Senior C#/.NET Developer

Empowered by our motto, "Making Data Matter", Keyrus stands at the forefront of global consultancy in Data & Analytics, AI & Machine Learning, and Digital Transformation. With a presence in 27 countries across 4 continents, we're on a mission to elevate the impact of data.We are data experts, guiding our clients through their data journey regardless of their level of maturity in analytics. As an end-to-end partner, we address varied challenges that our clients face, from Advanced Analytics, Cloud, Data Governance, Visualisation to Enterprise Performance Management, from advisory to delivery. With more than 3200 employees in all corners of the world, Keyrus is dedicated to helping businesses taking advantage of the Data and Digital paradigm to enhance their performance, facilitating, and accelerating their transformation, and generating new drivers of growth, competitiveness, and sustainability.Job Summary Keyrus is seeking a Senior C# Developer to join a high-impact project focused on building secure, cloud-native data applications for the insurance sector. The mission is to design and implement scalable, compliant systems that handle sensitive personal and health information (PII/PHI) across regions. This role requires strong backend development expertise in C#/.NET, cloud integration with Azure, and familiarity with modern UI frameworks like Blazor for internal tool development. This position is remote, but you must be based in Portugal or Spain. Note: All applications/CV’s must be submitted in English.Key ResponsibilitiesDesign and implement microservices using C# and .NETBuild internal tools with Blazor for data visualisation, dashboards, and form-based data entryDevelop reusable UI components to enhance usability and workflow efficiencyBuild secure and auditable REST APIs for data ingestion, validation, processing, and provisioningWrite and optimise SQL queries and stored procedures for aggregation, validation, and extractionIntegrate with data privacy vaults and secure APIs for regional data accessIntegrate APIs and services with Azure App Services, API Management, Service Bus, and KubernetesApply secure coding practices: encryption, tokenisation, and authenticationImplement tokenisation/detokenization logic for PII/PHI in line with data privacy lawsManage and query Azure SQL, Snowflake, and related data systemsWork in sprints with the development team; participate in code reviewsContribute to CI/CD pipelines and deployment automation in AzureWrite unit and integration tests to ensure quality and complianceDocument code, architecture, and API contracts for audits and team useRequirements for the role6+ years of professional experience with C#/.NET backend developmentStrong knowledge of REST API design, microservices, and secure coding standardsExperience with Azure services: App Services, API Gateway, Kubernetes, Service BusSolid database skills: SQL ServerFamiliarity with Azure SQLHands-on experience with Blazor for internal web tools and data visualisation UIsFamiliarity with data tokenisation, encryption, and privacy regulation complianceProven track record of working in Agile teams, DevOps culture, and cloud-native projectsExcellent communication and documentation skillsFluent in EnglishMust be a Portuguese or European citizen or have a work permit for PortugalGood to have:Experience with data privacy vaults or API-based tokenisation servicesKnowledge of insurance or healthcare data compliance (e.g., GDPR, HIPAA)Experience working in multi-region or multi-cloud deploymentsFamiliarity with Snowflake and stored procedures knowledgePrevious contributions to setting up DevOps pipelines in Azure DevOps or GitHub ActionsWhat we offer at Keyrus Portugal:Competitive salary based on your skills & experience and according to the Data market practiceMeal allowance of €8.32 per day Flexible benefits optionPrivate Medical Insurance 22 days of annual leave (increasing every 3 years up to a maximum of 25 days)Training Program through KLX (Keyrus Learning Experience) PlatformWhy Keyrus?Joining Keyrus means joining a market leader in the Data Intelligence field and an (inter)national player in Management Consultancy and Digital Experience.Keyrus Portugal operates on five guiding pillars that shape our approach to work and collaboration – Diversity; Trust; Flexibility; Ownership & Innovation - we're dedicated to cultivating a team as diverse as the challenges we take on. We embrace and celebrate the rich variety of backgrounds, perspectives, and talents that each individual brings. We firmly believe that diversity fuels innovation, ignites creativity, and propels us towards greatness. Regardless of race, ethnicity, gender, sexual orientation, disability, age, or any other dimension of diversity, everyone is not only welcome but valued here. Join us in shaping a future where everyone can thrive!Originally posted on Himalayas

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