Senior Software Engineer

Company Description

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

Information security is an integral part of Visa’s corporate culture.  It is essential to maintaining our position as an industry leader in electronic payments, and it is the responsibility of each employee to safeguard information, protect it from unauthorized access, and ensure regulatory compliance.  Information security has a significant effect on privacy, consumer confidence, external reputation, and/or the bottom line, and it is a priority on everyone’s agenda

The successful incumbent will be part of Visa’s Business to Business Identity & Access Management team, which is part of the larger Cybersecurity organization. The B2B IAM team has a Global focus, and is responsive to an evolving threat landscape, regulatory compliance, IT security requirements and technology architecture. The B2B IAM team is responsible for secure access to business portals and associated services.

Essential Functions:

• Responsible for application development deliverables including unit design, coding, unit and functional testing.
• Collaborate with technical lead and project manager to define and clarify requirements, create solution approach based on business requirements, and provide recommendations on scope and scale of effort required.
• Generate and propose innovative ideas for incorporating AI technologies to improve operational efficiency, streamline workflows, and support data-driven decision-making.
• Agile application development utilizing various open-source tools for continuous integration and delivery.
• Interface closely with project/product team members such as Analysts, Developers, Technical Product Managers, QA Engineers, Product Owners, Network & Security Engineers, Operations Personnel, and System Engineers.
• Contribute to the full development lifecycle including system design, development integration testing, database modeling, software configuration, source code control, defect resolution, implementation planning, and deployment change management support.
• Ensure development work adheres to Visa Development Management Methodology (DMM), Visa’s Technical Security Requirements (TSR), and Secure Software Development Lifecycle (SSDLC).
• Create software and procedure documentation required as part of the software development artifacts.
• Mentor junior engineers on the team, guiding them through complex technical challenges.
• Perform code reviews and ensure adherence to best practices and coding standards.
• Build and maintain working relationships with global development teams and engineers.

This is a hybrid position. Expectation of days in the office will be confirmed by your Hiring Manager.  ​

Qualifications

Basic Qualifications:
2+ years of relevant work experience and a Bachelors degree, OR 5+ years of relevant work experience

Preferred Qualifications:
3 or more years of work experience with a Bachelor’s Degree or more than 2 years of work experience with an Advanced Degree (e.g. Masters, MBA, JD, MD)
2+ years of relevant work experience and a bachelor’s degree OR 5+ years of relevant work experience. Master's graduates must have 2+ years of relevant work experience to qualify.
3 or more years of work experience with a bachelor’s degree or more than 2 years of work experience with an Advanced Degree (e.g. Masters, MBA, JD, MD).
Bachelor's or master’s in computer science or related technical field.
Extensive background in software design and application development.
Proficiency with Java, J2EE, Spring, data modeling, and SQL programming.
Hands-on knowledge of JBoss Web Server, Apache Tomcat, Redhat Linux, MS SQL Server, LDAP, and MS Windows environments.
Hands-on experience with open-source development tools including Jira, Jenkins, GitHub, and Bitbucket.
Strong programming skills with web technologies: JavaScript (ECMAScript 6+), HTML5, and CSS3.
Working knowledge of modern web frameworks, libraries, and tools (e.g., React, Angular, Bootstrap, Webpack).
Experience with server-side JavaScript frameworks such as NodeJS and jQuery.
Proficiency in consuming and integrating Restful APIs.
Ability to create testable components and write unit tests, familiarity with front-end testing frameworks.
Background in designing and implementing user interfaces.
Exposure to full-stack development.
Working knowledge of applying and integrating AI technologies into daily operations and development tasks.

Excellent communication skills for interacting with clients, product managers, and cross-functional teams.
Demonstrated ability to mentor and support junior engineers through code reviews, technical guidance, and knowledge sharing.

Additional Information

This role qualifies for Autorskie Koszty Uzyskania Przychodu (KUP), in accordance with applicable Polish tax regulations. Eligible employees may benefit from preferential tax treatment on income derived from the creation of intellectual property, subject to meeting statutory criteria.

Visa is an EEO Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status. Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.

Client-provided location(s): Warsaw, Poland

Job ID: 69a19ab4-b4a1-40c7-ae69-00dae180b748

Employment Type: OTHER

Posted: 2026-02-04T15:31:27