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Middle/Senior Typescript/Node.js Developer with AI experience (AdTech) @ Sigma Software

Wrocław, Lower Silesian Voivodeship, plRemoteFull-timeJob reference REF4188F
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About this role

  • Develop and maintain high-performance Back-end microservices and AI-enabled services using TypeScript and Node.js
  • Design, implement, and integrate AI and LLM-powered platform features
  • Build scalable serverless solutions using AWS Lambda, API Gateway, DynamoDB, and EventBridge
  • Collaborate with cross-functional teams on API-first architecture and OpenAPI specifications
  • Ensure tenant data isolation and compliance with established AdTech data models
  • Contribute to reusable libraries, templates, AI integration patterns, and engineering standards
  • Participate in code reviews focused on performance, reliability, observability, and service quality
  • Translate product and AI feature requirements into scalable technical solutions
  • Support the platform transformation toward automation, standardization, and intelligent reusability
  • Contribute to continuous improvement initiatives and technical decision-making processes
  • 7+ years of commercial experience as a Back-end Developer
  • Strong hands-on experience with TypeScript and Node.js
  • Experience building API-first microservice architectures
  • Practical experience integrating AI services, LLM APIs, or AI-assisted workflows
  • Hands-on experience with AWS serverless technologies including Lambda, API Gateway, DynamoDB, and EventBridge
  • Understanding of RESTful and GraphQL APIs
  • Knowledge of prompt engineering concepts and AI integration approaches
  • Understanding of multi-tenant architectures and logical data isolation principles
  • Interest in AdTech products, automation, and AI-driven optimization
  • Upper-Intermediate or higher English level

WILL BE A PLUS

  • Experience with ML and AI experimentation projects
  • Exposure to recommendation systems or data intelligence platforms
  • Experience working with vector databases
  • Familiarity with Infrastructure as Code tools such as Terraform or CloudFormation
  • Understanding of observability and monitoring practices in distributed systems
  • Experience working with scalable cloud-native architectures

PERSONAL PROFILE

  • Strong analytical and problem-solving skills
  • Proactive and ownership-driven mindset
  • Passion for modern Back-end engineering and AI technologies
  • Ability to collaborate effectively within distributed international teams
  • Interest in innovation, experimentation, and continuous learning
  • Strong communication skills and attention to engineering quality

Skills

BU004 (TLTaT)EngineeringMid-Senior LevelInformation Technology And Services

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