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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on building production AI-powered features for an international product. The technical stack includes Node.js and AI/ML components in Python, with integration of LLMs and external AI services. Responsibilities include designing scalable backends and APIs, building and integrating AI features, running experiments and evaluations, turning prototypes into production-ready solutions, and monitoring and optimizing deployed systems. Offered long-term cooperation, remote work and benefits: private medical care, Multisport and training budget.
from: 29 September 2026
to: 29 October 2026
35 000 - 35 000 złnet (+ VAT)/ mth.B2B contract (full-time)
Offer parameters
level:senior
working mode:remote
location:Kraków, Lesser Poland
Kraków, Lesser Poland
Requirements
Expected technologies
Node.js
Python
Optional technologies
AWS
Our requirements
- Strong commercial experience with Node.js and backend development
- At least 2 years of commercial experience working with AI/ML solutions
- Professional experience with Python
- Hands-on experience building and integrating AI-powered functionality into real-world products
- Experience taking AI experiments or prototypes into production
- Ability to research different technical approaches, test them and make decisions based on results
- Understanding of how to evaluate AI-based solutions, including quality, accuracy, latency and cost
- Strong understanding of backend architecture, APIs and integrations
- Ability to independently own technically complex features from idea to production
Optional
- Experience with LLMs, RAG, AI agents or GenAI applications
- Experience working with major AI model providers and APIs
- Experience with AWS or other cloud platforms
- Experience with AI observability, evaluation frameworks or production monitoring
- Previous experience in travel technology, hospitality, marketplaces or booking platforms.
Your responsibilities
- Design and develop scalable backend services and APIs using Node.js
- Build and integrate AI-powered features into production systems
- Research different AI approaches, run experiments and evaluate results to identify the most suitable solutions
- Develop Python-based components for AI/ML workflows, data processing and experimentation
- Build prototypes and transform successful approaches into reliable, production-ready solutions
- Integrate LLMs, AI models and external AI services with existing backend systems
- Define evaluation methods and metrics to measure the quality and performance of AI solutions
- Work closely with engineering and product teams on architecture and implementation decisions
- Take ownership of features from technical design and experimentation through implementation and deployment
- Monitor and improve existing solutions based on production results, performance and user feedback
About the project
We are looking for a Senior Node.js Engineer with strong commercial experience in AI to build and develop production-ready, AI-powered features. The role combines strong backend engineering in Node.js with hands-on work on AI solutions, experimentation, evaluation and integration into a live product.
What we offer
- Long-term cooperation on an international project.
- Fully remote work.
- A collaborative environment with experienced engineers.
- Private medical care.
- Multisport card.
- Flexible working arrangements.
Benefits
- sharing the costs of sports activities
- private medical care
- sharing the costs of professional training & courses
- remote work opportunities
- flexible working time
BRAVER IT SPÓŁKA AKCYJNA
As Venture Building, we create profitable technology companies from scratch. We collaborate with partners who share similar aspirations and are open to leveraging the potential of their networks, cultivated over years. We regularly launch new projects founded on long-term, amicable relationships with our associates.
Senior Node.js Engineer with AI
35k–35k zł / mth. (B2B)
I apply to:
BRAVER IT SPÓŁKA AKCYJNA
Kraków, Lesser Poland
Need more information?
- Make sure the body of the offer doesn’t already include what you’re looking for.
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