Software Engineer - SDK

Harness is the AI Software Delivery Platform company, led by technologist and entrepreneur Jyoti Bansal (founder of AppDynamics, acquired by Cisco for $3.7B). Harness has raised approximately $570M in funding and is valued at $5.5B, backed by leading investors including Goldman Sachs, Menlo Ventures, IVP, Unusual Ventures, Citi Ventures, and more. As AI accelerates code creation, the real bottleneck has shifted to everything after the code – testing, deployments, application security, reliability, compliance, and cost optimization. Harness brings AI and automation to this “outer loop,” helping teams ship software faster while maintaining security and governance throughout the entire software delivery lifecycle.

Powered by Harness AI and the Software Delivery Knowledge Graph, the Harness Platform applies deep context and intelligent automation across the software delivery lifecycle with governance and policy-driven controls embedded throughout the platform.

Over the past year, Harness powered over 185M deployments, 82M builds, 18T flag evaluations, 8M security scans, 9.1B optimized tests, 3T protected API calls, and helped manage $2.8B in cloud spend — enabling customers like United Airlines, Morningstar, and Choice Hotels to accelerate releases by up to 75%, reduce cloud costs by up to 60%, and achieve 10x DevOps efficiency.

With a global team across 26 offices and 27 countries, Harness is shaping the future of AI software delivery — and we’re looking for exceptional talent to help us move even faster.

Position Summary

As an SDK Engineer in As an SDK Engineer in Harness Feature Management and Experimentation you will take ownership of the development and evolution of our feature flagging SDKs. Harness recently acquired Split.io, and this role represents a unique opportunity to work on the foundational SDKs that power Harness FME’s dynamic configuration and experimentation platform. You’ll collaborate with a tight-knit engineering team to enhance the developer experience across multiple languages and platforms.

About the Role

• Lead feature development of Harness FME’s SDKs (e.g., Go SDK ).
• Contribute to additional SDKs supported by Harness FME across multiple languages ( Harness FME SDKs GitHub ).
• Continuously monitor, profile, and improve performance and load handling of SDKs.
• Collaborate with support teams to address customer needs and translate them into future product improvements.
• Work in a fast-paced environment that supports a highly available, distributed service.

About You

• Experience building high performance services, libraries or applications.
• 8+ years of experience building software
• Proficiency in Golang and experience in at least one major language used for backend development and tooling (e.g., Ruby, Python, .NET)
• Strong understanding of concurrency and thre