Senior .NET Engineer

This is us

At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our 6000+ specialists provide a full spectrum of services, including business and tech advisory, enterprise solutions, CX, UX, and UI design, managed services, product development, and software development.

This is the job

In Argentina (CABA) , we are looking for a Senior .NET Engineer to join a dynamic team supporting innovative solutions within the banking and financial services sector. You will play a key role in developing and maintaining high-performance applications that support critical business areas such as Online Banking, Payments, Transfers, etc.

Join us and help shape the future of digital banking through secure, scalable, and innovative technology solutions!

This is you

• 5+ years of experience developing with . NET Core (additional Java experience is also valuable).

• Solid understanding of REST API design and development.

• Hands-on experience with containerization technologies such as Docker.

• Experience working with orchestration platforms including Kubernetes and/or OpenShift.

• Knowledge of event-driven architectures and messaging platforms such as Kafka.

• Experience with relational databases, particularly Oracle and PostgreSQL.

• Understanding of software development best practices, including code quality, testing, and CI/CD principles.

• Functional knowledge of banking products and processes.

• Native Spanish proficiency and Intermediate English.

Nice-to-have skills:

• Previous experience in the banking, fintech, or digital financial services industry.

• Experience working in Agile/Scrum environments.

• Experience integrating with third-party banking platforms and payment solutions.

This is your role

• Design, develop, test, and maintain scalable applications and services using .NET technologies.

• Build and enhance RESTful APIs that support critical banking and digital channel functionalities.

• Collaborate with cross-functional teams to deliver high-quality software solutions.

• Participate in system architecture discussions and technical decision-making.

• Develop and maintain containerized applications using Docker and Kubernetes/OpenShift.

• Implement integrations using Kafka and other messaging technologies.

• Work with Oracle and PostgreSQL databases to ensure data integrity, performance, and reliability.

• Troubleshoot production issues and provide timely resolutions.

• Contribute to code reviews, technical documentation, and continuous improvement initiatives.

• Ensure applications meet security, performance, and regulatory requirements relevant to the banking industry.

At Avenga, everyone matters. We provide equal opportunities in recruitment, career development, and leadership, regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or any other characteristic. We are committed to fostering a work environment where our diverse community of employees, candidates, and business partners actively shapes our growth. By bringing together people from different backgrounds and experiences, we build a workplace where everyone feels free to be themselves while honoring the boundaries of others.