Staff Software Developer

Unity Technologies SF; Mountain View (CA); On-site; USD 178,000 - 267,000; Full time

Benefits offered by this job

Health insurance

Stock options

Retirement plans

Generous vacation

Parental leave

Wellbeing programs

Employee groups

Job summary

Unity Technologies SF is seeking a Senior API/SDK Platform Engineer to own the APIs and SDKs powering AI asset creation across Unity's AI platform. You will work across orchestration and partner integration layers behind the scenes to enable developers to build with rich assets and tools.

You will collaborate with product, design, and engineering to shape the roadmap, ensure secure, reliable backend services, and drive production readiness with guardrails, observability, and scalable

Qualifications

• Extensive experience with C#/.NET building production web APIs.
• Comfort working at multiple levels of abstraction from architecture to code.
• Demonstrated technical leadership and architectural decisions beyond a single team.
• Track record designing and evolving APIs/SDKs used by multiple teams or external developers.
• Strong interpersonal skills and ability to align stakeholders.

Responsibilities

• Own APIs and SDKs powering AI asset creation across design, delivery, and support.
• Ensure backend services are secure, reliable, observable, and IaC-driven.
• Develop and maintain new integrations with partners to improve asset workflows.
• Set patterns and guardrails for AI-assisted development and maintain high production code quality.
• Support CI, release, and incident management processes for continuous improvement.
• Collaborate with product, design, and engineering to shape the AI roadmap.

Skills

C# / .NET

TypeScript

Architectural leadership

APIs & SDKs design

Cloud platforms (Azure/GCP)

Observability & debugging

Technical collaboration

Tools

Unity

Azure

GCP

Job description

The opportunity

AI has made coding and prototyping faster. Game asset production and integration have not seen equivalent gains across images, 3D models, audio, and animation. The AI Generators team is building a platform for developers to create, modify, and incorporate high-quality assets into games through natural language, reusable tools, and APIs. This gives creators the convenience, artistic control, and interoperability their workflows need to bring their ideas to life.

You will help shape how these tools evolve alongside advances in generative AI and agentic development. That means exposing new capabilities and evaluating quality in agentic loops with appropriate human-in-the-loop oversight, so more people can build games and experts can realize their creative vision with less time and effort.

You will own the shared API and SDK layer that Unity products consume, and work across the orchestration and partner integration layers that sit behind it. Unity is the engine behind a large share of the games people play. This platform defines how generative AI capabilities reach those creators inside the workflows they already use.

What you'll be doing

• Owning APIs and SDKs powering AI asset creation experiences through the entire lifecycle of design, delivery, and support.
• Ensuring backend services are secure, reliable, and observable, and that they account for failure and recovery scenarios using infrastructure as code.
• Developing and maintaining new integrations in tight collaboration with our partners to enable improvements to asset workflows.
• Setting the patterns and practices for AI-assisted development across the team, with appropriate guardrails, feedback loops, and architectural oversight to keep production code quality high as the team's velocity increases.
• Supporting and improving the team's CI, release, and incident management processes to drive continuous improvement into the system from classes of support issues.
• Partnering with product, design, and engineering functions across Unity AI to shape the roadmap for appropriate investment in features vs. foundational health.

What we’re looking for

• Extensive experience with C# / .NET building production web APIs. Experience with TypeScript is a plus.
• Comfort working at multiple levels of abstraction, from the high-level architecture of a feature through developing and supporting the code for it.
• Demonstrated technical leadership driving architectural decisions broader than a single team and raising the technical judgement of the engineers around you.
• Track record of designing and evolving APIs and SDKs consumed by multiple teams or external developers, accounting for versioning lifecycle and compatibility validation.
• Strong interpersonal and communication skills, with successful experience aligning multiple stakeholders to deliver complex solutions.
• Expertise with cloud offerings including databases, publish-subscribe systems, and observability stacks, plus familiarity with the application patterns where each is appropriate.
• Proven expertise in debugging, profiling, and optimizing applications in a production environment, including evolving an existing service as scale or interaction complexity grows.

You might also have

• Experience with Azure or GCP cloud platforms and their offerings.
• Familiarity with Unity or other 3D engines and game asset pipelines.
• Experience with generative AI and related model capabilities, their evaluation and usage in game development.
• Multi-tenant enterprise platform experience: entitlements, metering, usage controls.

Base Salary Range

We determine the base salary range for this role based on your primary work location:

Zone A: $157,800 - $236,800 USD gross

Zone B: $178,300 - $267,500 USD gross

Zone C: $200,400 - $300,600 USD gross

This range reflects the anticipated base salary for this position. Beyond base salary, this role may be eligible for equity awards and participation in our company incentive plans (such as annual discretionary bonuses or sales commissions). The final offer amount will depend on several factors, including geographic location and the candidate's relevant experience, professional background, and skill set.

Benefits

At Unity, we want our team members to thrive. We offer a wide range of benefits designed to support well-being and work-life balance.

Please note: Benefits eligibility, specific offerings, and coverage vary based on the country and employment status.

While specific benefits vary, here are some of the ways we strive to take care of our eligible team members globally:

• Comprehensive health, life, and disability insurance
• Commute subsidy
• Employee stock ownership
• Competitive retirement/pension plans
• Generous vacation and personal days
• Support for new parents through leave and family-care programs
• Office food snacks
• Mental Health and Wellbeing programs and support
• Employee Resource Groups
• Global Employee Assistance Program
• Training and development pro