[Hiring] Back-End Developer @Sigma Software

Role Description

Are you a skilled Back-End Developer with a passion for building scalable, high-performance platforms? Join Sigma Software and contribute to the transformation of a global AdTech product into a modern, API-driven architecture. This is a Middle/Senior-level role with a remote-friendly setup, giving you flexibility while working with cutting-edge technologies.

Key Responsibilities:

• Develop and maintain high-performance microservices using TypeScript and Node.js in a serverless AWS environment.
• Collaborate on API design and maintain OpenAPI specifications.
• Implement scalable solutions with AWS Lambda, API Gateway, DynamoDB, and EventBridge.
• Ensure strict tenant data separation and adherence to established AdTech data models.
• Contribute to shared libraries, reusable templates, and engineering best practices.
• Participate in code reviews focusing on performance, reliability, and observability.
• Translate product requirements into technical specifications.
• Support the evolution of the platform toward standardization and reusability.

Qualifications

• 3+ years of production experience as a Back-End Developer.
• Solid hands-on skills with TypeScript and Node.js.
• Experience with API-first microservice architectures.
• Familiarity with AWS serverless tools (Lambda, API Gateway, DynamoDB, EventBridge).
• Understanding of RESTful and GraphQL APIs.
• Knowledge of multi-tenant architecture and logical data isolation.
• Interest in AdTech concepts and workflows.
• Upper-Intermediate English level.

Requirements

• Experience with Infrastructure as Code tools (CloudFormation, Terraform) will be a plus.
• Knowledge of CI/CD pipelines and deployment automation will be a plus.
• Familiarity with event-driven architectures will be a plus.
• Understanding of observability tools (CloudWatch, X-Ray, etc.) will be a plus.

Benefits

• Work on a platform trusted by top-tier publishers.
• Gain exposure to advanced serverless architectures.
• Be part of a team that encourages professional growth and continuous learning.