Top Software Engineer Jobs in Jacksonville, FL

As a Senior Software Engineer, you'll design and build distributed systems in Go, collaborate across teams, and ensure performance and reliability at scale.

As a Staff Software Engineer, you will design and maintain financial services, develop APIs, improve operations, and mentor engineers within a fintech startup.

Lead design and implementation of the payment integrations platform (APIs, SDKs, embedded web), build scalable payment rails (ACH), drive technical roadmap, mentor engineers, collaborate cross-functionally, and improve operations via automation, tooling, and observability.

Design, build, and operate backend platform services and infrastructure, owning features end-to-end from design through production. Improve reliability, performance, and scalability across services and the data layer, investigate and resolve production incidents, and convert fixes into durable improvements. Perform database work as needed (query/index tuning, sharding, capacity planning) and collaborate with SRE and application teams to meet zero-downtime SLAs. Mentor peers and raise engineering quality through reviews and best practices.

The role involves designing and implementing SaaS solutions, leading development teams, ensuring high software engineering standards, and maintaining system performance.

As a Senior Software Engineer, you'll design modern scalable platforms, focusing on front-end and back-end development using VueJS/ReactJS and C# microservices, while integrating with AWS and modern data warehouses.

Lead Android-first development of growth experiments and features, using AI-native workflows to design, implement, instrument, and analyze A/B tests. Ship performant, reliable Android experiences at scale, mentor teammates, participate in on-call, and codify AI-native engineering playbooks for broader adoption.

As a Staff Software Engineer, you'll lead technical execution across teams, design microservices, improve cloud deployments, and mentor engineers while focusing on architecture and delivery.

The Senior Software Engineer will develop software for automated mobile application analysis, lead implementation decisions, and mentor junior engineers.

Lead high-impact initiatives and architect enterprise-grade APIs while mentoring engineers. Collaborate across teams to influence technical strategy and scale platform architecture.

Design, build, and lead scalable API and platform features. Mentor junior engineers and drive technical initiatives from design to delivery.

Design, develop, test, and own SDKs and REST APIs for a next-generation analytics platform. Collaborate with Product Management, contribute to DevOps and quality frameworks, perform code reviews, and mentor teammates to deliver performant, well-tested software.

The Senior Software Engineer will lead technical initiatives, design scalable systems using Node.js and AWS, mentor engineers, and improve platform reliability.

As a Senior Software Engineer at MNTN, you'll design and operate backend systems for ad delivery, ensuring high performance and reliability. You'll work with Java, Kotlin, and Scala to handle high-throughput services and contribute to architectural decisions while improving system efficiency.

As a Senior Backend Engineer, you will enhance the Integrations platform for managing large data streams, collaborating with teams, and optimizing connectors.

The Staff Software Engineer will build and maintain GoGuardian's Safety product suite, lead architectural decisions, mentor developers, and champion AI adoption in engineering workflows.

Design, build, and maintain APIs and systems at Telnyx, debug production issues, improve engineering standards, and collaborate across teams.

Lead architecture and implementation of Chainguard Repository: design, build, and operate high-availability backend services in Go that serve package registries and APIs; improve scalability, reliability, observability, and load testing; drive technical decisions, collaborate across teams, and mentor engineers.

Lead design and build of a 0-1 Identity Graph platform for real-time identity resolution. Own architecture, implement high-performance synchronous read models, build data pipelines, enforce PII privacy boundaries, ensure production resilience and observability, and mentor engineering teams while aligning cross-team stakeholders.

Lead technical initiatives to design and build scalable, high-performance batch and real-time data pipelines and microservices. Use Big Data tools (Spark, Kafka, EMR, S3) and AWS services to ingest, store, transform, and query large datasets. Maintain and optimize systems, perform code reviews, mentor engineers, implement security and data governance, and collaborate with product teams in an Agile environment to deliver reliable production software.

The Senior Software Engineer will design and develop the PBM adjudication platform, mentor junior engineers, and maintain production systems using various technologies.

Build and own backend identity APIs and core authentication flows for scale. Partner with product and engineering leadership, author design docs, improve production resilience and observability, handle incident response and on‑call, collaborate across teams, and mentor other engineers.

Lead full-stack feature development for an enterprise IT lifecycle platform: design, build, test, and ship end-to-end solutions. Use AI tools to accelerate work while reviewing and hardening outputs. Mentor engineers, run code reviews, collaborate with stakeholders, set estimates and milestones, and influence product and roadmap decisions. Maintain reliability through testing, CI, and containerization.

Design and develop large-scale Java-based identity management features for PingIDM. Collaborate with distributed teams to analyze requirements, implement secure RESTful APIs, enable cloud deployments, optimize performance, and support customer-facing teams to resolve issues.

Lead architecture and roadmap for Twilio's Compliance Experiences platform, modernizing legacy systems into cloud-native microservices. Drive AI-augmented development, design high-availability APIs and data systems, mentor senior engineers, ensure regulatory-compliant developer experiences, and lead incident remediation and cross-team technical strategy.