At a Glance
- Tasks: Design, build, and support backend features for a cutting-edge SaaS product.
- Company: Join WireMock, the industry leader in API environment simulation.
- Benefits: Hybrid work model, competitive salary, and opportunities for professional growth.
- Other info: Contribute to open source and engage with a vibrant tech community.
- Why this job: Be part of a dynamic team shaping the future of software development with AI integration.
- Qualifications: 6+ years in software development, proficient in Java/Kotlin, and experience with AI coding tools.
The predicted salary is between 60000 - 75000 £ per year.
WireMock is the industry standard for API environment simulation. With a massive global open-source footprint and deep adoption across the Fortune 500, we provide the critical infrastructure that engineering teams use to de-couple development from fragile dependencies. As AI agents and LLM-integrated apps redefine the SDLC lifecycle, WireMock is building the simulation layer required to develop, test, and onboard at the speed of autonomous code. We’re leveraging our massive OSS pedigree to scale a SaaS/Cloud platform that handles the complexity of the modern, distributed enterprise.
The company is spread between the UK, California and the US east coast, with the engineering team based in London. This position will be hybrid and you will be required to arrive two days a week to the London office.
We’re looking for someone who:
- Wants to work in a small, dynamic team
- Likes working in a product-driven engineering environment, wearing multiple hats and actively contributing to product design.
- Has integrated AI coding tools into their workflow, but can reason and function without them where necessary.
- Cares about user delight over technical purity.
- Writes code in Java, Kotlin and ideally Javascript.
- Enjoys contributing to open source, including writing and speaking.
- Proactively improves their own skills and understanding of the domain they’re working in.
We’re looking for a Java/Kotlin developer who has a solid understanding of networking and HTTP, experience building complex web applications and an eye for quality balanced by pragmatism about delivery. The right candidate will have a disciplined approach to code quality and be comfortable using TDD, trunk-based development and continuous integration/delivery practices. They’ll also have the desire to gain a deep understanding of the product and its customers, and the ability to contribute to product design decisions. They’ll also want to write and speak to our community about the product, API mocking and related topics.
Responsibilities include:
- Design, build, test and support backend features in the commercial SaaS product.
- Create, maintain and support cloud infrastructure.
- Write documentation, contribute to article/tutorial content.
- Embed AI processes and usage across the SDLC.
- Contribute to the WireMock open source projects.
- Help customers and community members with technical queries.
- On call out-of-hours, approximately one week in every six.
Requirements:
- At least 6 years professional software development experience, of which the majority should be in Java or another JVM language.
- Recently written production code in Kotlin.
- Demonstrable experience using AI coding agents such as Claude Code, GitHub Copilot or Cursor on real projects.
- Solid understanding of TCP/IP and HTTP.
- Solid understanding of RESTful API design.
- Experience working at least one mainstream SQL database in a production application.
- Basic familiarity with Docker.
- Fluent spoken and written English.
- Able to work autonomously and take initiative when remote.
- UK based and required to work in London 2 days per week.
Nice-to-haves:
- Experience developing against AWS services – ECS, EC2 and RDS in particular.
- Experience managing cloud infrastructure via configuration-as-code.
- Front end development experience - HTML, CSS and Javascript.
- Experience with gRPC, GraphQL or websockets development.
Please only direct candidates, no recruiters.
Product Engineer employer: WireMock
WireMock is an excellent employer that fosters a collaborative and innovative work culture, particularly for Senior Backend Engineers passionate about AI technologies. With a competitive salary range of £80k to £110k and the flexibility of a hybrid working model in London, employees benefit from a supportive environment that encourages professional growth and contributions to open-source projects, making it a rewarding place to advance your career.
StudySmarter Expert Advice🤫
We think this is how you could land Product Engineer
✨Tip Number 1
Network like a pro! Reach out to folks in the industry, especially those at WireMock or similar companies. Attend meetups or webinars related to API development and product engineering to make connections that could lead to job opportunities.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those involving Java, Kotlin, or AI coding tools. Share your work on GitHub and don’t shy away from contributing to open-source projects – it’s a great way to get noticed!
✨Tip Number 3
Prepare for interviews by brushing up on your technical knowledge and soft skills. Be ready to discuss your experience with TDD, continuous integration, and how you’ve contributed to product design in past roles. Practice explaining complex concepts simply!
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our team at WireMock and contributing to our exciting projects.
We think you need these skills to ace Product Engineer
Some tips for your application 🫡
Show Your Passion for Product Engineering:When writing your application, let us see your enthusiasm for product-driven engineering. Share examples of how you've contributed to product design and development in the past. We love candidates who are excited about making a difference!
Highlight Your Technical Skills:Make sure to showcase your experience with Java, Kotlin, and any other relevant technologies. We want to know about your coding journey, so don’t hold back on mentioning your work with AI coding tools and your understanding of networking and HTTP.
Demonstrate Your Community Spirit:If you’ve contributed to open source or have experience writing articles/tutorials, mention it! We value community engagement, so let us know how you’ve shared your knowledge and helped others in the tech space.
Keep It Clear and Concise:While we appreciate detail, clarity is key. Make your application easy to read and to the point. Remember, we’re looking for someone who can communicate effectively, so show us your best writing skills!
How to prepare for a job interview at WireMock
✨Know Your Tech Stack
Make sure you brush up on your Java and Kotlin skills, as well as your understanding of HTTP and RESTful API design. Be ready to discuss your experience with AI coding tools like GitHub Copilot and how you've integrated them into your workflow.
✨Show Your Passion for Product Design
WireMock values user delight over technical purity, so be prepared to share examples of how you've contributed to product design in the past. Think about times when you balanced quality with pragmatism and how that led to successful outcomes.
✨Demonstrate Your Open Source Involvement
Since WireMock has a strong open-source pedigree, highlight any contributions you've made to open source projects. If you've written articles or spoken at events, mention these experiences to show your commitment to the community.
✨Prepare for Technical Questions
Expect to face questions about your experience with cloud infrastructure and SQL databases. Brush up on Docker basics too, as this knowledge will be beneficial. Practise explaining complex concepts clearly, as communication is key in a hybrid work environment.
