Junior 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.

As a Junior Software Engineer, you’ll learn and contribute to building services and tooling that help product teams deliver real‑time features. This is a hands‑on role where you’ll write code, pair with experienced engineers, participate in code reviews, and follow best practices for reliable, scalable, and observable systems. You’ll have support from mentors and your squad to grow quickly.

This role sits within Visa’s Treasury function, which is responsible for managing global liquidity, cash flow, and risk to keep payments moving smoothly across markets. Treasury ensures funds are available where needed and supports critical processes like settlements and foreign exchange. As part of this team, you’ll help build reliable, scalable systems that underpin these operations and enable real‑time visibility and control.

Our stack runs on AWS as a set of distributed applications using Kubernetes and a microservice‑led architecture. We are also utilising Kafka for our streaming and PACT for Contract testing.

What you’ll get to do

• Write and maintain backend code in Java (11+) and Spring Boot on real services with guidance from senior engineers.
• Contribute small features and tests to services that integrate with Kafka, Flink
  , and related technologies.
• Add observability (metrics, logs, traces) and improve reliability under the supervision of the team.
• Help refine requirements, demo your work, and deliver incrementally in Agile squads.
• Participate in code reviews
  , documentation, and CI/CD pipelines.
• Learn and apply event‑driven patterns in practical, production contexts.

You’ll get

• Ownership of well‑defined tasks and components within the treasury domain, with mentorship and clear growth paths.
• Exposure to modern technologies and production practices.
• A modern tech stack and the autonomy to try ideas, supported by your squad.
• Strong organisational support, visibility, and opportunities to learn.

Our Tech Stack includes

• Object‑oriented programming forms the bulk of our codebase, currently in Java, versions 11+, and ideally Springboot framework. Highly‑scalable, highly‑available, cloud‑native applications on AWS are key to our next phase of growth, are written to 12‑factor principles and fit into our microservices architecture.
• Cloud‑related tools, services, and distributed system observability to support these applications, such as Docker, Kubernetes, Elastic Search, log management systems, and Datadog APM, to name but a few.
• API specifications, conforming to the OpenAPI (Swagger) standard, provide a clean boundary both externally between our customers and our product, and internally between our microservices.
• SQL, and large SQL databases, provide the persistence layer for our applications. You’ll be working with (and know the limitations of using) such large data stores.
• Infrastructure automation is primarily owned by the infrastructure team, but you will be a consumer of their work, familiarity with AWS, Terraform and Docker is beneficial.
• Testing approaches, including TDD, BDD and Contract Testing, all form an important part of our approach to quality assurance, ensuring that the code that we write forms products that are fit for use. We currently use a variety of frameworks including JUnit, RSpec and Cucumber.
• Agile development, with teams broadly aligned with the Spotify - Squads and Tribes - model, helps us deliver incremental improvements to our products in an iterative manner. Advocating this model, and joining us on a journey of continuous improvement, is a key attribute of members of our teams.
• Continuous Integration and…