{"id":4045609,"url":"https://alion.io/job/cognizant-senior-net-api-developer","title":"Senior .NET API Developer","company":{"id":85,"name":"Cognizant","domain":"cognizant.com","url":"https://alion.io/company/cognizant","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Cognizant Careers","truth_index":{"grade":"A","score":87,"open_postings":186,"ghost_share":0,"stale_share":0.473,"repost_share":0.059,"time_to_fill_p50_days":24,"computed_at":"2026-11-10T06:52:35Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Halifax, Canada"],"countries":["CA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"ASP.NET Core","optional":false},{"name":"Azure DevOps","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"Jira","optional":false},{"name":"Microsoft Entra ID","optional":false},{"name":"Rest API","optional":false},{"name":"Scrum","optional":false},{"name":"SQL","optional":false},{"name":"Azure","optional":true},{"name":"Rest-Assured","optional":true}],"status":"live","first_seen_at":"2026-11-10T14:29:06Z","employer_posted_date":"2026-11-10","last_verified_at":"2026-11-10T23:44:07Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Senior .NET API Developer (Payments & Microservices)\nAbout the Role\nAs a Senior .NET API Developer, you will make an impact by designing, developing, and supporting scalable, secure, and high-performance APIs and microservices that power critical payment and financial services applications. You will work closely with cross-functional teams to deliver enterprise-grade solutions using modern .NET technologies while contributing to architecture, API governance, and Agile delivery practices.\nIn This Role, You Will\nDesign and develop scalable, secure, and high-performance RESTful Web APIs and microservices using C#, .NET/.NET Core, ASP.NET Core Web API, and ASP.NET MVC Core following API-first design principles and industry best practices.\nOwn the end-to-end API lifecycle including API design, development, integration, testing, deployment, versioning, maintenance, and production support.\nDesign and implement authentication and authorization solutions using OAuth 2.0, OpenID Connect (OIDC), JWT bearer tokens, claims-based authorization, RBAC, and enterprise identity providers such as Microsoft Entra ID.\nDevelop and maintain microservices-based applications with a focus on resiliency, security, performance, observability, and scalability.\nImplement API management capabilities using Apigee, including gateway integration, traffic management, security policies, and API governance.\nDesign, develop, and optimize database solutions, SQL queries, and stored procedures to support high-volume transactional systems.\nParticipating in Agile ceremonies including sprint planning, backlog refinement, design reviews, code reviews, and retrospectives.\nUtilize Azure DevOps and Jira for source control, CI/CD, work item management, and release planning.\nCollaborate with architects, product owners, and business stakeholders to deliver innovative and reliable solutions supporting cards and payments platforms.\nRequired Qualifications\n8+ years of experience developing enterprise applications using C#, .NET/.NET Core, ASP.NET Core Web API, and ASP.NET MVC Core.\nStrong expertise in REST API development, API-first design methodologies, and microservices architecture.\nHands-on experience with API management platforms, preferably Apigee.\nExperience implementing secure authentication and authorization using OAuth 2.0, OpenID Connect, JWT, and enterprise identity management solutions.\nStrong SQL and relational database experience, including data modeling, query optimization, and stored procedure development.\nExperience working in Agile/Scrum environments utilizing Azure DevOps and Jira.\nProven experience developing solutions within the cards and payments domain.\nPreferred Qualifications\nExperience designing distributed systems and cloud-native applications.\nKnowledge of payment card processing, authorization, settlement, dispute, and chargeback workflows.\nExperience implementing CI/CD pipelines and DevOps best practices.\nExperience mentoring developers and contributing to architecture and technical design decisions.\nExperience working within highly regulated financial services environments.\nWork Model\nWe believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role's business requirements, this is a hybrid position requiring associates to work onsite 2-3 days per week in Halifax, Nova Scotia (NS). The remaining days may be worked remotely, subject to project, client, and business requirements.\nRegardless of your working arrangement, we are here to support a healthy work-life balance through our various wellbeing programs. The working arrangements for this role are accurate as of the date of posting and may change based on project, client, and business needs. Rest assured, we will always be clear about role expectations.\nSalary and Other Compensation\nThe annual salary for this position is CAD $61,500 - $104,500, depending on experience and other qualifications of the successful candidate.\nThis position is also eligible for Cognizant's discretionary annual incentive program, based on performance and subject to the terms of Cognizant's applicable plans.\nThe salary range identified above is intended to provide potential candidates with a general understanding of the compensation associated with the position. Final compensation decisions are based on a variety of factors including experience, qualifications, skills, education, and geographic location.\nBenefits\nCognizant offers a comprehensive and competitive benefits package designed to support the health, wellbeing, and financial security of our associates, including:\nComprehensive Medical, Dental, and Vision Coverage\nLife Insurance and Disability Coverage\nEmployee Assistance Program (EAP)\nRegistered Retirement Savings Plan (RRSP) and applicable company programs\nPaid Vacation and Personal Days\nPaid Statutory Holidays\nEmployee Wellness Programs\nEmployee Resource Groups and Inclusion Networks\nLearning and Development Programs\nCertification and Professional Development Support\nEmployee Referral Program","description_format":"text","description_chars":5052,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Hybrid work","Life insurance","Professional development","Retirement plans","Wellness"],"hiring_locations":[{"name":"Canada","iso":"CA","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","IT Outsourcing & Dedicated Teams","Engineering Services","Cloud Consulting & Migration"],"lifecycle":[{"event":"open","at":"2026-11-10T23:44:07Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":24,"reasons":["conf:1","win:early","comp:brand"],"computed_at":"2026-11-11T01:40:26Z"},"pay":null,"html_url":"https://alion.io/job/cognizant-senior-net-api-developer","json_url":"https://alion.io/job/cognizant-senior-net-api-developer.json","meta":{"generated_at":"2026-11-11T01:40:26Z","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":37,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-12T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":85},"rest":"https://alion.io/mcp/rest/get_company?id=85"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcognizant-senior-net-api-developer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fcognizant-senior-net-api-developer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fcognizant-senior-net-api-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/cognizant-senior-net-api-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcognizant-senior-net-api-developer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4045609}},{"tool":"search_jobs","arguments":{"company":"cognizant.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4045609},"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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