Top Software Engineer Jobs in Jacksonville, FL

As a Senior Software Engineer, you will build and operate Upbound Spaces, resolve issues in SaaS environments, develop features, support project lifecycles, manage Kubernetes services, and enhance operational tools.

The Senior Software Engineer will design and develop backend systems and APIs, mentor other engineers, and resolve complex integration challenges in healthcare technology.

As a Senior Software Engineer at Upwave, you will build scalable backend systems, develop APIs, and engineer data pipelines while collaborating with product and data science teams.

Lead design and reliability of a financial data extraction platform, minimizing human validation through AI, and enhance system correctness for scale.

Lead the architecture and reliability of a financial data extraction platform, reducing human validation reliance by enhancing accuracy and scalability of systems while leveraging AI-driven solutions.

The Staff Software Engineer will lead the development of a scalable lending ecosystem, architect customer-centric financial products, and maintain product performance through collaboration with teams and implementation of best practices.

Designs and executes thorough test plans across the development lifecycle, uncovers defects early, ensures functionality, reliability, performance and regulatory compliance, participates in Agile ceremonies, documents knowledge in Confluence, supports release readiness, investigates customer issues, and partners cross-functionally to improve product quality.

Lead technical direction for patient-facing mobile and web products, rapidly prototype and ship features with product/design/clinical teams, mentor engineers, set architecture and development standards, and use AI tools to improve patient engagement, retention, and outcomes.

Design and build internal platforms, tooling, and AI-powered workflows to reduce developer friction, improve velocity, quality, and reliability. Partner with product, infra, and security to create reusable paved paths, measure impact with engineering metrics, and help define the Developer Experience practice.

Lead design and delivery of end-to-end calibration systems for perception sensors and robot kinematics. Build algorithms, fixtures, on-fixture software, data pipelines, validation, operator workflows, and fleet monitoring. Own fixture software and in-field self-check/recalibration, define downstream manufacturing requirements, and coordinate with vendors and contract manufacturers. Hire, mentor, and develop engineering talent for calibration work.

Design, build, and maintain payment integrations and a reconciliation data platform for high-volume restaurant transactions. Implement terminal-to-cloud flows, ingestion pipelines, matching engines, reporting UIs, and payment analytics. Provide technical leadership, documentation, and mentor teammates to ensure reliable settlement and reconciliation.

Lead development of CoLab's simulation review capabilities: ingest and process industry-standard simulation data, build high-performance visualization for large datasets, collaborate with Product and customers, and define architecture and UX for a new Simulation product area.

Lead development of search relevance and vector search features in Elasticsearch. Design and implement new algorithms and data structures, fix complex bugs, collaborate with a distributed team and the open-source community, and write idiomatic modern Java while improving search performance and relevance.

Design, implement, test, deploy, and operate core protocol features and Rust-based consensus clients. Own full lifecycle delivery, build conformance and adversarial tests, execute safe protocol upgrades, resolve availability/performance issues, and collaborate cross-functionally while maintaining high standards for correctness and security.

Build and operate the Data Plane Platform: design and implement scalable backend services in Go, REST APIs, and distributed systems; contribute full-stack using React and TypeScript for platform management; develop and run production cloud applications on AWS/GCP; ensure reliability through testing, CI/CD, and observability; troubleshoot across code and infrastructure and drive technical ownership.

The Senior Front-End Engineer will develop and maintain the UI application using React and TypeScript, ensure code quality, debug issues, and collaborate with design teams.

As a Senior Software Engineer, you'll build high-performing, scalable applications for Joyride's auction platform, working on new features and existing code.

Design, build, test, and continuously deploy scalable infrastructure and platform tooling. Create technical specs and rollout plans, collaborate with stakeholders, mentor teammates, support services in production, and shape engineering practices across teams.

Lead architecture and stabilization of a large-scale, multi-tenant CRM SaaS: own reliability, data-sync correctness, and performance; write production code (~40-50%); drive migration toward event-driven microservices; define observability, CI/CD, and AI-assisted development; mentor senior engineers and coordinate cross-team initiatives.

Design, build, and operate CRM SaaS features across Angular, Node.js, and PHP services. Own integrations, data synchronization, and high-throughput workflows. Improve scalability, reliability, observability, CI/CD, and incident response while mentoring teammates and helping modernize the architecture toward event-driven microservices on AWS.

Lead design and delivery of scalable, secure full-stack systems; mentor engineers; integrate AI-driven and agent-based workflows; ensure cloud-native, containerized deployments and secure SDLC practices.

Design and deliver end-to-end software solutions (APIs, microservices, scalable data models), optimize performance, lead architecture and code reviews, mentor engineers, build CI/CD and observability, document systems, create fault-tolerant distributed systems, and lead front-end and mobile performance work. Must demonstrate broad experience across multiple listed technologies.

Lead architecture, delivery, and operation of large distributed telemetry databases. Define technical strategy, SLOs/SLIs, and reliability practices; drive performance, cost, and observability improvements; lead incident response and cross-team projects; mentor engineers; and represent engineering to stakeholders.

Develop and maintain performant web applications in Go and Vue.js, design and implement RESTful APIs, optimize SQL queries and schemas, collaborate with product and design, participate in code reviews and testing, and work with cloud providers and CI/CD to improve platform performance and reliability.

Design, build, and maintain CRM+ features using C#, .NET, Vue, and SQL Server on Azure. Architect scalable services, use AI tools (Claude Code) in development, write well-tested code, mentor engineers, influence product and technical strategy, operate CI/CD, troubleshoot production issues, and collaborate cross-functionally.