{"id":690545,"url":"https://alion.io/job/lineten-senior-software-engineer-c-net","title":"Senior Software Engineer (C# / .Net)","company":{"id":697743,"name":"LineTen","domain":"lineten.com","url":"https://alion.io/company/lineten","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","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":{"min_usd":87000,"max_usd":166000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":125},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Azure","optional":false},{"name":"C#","optional":false},{"name":"Entity Framework Core","optional":false},{"name":"Redis","optional":false},{"name":"TypeScript","optional":false},{"name":"Vue.js","optional":false},{"name":"WebSockets","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-09-03T11:36:34Z","employer_posted_date":"2026-09-03","last_verified_at":"2026-10-20T01:56:57Z","board_verified":true,"closed_at":null,"days_open":46,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":46},"description":"What we do\nLineTen is on a mission to crack the code on urban delivery. By leading with our values and putting carrier partners first, we are paving the way for better delivery experiences. LineTen is a new approach to delivery with a free carrier API and an operations management platform for shippers. We're building the first global data-driven last-mile network that has the potential to solve industry-wide problems.\nWe’re hiring a Senior Software Engineer who treats software as a craft, not a checklist. You’ll join a small, high-trust team where ownership is expected, curiosity is encouraged, and outcomes matter more than activity. This is not a ticket-factory role: you’ll be expected to think critically, challenge assumptions, design robust solutions, and take responsibility for their long-term success.\nYou’ll work across backend services, distributed systems and frontend integrations, with a strong focus on correctness, maintainability and architectural clarity. You’ll also use AI-assisted development tools responsibly, understanding that speed only matters when paired with strong design, testing and review discipline.\nHow you’ll work\nOperate with high ownership in a low-process environment\n\nProactively look for what can be improved rather than waiting for direction\n\nValue correctness, clarity and maintainability over “it just works”\n\nWork outside strict role boundaries when needed, without feeding burnout culture\n\nCommunicate technical decisions clearly and push back constructively when required\n\nCore technical skills\nC# / .NET 8+, Entity Framework Core, async/await, MediatR / CQRS\n\nStrong understanding of distributed systems: consistency models, event-driven patterns, idempotency, race conditions\n\nExperience with Redis caching, Azure Blob Storage, and data-modelling trade-offs\n\nAPI design: RESTful contracts, versioning, webhooks, long-running operations (202 Accepted patterns)\n\nReal-time & frontend integration: SignalR / WebSockets, SPA frameworks (Vue / Nuxt or similar), TypeScript\n\nWhat good looks like\nYou leave systems clearer, more correct, and easier to evolve\n\nProblems are solved at the right level, not patched over\n\nTrade-offs are explicit and understood\n\nOther engineers trust your judgement and the quality of your code","description_format":"text","description_chars":2272,"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":[],"lifecycle":[{"event":"open","at":"2026-09-11T00:56:54Z"}],"visa":[],"liveness":{"score":28,"band":"fade","label":"Fading","p_open":1,"p_active":0.621,"p_room":0.45,"age_days":45,"expected_fill_days":26,"reasons":["conf:3","win:tail"],"computed_at":"2026-10-19T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/lineten-senior-software-engineer-c-net","json_url":"https://alion.io/job/lineten-senior-software-engineer-c-net.json","meta":{"generated_at":"2026-10-20T03:03:45Z","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":3370,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-21T00:00:00Z"}},"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":697743},"rest":"https://alion.io/mcp/rest/get_company?id=697743"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Flineten-senior-software-engineer-c-net"},{"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%2Flineten-senior-software-engineer-c-net"},{"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%2Flineten-senior-software-engineer-c-net"},{"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/lineten-senior-software-engineer-c-net\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Flineten-senior-software-engineer-c-net"}]}