Senior Backend Engineer, Content AI & NLP

Peloton Interactive; Warszawa; On-site; PLN 180,000 - 240,000; Full time

Job summary

Peloton Interactive is seeking a mid level Software Engineer to design and develop scalable microservices powering core features across Bike, Tread, Strength, and Digital. You will join the Content AI Team, training and hosting NLP/ASR models, and deliver services for search, voice, and subtitles to enable international growth.

You will collaborate with product, design, and QA, write robust code, and participate in CI/CD, monitoring, and on-call activities to ensure reliable platform expansion.

Qualifications

• BS/MS in CS/Engineering or related field.
• 3+ years of backend cloud application experience.
• Proficient in Kotlin or Python and Spring Boot.
• Experience with REST, gRPC, or GraphQL.
• Familiar with PostgreSQL and NoSQL databases.
• Experience with Docker and Kubernetes.
• Knowledge of AWS services and CI/CD tools.
• Strong in observability and performance optimization.
• Able to work in a fast-growing, cross-functional environment.

Responsibilities

• Develop and maintain business-critical APIs and services with a focus on high availability, low latency, security and scalability under guidance from senior engineers.
• Provide updates to team leaders and participate in sprint planning and team meetings.
• Write understandable, well-tested code with an eye towards maintainability and scalability.
• Contribute to reusable code, libraries, and patterns for use across teams.
• Implement solutions to scale services while meeting business and product requirements, often under supervision.
• Use monitoring/profiling/tracing and load-testing tools to identify bottlenecks and optimize queries and caching.
• Follow best practices in CI/CD, logging and observability to ensure reliable releases.
• Participate in on-call rotations and incident response.

Skills

Kotlin

Python

Spring Boot

REST / gRPC / GraphQL

Databases: PostgreSQL

NoSQL: DynamoDB/Mongo

AWS

Docker

Kubernetes

Observability: Datadog

CI/CD

Education

MS or BS degree in Computer Science or Engineering

Job description

Peloton Interactive is seeking a mid level Software Engineer to design and develop scalable microservices powering core features across Bike, Tread, Strength, and Digital. You will join the Content AI Team, training and hosting NLP/ASR models, and deliver services for search, voice, and subtitles to enable international growth.

You will collaborate with product, design, and QA, write robust code, and participate in CI/CD, monitoring, and on-call activities to ensure reliable platform expansion.