Senior .NET Developer

We are looking for an experienced Senior.NET Developer to join our team on building robust, enterprise-grade payment processing systems for clients across Central America and the Caribbean.

This role is ideal for someone who thrives in high-performance environments, enjoys solving complex challenges in distributed systems, and is comfortable working with financial transaction processing and secure coding practices.

You’ll play a key role in developing and maintaining scalable systems for high-volume, real-time operations, while collaborating closely with cross-functional teams including business analysts, system architects, QA engineers, and fellow developers.Responsibilities:

• Collaborate with business analysts and developers to translate business requirements into technical solutions.
• Participate in cross-departmental projects and contribute to the improvement of development standards and practices.
• Implement, test, and deploy new software modules, ensuring performance, scalability, and security.
• Research and evaluate new development tools, technologies, and standards.
• Write and maintain technical documentation and user manuals.
• Conduct performance testing, debugging, and optimization of existing systems.
• Provide technical support and contribute to disaster recovery planning.
• Assist in software installation, system updates, and troubleshooting when necessary.
• Participate in a rotating 24x7 on-call support schedule as needed.
• Be available for extended hours when project deadlines or production issues require.

Requirements::

• 5+ years of experience with distributed systems and microservices architectures.
• Bachelor’s degree in Computer Science, Engineering, or a related discipline.
• Strong understanding of REST, MVC, gRPC, aspect-oriented programming, JSON, and XML.
• Experience using tools like Polly, Serilog, Seq, and Telerik UI.
• Experience with IIS, Windows Server, and SQL Server (clustering is a plus).
• Strong background in SQL Server (small to large, high-volume databases), with and without ORMs (EF Core, LLBLGen).
• Familiarity with bus systems such as NServiceBus, RabbitMQ, or MSMQ.
• Hands-on experience in financial transaction processing, including formats like ISO-8583, BASE24, and Visa BASE I/II.
• Knowledge of EMV and 3DS card technologies.
• Experience with e-commerce and card-present integrations.
• Proficiency in containerization and orchestration technologies: Docker, Kubernetes, AKS (or similar).
• Familiarity with secure software development practices, including adherence to OWASP and PCI-DSS standards.
• Knowledge of modern SDLC processes and development methodologies.
• Experience with Git and Team Foundation Server (TFS).
• Strong troubleshooting skills and the ability to work both independently and in a collaborative team environment.
• Advanced English proficiency (spoken and written).
• Availability for extended hours and on-call support when necessary.

What’s in It for You?::

• Pase Libre on the Black plan at no cost, and discounts for family members
• Remote or hybrid work model, you choose!
• Refunds for training, courses, certifications
• Free access to e-learning platforms like Udemy
• RedPsi Therapy: preferential fees
• English lessons
• Referral program