{"id":2305626,"url":"https://alion.io/job/euronext-developer-trainee","title":"Developer Trainee","company":{"id":14289,"name":"Euronext","domain":"euronext.com","url":"https://alion.io/company/euronext","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":80,"open_postings":5,"ghost_share":0,"stale_share":0.8,"repost_share":0,"time_to_fill_p50_days":58,"computed_at":"2026-10-12T06:55:09Z"}},"role":"Early Careers","role_family":"Early Careers","seniority":"intern","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Porto, Portugal"],"countries":["PT"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":16000,"max_usd":31000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":621},"experience_years_min":1,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"AWS","optional":false},{"name":"Docker","optional":false},{"name":"GitLab","optional":false},{"name":"JavaScript","optional":false},{"name":"Jenkins","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-10-11T22:53:32Z","employer_posted_date":"2026-10-11","last_verified_at":"2026-10-12T19:10:24Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Are you ready to shape the future of capital markets?\nWe 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.\nYou will primarily be responsible for:\nDeveloping and maintaining MkDocs plugins and extensions, including backend and frontend components\nBuilding web-based tools and applications using HTML, CSS and JavaScript\nCreating Python tools for developer productivity, data processing and analytics\nContributing to the design and evolution of internal developer tools and automation\nWriting clean, maintainable and tested code, following modern software engineering practices\nUsing technologies such as GitLab, Jenkins, Artifactory, AWS and Docker\nParticipating in code reviews, technical discussions and team design sessions\nInvestigating technical problems and experimenting with solutions\nMaintaining and improving existing tools while contributing to new developments\nCollaborating closely with architects and developers in Porto and Paris\nYour profile:\nDegree in Computer Science, Software Engineering or a related field\nKnowledge of Python, JavaScript, HTML and CSS\nFamiliarity with modern development tools (e.g. GitLab, Jenkins, Docker)\nStrong problem-solving and analytical skills\nWillingness to learn and adopt new technologies\nGood communication and teamwork abilities\nEagerness to work on a variety of projects and technical challenges\nUp to one year of relevant experience or recent graduate\nJoin 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:\nBeing part of a European, international and diverse team - Collaborate across borders with talented colleagues connected by a shared ambition and purpose.\nLearning as you grow - Develop your skills through continuous learning, real responsibilities and flexible career paths that evolve with you.\nHaving an impact - Contribute to projects that matter, in an agile and dynamic environment where your ideas help drive progress.\nDriving 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.\nApply by submitting a CV in English\nThe 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.\nJoin Euronext - Shape capital markets for future generations\nEuronext 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.\nFind out more about us at: Euronext.com\nEuronext Values\nUnity\nWe respect and value the people we work with\nWe are unified through a common purpose\nWe embrace diversity and strive for inclusion\nIntegrity\nWe value transparency, communicate honestly and share information openly\nWe act with integrity in everything we do\nWe don’t hide our mistakes, and we learn from them\nAgility\nWe act with a sense of urgency and decisiveness\nWe are adaptable, responsive and embrace change\nWe take smart risks\nEnergy\nWe are positively driven to make a difference and challenge the status quo\nWe focus on and encourage personal leadership\nWe motivate each other with our ambition\nAccountability\nWe deliver maximum value to our customers and stakeholders\nWe take ownership and are accountable for the outcome\nWe reward and celebrate performance\nWe 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.\nAdditional Information\nThis job description is only describing the main activities within a certain role and is not exhaustive. 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