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Middle Developer with AI experience (AdTech)


Job Location:

Wrocław - Poland

Monthly Salary: Not provided by the employer
Posted: 26 September 2026 (8 hours ago)
Application Deadline: 24 December 2026
Vacancies: 1 Vacancy

Job Summary

  • Develop and maintain high-performance Back-end microservices and AI-enabled services using TypeScript and
  • 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

Qualifications :

  • 3 years of commercial experience as a Back-end Developer or AI Software Developer
  • Strong hands-on experience with TypeScript and
  • 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

Additional Information :

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

Remote Work :

Yes


Employment Type :

Full-time


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At Sigma Software, we are involved with the client’s team to contribute to the design and development of a technical solution for their tokenized domain reservation platform. We started by assigning a software architect to design the smart contracts and integrate blockchain into the s ... View more

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