Sr. SW Engineer - .NET Core , C#

About Us

Visa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.

At Visa, you'll have the opportunity to create impact at scale — tackling meaningful challenges, growing your skills and seeing your contributions impact lives around the world.

Join Visa and do work that matters – to you, to your community, and to the world. Progress starts with you.

Job Description

Software Development Engineers are expert problem-solvers and builders who design, implement, and improve software applications and systems. In this role, engineers spend approximately 60–75% of their time coding, working hands-on with code, data, and modern tools (including AI-assisted development, cloud services, and automation frameworks) to deliver secure, scalable, and high-quality technology solutions that drive business outcomes in the fintech sector. They collaborate with cross-functional teams – product managers, designers, data scientists, QA, operations, and compliance – to translate business requirements into robust technical solutions, all while adhering to best practices, security standards, and regulatory requirements.

All roles require digital fluency, including the ability to work with emerging technologies such as Generative AI tools (e.g. ChatGPT, Microsoft Copilot) to support everyday work.

Key Responsibilities:

Collaborate with stakeholders to interpret requirements for project components and incorporate feedback into future designs or solution fixes.

Translate business requirements by verifying assumptions and escalating potential design issues to appropriate stakeholders.

Participate in system design and architecture, refining code plans and contributing to design documentation.

Contribute to project estimation and escalate issues that may cause delays.

Develop, implement, and maintain code for products, services, or components, applying coding patterns, guidelines, and best practices.

Apply debugging tools to verify assumptions and proactively flag issues before they occur.

Participate in code reviews to ensure coding standards are followed and address routine pull requests.

Create test plans and configure testing procedures to identify and resolve defects for multiple features.

Respond to support requests during on-call rotations, troubleshooting issues and deploying fixes under guidance.

Leverage and build knowledge of software developer tools to create, debug, and maintain code for components.

Remain current in skills by investing time in training resources to improve product availability, reliability, efficiency, observability, and performance.

This is a hybrid position. Expectation of days in office will be confirmed by your hiring manager.

Qualifications

Basic Qualification:

3+ years of relevant work experience with a Bachelor’s Degree or at least 2 years of work experience with an Advanced degree (e.g. Masters, MBA, JD,MD) or years of work experience with a PhD, OR 8+ years of relevant work experience.

Preferred Qualification:

4+ years of relevant work experience with a bachelor’s/master's degree in Math, Science, Engineering, or Computer Science, Information Systems or related field.

100% hands-on currently in .NET C# backend development with strong proficiency in .NET Core, C#, ASP. Net Core, ORM and relevant technologies.

Strong hands-on experience in developing RESTful Web Services.

Solid experience working with databases, relational/NoSQL, along with writing and optimizing SQL queries.

Proficiency developing unit and automation scripts using SpecFlow, JUnit, Karate etc.

Proficiency working with Message Queuing systems like IBM WebSphere MQ, Kafka etc.

Understanding of Generative AI concepts, specifically in the context of

Software Development Life Cycle (SDLC).

Strong fundamentals in data structures, algorithms, and complexity analysis.

Willingness to learn and adapt to new skills and initiatives similar to java.