Senior Software Engineer, Content AI

We are hiring on behalf of our client a global innovator in fitness and wellness technology. Their mission is to empower people to live fit strong long and happy lives by delivering integrated experiences to millions of members anytime anywhere.

We are looking for a Senior Software Engineer to join the Content AI team in Warsaw. This team applies AI to content-related processes including search voice assistant capabilities subtitles live captions translations metadata tagging and content generation this role you will act as a technical lead within an agile engineering team designing and operating scalable microservices that support AI-powered content features. The focus is on backend engineering production systems and technical leadership rather than building AI models from scratch.

Key takeaways:

Stack: Kotlin Spring Boot REST gRPC GraphQL PostgreSQL/MySQL/DynamoDB/MongoDB Elasticsearch Redis AWS Docker Kubernetes Terraform GitHub Actions Datadog

Salary: 26 000 PLN - 32 000 PLN gross on the Contract of Employment

Working model: Hybrid - 3 days/week from the office

Location: ul. Grzybowska 60 Warsaw

Recruitment process:

• A call with MOTIFE Recruiter
• Hiring Manager screening
• Coding interview
• Panel interviews with the team (coding architecture and cross-collaboration interviews Hiring Manager meeting)

Responsibilities:

• Design develop and operate scalable backend APIs and microservices powering search voice subtitles captions translations and content workflows.
• Lead technical discussions architecture reviews design decisions and task breakdowns within the engineering team.
• Build services with a focus on high availability low latency security scalability and maintainability.
• Work with ML Engineers to integrate hosted NLP ASR and AI models into production backend systems.
• Architect reusable code libraries patterns and standards that can be adopted across teams.
• Use monitoring tracing profiling and load-testing tools to identify bottlenecks and improve production performance.
• Champion engineering best practices including CI/CD test automation feature toggles logging monitoring and reliable release processes.
• Mentor engineers through code reviews pair programming technical guidance and incident response leadership.

Requirements:

• 6 years of software development experience building high-performance scalable backend cloud application systems.
• BS or MS degree in Computer Science Engineering Mathematics or a related technical field.
• Strong expertise in Kotlin Python or similar backend programming languages.
• Strong experience with backend frameworks such as Spring Boot Bottle Gunicorn or similar JVM/Python frameworks.
• Experience designing and building APIs using REST gRPC or GraphQL.
• Experience with relational and NoSQL databases such as PostgreSQL MySQL DynamoDB or MongoDB.
• Hands-on experience with AWS Docker Kubernetes CI/CD and infrastructure tooling such as Terraform GitHub Actions or Jenkins.
• Strong understanding of distributed systems Elasticsearch optimization caching observability security performance optimization production troubleshooting and incident response.

Nice to have:

• Experience working on AI-powered products model-serving systems or backend services that integrate with ML models.
• Experience with NLP ASR voice assistants chatbots search platforms live captions subtitles translations or content metadata workflows.

What we offer:

• 100% paid medical care
• Multisport
• Creative tax (KUP)
• Home office allowance
• MacBook Pro

Apply now

If this sounds like your next step wed love to hear from you! Please apply via our careers page and submit your CV in English.

Required Experience:

Senior IC