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

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
Experience as a Lead Back-End Developer will be a plus

Senior TypeScript/Node.js Developer

Key skills