Senior TypeScript/Node.js Developer (Swedish Ad Platform)

Sigma Software , Kyiv, 2026-03-27 03:34:51
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Описание

Job Description

  • Own and govern API design by defining and maintaining strict OpenAPI specifications before implementation begins
  • Design and implement high-performance microservices using TypeScript and Node.js within a serverless AWS architecture
  • Drive FinOps excellence by architecting solutions with AWS Lambda, API Gateway, DynamoDB, and EventBridge to achieve a Scale-to-Zero cost model
  • Enforce logical isolation patterns across services, ensuring strict tenant data separation via JWT policies and Row-Level Security
  • Maintain adherence to the Ad Context Protocol (AdCP) across all data models for consistent AdTech data language
  • Develop reusable “Golden Path” templates, shared libraries, and engineering best practices
  • Conduct rigorous code reviews focusing on latency (<200ms), availability (99.99%), and observability
  • Translate product and commercial requirements into scalable technical specifications
  • Contribute to evolving the overall platform architecture toward standardization and reusability

Qualifications

  • At least 7 years of production experience as a Back-End Developer
  • Strong hands-on expertise with TypeScript and Node.js
  • Proven experience designing API-first microservice architectures
  • Deep expertise in AWS serverless ecosystem: Lambda, API Gateway, DynamoDB, EventBridge, and IaC tools (CloudFormation or Terraform)
  • Solid AdTech domain knowledge, including advertising data models and workflows
  • Extensive experience designing RESTful and GraphQL APIs with versioning, backward compatibility, and documentation
  • Strong understanding of multi-tenant architecture and logical data isolation patterns
  • Experience building standardized platforms for multiple clients instead of custom solutions
  • Strong focus on performance, reliability, and observability in distributed systems
  • At least an Upper-Intermediate level of English

WILL BE A PLUS

  • Experience as a Lead Back-End Developer


Additional Information

PERSONAL PROFILE

  • Proactive and detail-oriented with a strong sense of ownership
  • Enjoys solving complex architectural challenges
  • Thrives in collaborative, cross-functional teams
  • Committed to delivering high-quality solutions meeting demanding performance and reliability standards
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Карточка вакансии:

  • Должность Senior TypeScript/Node.js Developer (Swedish Ad Platform)
  • Размещено: 2026-03-27 03:34:51
  • Город , Kyiv,
  • Зарплата:
  • Компания: Sigma Software