{"id":2597744,"url":"https://alion.io/job/datacom-contract-senior-integration-engineer-c","title":"CONTRACT - Senior Integration Engineer - C#","company":{"id":3438,"name":"Datacom","domain":"datacomgroup.com","url":"https://alion.io/company/datacom","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"A","score":89,"open_postings":11,"ghost_share":0,"stale_share":0.455,"repost_share":0,"time_to_fill_p50_days":34,"computed_at":"2026-10-15T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Auckland, New Zealand"],"countries":["NZ"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":46000,"max_usd":136000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":6933},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ASP.NET Core","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"Git","optional":false},{"name":"Kotlin","optional":false},{"name":"Rest API","optional":false},{"name":"Swift","optional":false}],"status":"live","first_seen_at":"2026-10-15T07:41:24Z","employer_posted_date":"2026-10-15","last_verified_at":"2026-10-16T02:21:07Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"About the Role\nWe're looking for an experienced Senior Integration Engineer with strong C#/.NET expertise and hands-on mobile engineering capability to join us on a contract engagement, with an immediate start strongly preferred.\nYou'll work across backend integration and mobile applications, delivering secure, high-performing solutions in a complex enterprise environment.\nThis is a senior, hands-on engineering role requiring someone who can hit the ground running, work independently and contribute across both C# integration development and native Android and iOS engineering.\nTo be considered, you must be based in Auckland and have current New Zealand working rights. Experience across both integration and mobile engineering is essential.\nWhat You'll Do\nDesign, develop and maintain backend APIs, services and system-to-system integrations using C#/.NET.\nDevelop ASP.NET Web APIs with a strong focus on performance, security and reliability.\nContribute to native Android and iOS development using Kotlin and Swift.\nWork closely with cross-functional teams to translate requirements into practical technical solutions.\nApply strong engineering practices, including clean code, testing, troubleshooting and code reviews.\nUse Git and enterprise CI/CD pipelines to support reliable software delivery.\nInvestigate technical issues and contribute to production support and incident resolution as required.\nWhat You'll Bring\nExtensive senior-level experience in C#/.NET integration engineering, including APIs, services and system-to-system integrations.\nProven experience developing secure, high-performing ASP.NET Web APIs.\nHands-on mobile engineering experience across both Android using Kotlin and iOS using Swift.\nStrong software engineering practices, including testing, troubleshooting and code reviews.\nExperience using Git and CI/CD pipelines within an enterprise environment.\nThe ability to work independently and take ownership of technical delivery.\nClear communication skills and confidence working with technical and non-technical stakeholders.\nIt Would Be Great If You Also Have\nExperience with .NET 10.\nPrevious financial-services experience.\nExperience with REST APIs, microservices and enterprise integration patterns.\nExperience supporting production systems and resolving incidents.\nIf you're an Auckland-based senior engineer who combines strong C# integration expertise with hands-on Kotlin and Swift development, we'd love to hear from 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