{"id":3523,"url":"https://alion.io/job/capco-poland-senior-backend-engineer-java","title":"Senior Backend Engineer - Java","company":{"id":1444,"name":"Capco","domain":"capco.com","url":"https://alion.io/company/capco-poland","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":76,"open_postings":118,"ghost_share":0.017,"stale_share":0.915,"repost_share":0.017,"time_to_fill_p50_days":42,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":83000,"max_usd":162000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":139},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"CloudFormation","optional":false},{"name":"Java","optional":false},{"name":"Spring Boot","optional":false},{"name":"SQL","optional":false},{"name":"GitLab","optional":true}],"status":"live","first_seen_at":"2026-03-20T08:56:04Z","employer_posted_date":"2026-10-05","last_verified_at":"2026-10-29T13:47:37Z","board_verified":true,"closed_at":null,"days_open":223,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":222},"description":"Senior Backend Engineer - Java\nLocation: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent\nPower the platforms behind modern finance. Shape cloud-native solutions with Javaat their core.\nThe Role\nWe’re seeking a Senior Backend Engineer (Java) to join our Technology & Engineering team. You’ll bring expertise in building robust, scalable, cloud-native applications using Java, Spring Boot, and AWS. Working on high-impact platforms for Tier 1 financial institutions, you’ll help shape backend architecture, champion engineering best practices, and contribute to the evolution of modern banking technology. You'll also embrace AI-enabled ways of working, using approved AI and automation tools where appropriate to improve engineering productivity, accelerate delivery, and enhance software quality while applying sound engineering judgement and responsible AI practices.\nWhat You’ll Do\nDesign and build cloud-native, microservices-based applications using Java(11+) and Spring Boot.\nDeliver enterprise-ready solutions on AWS, applying modern engineering practices and AI-enabled development approaches where appropriate to improve delivery efficiency and code quality.\nBuild, maintain, and optimise CI/CD pipelines to support secure, scalable, and reliable software deployments.\nDevelop comprehensive automated tests and promote quality-driven engineering practices across the software development lifecycle.\nCollaborate with agile teams to solve complex technical challenges, contribute to architecture decisions, and encourage the responsible use of approved AI tools and automation to enhance collaboration and delivery.\nWhat We’re Looking For\nStrong expertise in Java(11, 17, 21+) and Spring Boot, with experience building enterprise-grade backend applications.\nDeep knowledge of public cloud platforms, preferably AWS, alongside cloud-native, microservices, and event-driven architectures.\nProven experience with CI/CD pipelines, SQL and NoSQL databases, Kafka, JavaStreaming, and modern software engineering practices.\nFamiliarity with Infrastructure as Code (for example, CloudFormation), distributed systems, secure application design, and scalable cloud deployments.\nExperience using AI-enabled tools responsibly to improve engineering productivity while maintaining appropriate human oversight, governance, security, and software quality.\nBonus Points For\nExperience using GitLab for CI/CD pipelines and Cucumber for BDD test automation.\nAWSCertified Solutions Architect (Associate or Professional).\nKnowledge of CQRS patterns, performance testing strategies, and application observability.\nCuriosity to explore emerging cloud technologies, responsible AI, and automation to continually improve engineering practices.\nExperience delivering customer-facing or business-critical applications within financial services.\nWhy Join Capco\nDeliver high-impact technology solutions for Tier 1 financial institutions.\nWork in a collaborative, flat, and entrepreneurial consulting culture.\nAccess continuous learning, training, and industry certifications.\nBe part of a team shaping the future of digital financial services.\nHelp shape the future of digital transformation across Financial Services & Energy.\nBenefits\nWe offer a competitive, people-first benefits package designed to support every aspect of your life:\nCore Benefits: Discretionary bonus, competitive pension, health insurance, life insurance and critical illness cover.\nMental Health: Easy access to CareFirst, Unmind, Aviva consultations, and in-house first aiders.\nFamily-Friendly: Maternity, adoption, shared parental leave, plus paid leave for sickness, pregnancy loss, fertility treatment, menopause, and bereavement.\nFamily Care: Eight complimentary backup care sessions for emergency childcare or elder care.\nHoliday Flexibility: Five weeks of annual leave with the option to buy or sell holiday days based on your needs.\nContinuous Learning: Your growth, your way - minimum 40 hours of training annually through workshops, certifications, and e-learning. You'll also be assigned a Business Coach from day one to support your career development.\nHealthcare Access: Convenient online GP services.\n Extra Perks: Wellhub (Gympass), travel insurance, Tastecard, season ticket loans, Cycle to Work, and dental insurance.\nInclusion at Capco\nWe’re committed to making our recruitment process accessible and straightforward for everyone. If you need any adjustments at any stage, just let us know-we’ll be happy to help. We value each person’s unique perspective and contribution. At Capco, we believe that being yourself is your greatest strength. Our #BeYourselfAtWork culture encourages individuality and collaboration-a mindset that shapes how we work with clients and each other every day.","description_format":"text","description_chars":4785,"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":["Annual leave","Continuous learning","Dental insurance","Health insurance","Life insurance","Parental leave"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["RegTech, AML & Compliance","IT Consulting & Digital Transformation","Management Consulting"],"lifecycle":[{"event":"open","at":"2026-03-20T08:56:04Z"}],"visa":[],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.235,"p_room":0.28,"age_days":222,"expected_fill_days":42,"reasons":["conf:0","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-29T05:49:05Z"},"pay":null,"html_url":"https://alion.io/job/capco-poland-senior-backend-engineer-java","json_url":"https://alion.io/job/capco-poland-senior-backend-engineer-java.json","meta":{"generated_at":"2026-10-29T17:14:52Z","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":25803,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":1444},"rest":"https://alion.io/mcp/rest/get_company?id=1444"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcapco-poland-senior-backend-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%2Fcapco-poland-senior-backend-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%2Fcapco-poland-senior-backend-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/capco-poland-senior-backend-engineer-java\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcapco-poland-senior-backend-engineer-java"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3523}},{"tool":"search_jobs","arguments":{"company":"capco.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3523},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"}}