Top Software Engineer Jobs in Louisville, KY

Design and build backend services and core user experiences for banks and customers. Implement REST APIs, integrate third-party services (Plaid, SendGrid), apply domain-driven design and microservices, perform system design, code reviews, and mentor teammates.

Design, build, and maintain web application infrastructure and data systems for interactive information experiences. Lead application architecture, code quality, performance, and reliability; integrate generative AI and prototype XR interfaces; collaborate with designers and data scientists; ensure security, accessibility, scalability, and document technical standards.

Design, develop, test, and maintain scalable front-end and back-end services and APIs. Lead technical design, perform code reviews, troubleshoot production issues, document systems, implement automated tests, and collaborate with cross-functional teams to deliver reliable shipping infrastructure.

Own test planning, exploratory and risk-based testing, and automation across sprints. Partner with product teams to define acceptance criteria, maintain test environments, contribute to regression suites, surface defects, and develop a testing specialization (automation, API, performance, security, or release coordination).

Lead design and implementation of gameplay and engine systems on Linux platforms. Mentor engineers, define technical specs, manage Linux infrastructure, optimize performance and security, integrate art, maintain documentation, support live services and mobile (iOS/Android) ports, and coordinate cross-team standards and tooling.

Build and maintain production-scale data systems and web-scale datasets (Spark/Flink). Design schemas and data models, write software (Java/Scala), partner with algorithm teams to enable personalization, and drive continuous improvement of data products and frameworks.

Lead development and maintenance of internal design system libraries, tools, and Figma plugins. Implement AI solutions to speed design workflows, own medium-to-large features end-to-end, run internal user research, provide support and on-call coverage, conduct design and code reviews, and collaborate with designers and engineers to drive technical strategy and adoption.

Seeking a Senior Software Engineer with 5+ years of experience to design and develop large-scale distributed systems, mentor junior engineers, and manage complex projects in a dynamic setting.

Design, implement, and support enterprise workload automation using BMC Control-M. Collaborate with application owners to define job dependencies, deploy scheduling infrastructure, automate processes, migrate workflows, and enforce production control standards across multi-platform environments.

Remote Senior Software Engineer who evaluates Microsoft and complementary technologies, designs and implements custom software (C#, JavaScript, SQL), applies cloud and DevOps practices (Azure/AWS, CI/CD, containers), mentors and networks professionally, and continuously learns and advises clients.

Design and implement Alpaca's low-latency, high-throughput algo trading platform. Work across frontend and backend, databases, and distributed systems; optimize performance and concurrency; architect scalable, highly available services; and develop/extend OMS and RMS functionality for trading/exchange systems.

The Senior Software Engineer will develop and optimize systems for aerospace communications, manage project priorities, and contribute to various technical initiatives.

The Senior Software Engineer will develop and optimize systems for Aalyria's Spacetime platform, focusing on API development and wireless network algorithms.

As a Senior Software Engineer, you will develop key product features for millions of users, collaborate with teams, and mentor others.

The Senior Software Engineer will own the React Native mobile codebase, collaborate with cross-functional teams, and ensure high-quality delivery of customer-facing applications.

Lead design and implementation of full-stack, large-scale cloud platform capabilities for Microsoft Fabric. Shape architecture, build GraphQL APIs, developer tools, AI-driven experiences, participate in livesite operations, mentor engineers, and drive cross-team initiatives to deliver scalable, reliable developer-facing services.

Build and scale Azure Resource Graph platform: design and implement distributed services, ingestion pipelines, APIs, and storage; optimize performance across the stack; integrate AI-assisted capabilities and search/NLP features; collaborate cross-team; mentor engineers and maintain platform reliability and observability.

Lead design and implementation of full-stack features across .NET back-end APIs and React front ends. Own testing, observability, performance, and production support. Mentor engineers, drive technical design and integrations, collaborate with Product/QA/DevOps/UI/UX, and champion secure engineering practices for sensitive healthcare data.

Staff-level platform engineer to improve and scale inherited Scala systems, redesign data layers for ML/AI, build a Rust service framework, enhance observability and resilience, shape developer tooling and standards, and work across JVM, Rust, Python, SQL, and Spark.

Lead backend-focused engineering to design and ship member- and care team-facing experiences. Own architecture end-to-end, set technical direction and quality standards, mentor engineers, and deliver scalable, secure APIs with CI/CD, cloud deployments, and GenAI/LLM-informed workflows.

Lead quality efforts across backend services, APIs, and customer-facing apps. Design and implement automated test frameworks, build custom tooling and load testing solutions, improve testing pipeline scalability, mentor engineers, and apply GenAI/LLMs to testing and test-generation challenges.

Build and optimize high-volume web applications using .NET, Node, React and AWS; maintain and improve existing systems; troubleshoot bugs; perform code reviews; mentor junior engineers; participate in on-call rotation; and improve scalability and performance.

Design, build, and operate large-scale distributed web-crawling and data ingestion systems. Improve throughput, reliability, observability, and data quality. Develop backend services for job orchestration and asynchronous workloads, partner with product teams to create data products, and mentor teammates on domain-specific acquisition techniques.

Design, develop, and maintain web applications, console apps, and RESTful APIs using C# and JavaScript. Collaborate on agile teams, perform code reviews, build internal tools, troubleshoot front-end issues, and deploy to Azure/Jenkins. Improve processes, follow best practices, and support CI/CD pipelines.

Design and evolve core control, data, and observability systems; implement resilient region-spanning architectures; build libraries, protocols, and tooling; diagnose and harden critical paths using metrics, tracing, and testing; and shape platform capabilities across identity, scheduling, observability, and distributed state management.