Explore 4 java software engineer jobs from 2 hiring companies in Gautier, MS, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Java Software Engineer Jobs

Susquehanna International Group

Radiance Technologies

Onsite

Radiance Technologies is an employee-owned company with benefits that are unmatched by most companies in the Gulf Coast area. Employee ownership, generous 401K and profit sharing, health/dental/life/vision insurance benefits, interesting assignments, educational reimbursement, competitive salaries, and a pleasant work environment combine to make Radiance Technologies a great place to work and succeed.The Software Engineer will advance the capabilities of the Naval Oceanographic Office (NAVOCEANO) by providing software design, development, and maintenance. The position includes full lifecycle software support for web applications, user interfaces, geo-processing tools, GIS map services, REST interfaces, database manipulation applications/interfaces, and workflow management tools. NAVOCEANO is located at NASA’s Stennis Space Center and the work would be performed in NAVOCEANO’s facilities.Required Experience:<ul><li>Bachelor’s Degree in Software Engineering, Computer Engineering, Computer Science or any other relevant technical field</li><li>Secret Security Clearance with the ability to obtain and maintain a TS Security Clearance</li></ul>Desired Qualifications:<ul><li>Experience with:<ul><li>Programming languages such as Java and Python</li><li>Web languages such as HTML, CSS, JavaScript</li><li>Data structures</li><li>Algorithms</li><li>Unit Testing</li></ul></li><li>Self-motivated yet able to work well within a development team</li><li>Strong oral and written communication skills</li></ul>Strong additional consideration for experience with:<ul><li>REST interfaces</li><li>Web Servers such as Apache Tomcat or JBOSS</li><li>React JS and Type Script</li><li>Container paradigms such as Podman, Docker, and Kubernetes.</li></ul>Radiance Technologies is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.

Software Engineer

Bachelor's degree in a software-related field; Secret clearance with ability to obtain TS; experience with Java, Python, REST, web tech, GIS, and related tools.

Overview In our Corporate Systems AI team you’ll develop, customize, and integrate opportunities where AI can enhance operational efficiencies for in-house and third-party applications utilized across teams that span Human Resources, Payroll, Accounting, Tax, Legal, Marketing and Private Equity. You’ll have the opportunity to lead the integration of cutting-edge conversational AI technologies across our internal operations. Our end-users are our partners and by joining us, you’ll engage with them directly to enhance the functionality and usability of application suites that are instrumental to Susquehanna's success.   In this role you will:<ul><li>Work with technologies across the Microsoft Stack (C#, .NET, SQL Server, etc.) to manage full life cycle development. You’ll have the opportunity to stretch beyond them, too. As an example, we utilize Qlik as our BI platform.</li><li>Develop, implement, and optimize ChatGPT-based conversational systems.</li><li>Design and develop APIs for chatbot interactions servicing various communication channels.</li><li>Conduct data analysis and A/B testing to enhance chatbot experience.</li><li>Stay abreast of developments in fields of AI and machine learning.</li><li>Write robust, clean, and documented code to build scalable and secure AI applications.</li><li>Evaluate and integrate optimal technologies that align with organizational needs. </li><li>Collaborate with your team members and end-users, early, directly, and often. Teach learn, collaborate, and evolve the technical landscape real-time as business needs change.</li><li>Manage projects and technology initiatives within an application matrix that includes apps we’ve built from the ground up, 3rd party platforms that we customize, and custom systems integrations that ensure the solutions we implement are scalable Share your ideas; we encourage them all. So if you’ve thought of something that could improve business processes, enhance our technical environment, or evolve our development libraries, we want to hear more about it!</li></ul>What you can expect from us:  Real Impact: You will utilize your experience in conversational AI and ChatGPT-like models and join our forward-thinking team. You will be an integral part of the development team, working to advance our AI-driven conversational interfaces, implementing custom workflows and RAG, and enhance user engagement across multiple platforms. You’ll see how your contributions towards developing and supporting leading-edge hardware and software solutions make a firm-wide impact that makes us all smarter, faster, and better. Collaboration: Our systems engineers, network architects, technical analysts and software developers work together to create competitive edge through best-in-class technical solutions. Growth: For many of our roles, we don’t expect you to have prior industry experience in proprietary trading or financial services to succeed at Susquehanna. We’re looking for people who are naturally curious, relentless problem solvers, and have the desire to continuously innovate, learn, and grow.  Benefits: Susquehanna offers a wide array of competitive employee perks & benefits. What We're Looking For <ul><li>Bachelor's degree in Computer Science, Engineering, Mathematics or related discipline or its foreign equivalent plus 10 years of progressive experience developing software applications using an object-oriented language. Relevant experience can be substituted for education.</li><li>Strong understanding for programming languages (Ex: C#, Java, Python)</li><li>Strong understanding with natural language processing (NLP) and chatbot technologies</li><li>Working knowledge of OpenAI’s API or other conversational models.</li><li>Experience with cloud services like Azure, AWS.</li><li>Knowledge of RESTful API development and integration.</li><li>Knowledge of containerization and orchestration (Docker, Kubernetes)</li><li>Experience with GIT based code repositories.</li><li>General interest and enthusiasm for GPT/LLM technologies and their potential applications.</li><li>Ten (10) years of recent hands-on experience with .NET, C#, Python, or Java technologies; </li><li>Ability to meet deadlines and work well under pressure in a fast-paced team environment. </li><li>Willingness and ability to work in all phases of the Software Development Life Cycle.</li></ul> About SusquehannaSusquehanna is a global quantitative trading firm powered by scientific rigor, curiosity, and innovation. Our culture is intellectually driven and highly collaborative, bringing together researchers, engineers, and traders to design and deploy impactful strategies in our systematic trading environment. To meet the unique challenges of global markets, Susquehanna applies machine learning and advanced quantitative research to vast datasets in order to uncover actionable insights and build effective strategies. By uniting deep market expertise with cutting-edge technology, we excel in solving complex problems and pushing boundaries together. What we doWe are experts in trading essentially all listed financial products and asset classes, with a focus on derivatives trading. Through maket making and market taking, we handle millions of trading transactions around the world every day, providing liquidity and ensuring competitive prices for buyers and sellers. While our presence in the market is broad, our trading desks are highly specialized, allowing for a deep understanding of unique drivers of each asset class.  If you're a recruiting agency and want to partner with us, please reach out to <a href="mailto:recruiting@sig.com" target="_blank" rel="noopener">recruiting@sig.com</a>. Any resume or referral submitted in the absence of a signed agreement will not be eligible for an agency fee. #LI-AC1

