Hybrid Software Engineer - Part-Time Product Support (WebAssembly, CheerpJ) na Leaning Technologies

Leaning Technologies is seeking a talented Software Engineer for a a part-time technical product support role based in our UK office at Nexus, on the University of Leeds campus. This is a flexible, part time position, designed to be ideal for people seeking a stable part-time role, including students. 

The role is available immediately (August 2025), with an initial duration of 3 months, and the possibility to extend further. Interns and part-timers often go on to join the company for longer periods of time. 

We make software development tools, such as compilers, virtual machines and JVMs, that target the Browser and WebAssembly. One of our products, called CheerpJ (website, docs), is a JVM/JRE in WebAssembly for the browser, and is used to run Java applications on modern browsers. CheerpJ powers Java applications used by over 300,000 users, and has been used by large organisations worldwide since 2017.

REQUIREMENTS

• Undergraduate or postgraduate student studying Computer Science, or a related discipline with equivalent experience

• Self-taught candidates also considered

• Excellent communication skills

• Proficiency in HTML, CSS, and JavaScript
• Interest in modern Web technologies including WebAssembly
• Basic knowledge of Java
• Leeds location

ROLE

You will work on:

• Supporting customers in integrating and testing different CheerpJ solutions, including CheerpJ itself, the CheerpJ JNLP runner, and the CheerpJ Applet Runner

• Replicate, diagnose and resolve issues with the integration of CheerpJ on existing infrastructure that includes Java components

• Communicate with prospective customers and CheerpJ developers 

• Provide support to the technical sales team

• Develop and improve CheerpJ documentation

To get a feeling of everything we do, feel free to have a look around our Developer Labs and our GitHub.

WHAT WE OFFER

• Hybrid - based in our Leeds office, but work from anywhere if you need to (in-office at least 1 day per week, most weeks)

• Paid leave pro-rata, 31 days off for a FTE 

• At least 16 hours per week, but ideally 20 hours, spread over at least four working days per week.

• Ability to adjust around your schedule, particularly during term time if a student

• Ability to study from our office on the University of Leeds campus (Nexus building)

• An excellent opportunity to gain hands-on experience in a small team where you can make your mark

• Company pension scheme if applicable

HOW TO APPLY

To apply, please submit your CV, cover letter, and any portfolio material using the 'Apply Now' button at the top of the page. We are reviewing applicants as we receive them and will confirm invitations to interview via email for successful applications. The addition of a cover letter with your application will be seen favourably.

We look forward to receiving your application!

ABOUT US

Leaning Technologies (https://www.leaningtech.com) is a WebAssembly technology company based in Leeds and Amsterdam.

We make solutions that enable C/C++, Java, Flash, and native Linux applications to be compiled, emulated and virtualised into HTML5/WebAssembly. Our tools are used to develop high-performance web apps in ‘traditional’ programming languages, to port existing code to the Web, or to preserve accessibility to legacy applications by converting/emulating them to HTML5. We have a global client base including multiple Fortune-100 companies and public sector organisations, in sectors including financial services, CAD software, HR and operations, logistics, defence and aerospace, retail, science and education, and videogames.

Our incredibly talented, tight-knit team works from different locations with a hybrid remote/office approach. Our main offices are Leeds, United Kingdom and Amsterdam, Netherlands. We value a great, informal work environment, high flexibility, and having genuine fun and excitement every day at work.

Want to see what we’re all about? Join our Discord and have a chat with our developers!