Senior Back End Engineer – Ruby on Rails, GO
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Job Description
Senior backend engineer building Ruby on Rails and Go services for PrizePicks’ daily fantasy sports platform. Supporting microservices migration, internal operational APIs, reliability, and engineering mentorship.
Responsibilities:
- Design and implement backend features across Rails-based services and Go microservices, from API contracts through deployment and monitoring
- Help decompose the Rails monolith into independently deployable services and contribute to extraction and architecture decisions
- Build and maintain backend APIs for projection management, risk dashboards, alerting, and member operations
- Lead complex feature design and implementation from product requirements through production deployment
- Diagnose performance bottlenecks, optimize database queries, and improve backend resilience under load
- Propose and drive service architecture decisions, evaluate tradeoffs, and communicate recommendations
- Mentor Software Engineers I, II, and III through code reviews, pairing, and technical guidance
- Improve team practices for code quality, testing, observability, and deployment
- Collaborate with Product Managers, QA, and engineering teams to translate operational goals into technical solutions
- Participate in the on-call rotation, contribute to root cause analysis, and improve long-term reliability
Requirements:
- 5–8 years of professional software engineering experience with meaningful production experience in both Ruby on Rails and Go
- Proven record owning and delivering complex, multi-component features in a team environment
- Experience with monolith-to-microservices migrations, service extraction, dual-write patterns, and backward compatibility
- Experience designing and operating distributed systems or event-driven architectures
- Strong Rails proficiency and idiomatic Ruby development
- Strong Go proficiency and production-quality, well-tested Go development
- PostgreSQL skills including schema design, query optimization, and performance tuning
- Understanding of REST and/or gRPC API design and service boundary design
- Experience with asynchronous workflows, background job processing such as Sidekiq, message queues, or event streaming
- Experience with Docker and Kubernetes
- Familiarity with CI/CD pipelines and deployment automation
- Understanding of observability practices including logging, metrics, and tracing
- Comfortable working autonomously on ambiguous problems
- Able to communicate technical decisions to technical and non-technical stakeholders
- Able to context-switch between deep technical work and collaborative planning
- Experience working in a fully remote engineering organization
- Must be authorized to work for any employer in the U.S.; employment visa sponsorship is unavailable
Benefits:
- Company-subsidized medical, dental, & vision plans
- 401(k) plan with company match
- Annual bonus
- Flexible PTO to encourage a healthy work/life balance (2 weeks STRONGLY encouraged!)
- Generous paid leave programs, including 16-week paid parental leave and disability benefits
- Workplace flexibility and modern work schedules focused on getting the job done, not hours clocked
- Company-wide in-person events and team outings
- Lifestyle enhancement program
- Company equipment provided (Windows & Mac options)
- Annual performance reviews with opportunities for growth and career development
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