Senior Software Developer | AI Tool Development | Experienced Hire

Senior Software Developer

Bachelor's degree in CS/Engineering/Math or related field with extensive software development experience; strong C#/Java/Python; NLP and chatbot knowledge; OpenAI API experience; cloud (Azure/AWS); REST APIs; Docker/Kubernetes; Git; GPT/LLM interest; 10+ years in .NET/C#/Python/Java.

Overview Susquehanna is seeking a Senior Software Developer to join our HR Technology & Shared Services development team, a specialized engineering group responsible for building secure, scalable, and business-critical platforms that support enterprise functions across the firm.This is a full-stack engineering role within a high-performance quantitative trading firm, where precision, security, and craftsmanship matter. The team designs and builds internal platforms that integrate with best-in-class third-party systems (UKG, ADP, payroll, compliance, and others) while also developing custom solutions that cannot be purchased off the shelf.The group operates a dedicated on-premises hardware environment to support systems responsible for highly sensitive firm data. As a Senior Developer, you will work end-to-end — from architecture and application design to deployment and operational support — in collaboration with experienced engineers and cross-functional stakeholders. <h1>What You’ll Do</h1><ul><li>Build solutions leveraging LLMs running on our on-prem GPU infrastructure</li><li>Design and build secure, scalable applications supporting critical business functions</li><li>Architect and maintain integrations across enterprise systems (HR, payroll, compliance, compensation)</li><li>Build internal tools and platforms where commercial solutions do not meet business needs</li><li>Work across the full SDLC: architecture → development → deployment → monitoring</li><li>Contribute to a dedicated on-premises infrastructure environment</li><li>Collaborate with engineers, analysts, and system owners to translate complex requirements into production-ready systems</li></ul> End-to-End Ownership  Engineers contribute across application, integration, and infrastructure layers.Security-Focused Engineering  Systems support highly sensitive data (e.g., compensation, performance, firm-wide workflows) and are designed with strict isolation and reliability standards.Complex Systems Environment  Multiple integrations, diverse data flows, and enterprise-scale workflows require thoughtful system design and strong engineering fundamentals.Firm-Wide Impact  The platforms built by this team directly support critical operational functions across Susquehanna. What We're Looking For <ul><li>Bachelor’s degree in Computer Science, Engineering, Mathematics or a related discipline. Relevant experience can be substituted for education.</li><li>10+ years of hands-on software development experience</li><li>Strong proficiency in C# or Java</li><li>Experience with SQL, Web Development, and API-driven architectures</li><li>Experience working with AI-assisted tooling (Copilot, Cursor, Claude Code, etc.)</li><li>Interest in understanding systems beyond code — including deployment, data flow, and reliability</li><li>Strong collaboration and communication skills across technical and non-technical teams</li><li>Any experience deploying solutions using AI for inference is a plus</li></ul>About SusquehannaSusquehanna is a global quantitative trading firm powered by scientific rigor, curiosity, and innovation. Our culture is intellectually driven and highly collaborative, bringing together researchers, engineers, and traders to design and deploy impactful strategies in our systematic trading environment. To meet the unique challenges of global markets, Susquehanna applies machine learning and advanced quantitative research to vast datasets in order to uncover actionable insights and build effective strategies. By uniting deep market expertise with cutting-edge technology, we excel in solving complex problems and pushing boundaries together. What we doWe are experts in trading essentially all listed financial products and asset classes, with a focus on derivatives trading. Through market making and market taking, we handle millions of trading transactions around the world every day, providing liquidity and ensuring competitive prices for buyers and sellers. While our presence in the market is broad, our trading desks are highly specialized, allowing for a deep understanding of unique drivers of each asset class.  If you're a recruiting agency and want to partner with us, please reach out to <a href="mailto:recruiting@sig.com" target="_blank" rel="noopener">recruiting@sig.com</a>. Any resume or referral submitted in the absence of a signed agreement will not be eligible for an agency fee. #L1-AC1#LI-Onsite

