior Frontend Developer in Warsaw, Poland. The ideal candidate will define and maintain frontend architecture while collaborating with backend engineers and designers. Responsibilities include optimizing application performance and integrating with APIs.

Requirements include hands-on experience with Web Components / Lit and Node.js. Benefits include private medical care and co-financing for a sports card.

Qualifications

• Hands-on experience with Web Components / Lit and Node.js / npm ecosystem.
• Experience with testing frameworks, such as Vitest.

Responsibilities

• Define and maintain frontend architecture, focusing on state management and component reusability.
• Analyze and optimize application performance, improving load times and Core Web Vitals.
• Collaborate with backend engineers, UX/UI designers, and product managers.
• Integrate frontend applications with REST and GraphQL APIs.
• Support delivery of product features in a cross-functional environment.

Skills

Web Components / Lit

Node.js / npm

Testing frameworks (Vitest)

Tools

CI/CD processes

Kafka

NinjaFork

Message queue solutions (MQ)

Job description

As a recruitment company, DCG understands that every business is powered by experienced professionals. Our management style and partnership approach enable us to meet your needs and provide continuous support. Due to our ongoing growth and the large number of recruitment projects we undertake for our partners, we are currently looking for:

Senior Frontend Developer

Responsibilities

• Define and maintain frontend architecture, including best practices for state management and component reusability
• Analyze and optimize application performance, including load times and Core Web Vitals
• Collaborate with backend engineers, UX/UI designers, and product managers
• Integrate frontend applications with REST and GraphQL APIs
• Support delivery of product features in a cross‑functional environment

Requirements

• Hands‑on experience with: Web Components / Lit and Node.js / npm ecosystem
• Experience with testing frameworks, such as Vitest

Nice to have

• Experience with CI/CD processes
• Familiarity with Kafka
• Familiarity with NinjaFork
• Familiarity with message queue solutions (MQ)

Offer

• Private medical care
• Co‑financing for the sports card
• Constant support of dedicated consultant

Personal Consulting Agency (License No. 4642)