{"id":3705702,"url":"https://alion.io/job/cit-mid-level-net-developer-brazil-3","title":"Mid-Level .NET Developer, Brazil","company":{"id":957,"name":"CI&T","domain":"ciandt.com","url":"https://alion.io/company/ciandt","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"A","score":94,"open_postings":20,"ghost_share":0,"stale_share":0.4,"repost_share":0.05,"time_to_fill_p50_days":14,"computed_at":"2026-11-05T05:54:30Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Brazil"],"countries":["BR"],"hiring_countries":["BR"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ASP.NET Core","optional":false},{"name":"AWS","optional":false},{"name":"Bitbucket","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"Git","optional":false},{"name":"MySQL","optional":false},{"name":"Playwright","optional":false},{"name":"PostgreSQL","optional":false}],"status":"live","first_seen_at":"2026-11-03T20:02:11Z","employer_posted_date":"2026-11-03","last_verified_at":"2026-11-05T12:28:47Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"We are hiring a Mid-Level .NET Developer to maintain and improve our web applications built with . NET and React. A key focus of this role is modernizing how the applications handle user login and security (authentication and authorization), and updating our code to use newer .NET Core versions.\nYou will work with a team that values clear communication and collaboration. You will talk directly with stakeholders to understand what needs to be done and help prioritize tasks.\nWhat You Will Do\nMaintain and improve existing ASP.NET and .NET Core web applications\nDesign and build modern login and security systems (OAuth2, OIDC, JWT, and identity providers)\nPlan and execute upgrades to newer .NET Core versions\nWork with AWS, MySQL, PostgreSQL, and external services\nUse Bitbucket and automated testing tools (Playwright) to deliver quality code\nWork with CI/CD pipelines to automate testing and deployment\nCommunicate in Englishwith stakeholders to discuss priorities and understand requirements\nWhat You Need to Know\n5+ years of professional experience with .NET (C#) and web development\nProven experience with authentication and authorization systems\nProven experience with upgrading .NET versions\nExperience with React in production applications\nExperience with AWS and relational databases (MySQL, PostgreSQL)\nExperience with third-party API integrations\nComfortable with Bitbucket/Git and version control\nExperience with automated testing (Playwright is a plus)\nAdvanced English proficiency and strong communication skills#LI-THAI23","description_format":"text","description_chars":1540,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[{"name":"Brazil","iso":"BR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Outsourcing & Dedicated Teams","Custom Software Development","AI Consulting & Integration","Data Engineering & Migration Services"],"lifecycle":[{"event":"open","at":"2026-11-03T20:59:01Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":1,"expected_fill_days":14,"reasons":["conf:3","velocity","win:early","comp:brand"],"computed_at":"2026-11-05T05:54:30Z"},"pay":null,"html_url":"https://alion.io/job/cit-mid-level-net-developer-brazil-3","json_url":"https://alion.io/job/cit-mid-level-net-developer-brazil-3.json","meta":{"generated_at":"2026-11-05T12:47:57Z","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":16511,"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":957},"rest":"https://alion.io/mcp/rest/get_company?id=957"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcit-mid-level-net-developer-brazil-3"},{"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%2Fcit-mid-level-net-developer-brazil-3"},{"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%2Fcit-mid-level-net-developer-brazil-3"},{"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/cit-mid-level-net-developer-brazil-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcit-mid-level-net-developer-brazil-3"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3705702}},{"tool":"search_jobs","arguments":{"company":"ciandt.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3705702},"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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