Leaning Technologies
Leeds, Yorkshire
Leaning Technologies is seeking a talented Software Engineer for a paid internship based in Amsterdam (near Amstel station), Netherlands. This is a full-time internship with a duration of 6 months, starting in April/May 2026. Developer Experience at Leaning Technologies is a small team that blends software engineering and marketing. We build open source software, design websites, create social media content, and advocate for our company in the developersphere. Our has secured us speaker positions in several conferences, such as JavaCro 2025 and Wasm I/O 2026. We build demos and integrations using our WebAssembly technology and create technical content that interests developers. Examples of our work include: - developer documentation site - Linux virtualised in the browser - Minecraft running in the browser - Live embedded demos - Java code playground, fully client-side What we offer Flexibility and part-remote work is guaranteed to all employees. Join a team of incredibly talented minds, in a position with plenty of opportunities for personal and professional growth. Get to work on challenging, complex and stimulating projects. You will work with our CTO and other developers, and get 1-1 tutoring and guidance from the rest of the team. We have very minimal overhead, a flat structure, and we prefer to get to work rather than spend hours in meetings. We offer high flexibility, family-friendly arrangements, and actively promote a good work-life balance. This is a paid internship, you'll be compensated at 1600 EUR per month. What you will be doing Your work will be split between the different areas of responsibility based on our current company needs and your personal preferences. We make sure to take your existing expertise and interests into account. Here are some of the more predominant fields of work done by the position: Independently planning, proposing and executing ideas to expand our user base Improving technical documentation Building new demos and improving older ones Improving our website Assisting with product releases Helping run our social media Applying to conferences Assisting with event planning, like hackathons Requirements Being enrolled in a BSc/MSc or alternative education program in Digital Media, Computer Science, Mathematics, or a related discipline with equivalent experience, ideally in the last year. Working experience in alternative will also be considered. Excellent communication skills. Some practical software development experience (including University projects) is required. Residence and right to work in the Netherlands. Extra credit Do you do any of the following? That makes you an even better fit! You have contributed to, or continue to maintain, open source software Interest in modern, accessible web design and/or UX design Create successful social media content, especially if it is to a developer audience Have creative experience with video production, video editing, and/or graphic design Have experience with the evolving JavaScript ecosystem, such as: TypeScript, React, Next.js, Vue, Angular, Node.js, Deno, Bun Can provide a portfolio of design or development projects (such as side projects on GitHub) Follow cutting-edge web platform features such as WebAssembly and Progressive Web Apps Understand any of the following programming languages: C, C++, Java, Rust Have social media management and/or community management experience (e.g. Twitter/X, Discord) 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. We highly recommend that you write a cover letter with your application explaining how you would fill a role blending programming, developer advocacy, and content creation. About Leaning Technologies Leaning Technologies () makes WebAssembly tools to run any software on any browser. 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 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, The Netherlands. We value a great, informal work environment, high flexibility, and having genuine fun and excitement every day at work. Want to see what it is all about? Join our Discord: and have a chat with our developers!
Leaning Technologies is seeking a talented Software Engineer for a paid internship based in Amsterdam (near Amstel station), Netherlands. This is a full-time internship with a duration of 6 months, starting in April/May 2026. Developer Experience at Leaning Technologies is a small team that blends software engineering and marketing. We build open source software, design websites, create social media content, and advocate for our company in the developersphere. Our has secured us speaker positions in several conferences, such as JavaCro 2025 and Wasm I/O 2026. We build demos and integrations using our WebAssembly technology and create technical content that interests developers. Examples of our work include: - developer documentation site - Linux virtualised in the browser - Minecraft running in the browser - Live embedded demos - Java code playground, fully client-side What we offer Flexibility and part-remote work is guaranteed to all employees. Join a team of incredibly talented minds, in a position with plenty of opportunities for personal and professional growth. Get to work on challenging, complex and stimulating projects. You will work with our CTO and other developers, and get 1-1 tutoring and guidance from the rest of the team. We have very minimal overhead, a flat structure, and we prefer to get to work rather than spend hours in meetings. We offer high flexibility, family-friendly arrangements, and actively promote a good work-life balance. This is a paid internship, you'll be compensated at 1600 EUR per month. What you will be doing Your work will be split between the different areas of responsibility based on our current company needs and your personal preferences. We make sure to take your existing expertise and interests into account. Here are some of the more predominant fields of work done by the position: Independently planning, proposing and executing ideas to expand our user base Improving technical documentation Building new demos and improving older ones Improving our website Assisting with product releases Helping run our social media Applying to conferences Assisting with event planning, like hackathons Requirements Being enrolled in a BSc/MSc or alternative education program in Digital Media, Computer Science, Mathematics, or a related discipline with equivalent experience, ideally in the last year. Working experience in alternative will also be considered. Excellent communication skills. Some practical software development experience (including University projects) is required. Residence and right to work in the Netherlands. Extra credit Do you do any of the following? That makes you an even better fit! You have contributed to, or continue to maintain, open source software Interest in modern, accessible web design and/or UX design Create successful social media content, especially if it is to a developer audience Have creative experience with video production, video editing, and/or graphic design Have experience with the evolving JavaScript ecosystem, such as: TypeScript, React, Next.js, Vue, Angular, Node.js, Deno, Bun Can provide a portfolio of design or development projects (such as side projects on GitHub) Follow cutting-edge web platform features such as WebAssembly and Progressive Web Apps Understand any of the following programming languages: C, C++, Java, Rust Have social media management and/or community management experience (e.g. Twitter/X, Discord) 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. We highly recommend that you write a cover letter with your application explaining how you would fill a role blending programming, developer advocacy, and content creation. About Leaning Technologies Leaning Technologies () makes WebAssembly tools to run any software on any browser. 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 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, The Netherlands. We value a great, informal work environment, high flexibility, and having genuine fun and excitement every day at work. Want to see what it is all about? Join our Discord: and have a chat with our developers!
