Staff Software Engineer

Position Summary

Build Distributed Systems at Global Scale — Join Harness Feature Management & Experimentation (FME)

Last year, the Harness FME platform evaluated 4 trillion feature flags. For most people, that’s just an impressive number. For a scale-minded builder and engineering leader, it represents one of the most demanding challenges in distributed systems.

To power this scale, we’ve built:

• Massive global concurrency supporting millions of real-time decisions.
• Millisecond-level latency through a globally distributed feature flag delivery network.
• Tier-one enterprise reliability trusted by the world’s most sophisticated companies.

About the Role:

• Design and develop scalable backend services using Java/Golang
• Architect and maintain distributed microservices-based systems.
• Build reliable APIs and internal platform services using REST(gorilla.mux, alice.chains) and gRPC. 
• Optimize system performance across compute, memory, storage, and networking layers.
• Work with PostgreSQL, Redis, S3, and AWS cloud infrastructure.
• Deploy and manage cloud-native applications using Docker and Kubernetes.
• Troubleshoot complex production and infrastructure-level issues.
• Drive engineering best practices, code quality, and system reliability.
• Mentor engineers and contribute to technical leadership across teams.
• Collaborate cross-functionally to deliver scalable and resilient solutions.

About you

• 8-11 years of software engineering experience with strong proficiency in Go, C++ and Java.
• Deep understanding of computer science fundamentals, including data structures, algorithms, concurrency, memory management, CPU/process architecture, containers, cgroups, and filesystems.
• Strong experience designing and building scalable distributed systems and microservices architectures.
• Hands-on expertise with PostgreSQL (including pgx driver), Redis, and object storage systems such as S3.
• Solid experience working within AWS environments and familiarity with core cloud infrastructure concepts including VPCs, load balancers, auto scaling, and compute instances. Exposure to Azure or GCP is a plus.
• Experience building and operating cloud-native applications using Docker, Docker Compose, Kubernetes, and related orchestration tooling.
• Strong understanding of API design and backend communication patterns, including
• REST APIs, gRPC, and middleware frameworks such as gorilla/mux and alice.
• Proficient with Git-based development workflows and modern software delivery practices.
• Excellent debugging and problem-solving skills, including the ability to diagnose infrastructure, networking, and system-level issues beyond application code.
• Strong communication and collaboration skills with the ability to operate independently in fast-paced engineering environments.
• Proven experience mentoring engineers, driving technical discussions, and leading initiatives across teams

Nice-to-have :

• Prior experience writing security policies for API gateways or load balancers.
• Contributions to open-source projects.

What you will have at Harness

• Experience building a transformative product
• End-to-end ownership of your projects
• Competitive salary
• Comprehensive healthcare benefit
• Flexible work schedule
• Paid Time Off and Parental Leave
• Monthly, quarterly, and annual social and team building events
• Monthly internet reimbursement