{"id":3579351,"url":"https://alion.io/job/sunsoft-online-senior-net-developer-c-phoenix-az-hybrid","title":"Senior .NET Developer (C#) , Phoenix, AZ (Hybrid)","company":{"id":4447330,"name":"SunSoft Online","domain":"sunsoftonline.com","url":"https://alion.io/company/sunsoft-online","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Zoho Recruit","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"contractor","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Phoenix, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":110000,"max_usd":205000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":3667},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"ASP.NET Core","optional":false},{"name":"Bootstrap","optional":false},{"name":"C#","optional":false},{"name":"Entity Framework Core","optional":false},{"name":"GitHub","optional":false},{"name":"JavaScript","optional":false},{"name":"MS SQL","optional":false},{"name":"React.js","optional":false},{"name":"Redux","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false},{"name":"SSIS","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-11-01T00:59:21Z","employer_posted_date":"2026-11-01","last_verified_at":"2026-11-06T09:35:27Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":5},"description":"Senior .NET Developer (C#) , Phoenix, AZ (Hybrid)\nLocation:Phoenix, AZ 85007 , Hybrid (local Phoenix only)\nType:Contract (18 months) |Start:Tentative, pending interviews/onboarding\nAbout the Role\nSunSoft Online is seeking a Senior .NET Developer for a contract opportunity with an Arizona state agency. You'll design, build, test, and debug web applications for business systems, working full life-cycle development with strong SQL and modern .NET/React front-end skills. This is a hybrid role: onsite as needed during the first 3 months for training/ramp-up, then typically once a week or less.\nKey Responsibilities\nDesign, code, test, debug, and document web applications using full life-cycle development\nWrite and optimize complex SQL (T-SQL tuning, refactoring, performance)\nConduct unit testing and prepare test data to meet specifications\nAnalyze automation requests; create work plans, schedules, and time/cost estimates\nProduce technical documents (technical specs, design docs)\nInterface with users for enhancements, maintenance, and problem resolution\nPrepare project status reports and attend technical meetings\nRequired\n5+ years of .NET / C# experience\nSQL expert (T-SQL optimization, refactoring, performance tuning)\nExperience writing user stories\nPreferred\nEDI transactions, DevOps, GitHub, Agile, Bootstrap\nKey Skills\nExpert C#/.NET, Visual Studio, ASP.NET 4.0+, .NET Core, Entity Framework, Web Services, Expert SQL Server / T-SQL, SSIS, JavaScript, Bootstrap, React (hooks, Redux/Context API), TypeScript, RESTful API integration\nAdditional Details\nLocal to Phoenix only (current location must be on resume)\nAvailable for an in-person interview within one week\nAble to start within two weeks of an offer\nHireRight background check and drug screening\nTo apply, submit your resume with your current city and state listed.","description_format":"text","description_chars":1838,"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":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Information Technology","IT Consulting & Digital Transformation"],"lifecycle":[{"event":"open","at":"2026-11-01T00:59:21Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring 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