{"id":3704765,"url":"https://alion.io/job/sainsburys-senior-full-stack-net-engineer","title":"Senior Full-Stack .Net Engineer","company":{"id":2631165,"name":"Sainsbury's","domain":"sainsburys.co.uk","url":"https://alion.io/company/sainsburys-jobs","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"A","score":100,"open_postings":11,"ghost_share":0,"stale_share":0.091,"repost_share":0,"time_to_fill_p50_days":8,"computed_at":"2026-11-05T05:54:30Z"}},"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":["London, United Kingdom"],"countries":["GB"],"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":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"GCP","optional":false},{"name":"Kubernetes","optional":false},{"name":"React.js","optional":false},{"name":"Scrum","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"C#","optional":true},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-29T11:34:48Z","employer_posted_date":"2026-10-29","last_verified_at":"2026-11-05T12:43:10Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":7},"description":"About the Role\nWe’re looking for a talented Senior Full stack .NET Engineer to help design, build and deliver high-performing technology that improves customer experience, drives business efficiency and reduces operating costs.\nYou’ll help shape technical direction and mentor others whilst championing engineering excellence and be a valued contributor to our broader engineering community.\nYou’ll bring curiosity, analytical thinking and a willingness to challenge how things are done - always looking for ways to improve engineering practices within your team.\nWhat You’ll Do\nDesign and build large-scale, high-performance services using the latest technologies and engineering standards.\nWork with technologies such as React.js, SQL, MongoDB, Kubernetes, Docker, serverless functions and event-driven architecture.\nImplement and enhance cloud-based solutions across AWS and Google Cloud Platform.\nHelp lead the technical roadmap, shaping the long-term architecture and engineering strategy.\nShare knowledge, contribute to best practices and enable continuous improvement within the engineering community.\nLead the design and support of internal frameworks that enhance engineering capabilities across the Sainsbury’s Group.\nEngineer across the entire product lifecycle-from inception through to decommissioning.\nConsider cost, scalability, and operational support implications in your technical decision-making.\n\nWho You Are\nYou’re a proactive, driven engineer who is passionate about modern engineering practices, cloud technology and delivering high-quality solutions. You promote agile ways of working and enjoy solving complex problems in a collaborative environment.\nEssential Criteria\nStrong experience in .NET development and associated engineering principles.\nProficiency with relational and non-relational databases (e.g., SQL, MongoDB).\nExperience working with cloud platforms (AWS and/or Google Cloud Platform).\nKnowledge of React.js/Typescript and modern frontend development standards.\nExperience with Docker, Kubernetes, and container orchestration.\nUnderstanding of serverless functions and event-driven architecture.\nSolid understanding of software design, security principles, and DevSecOps practices.\nHands-on experience with CI/CD pipelines and infrastructure-as-code.\nCuriosity for emerging technologies and a commitment to continuous learning.\nExcellent problem-solving, communication, and mentoring skills.\nEmpathy and the ability to support, coach, and empower colleagues to deliver their best.\nSelf-driven with a desire to improve processes, teams, and engineering practices.\n\nWays of Working\nStrong advocate for agile/lean delivery methodologies.\nAbility to collaborate effectively across multidisciplinary teams.\nSelf-driven mindset with a passion for continuous learning and innovation.\n\nWhat’s in It for You\nColleague discount across Sainsbury’s, Argos and Habitat\nCompetitive holiday allowance\nBonus scheme\nPension plan\nFlexible / smarter working policy\nAccess to a wide range of discounts (gyms, restaurants, retail and more)\n We’d all like amazing work to do, and real work-life balance. That’s waiting for you at Sainsbury’s. Think about the scale it takes to feed the nation. The level of data, transactions and variety involved. Then you’ll realise this is a modern software engineering environment, because it has to be. We’ve made significant investment in the standards and principles that shape how we work. We iterate, learn, experiment and champion ways of working such as Agile, Scrum and XP. So you can look forward to exciting opportunities across everything from AI to reusable tech. We are committed to being a truly inclusive retailer, so you’ll be welcomed whoever you are and wherever you work. Around here, there’s always the chance to try something new - whether that’s as part of an evolving team or somewhere else across the business - and we take development seriously and promise to support you. We also recognise and celebrate colleagues when they go the extra mile and, where possible, offer flexible working. When you join our team, we’ll also offer you an amazing range of benefits. Here are some of them:\nStarting off with colleague discount, you'll be able to get 10% off at Sainsbury's, Argos, TU and Habitat after 4 weeks. This increases to 15% off at Sainsbury’s every Friday and Saturday and 15% off at Argos every pay day. We've also got you covered for your future with our pensions scheme and life cover. You'll also be able to share in our success as you may be eligible for a performance-related bonus of up to 20% of salary, depending on how we perform. \nYour wellbeing is important to us too. You'll receive an annual holiday allowance, and you can buy additional holiday. We also offer other benefits that will help your money go further such as season ticket loans, interest free car loan of up to £10k, cycle to work scheme, health cash plans, pay advance (where you can access some of your pay before pay day) as well access to a great range of discounts from hundreds of other retailers. And if you ever need it there is also an Employee Assistance Programme, you will also be eligible for private healthcare too.\nMoments that matter are as important to us as they are to you which is why we give up to 26 weeks’ pay for maternity or adoption leave and up to 4 weeks’ pay for paternity leave. \nPlease see www.sainsburys.jobs for a range of our benefits (note, length of service and eligibility criteria may apply).","description_format":"text","description_chars":5494,"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":["Continuous learning","Flexible schedule"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Transportation & Logistics","Logistics"],"lifecycle":[{"event":"open","at":"2026-11-03T20:39:37Z"}],"visa":[],"liveness":{"score":65,"band":"ok","label":"Likely open","p_open":1,"p_active":0.872,"p_room":0.75,"age_days":6,"expected_fill_days":8,"reasons":["conf:5","velocity","win:late","comp:brand"],"computed_at":"2026-11-05T05:54:30Z"},"pay":null,"html_url":"https://alion.io/job/sainsburys-senior-full-stack-net-engineer","json_url":"https://alion.io/job/sainsburys-senior-full-stack-net-engineer.json","meta":{"generated_at":"2026-11-05T12:46:37Z","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":16478,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-06T00:00:00Z"}},"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":2631165},"rest":"https://alion.io/mcp/rest/get_company?id=2631165"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsainsburys-senior-full-stack-net-engineer"},{"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%2Fsainsburys-senior-full-stack-net-engineer"},{"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%2Fsainsburys-senior-full-stack-net-engineer"},{"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/sainsburys-senior-full-stack-net-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsainsburys-senior-full-stack-net-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3704765}},{"tool":"search_jobs","arguments":{"company":"sainsburys.co.uk","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3704765},"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. 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