We are looking for a Senior Software Developer  to join the AdTech Competence Center at Sigma Software.

You can become a part of a 300+ team of experts in the AdTech domain by joining our Stellar team.

What is Stellar? It’s a community, a network, and a dedicated business unit at Sigma Software that specializes in advertising technology solutions. Over the years, we’ve had the opportunity to work with some of the largest AdTech companies in the world. We brought tons of AdTech startups from an idea to a thriving business. Since 2008, we’ve worked with advertising technology businesses to help them envision, build, and support their technology. 

We are building a Competence Center where we stay focused on exploring our domain to become best in class specialists in the industry.

Are you ready for the challenge? Let’s do it together!

CUSTOMER

Our Customer is an international AdTech company that develops modern, data-driven, and privacy-safe advertising solutions. The team develops scalable, high-load systems using AWS and modern data technologies.

Design, implement, and maintain Back-end services and data-driven APIs using Python
Work with AWS S3, MongoDB, and DynamoDB for data storage and retrieval
Optimize services for scalability, performance, and fault tolerance
Integrate Back-end systems with internal and external APIs
Write clean, maintainable, and well-documented code
Participate in code reviews, design discussions, and system improvements
Collaborate with  data engineering teams to ensure smooth deployments

5+ years of professional experience as a Python Developer
Strong experience with Python frameworks and libraries (FastAPI, Flask, or similar)
Solid knowledge of SQL and NoSQL databases (MongoDB, DynamoDB)
Experience with AWS (S3, Lambda, EC2, DynamoDB).
Understanding of API design, microservices, and data integration patterns
Strong debugging and performance optimization skills
Upper-Intermediate level of English

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