{"id":2427442,"url":"https://alion.io/job/deloitte-intern-fullstack-software-engineer-net-react-1","title":"Intern Fullstack Software Engineer (.NET & React) 1","company":{"id":2114233,"name":"Deloitte Luxembourg","domain":"deloitte.lu","url":"https://alion.io/company/deloitte-lu","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career sitemap","truth_index":{"grade":"B","score":75,"open_postings":18,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-15T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"intern","employment_type":"internship","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Luxembourg City, Luxembourg"],"countries":["LU"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Agile","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-09-28T00:00:00Z","employer_posted_date":"2026-09-28","last_verified_at":"2026-10-15T05:23:16Z","board_verified":true,"closed_at":null,"days_open":17,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":17},"description":"On site\nFull time\nYour future team\nJoin our Digital Factory, a multidisciplinary team where technology professionals and business experts work together to build high-impact digital solutions for the financial sector. We develop modern, data-driven products in an Agile environment, with strong collaboration, continuous learning, and a shared focus on quality and client value.\nThe advantages of joining us\nInnovative work that mattersBuild data-intensive applications using modern technologies, engineering standards, and AI-enabled tooling.\n\nCareer growth, your way Benefit from continuous learning opportunities, coaching, and a clear development path from junior to more senior roles.\n\nGlobal impact, local connectionsWork on international projects and collaborate with diverse teams, all while making an impact locally\n\nInclusive, flexible cultureEmbrace a culture where your voice matters, with flexible hours to balance work and life seamlessly.\n\nCollaborative team spirit Work hand in hand with financial experts and business teams in a dynamic, startup-minded environment.\n\nHow you’ll contribute to our success\nDesign, develop, and maintain robust full-stack applications with a strong focus on software engineering fundamentals in a financial services context (banking, investment funds, etc.).\nBuild and optimize data-intensive solutions, APIs, and processing workflows using C#/.NET and SQL Server.\nCreate intuitive and scalable user interfaces with React and related ecosystem tools.\nApply Agile practices in day-to-day delivery, including sprint planning, collaboration, and continuous improvement.\nPromote quality across the development lifecycle through clean code, testing, CI/CD, and transparent communication on scope, progress, and delivery risks.\nYour skills\nUniversity degree in Computer Science, Software Engineering, or another relevant field.\nFluent English is required. French is considered an asset.\nC#/.NET (Core), SQL/relational databases, and front-end development with React\nExperience with API design/integration, test automation and CI/CD practices, and interest in AI-related tools and use cases are considered assets. \nCollaborative mindset with strong team spirit and knowledge-sharing attitude.\nClear communication skills and ability to build trusted relationships with technical and business stakeholders.\nAnalytical thinking, proactive problem-solving, and adaptability in a changing environment.\nInterested? Please submit your resume in English\nGet to know more about Deloitte on our LinkedIn page (#DeloitteLU), Instagram page, YouTube page or website.\nWith more than 2,600 employees and 98 nationalities, Deloitte Luxembourg is one of the Grand Duchy's largest, strongest and oldest professional services firms. For more than 75 years, our talented teams have been serving clients in various industries delivering high added-value offerings to national and international clients in audit and assurance, consulting, financial advisory, risk advisory, tax, and related services. Deloitte Luxembourg is part of the global Deloitte network.\nDeloitte provides leading professional services to nearly 90% of the Fortune Global 500® and thousands of private companies. Our people deliver measurable and lasting results that help reinforce public trust in capital markets and enable clients to transform and thrive. Building on its 180+-year history, Deloitte spans more than 150 countries and territories. 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