Sr. Software Engineer, Content AI

United States Digital Space LLC; Poland; On-site; PLN 258,000 - 388,000; Full time

Job summary

Peloton is seeking a Senior Software Engineer to act as technical lead for an agile team, focusing on scalable microservices powering core features across platforms. The role emphasizes collaboration with Product, Design, and QA, delivering APIs for search, voice, and captions, and guiding junior engineers through code reviews and architectural decisions.

You will design, develop, test, deploy, and monitor services, while driving reliability, performance, and scalable patterns across teams in a

Qualifications

• 6+ years of software development experience building backend systems.
• Experience designing scalable microservices and APIs.
• Strong knowledge of security, testing, and performance optimization.
• Experience mentoring junior engineers and guiding teams.

Responsibilities

• Design, develop and operate business-critical APIs and services with high availability and low latency.
• Mentor junior engineers and communicate with TPM/Product.
• Write clean, well-tested code prioritizing maintainability.
• Architect and build reusable components and libraries across teams.
• Propose and implement scalable solutions to meet product requirements.
• Utilize monitoring and profiling tools to identify bottlenecks and optimize performance.

Skills

Kotlin

Python

Spring Boot

REST/gRPC/GraphQL

Distributed systems

AWS

Docker

Kubernetes

Performance optimization

Mentoring

Education

MS/BS in CS/Engineering

Tools

PostgreSQL

MySQL

DynamoDB

Elasticsearch

Job description

ABOUT THE ROLE

The Senior Software Engineer acts as the technical lead for an agile team, focusing on the design and development of scalable microservices for the company's core features across all platforms (Bike, Tread, Strength, and Digital). The Content AI Team is responsible for training and hosting various models in the domains of Natural Language Processing (NLP) and Automatic Speech Recognition (ASR). This role is highly collaborative, requiring close partnership with Product, Design, and QA throughout the development lifecycle. The candidate will be responsible for designing, developing, testing, deploying, and monitoring microservices that specifically power features like search, voice, and captions, which are crucial for platform expansion and international growth. In addition to technical delivery, excellent communication and engineering skills are essential for providing guidance to junior team members and effectively coordinating with other stakeholders, such as Technical Program Managers (TPM).

YOU DAILY IMPACT AT the company

• Design, develop and operate business-critical APIs and services with a focus on high availability, low latency, security and scalability

• Mentor junior engineers in the team and communicate effectively with TPM and Product

• Write understandable, well tested code with an eye towards maintainability and scalability

• Architect and build reusable code, libraries, and patterns for use across teams

• Propose, experiment, and implement solutions to scale services while meeting business and product requirements.

• Leverage production monitoring/profiling/tracing and load testing tools to discover bottlenecks and using techniques such as data modeling, query optimization, and caching to address the bottlenecks

• Lead technical discussions during architecture meetings, design reviews, and task breakdown

• Identify common patterns as well as develop and foster development of reusable components and standards across teams

• Champion and implement industry best practices such as feature toggles, CI/CD, test automation, logging, and monitoring in order to ensure confidence in our release process

• Mentor and coach engineers through code reviews, pair programming, and technical guidance

• Participate in on-call rotations and lead incident response efforts to maintain system reliability

• Collaborate and partner with cross-functional team members from Product, Design, and QA whilst serving as a domain expert in your area

YOU BRING TO the company

• MS or BS degree in fields such as Computer Science, Engineering or Mathematics

• 6+ years of software development experience building high-performance, highly scalable backend cloud application systems

• Expertise in Kotlin, Python, or similar languages

• Strong experience with Spring Boot, Bottle/Gunicorn, or similar backend web frameworks (JVM or Python)

• Experience with both relational (e.g. PostgreSQL, MySQL) and NoSQL (e.g. DynamoDB, Mongo) databases

• Hands-on experience with Elastic Search query optimization and scaling

• Experience with caching systems such as Memcache, Redis

• Experience with request processing such as REST, gRPC, or GraphQL

• Proven ability to work in high growth, fast-paced environments and adapt to change

• Experience with Docker and Kubernetes for containerization and orchestration

• Experience with AWS services (DynamoDB, S3, ECR, IAM, Lambda, SQS) and cloud infrastructure design

• Experience with deployment tooling such as Terraform, GitHub Actions, Jenkins

• Experience with observability and monitoring tools such as Datadog or similar APM solutions

• Strong understanding of API design principles, security best practices, and performance optimization

• Experience with production support, leading incident response, and troubleshooting complex distributed systems

• Experience collaborating with and influencing cross-functional team members from Product, Design, and QA

BONUS

• Experience with building personal voice digital assistants or chatbots

• Experience with building search platforms, personalizing search and discovery

• Worked with automatic speech recognition (ASR)

ABOUT the company:

the company (NASDAQ: PTON) provides Members with expert instruction, and world class content to create impactful and entertaining workout experiences for anyone, anywhere and at any stage in their fitness journey. At home, outdoors, traveling, or at the gym, the company brings together innovative hardware, distinctive software, and exclusive content. Founded in 2012 and headquartered in New York City, the company has millions of Members across the US, UK, Canada, Germany, Australia, and Austria. For more information, visit www.onepeloton.com.

the company is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws. Equal employment opportunity has been, and will continue to be, a fundamental principle at the company, where all team members, applicants, and other covered persons are considered on the basis of their personal capabilities and qualifications without discrimination because of race, color, religion, sex, age, national origin, disability, pregnancy, genetic information, military or veteran status, sexual orientation, gender identity or expression, marital and civil partnership/union status, alienage or citizenship status, creed, genetic predisposition or carrier status, unemployment status, familial status, domestic violence, sexual violence or stalking victim status, caregiver status, or any other protected characteristic as established by applicable law. This policy of equal employment opportunity applies to all practices and procedures relating to recruitment and hiring, compensation, benefits, termination, and all other terms and conditions of employment. If you would like to request any accommodations from application through to interview, please email: [e-mail].

At the company, we embrace technology, including AI, to enhance productivity and accelerate innovation in the work we do for our members. However, in our hiring process, our priority remains in getting to know you and your unique qualifications. To ensure a fair and equitable process, we do not permit the use of AI tools during any stage of the application and interview process. In considering you as an applicant, we want to understand your skills, experiences, and motivations without mediation through an AI system. We also want to directly assess your communication skills without the use of an AI tool.

Qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act, the City of Los Angeles Fair Chance Initiative for Hiring Ordinance and the San Francisco Fair Chance Ordinance, as applicable to applicants applying for positions in these jurisdictions.

*Please be aware that fictitious job openings, consulting engagements, solicitations, or employment offers may be circulated on the Internet in an attempt to obtain privileged information, or to induce you to pay a fee for services related to recruitment or training. the company does NOT charge any application, processing, or training fee at any stage of the recruitment or hiring process. All genuine job openings will be posted here on our careers page and a*