Sr Engineer - Transact Team

Senior Engineer, Transact

The Transact team builds and supports Target's in-store point-of-sale checkout applications across Front Lane, Self-Checkout, and other transaction experiences. These applications are used by millions of guests and team members, run on more than 50,000 registers, and support over $80 billion in annual transactions across Target stores.

Transact is a business-critical platform that enables reliable, scalable, and high-performing checkout experiences in stores. The team is focused on modernizing Target's POS applications, improving engineering velocity, strengthening operational reliability, and delivering intuitive experiences that improve both guest satisfaction and store operations. As a Senior Engineer on the Transact team, you will contribute to the development and modernization of POS checkout applications using React, React Router, and Type Script.

You will help build resilient, accessible, and maintainable frontend experiences that integrate with complex enterprise systems, transaction-processing services, payments capabilities, and store infrastructure. You will partner closely with Product, UX, Store Operations, Payments, Infrastructure, and Platform Engineering teams to deliver checkout capabilities that are scalable, reliable, and easy for guests and team members to use.

You will support Transact as a P1 production application through a rotation-based support model. This includes helping triage and resolve production issues, improving observability, reducing recurring incidents, and strengthening the reliability of Target's checkout experience.

This role is ideal for a strong frontend engineer who enjoys solving complex problems at scale, modernizing critical systems, improving engineering practices, and owning software that has direct impact across Target stores.

In this role, you will:

• Design, develop, test, modernize and maintain frontend applications for Target's in-store POS checkout experiences
• Build modern, scalable user interfaces using React, React Router, Type Script/Java script
• Integrate frontend applications with REST APIs, enterprise services, payments flows, and store infrastructure
• Write maintainable, well-structured code with a focus on quality, reliability, accessibility, and long-term supportability
• Create and maintain automated tests using tools such as Jest and Playwright
• Participate in design discussions, technical planning, code reviews, and architecture decisions
• Collaborate with Product, UX, Store Operations, Payments, Infrastructure, and Platform Engineering partners
• Participate in production support for Transact, helping resolve issues and improve system reliability
• Use observability tools such as Grafana, Kibana, and Logstash to monitor, troubleshoot, and improve application health
• Contribute to modernization efforts that improve developer experience, deployment safety, and application performance
• Stay current with new technologies, engineering practices, and AI-enabled development capabilities that can improve team effectiveness

Core Technologies:

• Frontend Languages & Frameworks:
  Type Script, JavaScript, React, React Router, Node.js
• Testing:
  Jest, Playwright
• API Integration: REST APIs, Client-side OAuth
• CI/CD & Containerization:
  Docker (Colima), Vela
• Observability & Monitoring:
  Grafana, Kibana
• Platform Technologies:
  Kubernetes, Google Cloud Platform (GCP)

Core responsibilities are described within this job description. Job duties may change at any time due to business needs.

About You:

• 4-year degree or equivalent experience
• 5+ years of software development experience
• Strong frontend engineering experience with Type Script, JavaScript, React, Node.js and modern frontend architecture
• Experience building applications that integrate with REST APIs and enterprise systems
• Familiarity with CI/CD pipelines and modern deployment practices
• Experience writing automated tests and supporting quality engineering practices
• Ability to debug complex issues across frontend applications, APIs, infrastructure, and production environments
• Strong communication skills with the ability to explain technical decisions, risks, and tradeoffs clearly
• Ability to work independently with minimal…