Job Summary: ALTEN Mexico is seeking a Senior .NET Developer to design, develop, and integrate .NET services and APIs, ensuring software security, performance, and quality within a collaborative environment. Key Highlights: 1. Design, develop, and integrate .NET services and APIs 2. Collaborative and dynamic environment 3. Collaboration with business units, architecture teams, and development teams **ALTEN Mexico** is looking for a **Senior .NET Developer** to join our team. We are an engineering company delivering specialized solutions for engineering, technology, and product development projects across multiple sectors, including **Automotive, Medical Devices, Energy, Aerospace, Banking and Insurance, Telecommunications, and Multimedia**. At ALTEN, we seek innovators who share our passion for quality and excellence in engineering. Our team of over 600 professionals delivers design, development, programming, and validation solutions within a collaborative and dynamic environment. **Job Objective:** Design, develop, and integrate **.NET services and APIs** supporting the organization’s strategic business goals, ensuring **security, performance, and software quality**. This role involves **requirements analysis, detailed design, coding, testing (manual and automated), documentation, and deployments on Azure**, collaborating with business units, architecture teams, and project teams under both **Agile and Waterfall methodologies**. **Key Responsibilities and Deliverables:** * Program, **test, and debug** .NET components, ensuring **solution design quality**. * Make key **design and integration decisions**, effectively communicating them to implementation teams. * Collaborate with **business units, architects, and development teams** to identify technical/functional needs and priorities. * Manage **standard and evolving system processes**, ensuring alignment with **software design best practices**. * Work with requirements teams to understand **scope, priorities, and development criteria**. * Deliver **new capabilities** and/or **resolve incidents** in business applications. * Contribute to **estimations, project plans**, and **feasibility, cost, timeline**, and compatibility analyses. * Ensure required **application performance levels** are met. **Requirements** **Bachelor’s degree** in **Computer Science, Information Systems**, or related field. Mandatory Requirements: * **5+ years** of **.NET** development experience building **web services/APIs**. * Proficiency in **.NET** (multithreading, generics, serialization, thread pools). * Development of **Web Services / Web APIs** and related technologies (**WSDL, SOAP, REST**), including **service consumption**. * **Authentication and authorization** for **Web APIs**. * **Deployments on Azure** (App Services / AKS or others). * **CI/CD using GitHub Actions** for .NET applications. * Solid expertise in **T‑SQL**, **MS SQL Server**, and data access using **Dapper**. * Front-end development with **HTML, CSS, JavaScript, React.js**, including cross-browser compatibility and responsive design. * Experience across the **entire software development lifecycle**, teamwork with **strong attention to detail** and **effective communication**. * Proficiency with **Visual Studio** and **VS Code**. Desirable Requirements: * **Docker** / orchestration (e.g., **Kubernetes**) and **streaming** (e.g., **Kafka**); cloud integrations. * Experience in **healthcare/insurance** domains. * Monitoring of critical applications using **Datadog**, **Azure Application Insights**, and **log analysis**. * Ability to work under **high pressure**, with **flexibility** for non-standard working hours when required by business needs. Software and Tools: * **.NET**, **C#**, **Web APIs (REST/SOAP)**. * **Azure** (App Services, **AKS**), **GitHub Actions** (CI/CD). * **MS SQL Server**, **T‑SQL**, **Dapper**. * **Visual Studio**, **VS Code**. * (Desirable) **Docker**, **Kafka**, **Datadog**, **Azure Application Insights**. **Benefits** **We offer:** * Base salary * Major Medical Expense Insurance (including dental and vision plans) * 15-day year-end bonus * 25% vacation premium * 12 vacation days (starting from the first year) * Social Security coverage * Profit-sharing (PTU) * Bi-weekly grocery vouchers