Senior Software Developer | HR Technology & Shared Services | Experienced Hire

Bachelor’s degree in CS/Engineering or related, 10+ years software development, strong C# or Java, SQL/Web/API, AI tooling experience, deployment/data reliability focus, strong collaboration.

Overview Susquehanna is looking for highly motivated full-time students for our 10-week trading system engineering summer internship program. This is a computationally intensive role that will allow you to use your strong technical skills to solve problems at the intersection of trading, data, and technology. Throughout the summer, you will receive education about how markets work by going through a deep dive into financial markets and Susquehanna’s approach to trading. You will also work on challenging projects for our trading strategy development teams in low latency C++ trading system development. Additionally, you’ll have the opportunity to work on projects side by side with senior developers who understand the nuances of building complex trading strategies. If your experience is a better fit for our 2027 Quantitative Strategy Development Internship, apply here: <a href="https://careers.sig.com/job/10838/Quantitative-Strategy-Developer-Internship-Summer-2027" target="_blank" rel="noopener">https://careers.sig.com/job/10838/Quantitative-Strategy-Developer-Internship-Summer-2027</a> What We're Looking For <ul><li>Enrolled in a bachelor's or master's program in computer science, computer engineering, mathematics, or closely related STEM discipline</li><li>Strong software development skills in C++, C, Rust, C#, or Java, and some Python experience.</li><li>Intention to graduate with a minimum of a bachelor’s degree and begin full time employment by August 2028</li><li>Exceptional logical reasoning skills</li><li>Visa sponsorship is available for this position. </li></ul> What's in it for you:<ul><li>Our non-hierarchical culture allows employees of every level to thrive and make impact. We are not your typical trading firm – the environment is casual, collaborative and we focus on continuous development.</li><li>Housing provided for duration of internship</li><li>Relaxed dress code: jeans and sneakers are the norm, shorts all summer long</li><li>Fully stocked kitchens for breakfast, lunch, snacks, and beverages</li><li>A forty thousand square-foot state of the art fitness facility with brand-new equipment, multi-purpose courts, group exercise classes, and locker room spaces</li><li>Discounts for dining, entertainment, shopping, travel, and attractions Social events including a poker tournament, dinners, and sporting events in Philadelphia On-site Wellness Center</li><li>On-site services such as a mailroom, barber, dry cleaning, and car maintenance</li><li>Opportunities to give back to the community through Susquehanna sponsored events and donation drives</li></ul> If you're a recruiting agency and want to partner with us, please reach out to recruiting@sig.com. Any resume or referral submitted in the absence of a signed agreement will not be eligible for an agency fee.

Trading System Engineering Internship: Summer 2027

Trading System Engineering Internship

Enrolled in a bachelor’s or master’s in CS/CE/Math or related STEM; strong C++/C/Rust/C#/Java and some Python; graduating by Aug 2028; visa sponsorship available.

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