Top Senior Software Engineer Jobs in Louisville, KY

As a Senior Software Engineer, you'll design modern scalable platforms, focusing on front-end and back-end development using VueJS/ReactJS and C# microservices, while integrating with AWS and modern data warehouses.

The Senior Software Engineer will develop software for automated mobile application analysis, lead implementation decisions, and mentor junior engineers.

Lead agile teams to design, build, and maintain enterprise-grade Apple-focused software. Mentor engineers, produce designs, ensure high quality, testing, and performance, communicate with stakeholders, follow security/privacy protocols, and occasionally work onsite. Requires 5+ years of relevant experience and U.S. citizenship.

Design, build, and lead scalable API and platform features. Mentor junior engineers and drive technical initiatives from design to delivery.

Design, develop, test, and own SDKs and REST APIs for a next-generation analytics platform. Collaborate with Product Management, contribute to DevOps and quality frameworks, perform code reviews, and mentor teammates to deliver performant, well-tested software.

The Senior Software Engineer will lead technical initiatives, design scalable systems using Node.js and AWS, mentor engineers, and improve platform reliability.

As a Senior Software Engineer at MNTN, you'll design and operate backend systems for ad delivery, ensuring high performance and reliability. You'll work with Java, Kotlin, and Scala to handle high-throughput services and contribute to architectural decisions while improving system efficiency.

As a Senior Backend Engineer, you will enhance the Integrations platform for managing large data streams, collaborating with teams, and optimizing connectors.

Design, build, and maintain APIs and systems at Telnyx, debug production issues, improve engineering standards, and collaborate across teams.

Work on a cross-functional Agile product team to design, develop, test, and maintain scalable web applications. Lead solution design, mentor engineers, recruit, write unit/integration/performance tests, collaborate with product owners, own services at scale, and follow software engineering best practices throughout the SDLC.

Lead architecture and implementation of Chainguard Repository: design, build, and operate high-availability backend services in Go that serve package registries and APIs; improve scalability, reliability, observability, and load testing; drive technical decisions, collaborate across teams, and mentor engineers.

Lead design and build of a 0-1 Identity Graph platform for real-time identity resolution. Own architecture, implement high-performance synchronous read models, build data pipelines, enforce PII privacy boundaries, ensure production resilience and observability, and mentor engineering teams while aligning cross-team stakeholders.

Own and evolve Roo's frontend platform and design system, building tooling, AI-assisted workflows, and shared UI architecture to accelerate web and mobile product development. Lead migrations, framework upgrades, developer experience improvements, and integrations with design and prototyping tools.

As a Software Engineer, you'll design and develop microservices using a cloud-native tech stack, with a focus on financial services and secure systems.

Lead technical initiatives to design and build scalable, high-performance batch and real-time data pipelines and microservices. Use Big Data tools (Spark, Kafka, EMR, S3) and AWS services to ingest, store, transform, and query large datasets. Maintain and optimize systems, perform code reviews, mentor engineers, implement security and data governance, and collaborate with product teams in an Agile environment to deliver reliable production software.

The Senior Software Engineer will design and develop the PBM adjudication platform, mentor junior engineers, and maintain production systems using various technologies.

Build and own backend identity APIs and core authentication flows for scale. Partner with product and engineering leadership, author design docs, improve production resilience and observability, handle incident response and on‑call, collaborate across teams, and mentor other engineers.

Lead full-stack feature development for an enterprise IT lifecycle platform: design, build, test, and ship end-to-end solutions. Use AI tools to accelerate work while reviewing and hardening outputs. Mentor engineers, run code reviews, collaborate with stakeholders, set estimates and milestones, and influence product and roadmap decisions. Maintain reliability through testing, CI, and containerization.

Design, implement, debug, and ship front-end features for Azure Storage at cloud scale. Drive design, dependency identification, and documentation. Act as DRI, participate on-call monitoring and incident response, and improve service reliability, performance, automation, and observability in collaboration with stakeholders.

Design and develop large-scale Java-based identity management features for PingIDM. Collaborate with distributed teams to analyze requirements, implement secure RESTful APIs, enable cloud deployments, optimize performance, and support customer-facing teams to resolve issues.

Develop, maintain, and release XNAT-based medical imaging informatics solutions for research and clinical use. Implement core XNAT functionality, DICOM workflows, data pipelines, and integrations (JupyterHub, data lake). Own end-to-end release management, triage and resolve defects, contribute upstream to open-source XNAT, mentor junior engineers, write tests and documentation, and coordinate deployments and upgrades in production research and clinical environments.

Lead design, implementation, and deployment of open-source, cloud-native features (Zarf). Integrate with defense systems, own architecture decisions, mentor engineers, engage open-source communities, produce documentation, and drive product direction with a focus on Kubernetes, cloud, and secure software delivery.

Design, build, and operate production-ready distributed systems and microservices. Deliver new features, improve reliability and scalability, identify bottlenecks, mentor junior engineers, and contribute to architecture and modernization efforts.

Lead design, development, and production support of enterprise integration services using Java and middleware. Improve system reliability and performance, implement deployment and DevOps practices, perform code reviews and root-cause analysis, provide periodic on-call support, and mentor team members while collaborating with architects and developers.

Design, build, and maintain scalable full-stack systems; own features end-to-end; solve complex distributed-systems problems; mentor junior engineers; collaborate with Product and Design; ensure code quality, testing, and scalability for commerce/3PL applications.