Sr. Software Engineer (Python, Agentic AI, JavaScript)

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

Visas Technology Organization is a community of problem solvers and innovators reshaping the future of commerce. We operate the worlds most sophisticated processing networks capable of handling more than 65k secure transactions a second across 80M merchants,15k Financial Institutions, and billions of everyday people.While working with us youll get to work on complex distributed systems and solve massive scale problems centered on new payment flows, business and data solutions, cyber security, and B2C platforms.

The Opportunity:

We are looking for Versatile, curious, and energetic Senior Software Engineers who embrace solving complex challenges on a global scale. As a Visa Software Engineer, you will be an integral part of a multi-functional development team inventing, designing, building, and testing software products that reach a truly global customer base. While building components of powerful payment technology, you will get to see your efforts shaping the digital future of monetary transactions.

The Work itself:

• Design code and systems that touch 40% of the world population while influencing Visas internal standards for scalability, security, and reusability
• Collaborate multi-functionally to create design artifacts and develop best-in-class software solutions for multiple Visa technical offerings
• Actively contribute to product quality improvements, valuable service technology, and new business flows in diverse agile squads
• Develop robust and scalable products intended for a myriad of customers including end-user merchants, b2b, and business to government solutions.
• Leverage innovative technologies to build the next generation of Payment Services, Transaction Platforms, Real-Time Payments, and Buy Now Pay Later Technology
• Opportunities to make a difference on a global or local scale through mentorship and continued learning opportunities.

Essential Functions:

• Demonstrates relevant technical working knowledge to understand requirements.
• Identifies and contributes to the development and solution strategies to team members that improve the design and functionality of interface features across one or more project features, under minimal guidance.
• Applies standard processes on the use of programming languages (e.g. Python, Javascript) to write code that fulfills website modification requests and technical requirements.
• Collaborates with others to support the piloting of new technology capabilities and features that enhance the user website experience across e-commerce products.
• Analyzes bugs for simple issues and applies debugging tools to verify assumptions.

Visa requires at least 3 days in office, expectations of these days will be confirmed by your Hiring Manager.

Qualifications

Qualifications:

• 3 or more years of work experience with a Bachelors Degree or with an Advanced Degree
• We are looking for a Senior Software Engineer with experience of building innovative and scalable products. You understand the trade-offs of speed vs quality on technical decisions and look at problems from different angles. You also invest time in your own, and the team’’s development to build up your overall knowledge.
• Experience leading technical strategy and architecture for new systems and enhancing and modernizing legacy systems
• Proven experience as a strong Senior Engineer, leading technical teams in fintech or full stack/backend systems.
• Extensive experience working with Python, Node.js and JavaScript
• Experience with Generative AI
• Experience of prompt engineering and tooling orchestration for AI agents in enterprise environments, ensuring reproducibility and compliance.
• Understanding of transformers, GANs, VAEs, and other generative architectures.
• Application of NLP, multimodal AI, and AI-powered developer tools in production systems.
• Experience with cloud-native DevOps:
• AWS, K…