Top Senior Software Engineer Jobs in Louisville, KY

Leads the design, development, deployment, maintenance, and optimization of scalable full-stack software systems. Responsibilities include coding, debugging, code reviews, API development, cloud-native deployment, testing, monitoring, performance optimization, production support, incident response, technical mentoring, and establishing development standards. The role collaborates cross-functionally, drives API-first and AI-enabled engineering practices, and participates in on-call support.

Establishes and operates CI/CD solutions and cloud infrastructure across AWS, Azure, OpenShift, and IBM Cloud. Responsibilities include IAM and security compliance, observability and centralized logging, Jenkins and Travis CI pipelines, Kubernetes and Helm administration, Rancher cluster management, cloud cost optimization, and Terraform-based infrastructure provisioning. The role is fully remote within the United States and requires a bachelor’s degree or equivalent experience plus at least five years of progressively responsible experience.

Develop cloud-native B2B SaaS platform services and user interfaces using C#, .NET, React, databases, and microservices. Responsibilities include architecture and design, hands-on feature development, code reviews, API and third-party integrations, technical documentation, debugging, proof-of-concepts, security and compliance implementation, and technical support. Collaborate within agile scrum teams and with product stakeholders to deliver scalable, secure, maintainable enterprise solutions.

Develop scalable, secure, performant web applications and data pipelines for healthcare technology. Partner with engineering, product, and business stakeholders on technical roadmaps, use Agile practices, improve observability and reliability, and mentor junior engineers through coaching and code reviews. Responsibilities include database querying, technical decision-making, API development, data ingestion, cloud technologies, containerization, CI/CD, and handling sensitive data.

Designs, develops, maintains, troubleshoots, and enhances enterprise mainframe applications using COBOL, CICS, JCL, DB2, and VSAM. The role includes performance tuning, database optimization, incident and change request management, technical documentation, requirements analysis, and implementation planning. Acts as a technical lead, supports critical applications, works across Agile and waterfall methodologies, and guides junior team members.

Develop productionized machine learning workflows, cloud infrastructure, distributed data-processing pipelines, and a multi-tenant data lake for autonomous-driving AI. Build internal APIs, CI/CD processes, and developer productivity tools while collaborating with research engineers. The role requires strong software engineering, DevOps, infrastructure-as-code, microservices, networking, and data infrastructure expertise.

Designs, develops, and maintains .NET backend services and ASP.NET Core APIs supporting edge gateways and IoT devices. Builds applications communicating with firmware over TCP, WiFi, and offline-tolerant architectures. Responsibilities include writing tested code, conducting reviews, troubleshooting distributed systems, documenting APIs, collaborating cross-functionally, participating in Agile delivery, improving CI/CD and DevSecOps practices, and evaluating modern .NET tools and patterns.

Develop and maintain web and AI-based enterprise applications through design, coding, testing, debugging, documentation, and code reviews. Integrate AI-assisted and agentic development tools into engineering workflows, manage context and harness engineering, and mentor teammates on responsible AI use. Collaborate across teams, lead projects and design efforts, improve processes and technology choices, and build secure, scalable services using modern backend stacks, REST APIs, databases, cloud infrastructure, and CI practices.

Develops, tests, maintains, and enhances software applications throughout the production lifecycle. Responsibilities include coding, performance testing, debugging, documentation, project planning, code reviews, mentoring, end-user training, and researching development technologies. The role supports cloud-native, API-first, microservice, CI/CD, and DevOps practices while collaborating with IT teams and business stakeholders.

Lead testing for complex Salesforce and enterprise integrations: design and execute end-to-end and integration tests, manage defect lifecycle, define quality gates, assess release readiness, analyze quality metrics, drive test process improvements, mentor junior QA engineers, and collaborate with cross-functional teams to ensure release quality.

Build and deliver full-stack features for a web-based broker platform, collaborate with product and design, manage technical debt, shape architecture for scalability, participate in code reviews, and adopt AI-powered developer tools.

