Top Software Engineer Jobs in Jacksonville, FL

Implement EVM-compatible features, optimize gas usage, develop and test smart contracts, collaborate on Ethereum infrastructure, troubleshoot Ethereum issues, and stay current with Ethereum advancements.

Develop and maintain high-security mobile applications using React Native, Swift, or Kotlin. Implement biometric authentication and secure key storage, collaborate with cross-functional teams to deliver features, troubleshoot and optimize app performance, and propose enhancements based on emerging technologies.

The Software Engineer will build features across the stack, design AI/LLM-driven workflows, translate requirements, and collaborate closely with the founding team and customers.

As a Full Stack Software Engineer at Goodbill, you'll develop data systems and user experiences, work with diverse data sources, and integrate AI features, ensuring high-quality consumer-facing applications.

The Senior Full-Stack Software Engineer will design, build, and scale backend services and APIs for financial transactions while collaborating with frontend engineers and contributing to technical design.

Design, build, and maintain data platform tools, ensuring data quality and integrity. Collaborate with data science teams and enforce best software practices.

As a Software Engineer at Espresso, you will design and implement core blockchain infrastructure in Rust, focusing on transaction processing and consensus.

The Software Engineer will develop the Socket web application, design interfaces, write APIs, and contribute to team growth and culture. Responsibilities include building systems and collaborating with design and engineering teams to ensure a delightful user experience.

Design and build systems for managing bare-metal infrastructure, focusing on automation, hardware provisioning, and software integration with Linux systems.

Design, develop, and maintain mobile applications in Kotlin, ensuring healthcare compliance, collaborating with teams, and mentoring others.

Design, build, and operate reliable and scalable systems to support Anrok's product, focusing on technical debt, security, and performance optimization.

We are seeking a Senior Frontend Software Engineer to build advanced web applications using JavaScript and ReactJS, collaborating with a team to enhance user experiences.

The Senior Backend Software Engineer will build intricate backend systems, develop APIs, ensure high availability, and improve application scalability and performance.

Lead and manage software engineering teams, architect scalable systems, and innovate solutions while collaborating with stakeholders across various technology stacks.

Lead full-stack development on a React Native frontend and FastAPI Python backend for an AI-driven healthcare product. Design APIs, ship user-facing features, drive architecture, write tests, collaborate with ML researchers and clinicians, and deliver scalable, reliable production systems.

Design, build, and maintain scalable, secure cloud infrastructure and SRE practices. Implement IaC, Kubernetes/Helm deployments, CI/CD pipelines, monitoring/observability, automation, security/compliance, capacity planning, and mentor junior engineers to ensure reliability and performance.

Design, develop, and maintain secure, scalable C#/.NET microservices running in Azure and Kubernetes. Implement data access with Azure Cosmos DB and Azure SQL, build RabbitMQ event-driven workflows, automate Azure infrastructure with Terraform, and manage CI/CD via Azure DevOps. Integrate with identity providers, ensure tenant-aware access control, perform code/design reviews, and mentor engineers while aligning systems with security and privacy requirements.

Build and ship first-party risk management features end-to-end: risk registers, risk scoring, control testing, monitoring, and framework integrations. Implement backend services/APIs and React/TypeScript front-end components, collaborate with product/design/QA, and ensure data integrity and test coverage in a compliance-focused SaaS product.

Provide technical leadership across the simulation platform: define architecture, drive feature delivery, debug complex multi-module issues, conduct code reviews, collaborate on QA/CI/CD, and mentor engineers to modernize and maintain the legacy Windows desktop codebase.

Drive architecture, design, and implementation of large-scale software systems. Lead technical strategy, mentor engineers, collaborate cross-functionally, ensure code quality and operational reliability, and guide delivery of complex features and platform improvements.

Design, develop, and maintain MSSQL database solutions and applications. Maintain COBOL production apps, write C# (.NET Core) code, use Python/PowerShell scripting, troubleshoot and optimize performance, participate in code reviews, and adopt AI-enabled tools to improve workflows.

Lead design and deliver full-stack SaaS features end-to-end, implement Node.js back-end APIs, build SPA front-ends (React/Vue/Ember), mentor engineers, define architecture, write documentation and tests, troubleshoot production issues, and collaborate in Agile teams.

Lead design and implementation of full-stack SaaS features, mentor engineers, architect scalable systems, write APIs and tests, troubleshoot issues, and collaborate across product, design, and engineering.

Design and implement Wi‑Fi 6 (802.11ax) and 802.11s mesh networking software for enterprise access points. Develop HMAC components, optimize throughput/latency/airtime, integrate on NXP-based Embedded Linux platforms, maintain hostapd/wpa_supplicant/mac80211, debug with packet captures, and collaborate with RF/firmware/QA teams for product releases.

As an Applied R&D Engineer, you will develop backend application software in a Kubernetes environment, focusing on streaming APIs, system design, and code quality.