Senior Backend Engineer - Scalable SaaS Microservices

Classpass; United States; Remote; USD 151,000 - 200,000; Full time

Job summary

ClassPass is seeking a senior backend engineer to build and operate backend systems powering a large-scale SaaS platform. You will partner with Product, Design and QA to bring ideas to production with a reliable and scalable stack.

You’ll design robust services, promote testing and monitoring, and contribute to architecture decisions while ensuring high performance and clean interfaces across microservices.

Qualifications

• 8+ years of backend experience building and operating large-scale SaaS systems.
• Proficiency in Java, Kotlin, C#, JavaScript, and React.
• Experience designing microservices and backend services.
• Strong SQL and relational database skills.
• Familiarity with SDLC, design patterns, and Agile methodologies.
• Clear communication across teams and roles.

Responsibilities

• Build and evolve backend systems powering ClassPass, partnering with Product, Design, and QA to take ideas from concept to production.
• Deliver features from ideation through deployment with measurable outcomes.
• Design and develop robust backend services and APIs.
• Promote engineering excellence via automated testing, code reviews, and monitoring.
• Reduce unnecessary complexity while maintaining reliability and quality.
• Contribute to architecture decisions and cross-service interactions.
• Improve observability and resilience through proactive risk identification.

Skills

Java

Kotlin

C#

Javascript

React

Microservices

New Relic

Kibana

SQL

Agile

Communication

Tools

New Relic

Kibana

Job description

ClassPass is seeking a senior backend engineer to build and operate backend systems powering a large-scale SaaS platform. You will partner with Product, Design and QA to bring ideas to production with a reliable and scalable stack.

You’ll design robust services, promote testing and monitoring, and contribute to architecture decisions while ensuring high performance and clean interfaces across microservices.