Top Senior Software Engineer Jobs in Louisville, KY

Design, develop, and maintain scalable full-stack web applications. Build reusable UI components, develop backend services and APIs, contribute to architecture, participate in code reviews, mentor peers, collaborate cross-functionally, and reduce technical debt while ensuring high performance and maintainability.

Lead frontend platform architecture across web and mobile: design and evolve design systems, component libraries, build tooling, accessibility, internationalization, and developer experience. Partner with backend teams on GraphQL/Python, maintain security and compliance, mentor engineers, drive cross-team initiatives, and deliver scalable, high-quality frontend foundations used by multiple product teams.

Design, build, and scale end-to-end user-facing web applications. Implement and maintain backend services and APIs, build frontend components (React), model relational data (PostgreSQL), collaborate with product and design, participate in technical design, mentor engineers, and deliver high-quality, user-focused features.

Senior iOS engineer responsible for building and maintaining Dick's Sporting Goods and Golf Galaxy mobile apps using SwiftUI and MVVM. Collaborate with designers, product managers, testers, and engineers to design, implement, test, and ship features, diagnose and fix defects, drive roadmap priorities, and mentor junior teammates while supporting program management and requirements gathering.

Design, develop, test, and maintain scalable, high-performance software. Collaborate with product, design, and engineering teams, own features through deployment, mentor peers, perform code reviews, optimize performance, and integrate AI-assisted development workflows.

The Senior Software Engineer will design, develop, and operate critical software services, improving reliability and performance while collaborating with PMs and Designers to deliver customer-focused solutions.

Design and build core LLM platform primitives, safety and observability infrastructure, provider abstraction and evaluation systems, prompt lifecycle and Agent-as-a-Service; collaborate with product teams, document reference implementations, and lead technical standards to enable other engineers to build production AI features.

The Senior Software Engineer will write maintainable code, design systems, mentor others, and ensure projects align with business needs, utilizing Ruby on Rails, React, and databases.

As a Senior Software Engineer, you will lead design and implementation of scalable systems, solve complex problems, and mentor engineers.

The Software Quality Assurance Engineer will lead development activities, support feature completion, and drive non-functional requirements in a team focused on the 7750 Service Router.

Design and scale distributed systems for Ditto's edge-to-cloud capabilities, lead services development in Rust, and mentor engineers.

The Senior Software Engineer will architect and optimize AI-powered developer tools, enhance the SDLC, collaborate across teams, and mentor peers to improve engineering productivity.

Lead the technical direction for the engineering team, architect systems, design APIs, and mentor engineers while improving backend infrastructure.

Lead technical direction and contribute to the frontend codebase, building user-facing tools and mentoring team engineers to enhance user experiences.

As a Senior Android Engineer, you'll develop new features for the ClassPass mobile apps, emphasizing collaboration, code quality, and user-friendly design.

The Staff Software Engineer will lead projects, mentor team members, write code using Python, Django, React, JavaScript, and TypeScript, and impact the healthcare system with software solutions.

As a Senior Software Engineer at Medallion, you'll lead projects, mentor team members, and work with technologies like Python, Django, React, and TypeScript to impact healthcare operations.

The Lead Software Engineer will architect and evolve OfficeSpace's AI platform, focusing on full-stack systems, AI features, and mentorship while ensuring performance, reliability, and security.

As a Senior Software Engineer, you'll design and maintain frontend applications and reusable components, integrate APIs, mentor engineers, and ensure high-quality user experiences in the fintech space.

As a Senior Software Engineer at Flex, you'll design and maintain financial services architecture, mentor junior engineers, and ensure scalability and security for innovative financial products.

The Lead Software Engineer for Mobile iOS will design, test, and deliver applications, oversee software maintenance, collaborate on mobile experiences, and mentor junior engineers, utilizing Swift and modern Apple frameworks to enhance user experiences.

Build and improve the end-to-end experience for new customers by implementing features across Python services, a GraphQL gateway, Auth0-based auth, and Terraform-managed GCP infrastructure. Collaborate cross-functionally to redesign discovery, evaluation, onboarding, and time-to-value while ensuring reliability, testing, and stable deployments.

Develop and maintain a digital ordering platform for medical equipment. Lead technical decisions, deliver quality code, and ensure system reliability while collaborating in an agile environment.

Senior contractor engineer will own and evolve Thrive's enterprise platform end-to-end, starting on the Coaching app. Responsibilities include sustaining engineering (reliability, scalability, technical debt), delivering medium-to-large projects, partnering with Product and stakeholders, supporting on-call and incident response during US hours, and shipping high-quality, enterprise-facing features iteratively.

Build and own a framework-agnostic charting engine core and its React binding: rendering layers, real-time data plumbing, indicator math, drawing tools, performance (60fps) discipline, visual testing, architectural leadership, mentoring, and integrations across web and mobile.