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Are you ready to shape the future of capital markets? We are looking for a Junior Developer Trainee to join the Dev Commando Team within the IT Market Services Architecture function. The position will be based in Porto, and start as soon as possible. You will report to the Dev Commando Team Lead. You will primarily be responsible for: Developing and maintaining MkDocs plugins and extensions, including backend and frontend components Building web-based tools and applications using HTML, CSS and JavaScript Creating Python tools for developer productivity, data processing and analytics Contributing to the design and evolution of internal developer tools and automation Writing clean, maintainable and tested code, following modern software engineering practices Using technologies such as GitLab, Jenkins, Artifactory, AWS and Docker Participating in code reviews, technical discussions and team design sessions Investigating technical problems and experimenting with solutions Maintaining and improving existing tools while contributing to new developments Collaborating closely with architects and developers in Porto and Paris Your profile: Degree in Computer Science, Software Engineering or a related field Knowledge of Python, JavaScript, HTML and CSS Familiarity with modern development tools (e.g. GitLab, Jenkins, Docker) Strong problem-solving and analytical skills Willingness to learn and adopt new technologies Good communication and teamwork abilities Eagerness to work on a variety of projects and technical challenges Up to one year of relevant experience or recent graduate Join a company where market infrastructure is built on innovation and where every innovation starts with a bold mind asking, “What’s next?”. At Euronext, we believe change is a starting point, not an obstacle. We look for people who see growth opportunities, think long term, and want to help shape capital markets for future generations. Working with us means: Being part of a European, international and diverse team – Collaborate across borders with talented colleagues connected by a shared ambition and purpose. Learning as you grow – Develop your skills through continuous learning, real responsibilities and flexible career paths that evolve with you. Having an impact – Contribute to projects that matter, in an agile and dynamic environment where your ideas help drive progress. Driving sustainability – Play an active role in building transparent, responsible and sustainable capital markets for the long term. Together, we do not just support markets – we help shape their future. Apply by submitting a CV in English The Dev Commando Team is a small, highly skilled engineering group within the Architecture function, focused on rapidly delivering developer tools, web applications and technical solutions to support engineering teams across Euronext. You will work closely with colleagues in Porto and Paris, contributing to a wide variety of projects and learning from experienced engineers and architects. Join Euronext – Shape capital markets for future generations Euronext is the leading European capital market covering the entire capital markets value chain, from listing, trading, clearing, settlement and custody, to solutions for issuers and investors. We operate eight national stock exchanges, handling 25% of European lit equity trading. Our products include equities, FX, ETFs, bonds, derivatives, commodities and indices. Euronext also provides clearing and settlement services through Euronext Clearing and our network of Euronext Securities CSDs. In addition, Euronext runs MTS, one of Europe’s leading electronic fixed income trading markets, and Nord Pool, the European power market. The company has a diverse domestic and international client base. Find out more about us at: Euronext.com Euronext Values Unity • We respect and value the people we work with • We are unified through a common purpose • We embrace diversity and strive for inclusion Integrity • We value transparency, communicate honestly and share information openly • We act with integrity in everything we do • We don’t hide our mistakes, and we learn from them Agility • We act with a sense of urgency and decisiveness • We are adaptable, responsive and embrace change • We take smart risks Energy • We are positively driven to make a difference and challenge the status quo • We focus on and encourage personal leadership • We motivate each other with our ambition Accountability • We deliver maximum value to our customers and stakeholders • We take ownership and are accountable for the outcome • We reward and celebrate performance We are proud to be an equal opportunity employer. We do not discriminate against individuals on the basis of race, gender, age, citizenship, religion, sexual orientation, gender identity or expression, disability, or any other legally protected factor. We value the unique talents of all our people, who come from diverse backgrounds with different personal experiences and points of view and we are committed to providing an environment of mutual respect. Additional Information This job description is only describing the main activities within a certain role and is not exhaustive. It does not prevent to add more tasks, projects. Euronext is the leading European capital market infrastructure, covering the entire capital markets value chain, from listing, trading, clearing, settlement and custody to solutions for issuers and investors. Euronext operates MTS, one of Europe’s leading electronic fixed income trading markets, and Nord Pool, the European power market. Euronext also provides clearing and settlement services through Euronext Clearing and its Euronext Securities central securities depositories (CSDs) in Denmark, Italy, Norway and Portugal. Euronext’s regulated exchanges in Belgium, France, Greece, Ireland, Italy, the Netherlands, Norway and Portugal host a broad range of listed issuers, a strong blue-chip franchise and the largest global center for debt and fund listings. With a diverse domestic and international client base, Euronext is a major venue for European lit equity trading. Its products include equities, FX, ETFs, bonds, derivatives, commodities and indices. For the more information, please visit our career website. Details Details Details 
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