Senior Software-Engineer( Python & Golang)

• Build and maintain production services: design, implement, and operate reliable, well-tested backend services and APIs in Python and Go. Refactor or rewrite components when needed to improve performance, stability, and maintainability.
  
• Build ML/AI infrastructure: create data pipelines and services that support model training, evaluation, and deployment on large image datasets.
  
• Automate and ship: set up CI/CD, testing, and infrastructure-as-code to keep releases smooth and predictable across environments.
  

Requirements

• At least 5 years of production experience with Python and solid Golang building and running services.
  
• Deep understanding of microservices, distributed systems, and API design (REST/gRPC), with attention to clean contracts and failure modes.
  
• Hands-on experience with SQL and NoSQL databases, sound schema design and performance tuning, and familiarity with object storage (e.g., S3).
  
• Proven experience deploying and operating on Kubernetes and strong Unix/Linux fundamentals.
  
• Practical experience with AWS core services (EKS, EC2, S3, RDS, IAM, CloudWatch) and cost-aware architectures.
  
• Strong engineering practices including CI/CD, automated testing, code reviews, documentation, and a security-first mindset.
  
• Ability to lead technical initiatives, communicate trade-offs clearly, and collaborate effectively across multidisciplinary teams.
  

Benefits

• Hybrid work mode ( 1-2 days/per week from customer office in Warsaw)
  
• Professional training programs – including Udemy and other development plans
  
• Work with a team that’s recognized for its excellence. We’ve been featured in the Deloitte Technology Fast 50 & FT 1000 rankings. We’ve also received the Great Place To Work® certification for five years in a row