Develops and maintains backend and cloud-native supply chain software supporting warehouse, transportation, fulfillment, inventory movement, and order workflows. Designs APIs, event-driven services, integrations, databases, and distributed systems; diagnoses defects, improves performance and security, and contributes to roadmaps. Coordinates team work, supports requirements analysis, mentors junior teammates, and helps deliver reliable solutions using Azure, Kubernetes, CI/CD, and observability tools.

Design, build, test, and maintain low-latency, high-throughput trading services on an Aeron-based platform. Expand trading protocol features, migrate workflows to the new stack, optimize performance and scalability, support production reliability, and collaborate with cross-functional teams while using AI-assisted development tools.

Build and maintain Mozilla’s Internal Developer Infrastructure Platform, including CI/CD, observability, Kubernetes optimization, environment bootstrapping, and cloud cost optimization. Support development teams, guide technical decisions, create platform features and agentic workflows, improve developer productivity, and promote maintainable engineering practices. The role also requires cross-functional collaboration, technical leadership, proposal writing, and resolving ambiguous infrastructure challenges.

Lead quality assurance for storage and filesystem features, designing test strategies, executing system, stress, regression, and cross-functional testing, and developing automation. Collaborate with developers, tools teams, and customer support to improve testability, reproduce issues, and debug defects. The role requires expertise in NFS, SMB, NAS filesystems, Linux, Windows, VMware, shell scripting, Python, packet capture, test infrastructure, and release management.

Designs and implements scalable software architecture and web-based systems using Java EE and related technologies. Responsibilities include developing front-end and backend functionality, evaluating tools and designs, troubleshooting, conducting root-cause analysis, collaborating with QA and project teams, participating in code reviews, documenting solutions, mentoring engineers, and serving as a technical lead across multiple projects.

The Senior Back-End Software Engineer designs, develops, and maintains scalable backend systems while taking ownership of the software development lifecycle.

Build and operate scalable Kubernetes (EKS) infrastructure, develop Terraform infrastructure-as-code, maintain internal developer platform and tooling, support automation, security, and performance, and participate in 24x7 on-call rotations and incident escalation.

Develop and maintain high-volume, mission-critical enterprise web applications using C#/.NET, ASP.NET MVC, AngularJS, and SQL Server. Responsibilities include full lifecycle development, architecture and design participation, troubleshooting, performance and scalability improvements, AI-assisted workflow development, Agile collaboration, technical mentoring, and supporting multi-tier systems.

Lead end-to-end design, development, deployment, testing, and production support of enterprise web applications. Build scalable client/server architectures, ensure security and data governance, mentor team members, collaborate with product and business stakeholders, and own timely delivery and quality of solutions. Analyze data patterns and support reporting and selection workflows.

Develops and supports software solutions for federal IPv4-to-IPv6 network and application transitions. Responsibilities include software lifecycle development, systems analysis, technical documentation, IPv6 modifications, cloud recommendations, automated networking deployment workflows, and technical leadership across complex assignments. The role is fully remote and may involve supervising others.

As a Senior Software Engineer, you'll design and implement cloud-native solutions using TypeScript, React, and NestJS while optimizing performance on Azure. Responsibilities include developing APIs, conducting code reviews, and ensuring software quality through testing, working collaboratively within an agile team.

Build and maintain full-stack systems for a global monitoring application supporting federal partners and satellite data access. Responsibilities include designing scalable backend services and frontend applications, improving architecture and infrastructure, integrating complex customer requirements, and owning mission-system quality and availability. The role requires collaboration across teams throughout the engineering lifecycle and experience with cloud infrastructure, observability, geospatial data, and complex integrations.

Design and build platforms for new products, develop generative AI features, ensure system reliability, and foster a collaborative culture in a startup environment.

Lead design and implementation of Doowiis frontend, backend, and data systems. Define architecture, build scalable ingestion and analytics pipelines, optimize storage and query performance, ship AI-driven features (LLM/text-to-SQL, embeddings), improve observability and deployment, and mentor engineers while partnering with product and ML teams.