Software Engineer - Platform

Staff Software Engineer
- Payments Platform

As a Staff Software Engineer at Western Union, you will help accelerate our platform modernization journey across North America (NA) and Latin America & Caribbean (LACA). Leveraging AI coding agents and modern engineering practices, you will build, modernize, and improve applications, internal tools, workflow automations, and platform capabilities that solve real customer, agent, operational, and business challenges. This role focuses on delivering measurable outcomes by combining technical expertise, AI-assisted development, and a deep understanding of business needs.

You will drive the transformation of legacy platforms into scalable, secure, cloud-native solutions, leading the design and delivery of AWS microservices, cloud data platforms, distributed caching solutions, and event-driven architectures. Working closely with engineering, product, operations, and business stakeholders, you will help deliver reliable, high-performing platform capabilities that improve operational efficiency, support business growth, and enhance customer experiences across the region.

Lead payment platform modernization initiatives across North America (NA), Latin America, & Caribbean (LACA) regions.

Design, build, and modernize applications, workflow automations, internal tools, APIs, and platform services using AI-assisted engineering practices.

Transform legacy payment platforms into AWS-based microservices leveraging Java, Spring Boot, APIs, event-driven architecture, and cloud-native design patterns.

Architect and implement cloud-native data solutions using PostgreSQL, Aurora, DynamoDB, and related technologies.

Build and optimize distributed caching solutions using Redis, Valkey, Elasti Cache, or similar technologies.

Partner with business, product, operations, risk, compliance, architecture, QA, and customer care teams to translate requirements into scalable solutions from concept through deployment.

Apply AI to accelerate software development, testing, documentation, observability, code quality, and engineering productivity.

Establish telemetry and monitoring capabilities to measure adoption, performance, reliability, customer experience, and business outcomes.

Drive secure, reliable, scalable delivery by reviewing AI-generated code and designs against enterprise standards for security, privacy, compliance, resilience, and quality.

Develop reusable engineering patterns, reference architectures, prompts, and guardrails that advance AI-native and cloud-native development practices.

Foster a culture of experimentation, continuous improvement, and outcome-driven engineering.

Provide technical leadership and mentorship across modernization, cloud migration, microservices, caching, and database transformation initiatives.

6+ years of experience applying software engineering best practices with a focus on security, reliability, scalability, observability, and operational excellence.

6+ years of experience developing cloud-native applications and microservices using Java and Spring Boot.

6+ years of experience designing and deploying solutions on AWS (Azure, other cloud), including microservices and cloud-native platform architectures.

1+ years of experience working with cloud databases (PostgreSQL, Aurora, DynamoDB) and distributed caching technologies (Redis, Valkey, Elasti Cache).

1+ years of experience leading platform modernization and legacy transformation initiatives.

2+ years of experience with containerization, CI/CD pipelines, observability, and infrastructure automation.

2+ years of experience designing highly available, low-latency, and resilient distributed systems.

1+ years of experience leading platform modernization and legacy transformation initiatives.

Hands‑on experience using AI coding agents or AI-assisted development tools to accelerate software delivery and modernization efforts.

Experience in Payments, Fin Tech, Banking, Remittance, or other high-volume transaction processing environments.

Experience supporting multi-region or global-scale…