AI / Full Stack Engineer (TypeScript/Node.js, React)
⚲ Warszawa
Do uzgodnienia
Wymagania
- Nest.js
- TypeScript
- Node.js
- AI/ML
- React
Opis stanowiska
About Webellian
Webellian is a well-established Digital Transformation and IT consulting company committed to creating a positive impact for our clients. We strive to make a meaningful difference in diverse sectors such as insurance, banking, healthcare, retail, and manufacturing. Our passion for cutting-edge and disruptive technologies, as well as our shared values and strong principles, are what motivate us. We are a community of engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy.
About the role
We are seeking a Senior AI/Full Stack Engineer to join our team and drive the development of AI-powered solutions for our clients. You will work on projects that combine modern web development with applied AI - from building intelligent agents and search systems to deploying and optimizing language models on dedicated infrastructure.
This role bridges two worlds: solid full-stack engineering and practical AI/ML implementation. You'll design, build, and ship products that leverage LLMs, RAG, and other AI techniques to solve real business problems.
Your responsibilities
• Designing and developing full-stack applications with AI capabilities
• Deploying, configuring, and optimizing LLMs (both cloud APIs and self-hosted)
• Building and maintaining RAG pipelines, vector search, and knowledge retrieval systems
• Integrating AI systems with external services and APIs
• Evaluating and selecting appropriate models and tools for specific use cases
• Writing clean, maintainable code with tests and documentation
• Proposing technical improvements and architectural decisions
• Supporting and mentoring less experienced team members
Must-have requirements
AI/ML:
• Hands-on experience with LLM deployment and serving (cloud APIs and/or self-hosted solutions)
• Experience building RAG systems (embeddings, vector stores, retrieval strategies)
• Understanding of prompt engineering and agent/tool-use patterns
• Ability to evaluate model performance and make informed trade-off decisions
Full Stack:
• 5+ years in full-stack development with TypeScript/Node.js, Nest.js
• Frontend experience with React
• Relational databases (PostgreSQL or similar), Redis
• Docker, basic CI/CD
Soft skills:
• Self-driven, able to take ownership of projects end-to-end
• Strong problem-solving skills
• English B2+ (C1 preferred)
• Excellent communication - able to translate technical concepts for non-technical stakeholders
Nice-to-have
• Experience with model fine-tuning (LoRA, QLoRA)
• MLOps practices (experiment tracking, model versioning)
• Familiarity with agent frameworks (LangChain, Vercel AI SDK, or similar)
• Experience with GPU infrastructure and model optimization (quantization, inference tuning)
• AWS or other cloud provider (working knowledge)
What we offer
• Projects at the intersection of AI and software engineering
• Opportunity to work with cutting-edge AI tooling and local GPU infrastructure
• Autonomy and ownership over technical decisions
• Hybrid work mode
• Small, collaborative team
• Challenging problems - no boring CRUD work
Webellian is a well-established Digital Transformation and IT consulting company committed to creating a positive impact for our clients. We strive to make a meaningful difference in diverse sectors such as insurance, banking, healthcare, retail, and manufacturing. Our passion for cutting-edge and disruptive technologies, as well as our shared values and strong principles, are what motivate us. We are a community of engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy.
About the role
We are seeking a Senior AI/Full Stack Engineer to join our team and drive the development of AI-powered solutions for our clients. You will work on projects that combine modern web development with applied AI - from building intelligent agents and search systems to deploying and optimizing language models on dedicated infrastructure.
This role bridges two worlds: solid full-stack engineering and practical AI/ML implementation. You'll design, build, and ship products that leverage LLMs, RAG, and other AI techniques to solve real business problems.
Your responsibilities
• Designing and developing full-stack applications with AI capabilities
• Deploying, configuring, and optimizing LLMs (both cloud APIs and self-hosted)
• Building and maintaining RAG pipelines, vector search, and knowledge retrieval systems
• Integrating AI systems with external services and APIs
• Evaluating and selecting appropriate models and tools for specific use cases
• Writing clean, maintainable code with tests and documentation
• Proposing technical improvements and architectural decisions
• Supporting and mentoring less experienced team members
Must-have requirements
AI/ML:
• Hands-on experience with LLM deployment and serving (cloud APIs and/or self-hosted solutions)
• Experience building RAG systems (embeddings, vector stores, retrieval strategies)
• Understanding of prompt engineering and agent/tool-use patterns
• Ability to evaluate model performance and make informed trade-off decisions
Full Stack:
• 5+ years in full-stack development with TypeScript/Node.js, Nest.js
• Frontend experience with React
• Relational databases (PostgreSQL or similar), Redis
• Docker, basic CI/CD
Soft skills:
• Self-driven, able to take ownership of projects end-to-end
• Strong problem-solving skills
• English B2+ (C1 preferred)
• Excellent communication - able to translate technical concepts for non-technical stakeholders
Nice-to-have
• Experience with model fine-tuning (LoRA, QLoRA)
• MLOps practices (experiment tracking, model versioning)
• Familiarity with agent frameworks (LangChain, Vercel AI SDK, or similar)
• Experience with GPU infrastructure and model optimization (quantization, inference tuning)
• AWS or other cloud provider (working knowledge)
What we offer
• Projects at the intersection of AI and software engineering
• Opportunity to work with cutting-edge AI tooling and local GPU infrastructure
• Autonomy and ownership over technical decisions
• Hybrid work mode
• Small, collaborative team
• Challenging problems - no boring CRUD work
🔍 Dekoder Ogłoszenia
🔴
drive the development of AI-powered solutions for our clients
Może oznaczać, że będziesz odpowiedzialny za całe procesy AI, od koncepcji po wdrożenie, a nie tylko za konkretne zadania programistyczne.
🔴
This role bridges two worlds: solid full-stack engineering and practical AI/ML implementation.
Oczekuje się od Ciebie biegłości zarówno w tradycyjnym tworzeniu aplikacji webowych, jak i w praktycznym zastosowaniu uczenia maszynowego.
🟡
design, build, and ship products that leverage LLMs, RAG, and other AI techniques to solve real business problems.
Twoja praca będzie skupiona na tworzeniu gotowych produktów, a nie tylko na badaniach czy prototypach.
🔴
Deploying, configuring, and optimizing LLMs (both cloud APIs and self-hosted)
Może oznaczać, że będziesz musiał zajmować się infrastrukturą i zarządzaniem modelami, a nie tylko ich wykorzystaniem.
🟢
work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy.
Oczekuje się od Ciebie aktywnego udziału w definiowaniu i realizacji celów biznesowych klientów, a nie tylko wykonywania zleconych zadań.