Principal Engineer, Backend Architecture, Reliability – .NET, Java
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Job Description
Principal Engineer focusing on backend architecture and reliability at CargoSprint. Drive modernization of core backend systems for improved stability and resilience while mentoring senior engineers.
Responsibilities:
- Lead architecture and implementation to improve stability and reliability across core backend systems.
- Drive modernization: reduce legacy debt, simplify services, and migrate to scalable patterns with minimal customer impact.
- Establish reliability guardrails: service ownership, operational runbooks, and measurable targets for availability and performance.
- Partner with DevOps/SRE and application teams to improve observability, incident response, and postmortem follow-through.
- Identify bottlenecks and failure modes; deliver measurable improvements in latency, throughput, and availability.
- Create reusable patterns and reference implementations (service templates, resilience patterns, data access patterns).
- Mentor senior engineers and tech leads; raise standards through design docs, reviews, and coaching.
Requirements:
- 10+ years building production backend systems; demonstrated impact at Staff/Principal scope.
- Deep experience in .NET (C#) and/or Java service ecosystems, including performance tuning and production operations.
- Proven track record improving reliability (incident reduction, MTTR improvement, uptime).
- Strong experience modernizing legacy systems: incremental migrations, deprecation plans, and risk-managed rollouts.
- Distributed systems fundamentals and resilience patterns (timeouts, retries, circuit breakers, idempotency).
- Strong operational discipline: logs/metrics/traces, alerting strategy, and root cause analysis.
- Clear communicator who can align multiple teams and drive decisions.
- Nice to have Payments, billing, invoicing, or other high-volume transactional domains.
- Event-driven architecture experience (queues/streams; async workflows).
- Cloud cost and performance optimization experience at scale.
- Logistics, cargo, or supply chain experience.
- Spanish language proficiency.
Benefits:
- Health and Wellness: Medical, dental, and vision plans for you and your family
- Future-Ready: 401(k) with company match
- Work Life Balance: Generous flexible PTO program and paid holidays
- Grow With Us: Professional development opportunities
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