Senior AI-Driven TypeScript & Node.js Backend Engineer

Sigma Software

United States

Remote

USD 130,000 - 170,000

Full time

5 days ago

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Job summary

Sigma Software is seeking a Middle/Senior AI & Back-End Developer to transform a global AdTech product into an AI-enabled platform. This remote-friendly role emphasizes cloud-native microservices with TypeScript and Node.js, using AWS serverless tech and AI capabilities.

You’ll implement AI-powered features, ensure tenant data isolation, work with OpenAI APIs, GraphQL, and REST, and contribute to reusable libraries and engineering standards in a distributed international team.

Qualifications

7+ years of commercial experience as a Back-end Developer.
Hands-on experience with TypeScript and Node.js.
Experience building API-first microservice architectures.
Experience integrating AI services, LLM APIs, or AI workflows.
Experience with AWS serverless technologies (Lambda, API Gateway, DynamoDB, EventBridge).

Responsibilities

Develop and maintain high-performance back-end microservices and AI-enabled services.
Design and integrate AI-powered features and LLM-based workflows.
Build scalable serverless solutions with AWS Lambda and API Gateway.
Collaborate on API-first architecture and OpenAPI specs.
Ensure tenant data isolation and comply with AdTech data models.
Contribute to reusable libraries, AI integration patterns, and standards.
Participate in code reviews focused on performance and reliability.
Translate product and AI requirements into scalable technical solutions.