Senior Software Engineer - Java

As a Senior Software Engineer at Visa, your primary responsibilities include developing integrations with various financial institutions, focusing on building high-load systems that guarantee uptime, and creating effective tools to automate integrations. You'll also be involved in monitoring systems and alerting mechanisms to ensure seamless transactions for consumers. Your role will require you to balance technical trade-offs while ensuring the quality of delivered solutions.

To apply for the Senior Software Engineer position at Visa, you should have extensive experience working with Java technologies and a solid background in building innovative and scalable products. Familiarity with DevOps methodologies and agile environments is also essential. A proven track record in operational excellence and convenience-related duties along with experience coaching junior team members will give you an edge.

Joining Visa as a Senior Software Engineer in Warsaw means becoming part of an employee-centric culture where innovation and technology drive change. You'll be interfacing with a diverse team, working on projects that reach millions across Europe and the U.S., and having the opportunity to innovate in the fintech space. Plus, the role offers a hybrid work model, giving you flexibility in your work setting.

A successful Senior Software Engineer in Visa's US Connectivity team will have a strong command of Java, along with proficiency in cloud solutions like AWS, container technologies such as Docker, and orchestration with Kubernetes. Familiarity with SQL databases and monitoring tools like Datadog will also be pivotal for managing system performance and data integrity.

As a Senior Software Engineer at Visa, you can expect a dynamic and collaborative work environment that values innovation and agility. The team operates on principles of operational excellence, where you'll engage in on-call duties as needed. Visa promotes a culture where learning and development are prioritized, providing ample opportunities for you to grow both personally and professionally.

When discussing your Java experience, focus on specific projects where you utilized Java to build scalable applications, emphasizing any work with frameworks or tools relevant to Visa's tech stack. Highlight your understanding of how Java integrates with backend systems and how you've addressed performance optimization.

To effectively answer this, you can explain that both speed and quality are vital in software development. Discuss how you assess project requirements, set realistic deadlines, and utilize testing strategies like automated tests to maintain code quality without compromising on timelines.

Here, share a relevant story that illustrates your problem-solving skills. Outline the project's goal, the challenges faced, and the specific actions you took to resolve them. Focus on any collaboration with team members and the impact of the project on the end users or the business.

Discuss your experience with Agile methodologies and how you’ve applied them to deliver projects effectively. Explain how Agile emphasizes collaboration, flexibility, and continuous feedback, and share specific tools you’ve used for project management and tracking metrics.

To convey your approach, talk about best practices like code reviews, writing documentation, using design patterns, and your commitment to refactoring code. Mention that scalable applications include thinking about future needs and how you have managed technical debt in past projects.

Provide examples of projects where you utilized AWS services, focusing on how they enhanced application performance or reliability. Speak about your familiarity with services such as S3, EC2, Lambda, or RDS, and how they play a role in the architecture of cloud-based applications.

Discuss how you've integrated DevOps practices into your workflow by emphasizing continuous integration/continuous deployment (CI/CD) tools, version control systems like Git, and collaboration with operations teams to achieve smooth deployments and maintain system reliability.

Share your perspective that feedback is an opportunity for growth. Illustrate with examples how you’ve graciously accepted critiques in past roles, implemented suggested changes, and refined your coding practices as a result of collaborative code reviews.

Discuss specific tools and libraries that you've used, such as RESTful services, SOAP, or GraphQL. Because Visa’s role involves working with both documented and undocumented APIs, share your experiences with both types and any challenges you faced and overcame.

Convey your enthusiasm for Visa's mission to drive the future of payments and technology. Describe how your values align with those of Visa, how you cherish involvement in projects that can have a real-world impact, and what excites you about working in the fintech space.