{"id":2267387,"url":"https://alion.io/job/a1-bulgaria-net-backend-developer","title":".NET Backend Developer","company":{"id":312367,"name":"A1 Bulgaria","domain":"a1.bg","url":"https://alion.io/company/a1-5","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Sofia, Bulgaria"],"countries":["BG"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":30000,"max_usd":75000,"period":"year","method":"role_country_seniority_unknown","sample_n":15},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ActiveMQ","optional":false},{"name":"ASP.NET Core","optional":false},{"name":"Docker","optional":false},{"name":"Kubernetes","optional":false},{"name":"MS SQL","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Redis","optional":false},{"name":"Rest API","optional":false},{"name":"C#","optional":true}],"status":"live","first_seen_at":"2026-09-30T16:10:35Z","employer_posted_date":null,"last_verified_at":"2026-09-30T16:10:35Z","board_verified":false,"closed_at":null,"days_open":14,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":14},"description":"Strength. Care. Growth\n\nDid you know that A1 Bulgaria is working on international projects as well?\n\nOur wide portfolio has long past the telecom services, and we are now offering digital solutions to millions of corporate, public, and private customers.\n\nState-of-the-art technology, the latest innovations, and extremely talented professionals in various areas help us deliver the best-in-class products, services, and customer experience.\n\nYou’ll know A1 Bulgaria is the right place for you if you are driven by:\n\nOpportunities to learn and build your career.\n\nMeaningful work in a stable and fast-paced company.\n\nDiversity of people, projects, and platforms.\n\nA supportive, fun, and inspiring place to work.\n\nWould you like to join us?\n\nDaniel Yordanov is looking for a new team member.\n\nWe are looking for a talented engineer passionate in .NET technology to join our growing software development team in Sofia.\n\nYour daily routine would include:\n\nAnalyzing code, requirements, system risks, and software reliability.\n\nDeveloping new features of software products for our clients.\n\nBug fixing, customizations and software support.\n\nTaking responsibility of code quality and on-time completion of tasks.\n\nCommunicating with business consultants and participating ins daily meeting with your team.\n\nWe’ll know you can make it if you have:\n\nExperience with.NET Core with C Sharp.\n\nKnowledge in ASP.NET Core Web API and REST APIs.\n\nExperience with PostgreSQL or MSSQL or other relational DB.\n\nFamiliarity with messaging systems such as ActiveMQ.\n\nExperience with caching mechanisms (e.g., in-memory, Redis).\n\nUnderstanding of Algorithms, Data Structures, OOP, and Design Patterns.\n\nExperience with containers (Docker/Kubernetes) will be considered an advantage.\n\nOur gratitude for the job done will be eternal, but we’ll also offer you:\n\nInnovative technologies and platforms to “play” with.\n\nModern working environment for your comfort.\n\nFriendly, ambitious, and motivated teammates to support each other.\n\nThousands of online and in-person learning opportunities to grow.\n\nChallenging assignments and career development opportunities in multinational environment.\n\nAttractive remuneration package.\n\nFlexible working schedule and opportunity for home office.\n\nNumerous additional goodies, including, but not limited to free A1 services, discounts, health insurance and services, sports center, childcare, team and family events, etc.\n\nNot sure yet? See us in action in our A1 Blog.\n\nSounds good? Apply now!\n\nOnly shortlisted candidates will be contacted.","description_format":"text","description_chars":2556,"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":["Flexible schedule","Health insurance","Home office"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Smartphones"],"lifecycle":[{"event":"open","at":"2026-10-11T06:29:33Z"}],"visa":[],"liveness":{"score":56,"band":"ok","label":"Likely open","p_open":1,"p_active":0.751,"p_room":0.75,"age_days":13,"expected_fill_days":19,"reasons":["seen:13","win:late"],"computed_at":"2026-10-14T06:34:16Z"},"pay":null,"html_url":"https://alion.io/job/a1-bulgaria-net-backend-developer","json_url":"https://alion.io/job/a1-bulgaria-net-backend-developer.json","meta":{"generated_at":"2026-10-14T20:01:10Z","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":26388,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-15T00:00:00Z"}},"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":312367},"rest":"https://alion.io/mcp/rest/get_company?id=312367"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fa1-bulgaria-net-backend-developer"},{"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%2Fa1-bulgaria-net-backend-developer"},{"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%2Fa1-bulgaria-net-backend-developer"},{"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/a1-bulgaria-net-backend-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fa1-bulgaria-net-backend-developer"}]}