Top Senior Software Engineer Jobs in Jacksonville, FL

Own technically complex, mission-critical areas and define technical strategy for new products. Design and ship full‑stack, AI‑driven features end‑to‑end, build scalable data ingestion and API systems, partner with product/design/customer teams to translate ambiguous problems into measurable outcomes, mentor engineers, and raise engineering quality and standards across the organization.

Serve as the senior software development SME while performing full-stack Java web development and O&M activities. Guide developer teams, prioritize work, coordinate technical meetings, resolve issues, optimize processes, analyze requirements, estimate effort, review code, conduct testing, troubleshoot environments, create technical documentation, and implement software updates. The role requires extensive J2EE experience, SPA development, DevOps and CI/CD expertise, and active Public Trust/MBI clearance supporting an IRS Criminal Investigation system.

Develop and own full-stack web features from design through deployment, monitoring, and optimization. Build APIs, backend services, responsive user experiences, SQL queries, and relational database schemas. Modernize legacy systems, troubleshoot performance issues, participate in code reviews, and collaborate with product and design teams in an agile continuous-delivery environment. The role emphasizes secure, maintainable, scalable code, technical ownership, and thoughtful use of AI-assisted development tools.

Senior-level software engineer lead responsible for designing, developing and driving mid-size features across sprints. Owns agile testing strategy, test automation (unit, API, E2E), CI/CD integration, virtualized testing and performance troubleshooting. Coaches teams, influences architecture and quality standards, collaborates with vendors, and improves development processes to ensure scalable, testable, and production-ready digital applications.

Lead database and application migration projects using Golang and PostgreSQL. Define migration strategy, ensure data integrity and security, coordinate cross-functional teams, perform testing and optimization, document processes, and provide technical support during and after migrations.

Lead the technical vision and architecture for backend systems supporting experimentation, personalization, analytics, and conversion optimization. Design and operate high-throughput distributed systems and APIs, build data infrastructure, and productionize AI/ML capabilities. Drive complex multi-team initiatives, influence engineering strategy, establish technical standards and operational excellence, and mentor senior engineers. Partner with product, data science, ML, and engineering teams to translate business needs into scalable solutions.

Join Archy as a Senior Platform Software Engineer to enhance dental practice management through a scalable SaaS solution, focusing on cloud infrastructure, CI/CD pipelines, and AI integration.

Leads the Bioinformatics Software Engineering team and owns engineering strategy, architecture, delivery, modernization, and production support for clinical genomics platforms. Oversees software engineers, bioinformatics workflows, data integration, automation, quality systems, release governance, reliability, and regulatory compliance. Partners with clinical, laboratory, scientific, quality, product, operations, and executive stakeholders to convert research methods into validated production workflows. Guides AI-enabled engineering initiatives while ensuring privacy, traceability, clinical-grade quality, and operational resilience.

The Staff Software Engineer will shape technical direction, build developer platforms, and design AI agents, enhancing developer productivity and collaboration across teams.

As a Senior Software Engineer, you will design and build a cutting-edge identity search platform and implement AI systems for defense applications, working closely with cross-functional teams to enhance user workflows and support national security.

As a Software Development Engineer in Test, you'll create and conduct automated tests, resolve technical issues, and collaborate with development teams to ensure software quality.

The Staff Software Engineer will lead technical strategy, ensure system availability, and develop backend systems at scale, collaborating across teams to drive capacity modeling and operational quality.

As a Senior Software Engineer, you will design and maintain systems, mentor team members, and improve both code quality and team practices.

Lead frontend development using React and TypeScript to design scalable frontend architecture, components, and developer workflows. Own feature delivery from concept to launch, improve CI/CD and testing, collaborate with backend on APIs, evaluate new technologies, and mentor other engineers while ensuring performance, accessibility, and reliability across web surfaces.

Lead architecture and implementation for a secure distributed data platform runtime. Design Go-based concurrency, subprocess supervision, inter-service protocols, distributed persistence, and resilient processing pipelines. Debug complex cross-process and network issues, define testing standards, conduct end-to-end integration and resilience testing, participate in on-call rotations, and lead incident post-mortems. Collaborate with product, engineering, and customer stakeholders to refine requirements and deliver production-ready capabilities. Requires up to 25% international travel to the Middle East.

Own and develop Curri’s React Native driver applications across iOS and Android. Lead mobile features from problem definition through deployment and measurement, build offline-first capabilities, background geolocation, and push notifications, and debug native modules and production issues. Collaborate directly with drivers, operations, Product, and Design while contributing to full-stack work and AI-assisted development.

Design and implement scalable first-mile networking solutions for Microsoft 365 Substrate and COSMIC. Drive design, dependency identification, coding, optimization, debugging, and on-call monitoring. Analyze production telemetry to improve reliability, performance, and observability. Act as a DRI, lead design and release plans, and collaborate with stakeholders to meet product requirements at global scale.

Develop and document enterprise-grade SaaS platform functionality while improving quality and performance. Responsibilities include full-stack development, functional and unit testing, defect triage, code reviews, API and process documentation, operational support in regulated environments, and collaboration within Agile and DevOps teams. The role requires expertise in C#, ASP.NET Core, T-SQL, Entity Framework Core, web technologies, software design, debugging, distributed architectures, and high-performance APIs.

Leads end-to-end development of software that validates and accepts hardware racks into Microsoft datacenters. Designs reliable, observable, and scalable workflows; translates hardware and operational requirements into platform capabilities; diagnoses production issues; improves automation and performance; and collaborates with software, hardware, networking, manufacturing, and datacenter teams. The role includes architectural design, implementation, testing, rollout, monitoring, documentation, and mentoring.

Build and operate production custody systems: signing service, key management, chain integrations, and transaction pipelines. Own end-to-end subsystems, integrate new chains, collaborate with cryptography on threshold signing and key recovery, write post-mortems, and produce clear async design docs and PRs.

Lead development of decision logic engines and regulatory consultation workflows for a federal Endangered Species Act platform. Implement species routing, agency-specific templates, REST integrations, testing, defect resolution, documentation, and approved updates. Maintain code review and version-control standards while supporting government acceptance and production feedback.

Lead architecture updates and REST API integration for a federal environmental consultation platform. Implement cloud data integration, species display functionality, consultation logic, interoperability fixes, demo environment support, production deployments, and operational documentation. The role requires backend development, federal application integration, accessibility compliance, Git-based development, FedRAMP deployment knowledge, and the ability to obtain Public Trust clearance.

Build and maintain backend computation engines for solar and electrical design. Develop simulation and optimization systems for PV and battery storage layouts, component selection, and electrical configuration. Translate physical models into reliable, scalable software, shape computation infrastructure, write tested code, mentor teammates, collaborate cross-functionally, and own services through production and on-call support.

Designs, codes, tests, documents, and supports complex software applications and integrations. Leads technical work across applications, translates business needs into functional solutions, performs impact analysis, estimates development work, and contributes to architecture and roadmaps. Collaborates with stakeholders, IT teams, vendors, and business units while mentoring developers and supporting project delivery. Requires experience with Angular, .NET, Azure or AWS cloud solutions, relational databases, integration tools, and software development lifecycles.

Modernize and maintain a large-scale React Native mobile app with offline-first architecture, BLE device integrations, data synchronization, and performance improvements. Influence architecture, mentor developers, collaborate across teams, and occasionally visit customer farms to understand workflows.