Senior Engineer – CircleCard Platform

The pay range is $98,000.00 - $

Pay is based on several factors which vary based on position. These include labor markets and in some instances may include education, work experience and certifications. In addition to your pay, Target cares about and invests in you as a team member, so that you can take care of yourself and your family. Target offers eligible team members and their dependents comprehensive health benefits and programs, which may include medical, vision, dental, life insurance and more, to help you and your family take care of your whole selves.

Other benefits for eligible team members include 401(k), employee discount, short term disability, long term disability, paid sick leave, paid national holidays, and paid vacation.

Find competitive benefits from financial and education to well-being and beyond at

Working at Target means helping all families discover the joy of everyday life. We bring that vision to life through our values and inclusive culture.

The Circle Card Platform team builds and operates the foundational platforms and services that power the Circle Card ecosystem. The team owns a suite of P1, multi-tenant systems, including our API Platform, Data Platform, Webhooks & Events Platform, and File Platform, enabling applications across Target and our partners to securely access, update, process, and integrate with Circle Card data and capabilities.

Our platforms power critical capabilities across the Circle Card account lifecycle, including account management, new account booking, payments, servicing, compliance processing, and enterprise and partner integrations. Our platform capabilities span high-volume APIs, event-driven integrations, large-scale data access and processing, and very large file ingestion and processing, supporting critical financial and non-financial workloads across the Circle Card ecosystem.

The team is also expanding its scope to build backend capabilities that directly power Circle Card guest experiences across Target's digital platforms, including richer account management experiences through Target Wallet.

As we evolve Circle Card Platform, we're investing in making our capabilities AI-ready and agent-accessible through domain AI agents, MCP tools and services, and intelligent workflows, while continuing to strengthen the scalability, resiliency, performance, and observability of our core platforms.

• Evolving our API, Data, Webhooks/Events, and File platforms to support growing Circle Card capabilities and integrations.
• Building scalable data platform capabilities for accessing, processing, and distributing high-volume Circle Card data across multiple consumers.
• Building large-scale file ingestion and processing capabilities to reliably handle very large files and high-volume financial data workflows.
• Building backend capabilities that directly enable Circle Card guest experiences across Target's digital ecosystem.
• Building AI-ready platform capabilities, domain AI agents, and MCP-based tools and services.
• Expanding shared platform capabilities, including distributed caching and reusable platform services.
• Improving performance, scalability, resiliency, and observability across our P1 systems.
• Automating engineering and operational workflows through intelligent AI agents.

• Design, develop, and maintain highly scalable platform capabilities and backend services using Kotlin, Java, and Micronaut.
• Design and build secure, high-performance REST and GraphQL APIs supporting high-volume retail and financial workloads.
• Build reusable platform capabilities that can be safely consumed by multiple tenants, applications, integrations, and AI agents.
• Design and build event-driven integrations, webhooks, and asynchronous services using Kafka and modern messaging patterns.
• Design distributed systems using Kafka, asynchronous messaging, distributed caching, and cloud-native architecture patterns.
• Design and build large-scale data processing and data access capabilities, enabling applications and integrations to securely consume, process, and distribute high-volume Circle Card data.
• Design highly scalable file ingestion and processing systems capable of reliably processing very large files and high-volume data workloads with strong resiliency, observability, and fault tolerance.
• Design and optimize PostgreSQL databases, including data modeling,…