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c/side

Senior Engineer - Rust

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Remote
4 Locations
Remote
4 Locations

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About c/side:

c/side is laser focussed on solving web security, starting with browser side injections. Covering previously unmonitored attack surfaces in developer and user friendly ways.

The team of c/side are a diverse mix of highly capable subject matter experts. We’re kind but we mean business.

Since January 2024, c/side has raised $ 7.7 million in pre-seed funding from Uncork Capital, Mantis Ventures, Scribble Ventures, Roar VC, Dan Scheinman, Jason Warner, Kathy Korevec and many more. A team of handpicked, high value add investors invested in helping our company and team grow.

About the role:

We are looking for a senior software engineer with deep expertise and passion for building and maintaining a fast distributed backend environment based on Rust and Go. Helping us develop and maintain our back-end engines that help detect threats, optimize scripts and simply make the web safer and faster.

What you will do:

  • Design and build high-performance backend services in Rust to process large-scale data from web security monitoring.

  • Assist in maintaining and enhancing other backend services written in Go.

  • Collaborate with security researchers to turn detection prototypes into production-grade systems.

  • Work closely with the infrastructure team to ensure observability, reliability, and scalability.

  • Contribute to design discussions and technical decision-making for evolving our backend platform.

About you:

  • You are fluent in Rust, and aren’t afraid to go deep on performance tuning, concurrency, or memory safety.

  • You are also comfortable working in Go, and can navigate Typescript when needed. Or you are motivated to learn if it’s new to you.

  • You have strong systems thinking and enjoy reasoning about complex distributed systems.

  • You have worked with event-driven systems and have experience with Kafka, RabbitMQ, or similar message queues.

  • You’re confident deploying and operating services on AWS, and understand the trade-offs between managed services and custom infrastructure.

  • You are familiar with or are excited to learn how attackers operate and how to design systems that make their job harder.

  • You are experienced with designing APIs and backend architectures that are robust and secure by default.

  • You have 4+ years of experience in backend or systems engineering roles, ideally in high-scale or security-sensitive contexts.

  • You have a lot of energy and are eager to work in a dynamic startup environment, working hard to build world changing technology, going from 0 to 1.

  • Bonus: you like playing around with AI models.

At c/side:

  • We’re constantly learning and developing better, we grow together

  • We do not ship half projects, we do not sell snake oil, we don’t cut corners - out of respect for our team, our customers and our community. We put a dent in the universe by building good products

  • Transparency and integrity above all

C/side offers:

  • 2-3 Offsites per year (this changes from time to time)

  • Generous work from home allowance

  • Latest Macbook

  • Stock options

  • Market rate salary

  • Take what you need PTO

  • Fully remote, 4h overlap with UK working hours required

  • Our team is invested in your long term career development. If you want to talk at events, we’ll make that happen, if you want to learn how to build your own startup one day, we’ll offer you a front line seat. C/side is built by folks like you.

We’re building a world class security company, and we simply want the best people for the job. We do not select or discriminate based on formal educational background, age, skin tone, religion, national origin, sexual orientation, gender identity, disability status, marital status, veteran status… we’re welcoming all and celebrate equal opportunities.

What you need to know about the Seattle Tech Scene

Home to tech titans like Microsoft and Amazon, Seattle punches far above its weight in innovation. But its surrounding mountains, sprinkled with world-famous hiking trails and climbing routes, make the city a destination for outdoorsy types as well. Established as a logging town before shifting to shipbuilding and logistics, the Emerald City is now known for its contributions to aerospace, software, biotech and cloud computing. And its status as a thriving tech ecosystem is attracting out-of-town companies looking to establish new tech and engineering hubs.

Key Facts About Seattle Tech

  • Number of Tech Workers: 287,000; 13% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Amazon, Microsoft, Meta, Google
  • Key Industries: Artificial intelligence, cloud computing, software, biotechnology, game development
  • Funding Landscape: $3.1 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Madrona, Fuse, Tola, Maveron
  • Research Centers and Universities: University of Washington, Seattle University, Seattle Pacific University, Allen Institute for Brain Science, Bill & Melinda Gates Foundation, Seattle Children’s Research Institute
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