
Senior Node.js Engineer (AWS Serverless)
Altamira
Warsaw, Mazowieckie, Poland
Information Technology, Engineering
Altamira service delivery teams currently span Slovakia, Ukraine, and the Middle East, and we have ambitions to expand our footprint to meet the growing demand across Europe and into our primary growth markets in the UK and the US. In terms of industry verticals, we are focused on EdTech, Fintech, eCommerce, and Pharma.
As a fully remote company, we welcome talented individuals seeking hourly-based freelance opportunities
We are currently seeking a skilled Senior Node.js Engineer (AWS Serverless) on behalf of our client - a specialized German consulting firm focused on the energy and financial markets.
Our client provides high-end advisory and technology services, helping their partners navigate the complexities of energy trading, risk management, and digital transformation. Their work combines deep industry-specific expertise with a commitment to high-quality software engineering. By joining this project, you will be part of a team that values architectural excellence and high-end technical solutions. We are building a large-scale cloud-based portal in the energy domain, focused on digitalizing end-to-end processes for renewable energy management.
Project Goal
Rewrite legacy project: You will be responsible for modernizing and rebuilding an existing legacy system using a modern tech stack.
Requirements
Core Technical Expertise:
- Strong experience with Node.js and TypeScript.
- Several years of hands-on experience with AWS.
- Critical: Extensive experience with AWS Serverless and serverless architecture.
- Proficiency in core AWS services: Lambda, DynamoDB, SQS, S3, Cognito, and CloudWatch.
- Strong experience in designing REST APIs.
- Solid understanding and experience with event-driven architectures.
- Experience implementing Infrastructure as Code (IaC) using CloudFormation or the Serverless Framework.
- Knowledge of OpenSearch is considered an advantage.
- Experience with CI/CD pipelines (Azure DevOps is a major plus).
- Proven ability in monitoring and troubleshooting production systems.
- Expert knowledge of Git and professional code review practices.
- Previous experience in the Energy, Utilities, or Trading domains is highly valued.
- Backend Development: Develop and maintain high-performance backend services using the AWS Serverless stack.
- API Design: Architect and implement scalable REST APIs to support growing business needs.
- Infrastructure: Design and deploy robust Infrastructure as Code solutions.
- Automation: Work closely with CI/CD pipelines and drive deployment automation.
- System Support: Actively monitor, troubleshoot, and support production systems to ensure maximum uptime.
- Cross-functional Collaboration: Collaborate effectively with frontend and DevOps teams to deliver end-to-end solutions.
- Recruiting Interview -> 30-45 min
- Technical Interview -> 1-1,5h
- Client Interview (optional) -> up to 1h
- Reference Check
- Offer
We do believe that the success of altamira.ai is impossible without the success of our Talents and the success of our Clients!
About the company
Company website•Information Technology & Services
Altamira is your zero headaches software partner.
The company was originally founded to change the way offshore software development is done. We saw that there were many good small-to-medium software houses that had niche expertise and top talent. The challenge they had was creating a joined-up service that led to the highest quality software and a great service for western customers and larger, complex organisations. We’ve grown into a professional services consultancy, and we are on a mission to provide AI-powered solutions that help you stay ahead of the curve.
At Altamira, we don’t just solve problems - we uncover strong AI use cases in process automation that drive real cost savings and efficiency gains. Through our close collaboration, we help build your organisation’s capabilities, ensuring knowledge transfer to realise the full potential of the technologies we introduce. These small wins build confidence to tackle core activities with AI-based solutions that create serious impact: improved efficiency, stronger business outcomes, and talent development that powers your future.
Great software, zero headaches.