Top Senior 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.

The role involves building robust software solutions, mentoring engineers, analyzing business problems, and contributing to technical strategy in a collaborative environment.

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.

Drive architecture and implementation of the EnCompass corporate payments platform (UIs, APIs, webhooks, data streams). Define roadmap, build cross-cutting core services, improve time-to-market, ensure security and compliance, and foster engineering collaboration and quality through automation and testing.

The Cloud Software Engineer will design and operate distributed systems for ClickHouse's Observability platform, ensuring reliability and efficiency while working with various engineering and infrastructure teams.

Develop and maintain ClickHouse Cloud interfaces and dashboards, collaborating with multi-disciplinary teams to enhance user experience and system reliability.

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.

Design and build scalable full-stack features: high-performance Node/Go backend services, responsive React+TypeScript frontends, gRPC/REST APIs, background workers, SQL optimization, caching, Terraform-based AWS infrastructure, and mentor engineers while contributing to architecture, tests, and documentation.

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.

Hands-on Principal engineer who designs, builds, and operates production-grade Azure solutions with strategic customers; develops an observability-focused Azure service, supports live production via on-call and incident response, creates reusable tooling and reference implementations, and drives platform improvements while mentoring field engineering teams.

Design, develop, and deploy scalable Python and Java-based REST APIs for a multi-tenant web platform. Collaborate with product, data science, and behavioral health partners. Ensure best practices, security, and high quality across the software development lifecycle.

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.

Design, build, deploy, and operate backend services end-to-end. Maintain and evolve cloud infrastructure on GCP, implement monitoring and alerting, participate in on-call support, triage incidents, collaborate with frontend and product teams, review code, and mentor junior engineers to improve reliability and quality.

Build, deploy, and operate backend services end-to-end for Mozilla Ecosystem Services. Maintain cloud infrastructure on GCP, implement observability, participate in on-call rotations, triage incidents, collaborate with cross-functional teams on APIs and reliability, and mentor junior engineers.

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.

Design, implement, and operate large-scale distributed storage systems (index management and garbage collection). Drive design, debug and optimize code, own reliability/observability, act as DRI, participate in on-call rotations, and collaborate with stakeholders to define requirements and release plans.

Senior engineer on the Encoding team contributing production C++/Java/Kotlin code, triaging and resolving encoding issues for US enterprise accounts during EU off-hours, debugging distributed systems, traveling to customer sites for integrations and workshops, and feeding field learnings into the product roadmap.

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.