SDK Engineer - C#

About Supabase

Supabase is the Postgres development platform, built by developers for developers. We provide a complete backend solution including Database, Auth, Storage, Edge Functions, Realtime, and Vector Search. All services are deeply integrated and designed for growth.

About the Role

We're looking for a C# SDK Engineer to join our SDK team and help bring official, first-class Supabase support to the .NET and Unity ecosystems. You'll work closely with our existing SDK engineers, the broader product and engineering team, and the C# developer community, helping us design, build, and maintain an SDK that feels native to the stack.

This role is ideal for someone who thrives in async, fast-paced environments and is excited about building developer tools that scale to millions.

What You'll Own

• Design and build the C# SDK — own the Supabase C# SDK end-to-end, including Auth, Database, Storage, Functions and Realtime clients, ensuring every surface feels idiomatic to .NET developers

• Drive the developer experience — make deliberate API design decisions that are well-typed, consistent, and intuitive for developers coming from the .NET ecosystem

• Shape the roadmap — identify gaps, triage feedback, and propose improvements based on real developer needs and Supabase product direction

• Engage the community — participate in GitHub discussions, review contributions, and build relationships with .NET and Unity developers using Supabase

• Collaborate across the SDK team — contribute to shared patterns, tooling, and standards that raise the quality bar across all supported languages

• Write documentation and examples — produce guides, code samples, and reference docs that help developers get started quickly and go deep with confidence

What You Bring

• Have 5+ years of experience building production applications in C# and the .NET ecosystem

• Have prior experience building SDKs, libraries, or other developer-facing tools, with a strong sense of what makes an API intuitive and idiomatic

• Are comfortable working across multiple programming languages and ecosystems — you can read TypeScript, Python, or Go to draw patterns from the broader SDK team

• Communicate clearly across both technical and non-technical audiences

• Have experience in async or globally distributed teams

• Are energized by solving real-world problems for developers

• Are comfortable navigating ambiguity and moving quickly

What We Offer

• Fully Remote

We hire globally. We believe you can do your best work from anywhere. There are no Supabase offices, but we provide a WeWork membership or co-working allowance you can use anywhere in the world.

• ESOP

Every team member receives ESOP (equity ownership) in the company. We want everyone to share in the upside of what we’re building together.

• Tech Allowance

Use this budget to set up your ideal work environment—laptop, monitor, headphones, or whatever helps you do your best work.

• Health Benefits

Supabase covers 100% of health insurance for employees and 80% for dependents, wherever you are. Your wellbeing and your family’s health are important to us.

• Annual Off-Sites

Once a year, the entire company gathers in a new city for a week of connection, collaboration, and fun. It’s a highlight of our year.

• Flexible Work

We operate asynchronously and trust you to manage your own time. You know what needs to be done and when.

• Professional Development

Every team member receives an annual education allowance to spend on learning—courses, books, conferences, or anything that supports your growth.

About the Team

Supabase was born-remote and open-source-first. We believe our globally distributed team is our secret weapon in building tools developers love.

• 180+ team members

• 40+ countries

• 15+ languages spoken

• $496M raised

• 430,000+ community members

• 30,000+ memes posted (and counting)

We move fast, build in public, and use what we ship. If it’s in your project, we probably use it in ours too. We believe deeply in the open-source ecosystem and strive to support—not replace—existing tools and communities.

Hiring Process

We keep things simple, async-friendly, and respectful of your time:

• Apply – Our team will review your application.

• Intro Call – A short video chat to get to know each other.

• Interviews – Up to four calls with:

• Founders

• Future teammates

• Someone cross-functional from product, growth, or engineering (depending on the role)

• Decision – We may follow up with a final question or go straight to offer.

All communication is remote and we aim to move fast.