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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer- Java Developer - **Company:** Four Sea Group, Inc. - **Location:** Aurora, CO, United States - **Experience:** Expert - **Salary:** $152,000.0 - $262,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, Component-Based Software Engineering, Software Applications, Automation of Tests, Unit Testing, Microsoft Azure, Code Review, Collaborative Software, Databases, Computer Engineering, Continuous Delivery, Continuous Integration, Software Design Patterns, DevOps, Java Platform Enterprise Edition (J2EE), Hibernate (Java), Integrated Development Environments, Java Platform Standard Edition (J2SE), Spring Framework, Junit, NoSQL, Object-Oriented Software Development, Scaled Agile Framework, Software Engineering, SQL Databases, Systems Integration, Testng, Google Cloud, Java Application Server, Enterprise Software Applications, Cloud Platform System, Spring-boot, Git, Solid Principles, Information Technology, Build Tools, Restful APIs, Software Version Control, Docker, Microservices - **Published:** August 11, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9085885/senior-software-engineer-java-developer ## About the Role The ideal candidate brings deep Java development experience, strong object-oriented design capability, and practical expertise building enterprise applications, APIs, microservices, and database-integrated solutions. This role also requires the ability to collaborate across software development, quality assurance, integration, and DevOps teams while providing technical guidance within the engineer's area of expertise., * Bachelor's degree in Computer Science, Software Engineering, Computer Engineering, or a related technical field, or equivalent practical experience. * Eight or more years of relevant software engineering experience, including substantial professional Java development experience. * Active Top Secret clearance needed to start with the ability to obtain and maintain a TS/SCI with CI Poly * Advanced proficiency developing enterprise applications using Java SE or Java EE. * Experience with Java frameworks such as Spring Boot, Hibernate, or comparable technologies. * Strong understanding of object-oriented design, established design patterns, and SOLID principles. * Experience designing and developing RESTful APIs, microservices, or service-oriented applications. * Experience integrating software with SQL, NoSQL, or comparable database technologies. * Experience developing and maintaining unit tests using JUnit, TestNG, or comparable frameworks. * Experience with build tools, Git-based version control, code reviews, and collaborative software-development workflows. * Experience troubleshooting production software, resolving performance concerns, and improving or refactoring legacy components. * Ability to independently own a major application component, service, or technical area and determine appropriate implementation approaches. * Ability to communicate technical decisions, risks, dependencies, and tradeoffs to engineering and program stakeholders. * Experience working within an Agile software-development environment. * Strong written and verbal communication skills. * All candidates must work in-person in Aurora (no virtual), * Experience developing software for U.S. government, defense, intelligence, or other secure mission environments. * Experience with automated testing pipelines, continuous integration, and continuous deployment. * Experience with Docker or another containerization technology. * Experience deploying or supporting applications within AWS, Azure, Google Cloud, or another cloud platform. * Experience modernizing enterprise or mission-critical Java applications. * Experience providing technical guidance or mentoring to other software engineers. * Experience working across software development, integration, test, and DevOps teams. * Experience with SAFe or another scaled Agile framework. ## Description Four Sea Group is seeking a Senior Software Engineer specializing in Java development to design, develop, modernize, and maintain complex software applications supporting secure customer missions. ## Related Videos - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [NoSQL Data Modeling for Front-end Developers](https://www.wearedevelopers.com/videos/297-nosql-data-modeling-for-front-end-developers) - [From boy scouting to redrawing the landscape](https://www.wearedevelopers.com/videos/1140-from-boy-scouting-to-redrawing-the-landscape) ## Related Articles - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)