Senior .NET API Developer (Payments & Microservices)
About the Role
As 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.
In This Role, You Will
- Design 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.
- Own the end-to-end API lifecycle including API design, development, integration, testing, deployment, versioning, maintenance, and production support.
- Design 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.
- Develop and maintain microservices-based applications with a focus on resiliency, security, performance, observability, and scalability.
- Implement API management capabilities using Apigee, including gateway integration, traffic management, security policies, and API governance.
- Design, develop, and optimize database solutions, SQL queries, and stored procedures to support high-volume transactional systems.
- Participating in Agile ceremonies including sprint planning, backlog refinement, design reviews, code reviews, and retrospectives.
- Utilize Azure DevOps and Jira for source control, CI/CD, work item management, and release planning.
- Collaborate with architects, product owners, and business stakeholders to deliver innovative and reliable solutions supporting cards and payments platforms.
Required Qualifications
- 8+ years of experience developing enterprise applications using C#, .NET/.NET Core, ASP.NET Core Web API, and ASP.NET MVC Core.
- Strong expertise in REST API development, API-first design methodologies, and microservices architecture.
- Hands-on experience with API management platforms, preferably Apigee.
- Experience implementing secure authentication and authorization using OAuth 2.0, OpenID Connect, JWT, and enterprise identity management solutions.
- Strong SQL and relational database experience, including data modeling, query optimization, and stored procedure development.
- Experience working in Agile/Scrum environments utilizing Azure DevOps and Jira.
- Proven experience developing solutions within the cards and payments domain.
Preferred Qualifications
- Experience designing distributed systems and cloud-native applications.
- Knowledge of payment card processing, authorization, settlement, dispute, and chargeback workflows.
- Experience implementing CI/CD pipelines and DevOps best practices.
- Experience mentoring developers and contributing to architecture and technical design decisions.
- Experience working within highly regulated financial services environments.
Work Model
We 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.
Regardless 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.
Salary and Other Compensation
The annual salary for this position is CAD $61,500 - $104,500, depending on experience and other qualifications of the successful candidate.
This position is also eligible for Cognizant's discretionary annual incentive program, based on performance and subject to the terms of Cognizant's applicable plans.
The 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.
Benefits
Cognizant offers a comprehensive and competitive benefits package designed to support the health, wellbeing, and financial security of our associates, including:
- Comprehensive Medical, Dental, and Vision Coverage
- Life Insurance and Disability Coverage
- Employee Assistance Program (EAP)
- Registered Retirement Savings Plan (RRSP) and applicable company programs
- Paid Vacation and Personal Days
- Paid Statutory Holidays
- Employee Wellness Programs
- Employee Resource Groups and Inclusion Networks
- Learning and Development Programs
- Certification and Professional Development Support
- Employee Referral Program
À savoir avant de postuler
- Autorisation de travail: Cognizant ne prendra en considération que les candidats à ce poste qui sont légalement autorisés à travailler au Canada sans avoir besoin d'un parrainage de l'employeur, aujourd'hui ou à l'avenir.
- Mesures d’adaptation: Si vous avez un handicap qui nécessite des mesures d’adaptation raisonnable pour effectuer une recherche d’emploi ou poser une candidature, veuillez envoyer un courriel à [email protected] avec votre demande et vos coordonnées.
- L’IA dans notre processus de recrutement: Nous utilisons des outils d'intelligence artificielle (IA) pour trier et évaluer les candidatures efficacement. Notre équipe examine ensuite les candidatures et décide qui passe à l’étape suivante.
- Poste à pourvoir: Sauf indication contraire, ce poste est actuellement vacant et nous cherchons à le pourvoir.
- Exigences linguistiques: Nous demandons à tous les candidats de posséder une connaissance de base de l’anglais afin de faciliter les communications internes. Pour les postes au Québec, la capacité à communiquer efficacement en anglais est requise car vous fournirez des services à et collaborerez avec des parties prenantes anglophones situées hors de la province.
- Inclusion: Cognizant est un employeur souscrivant au principe de l’égalité d’accès à l’emploi. Votre candidature et votre dossier ne seront pas examinés en fonction de la race, de la couleur, du sexe, de la religion, des croyances, de l'orientation sexuelle, de l'identité de genre, de l'origine nationale, du handicap, des renseignements génétiques, de la grossesse, du statut d'ancien combattant ou de toute autre caractéristique protégée par les lois fédérales, provinciales ou locales.
À propos de Cognizant
Cognizant (NASDAQ: CTSH) est un AI Builder et une entreprise de services numériques (ESN) élaborant des solutions complètes d’IA maximisant les investissements pour des résultats concrets. Sa profonde expertise des métiers, des processus et des technologies lui permet d’intégrer dans les systèmes technologiques le contexte unique de chaque organisation de l’ingénierie à la production à l’échelle. Son objectif: améliorer l’efficacité des équipes, créer de la valeur et permettre aux grandes entreprises de rester performantes dans un monde qui évolue rapidement. Pour en savoir plus: cognizant.ai ou @cognizant.











