{"id":2567888,"url":"https://alion.io/job/fdj-united-senior-software-engineer-java","title":"Senior Software Engineer, Java","company":{"id":1795857,"name":"FDJ United","domain":"fdjunited.com","url":"https://alion.io/company/fdjunited","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Radancy","truth_index":{"grade":"B","score":75,"open_postings":6,"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":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Stockholm, Sweden"],"countries":["SE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":52000,"max_usd":155000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":6933},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"CI/CD","optional":false},{"name":"Java","optional":false},{"name":"OWASP","optional":false},{"name":"Shift-Left","optional":false},{"name":"Shift-Left Security","optional":false},{"name":"Spring Boot","optional":false}],"status":"live","first_seen_at":"2026-10-14T22:17:56Z","employer_posted_date":"2026-10-14","last_verified_at":"2026-10-16T04:38:18Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"At FDJ UNITED, we don't just follow the game, we reinvent it.\nFDJ UNITED is one of Europe’s leading betting and gaming operators, with a vast portfolio of iconic brands and a reputation for technological excellence. With more than 5,000 employees and a presence in around fifteen regulated markets, the Group offers a diversified, responsible range of games, both under exclusive rights and open to competition. We set new standards, proving that entertainment and safety can go hand in hand. Here, you’ll work alongside a team of passionate individuals dedicated to delivering the best and safest entertaining experiences for our customers every day.\nWe’re looking for bold people who are eager to succeed and ready to level-up the game. If you thrive on innovation, embrace challenges, and want to make a real impact at all levels, FDJ UNITED is your playing field.\nJoin us in shaping the future of gaming. Are you ready to LEVEL-UP THE GAME?\nAs a senior software engineer, you are a core team member on whom the team relies to consistently deliver high quality solutions. You takeownership to help the team reach their goals, including actively sharing knowledge and providing feedback. You can identify and initiate activities to address improvement areas within the team. With a mature view on technical governance you have a long term perspective of the team's components\nand applications.\nYour experience\nStrong experience building and evolving production-grade backend systems in Java.\nSolid experience with the Spring ecosystem, ideally Spring Boot, and designing APIs and service integrations in complex environments.\nExperience working with distributed systems and event-driven architecture, ideally with Kafka and/or Solace.\nSolid understanding of authentication and authorization concepts, including sessions, tokens, redirects, cookies, access control, and common implementation pitfalls.\nKnowledge of OAuth 2.0 and OpenID Connect is a strong advantage.\nStrong secure development mindset, with the ability to identify risks, think through abuse cases, and apply secure-by-default principles in design and implementation.\nGood understanding of common application security practices such as OWASP principles, dependency/security scanning, and safe handling of sensitive data and PII.\nExperience with testing strategies such as integration testing, contract testing, and test automation.\nComfortable reviewing code, giving and receiving feedback, and maintaining a high quality bar.\nAble to break down requirements and technical designs into clear deliverables, and sequence work in a way that reduces delivery and operational risk.\nStrong communication skills, with the ability to represent the team clearly in technical and stakeholder discussions.\nExperience with production support, monitoring, incident handling, and driving improvements after incidents.\nExperience using CI/CD pipelines and engineering tools to improve code quality, security, and delivery confidence.\nExperience working with relational databases.\nExperience with performance testing and performance-aware design is an advantage.\nWhat you will do\nDevelop secure, reliable, and maintainable solutions for authentication, authorization, and session-related flows in a business-critical domain.\nDesign and evolve backend solutions that meet both business and technical requirements, while proactively identifying risks and improvement opportunities related to security, reliability, and performance.\nContribute to a high engineering bar through clean design, code reviews, testing, and pragmatic engineering practices.\nTake ownership from design to production: break down work, drive delivery, and support operational stability in production.\nProactively improve quality by catching issues early through automation, validation, and shift-left testing practices.\nMake sound technical decisions and align effectively with teammates and stakeholders across product, architecture, and security.\nWe believe talent knows no boundaries. Our hiring process focuses solely on your skills, experience, and potential to contribute to our team. We welcome applicants from all backgrounds and evaluate each candidate based on merit, regardless of personal characteristics as the age, gender, origin, religion, sexual orientation, neurodiversity or disability.","description_format":"text","description_chars":4327,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Sports Betting","iGaming & Gambling"],"lifecycle":[{"event":"open","at":"2026-10-14T22:17:56Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":0,"expected_fill_days":28,"reasons":["conf:3","velocity","win:early"],"computed_at":"2026-10-15T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/fdj-united-senior-software-engineer-java","json_url":"https://alion.io/job/fdj-united-senior-software-engineer-java.json","meta":{"generated_at":"2026-10-16T05:02:20Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":2130,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-17T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":1795857},"rest":"https://alion.io/mcp/rest/get_company?id=1795857"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ffdj-united-senior-software-engineer-java"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Ffdj-united-senior-software-engineer-java"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Ffdj-united-senior-software-engineer-java"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/fdj-united-senior-software-engineer-java\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ffdj-united-senior-software-engineer-java"}]}