**General information** **Ref #** 22516 **Remote?** No **Ally and Your Career** * Ally Financial only succeeds when its people do - and that's more than some cliché people put on job postings. We live this stuff! We see our people as, well, people - with interests, families, friends, dreams, and causes that are all important to them. Our focus is on the health and safety of our teammates as well as work-life balance and diversity and inclusion. From generous benefits to a variety of employee resource groups, we strive to build paths that encourage employees to stretch themselves professionally. We want to help you grow, develop, and learn new things. You're constantly evolving, so shouldn't your opportunities be, too? **The Opportunity** At Ally, you get a startup feel, but experience the benefits of a company that has worked out the kinks and is fulfilling its purpose. We are always evolving and see that as a good thing. From owning our work to seeing its impact in the real world, our team is relentless in finding new ways technology can help make experiences better and help people. We are problem solvers, we value diverse thinking, we support one another, and we challenge ourselves to think bigger in the journey to deliver customer-obsessed tech solutions. To read more about what our tech team does, be sure to visit our tech blog at ally.tech We are seeking a hands-on Principal Software Engineer to lead the design, development, and support of dealer-facing applications that power critical business interactions and digital experiences. This role will drive the delivery of secure, scalable, and high-performing platforms across front-end, back-end, APIs, and cloud infrastructure, with strong focus on usability, reliability, integration, and production excellence. As a Manager, you will provide technical leadership across architecture, implementation, release management, and operational support while partnering with product, business, and engineering teams to continuously improve dealer experience and platform stability. You will also mentor engineers, shape engineering standards, and help build resilient solutions that support evolving dealer and business needs. At this time, Ally will not sponsor a new applicant for employment authorization for this position. **The Work Itself** * Full-Stack Technical Expertise. Lead end-to-end full-stack engineering across front-end, back-end, APIs, data, and cloud infrastructure for dealer-facing applications, with a focus on usability, performance, resiliency, security, and maintainability. * Backend: Strong hands-on experience with Node.js, NestJS, and TypeScript for building secure, performant REST APIs and microservices that support dealer-facing experiences; expertise in API design, asynchronous processing, error handling, enterprise system integration, and relational databases such as Postgres or Oracle; strong understanding of production support, issue triage, and operational stability * AWS backend stack: Lambda, API Gateway, Step Functions, S3, and CloudFront, with the ability to design event-driven and serverless application patterns; Terraform, IAM, Secrets Manager, and Parameter Store for secure configuration and repeatable infrastructure provisioning; CloudWatch for logging, metrics, alerting, and production observability. * Frontend: Strong hands-on experience with React.js, Next.js, TypeScript, and modern CSS practices to build performant, responsive, and accessible dealer-facing user interfaces; familiarity with API integration patterns, usability-focused implementation, DevOps practices, and AWS deployment models. * Frontend architecture: Experience with micro frontend architecture, module federation, reusable component design, and client/server state management using tools such as React Query, Redux, or Zustand * Architecture & Delivery * Collaborate with architects, product partners, and cross-functional teams to define application architecture, integration patterns, and scalable technical solutions that improve dealer workflows and experience * Translate business and dealer workflow requirements into technical designs, implementation plans, and scalable solution components * Own and coordinate release management activities for dealer-facing applications, including planning, dependency tracking, deployment readiness, rollback strategy, production validation, and post-release support * Identify technical risks related to architecture, scalability, security, production stability, and dealer impact, and propose practical mitigation strategies * Participate in sprint planning, technical estimation, dependency management, support prioritization, and delivery commitments with clear engineering ownership * Liaison between product, architecture, and development team members. * Works directly with product owners to ensure stories contain the right balance of technical direction, best practices, and level of detail. * Coordinates projects with En