Leaning Technologies
Leeds, Yorkshire
Do you want to work at the cutting edge of browser technologies? Are you interested in working on Development Tools? Join our engineering team, where you will be working on the next generation of compilers and virtual machines that target HTML5/WebAssembly, contributing to our vision of bringing any application to the Web. We are looking for an enthusiastic developer-to-be, interested in joining a very dynamic and rapidly growing specialist software company developing WebAssembly solutions. This is a full-time paid internship position based in Amsterdam (near Amstel station), Netherlands, with a duration of 6 months, starting in April/May 2026. What we offer Flexibility and part-remote work is guaranteed to all employees. Join a team of incredibly talented minds, in a position with plenty of opportunities for personal and professional growth. Get to work on challenging, complex and stimulating projects. You will work with our CTO and other developers, and get 1 1 tutoring and guidance from the rest of the team. We have very minimal overhead, a flat structure, and we prefer to get to work rather than spend hours in meetings. We offer high flexibility, family friendly arrangements, and actively promote a good work life balance. This is a paid internship, you'll be compensated at 1600 EUR per month. What you will be doing: Project 1: Improve CheerpJ JIT CheerpJ () is a Java Virtual Machine that runs fully in the browser. It can run large scale Java applications and applets with no modifications, including code that uses multi threading, reflection and other advanced Java features. CheerpJ uses its sophisticated Just In Time compiler to build JavaScript functions out of the original Java bytecode. Your task will be to implement some self contained improvements to the JIT. Familiarize yourself with CheerpJ Learn about Just In Time compilation Add new features to the JIT Project 2: Create new testing infrastructure using Nix Nix is a functional package manager that allows you to manage system configurations and packages deterministically via its own functional programming language. We are in the process of building a Nix based CI, and the next step is adding infrastructure to run workloads in the browser in order to test our products. Familiarize yourself with Nix Design and implement a new testing infrastructure to fit in with our CI Add test workflows to our products Requirements Being enrolled in a BSc/MSc or alternative education program in Computer Science or equivalent, ideally in the last year. Working experience in alternative will also be considered. Some practical C/C++ development experience (including University projects) is required Understanding of object oriented design principles Residence and right to work in the Netherlands About Leaning Technologies Leaning Technologies () makes WebAssembly tools to run any software on any browser. 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 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, The Netherlands. We value a great, informal work environment, high flexibility, and having genuine fun and excitement every day at work. Want to see what it is all about? Join our Discord: and have a chat with our developers!
Do you want to work at the cutting edge of browser technologies? Are you interested in working on Development Tools? Join our engineering team, where you will be working on the next generation of compilers and virtual machines that target HTML5/WebAssembly, contributing to our vision of bringing any application to the Web. We are looking for an enthusiastic developer-to-be, interested in joining a very dynamic and rapidly growing specialist software company developing WebAssembly solutions. This is a full-time paid internship position based in Amsterdam (near Amstel station), Netherlands, with a duration of 6 months, starting in April/May 2026. What we offer Flexibility and part-remote work is guaranteed to all employees. Join a team of incredibly talented minds, in a position with plenty of opportunities for personal and professional growth. Get to work on challenging, complex and stimulating projects. You will work with our CTO and other developers, and get 1 1 tutoring and guidance from the rest of the team. We have very minimal overhead, a flat structure, and we prefer to get to work rather than spend hours in meetings. We offer high flexibility, family friendly arrangements, and actively promote a good work life balance. This is a paid internship, you'll be compensated at 1600 EUR per month. What you will be doing: Project 1: Improve CheerpJ JIT CheerpJ () is a Java Virtual Machine that runs fully in the browser. It can run large scale Java applications and applets with no modifications, including code that uses multi threading, reflection and other advanced Java features. CheerpJ uses its sophisticated Just In Time compiler to build JavaScript functions out of the original Java bytecode. Your task will be to implement some self contained improvements to the JIT. Familiarize yourself with CheerpJ Learn about Just In Time compilation Add new features to the JIT Project 2: Create new testing infrastructure using Nix Nix is a functional package manager that allows you to manage system configurations and packages deterministically via its own functional programming language. We are in the process of building a Nix based CI, and the next step is adding infrastructure to run workloads in the browser in order to test our products. Familiarize yourself with Nix Design and implement a new testing infrastructure to fit in with our CI Add test workflows to our products Requirements Being enrolled in a BSc/MSc or alternative education program in Computer Science or equivalent, ideally in the last year. Working experience in alternative will also be considered. Some practical C/C++ development experience (including University projects) is required Understanding of object oriented design principles Residence and right to work in the Netherlands About Leaning Technologies Leaning Technologies () makes WebAssembly tools to run any software on any browser. 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 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, The Netherlands. We value a great, informal work environment, high flexibility, and having genuine fun and excitement every day at work. Want to see what it is all about? Join our Discord: and have a chat with our developers!