Research Scientist, Kaggle
Google (10000+ pracowników)
Programowanie Frontend
Programowanie Backend
Poland
Pełny etat
Law
Doctoral degree
Java
Master's degree
C++
JavaScript
Natural language processing
AI
Python
Mobile devices
Fullstack Engineer (AI, Distributed Systems, Automation)
Web Impact
Programowanie Full-Stack
AI i Uczenie Maszynowe
Testy automatyczne IT
Just Join IT
Warsaw(Poland)
Wrocław(Poland)
Poznań(Poland)
Kraków(Poland)
Katowice(Poland)
Gdańsk(Poland)
Zdalnie
Pełny etat
Mid
14,000 - 20,000 PLN / miesiąc
Distributed systems
TypeScript
Elixir
Node.js
Next.js
Rust
React
AI Tools
At Web Impact, we’re more than just an email marketing agency and digital solutions provider. We build cutting-edge, socially impactful products that redefine how businesses operate in the digital world.
We’re looking for a Fullstack Engineer who enjoys building complex systems, integrating external services, and leveraging AI tools to speed up development and automate workflows.
If you’re excited about combining modern frontend development with AI-driven workflows and automation tools like Claude Code, Cursor, and LLM frameworks, this one is for you.
What You’ll Do
Develop and contribute to end-to-end features across SaaS products and internal tools, collaborating with senior engineers on architecture and implementation decisions.
Build modern, high-performance frontends using Next.js and React.js
Develop scalable backend services using Node.js / NestJS
Design and integrate APIs (REST, WebSockets, external services)
Build and maintain automation workflows and background jobs
Work with async systems, queues, and event-driven architectures
Integrate third-party services with real-world constraints (rate limits, retries, auth flows)
Use AI tools to improve development speed, testing, and automation
Collaborate directly with product, data, and leadership teams
Build MVPs, proof-of-concepts, and new product ideas from scratch
Rapidly validate business ideas through experimentation and iteration
Help evolve successful prototypes into production-ready systems
AI & Automation
This role includes working with modern AI tooling and automation systems, with a strong focus on speed, ownership, and execution:
Using tools like Claude Code, Cursor, and OpenAI SDK in daily development
Building AI-driven workflows and integrations quickly and iteratively
Automating repetitive processes (data handling, content, integrations)
Applying LLMs in production with a pragmatic, results-first approach
Taking ownership of problems - from idea to production
Shipping fast, testing in real conditions, and iterating based on outcomes
Being accountable for delivery - not just writing code, but making things work end-to-end
Prioritizing execution over perfection - speed is key
What We’re Looking For
2,5+ years of professional full-stack experience
Strong frontend skills in React.js / Next.js
Backend experience with Node.js (NestJS preferred)
Experience integrating external APIs (auth, pagination, retries, rate limits)
Hands-on experience with modern AI tools (OpenAI, Claude, Cursor, etc.)
Good SQL skills (PostgreSQL preferred)
Experience working with async processing, queues, and background jobs
Understanding of building reliable systems (error handling, retries, observability)
Strong communication skills and ability to work cross-functionally
Fluent in English and Polish
Nice to Have
Experience with Rust (async, Tokio, Axum)
Experience with Elixir (Phoenix LiveView, GenServer)
Understanding of distributed systems and architectures
Experience with multi-region deployments and geo-distributed infrastructure
Experience building systems with high parallelism (a large number of workers processing jobs concurrently)
Familiarity with distributed databases and data consistency trade-offs
Experience with multi-tenancy architectures (tenant isolation, scaling strategies)
Experience working with high-throughput event pipelines
Our Tech Stack
Frontend: Next.js, React.js
Backend: Node.js, NestJS, Golang, Elixir, Rust
Data: PostgreSQL, BigQuery, ClickHouse
Infra: AWS, Fly.io, Google Cloud, DigitalOcean
Queues & Workers: LavinMQ, BullMQ, Kafka
CI/CD: GitLab CI
AI/ML & Automation: Proprietary GenAI models, OpenAI, Claude, internal tooling
Integrations: REST, gRPC, WebSockets, external APIs with rate limits
Why Join Us?
Work on high-scale SaaS systems processing hundreds of millions of events daily, with real-time pipelines and data-heavy workloads.
Ownership from day one - influence architecture, technology choices, and product direction.
Collaborate with world-class engineers, AI specialists, and PMs.
Innovation-first culture - explore cutting-edge frameworks and architectures.
Fast execution, minimal bureaucracy, no unnecessary meetings
Opportunity to work with modern AI tooling in production
Competitive senior-level compensation and career growth.
Social impact - contribute to automation products that empower businesses and communities.
Our Streamlined Hiring Process
Initial call
Technical deep dive with our team
Decision