Staff Back-End Engineer, Taskrabbit

• 7+ years professional backend engineering, with demonstrated Staff-level impact (leading complex domains, influencing multiple teams)
• Deep expertise in building and evolving large Ruby on Rails applications
• Strong SQL and data modeling for financial use cases (Postgres, Snowflake)
• Hands-on experience with async/event-driven systems (Kafka) handling financial data(idempotency, ordering)
• Proven track record designing and owning observability/alerting for critical systems
• Mastery in production debugging, modernization, and RSpec testing for financial correctness
• Excellent communication, ability to influence without authority, and a strong ownership mentality for systems handling money and trust
• Familiarity with microservice and event-driven architectures at scale

Desirable

• We're seeking a Staff Backend Engineer to join our remotely distributed Commerce team, someone who doesn't just build, but raises the quality bar across our entire ecosystem
• You'll be instrumental in shaping the reliability, performance, and maintainability of our critical financial infrastructure, directly impacting how our customers and taskers experience money
• Our Commerce team is at the heart of our operations, building and maintaining the billing, payment processing, payouts and taxes/fees that make money simple and accessible
• As a Staff Software Engineer, you'll dive deep into our systems, not only delivering new features but also acting as a critical advocate for engineering rigor and operational excellence
• You'll work independently and collaboratively in our team, tackling complex challenges and leaving a lasting impact on our codebase and processes
• Architect: Define the multi-quarter technical roadmap for Commerce domains (payments, payouts, billing) along with the engineering manager and architects - driving strategy, addressing tech debt, and evolving scalable system architecture, APIs, and data models for financial correctness
• Tech Lead: Lead complex, cross-team technical initiatives involving Taskrabbit, Stripe, and Sovos. Collaborate across engineering, finance, and product to align on architecture and manage dependencies
• Solver: Translate ambiguous, high-stakes business goals into clear technical strategies, designs, and experiments
• Operational Excellence: Elevate reliability and observability (Datadog, Kafka) for money-flow systems. Own complex production debugging and drive systemic fixes. Improve incident response and automate reconciliation workflows
• Multiplier: Serve as a Ruby on Rails subject-matter expert, champion high-quality testing (RSpec) for financial systems, mentor engineers, and produce durable technical documentation
• Champion Spec-Driven Development (SDD): Lead the adoption of Spec-Driven Development (SDD) with AI tools, ensuring engineers consistently turn well-defined specs into robust Ruby on Rails implementations and comprehensive RSpec unit and integration tests