Harness is led by technologist and entrepreneur Jyoti Bansal, founder of App Dynamics (acquired by Cisco for $3.7B). The company has raised ~$240M in Series E venture funding, is valued at $5.5B, and backed by top investors including Goldman Sachs, Menlo Ventures, IVP, Google Ventures, J.P. Morgan, Capital One Ventures, Citi Ventures, Service Now, Splunk Ventures and more. Harness is building the industry’s leading AI-powered software delivery platform, enabling teams worldwide to build, test, and deliver software faster, safer, and more reliably. Writing code is only 30–40% of the engineering lifecycle — the rest involves testing, deployments, security, compliance, and optimization. Harness brings AI and automation to this outer loop, turning complex, time-consuming workflows into streamlined processes at massive global scale.

The platform includes industry leading products in CI/CD, Feature Flags, Cloud Cost Management, Service Reliability, Chaos Engineering, Software Engineering Insights, Internal Developer Experience, and API discovery, observability, governance, and runtime protection. Over the past year, Harness powered 128M deployments, 81M builds, 1.2T API calls protected, and $1.9B in cloud spend optimized, helping customers like United Airlines and Choice Hotels accelerate releases by up to 75% and achieve 10x DevOps efficiency. With employees in over 25 countries, Harness is shaping the future of AI-driven 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 threading across different virtual machines

• Hands-on experience with Linux-based systems

• Passion for clean, elegant code that is simple to test and maintain.

• Team-oriented mindset with excellent collaboration and communication skills.

• Ability to manage multiple projects simultaneously in a fast-moving environment.

• Highly motivated, self-driven, and eager to learn new technologies and domain areas.

• Open to feedback and committed to continuous improvement and personal growth.

Work Location

• Tandil, Argentina or remote, within Argentina.

What You Will Have at Harness

• Competitive salary

• Comprehensive healthcare benefits

• Flexible work schedule

• Monthly, quarterly, and annual social and team building events

Harness in the news:

• Accelerating Our Mission to Bring AI to Everything After Code

• Goldman Sachs leads investment in software delivery startup Harness at $5.5 billion valuation

• How Harness runs 16 “startups within a startup” at scale | Jyoti Bansal

• Harness Research Shows AI Visibility Crisis Fueling Security Nightmare

• Harness has been named to the Inc. Power Partner list for software delivery success

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex or national origin.

Note on Fraudulent Recruiting/Offers

We have become aware that there may be fraudulent recruiting attempts being made by people posing as representatives of Harness. These scams may involve fake job postings, unsolicited emails, or messages claiming to be from our recruiters or hiring managers.

Please note, we do not ask for sensitive or financial information via chat, text, or social media, and any email communications will come from the domain @harness.io. Additionally, Harness will never ask for any payment, fee to be paid, or purchases to be made by a job applicant. All applicants are encouraged to apply directly to our open jobs via our website. Interviews are generally conducted via Zoom video conference unless the candidate requests other accommodations.

If you believe that you have been the target of an interview/offer scam by someone posing as a representative of Harness, please do not provide any personal or financial information and contact us immediately at security@harness.io. You can also find additional information about this type of scam and report any fraudulent employment offers via the Federal Trade Commission’s website (https://consumer.ftc.gov/articles/job-scams)), or you can contact your local law enforcement agency.