Senior/Staff Engineer - Bombadil in London

Senior/Staff Engineer - Bombadil in London

London Full-Time 70000 - 90000 £ / year (est.) On-site
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At a Glance

  • Tasks: Join a team tackling software reliability through innovative testing solutions.
  • Company: Antithesis, a well-funded tech company redefining software reliability.
  • Benefits: Competitive salary, collaborative environment, and opportunities for professional growth.
  • Other info: Dynamic team with diverse backgrounds, focused on high engineering quality.
  • Why this job: Make a real impact on the future of autonomous testing in software.
  • Qualifications: Proficient in Rust, with experience in property-based testing and web technologies.

The predicted salary is between 70000 - 90000 £ per year.

About Antithesis
We've been quietly reinventing how the world thinks about software reliability, and we're just getting started! At Antithesis, we start at the foundations – we run entire software systems inside a deterministic simulation and break them in every way imaginable. Every issue then comes with a perfect reproduction, so you can identify root causes fast instead of spending days trying to recreate what went wrong.

The rise of AI-generated code has made this work more urgent than ever. Agents can write code faster than any human, but speed doesn't matter much when the output is buggy, stuck in review, or slipping through undetected. The verification bottleneck is real, it's growing, and solving it is one of the most consequential problems in software right now. That's what you'd be working on.

We're well-funded and deeply technical, the kind of place where the hardest problems get the most attention and the best ideas win regardless of who has them. If you want to do work that actually moves the needle on how reliable software can be, keep reading.

About the Role
We're looking for engineers in the Senior to Staff levels to build the future of autonomous testing. No matter your particular field of experience, if you've been ambitiously building complex software and think you could be a fit; drop us a note.

In this role you will be part of the team that maintains our open-source project Bombadil (https://github.com/antithesishq/bombadil). This includes working with the specification language and verifier, Chromium automation, advanced property-based testing, frontend development, and much more.

Must have for this role:

  • Proficient in Rust development
  • Experience with property-based testing or fuzzing
  • Comfortable with web technology (browsers, HTTP, HTML, Javascript, CSS)

Experience that would be a plus:

  • Chrome Devtools Protocol, Playwright, Cypress, or Selenium
  • Formal specification languages (e.g. TLA+ or some LTL)
  • Implementing parsers, type systems, and interpreters

About Our Team
Our team spans CS degrees, philosophy, mathematics, and everything in between, or nothing formal at all. What everyone shares is a high bar for engineering quality. We work in-person because it's how we build trust and tackle hard problems together.

Location: This position is 5 days in the office in London, UK.

Senior/Staff Engineer - Bombadil in London employer: Antithesis

Antithesis is an exceptional employer that fosters a dynamic and collaborative work culture in the heart of London. With a strong focus on employee growth, we offer comprehensive training and development opportunities, ensuring our team members thrive in their careers. Join us to be part of a forward-thinking company that values innovation and teamwork, making a meaningful impact in the B2B SaaS landscape.

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Contact Details:

Antithesis Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior/Staff Engineer - Bombadil in London

✨Join Local Tech Meetups

Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Antithesis or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!

✨Contribute to Open Source Projects

Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Antithesis.

✨Tap into Online Developer Communities

Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Antithesis.

✨Explore Job Boards Specifically for Tech Roles

Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Antithesis that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!

We think you need these skills to ace Senior/Staff Engineer - Bombadil in London

Rust Development
Property-Based Testing
Fuzzing
Web Technology
Chromium Automation
Frontend Development
Chrome Devtools Protocol

Some tips for your application 🫡

Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.

Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Antithesis.

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Antithesis and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!

Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!

How to prepare for a job interview at Antithesis

✨Brush Up on Your Coding Skills

For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.

✨Know Your Tools and Frameworks

Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Antithesis uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.

✨Showcase Your Projects

Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.

✨Prepare for Behavioural Questions

While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.