Explore 3 technology engineer sr java full stack developer jobs from 3 hiring companies in Williamsport, MD, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Technology Engineer Sr Java Full Stack Developer

Halfway

Hagerstown

Martinsburg

Robinwood

Frederick

Fountainhead-Orchard Hills

Waynesboro

Chambersburg

Saint James

Ballenger Creek

Wilson-Conococheague

Winchester

Leesburg

Germantown

Damascus

Ashburn

Maugansville

Gaithersburg

Clarksburg

Technology Engineer Sr Java Full Stack Developer Jobs

CACI

DXC Technology

Karsun Solutions

Hybrid

Onsite

Job Description:<h2>DXC Technology (NYSE: DXC) helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability across public, private, and hybrid clouds. The world’s largest companies and public sector organizations trust DXC to deploy services across the Enterprise Technology Stack to drive new performance levels, competitiveness, and customer experience. Learn more about how we deliver excellence for our customers and colleagues at DXC.com. </h2><h2></h2><h2>Location: Washington, DC Metro (Hybrid).  Hybrid role with 2–3 days onsite at client locations. Candidates within 25 miles of a DXC office are expected to be on-site two days per week.</h2><h2></h2><h2>Overview: </h2><h2>The Senior PeopleSoft Application Developer is responsible for designing, enhancing, and supporting enterprise PeopleSoft applications in a secure, federally managed services environment. This role is PeopleSoft-first and focuses on PeopleTools development, Fluid UI, integrations, and platform modernization, with support for the use of Java and related technologies to extend and integrate PeopleSoft capabilities.</h2><h2>This is not a generic Java full-stack role. Candidates should bring deep hands-on PeopleSoft technical experience and the ability to modernize and integrate PeopleSoft in cloud-aligned architectures.</h2><h2>Candidates must hold a DOD Secret Clearance and be a U.S. Citizen.</h2><h2></h2><h2>Key Responsibilities</h2><ul><li><h2>Design, develop, and enhance PeopleSoft applications using PeopleTools, Application Designer, Application Engine, and Fluid UI</h2></li><li><h2>Build and support PeopleSoft integrations using Integration Broker, REST/SOAP services, and third-party interfaces</h2></li><li><h2>Perform PeopleSoft Update Manager (PUM) image updates and PeopleTools upgrades</h2></li><li><h2>Support Oracle Database upgrades and performance tuning, including versions 23ai and 26ai</h2></li><li><h2>Contribute to PeopleSoft modernization and cloud migration efforts (OCI or Azure)</h2></li><li><h2>Develop supporting components using Java, SQL, and scripting where required for integration and extensibility</h2></li><li><h2>Implement automated testing, CI/CD pipelines, and DevOps practices for PeopleSoft environments</h2></li><li><h2>Manage and maintain PeopleSoft security, roles, and permissions in compliance with federal standards</h2></li></ul><h2></h2><h2>Required Skills &amp; Experience</h2><ul><li><h2>Active DOD Secret Clearance</h2></li><li><h2>U.S. Citizenship</h2></li><li><h2>8&#43; years of hands-on PeopleSoft technical development experience</h2></li><li><h2>Strong expertise in PeopleTools, Application Designer, Integration Broker, and Fluid UI</h2></li><li><h2>Experience with PeopleSoft Update Manager (PUM) and platform upgrades</h2></li><li><h2>Working knowledge of Java, SQL, and integration technologies supporting PeopleSoft</h2></li><li><h2>Experience with Oracle Database, including 23ai and 26ai</h2></li><li><h2>Familiarity with DevOps, CI/CD, and automated testing frameworks</h2></li><li><h2>Experience supporting federal or regulated enterprise environments</h2></li></ul><h2></h2><h2>Preferred Qualifications</h2><ul><li><h2>PeopleSoft and/or Oracle certifications</h2></li><li><h2>Experience with Oracle Cloud Infrastructure (OCI) or Azure-hosted PeopleSoft</h2></li><li><h2>Exposure to AI-enabled enhancements or chatbot integrations within PeopleSoft</h2></li><li><h2>Background in long-term managed services or production support environments</h2></li></ul>At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive.If you are an applicant from the United States, Guam, or Puerto RicoDXC Technology Company (DXC) is an Equal Opportunity employer. All qualified candidates will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, pregnancy, veteran status, genetic information, citizenship status, or any other basis prohibited by law. View postings below .We participate in E-Verify. In addition to the posters already identified, DXC provides access to prospective employees for the Federal Minimum Wage Poster, Federal Polygraph Protection Act Poster as well as any state or locality specific applicant posters. To access the postings in the link below, select your state to view all applicable federal, state and locality postings. Postings are available in English, and in Spanish, where required. View postings below.<a href="https://mandatoryview.com/?LicenceId&#61;c38a7700-5aa2-48a3-b95a-22e6e1fb0721&amp;ProductType&#61;OnlineApplicant" target="_blank">Postings Link</a>Disability AccommodationsIf you are an individual with a disability, a disabled veteran, or a wounded warrior and you are unable or limited in your ability to access or use this site as a result of your disability, you may request a reasonable accommodation by contacting us via <a href="mailto:GSS-HR-ER&#64;dxc.com" target="_blank">email</a>.Please note: DXC will respond only to requests for accommodations due to a disability.Recruitment fraud is a scheme in which fictitious job opportunities are offered to job seekers typically through online services, such as false websites, or through unsolicited emails claiming to be from the company. These emails may request recipients to provide personal information or to make payments as part of their illegitimate recruiting process. DXC does not make offers of employment via social media networks and DXC never asks for any money or payments from applicants at any point in the recruitment process, nor ask a job seeker to purchase IT or other equipment on our behalf. More information on employment scams is available <a href="https://nam12.safelinks.protection.outlook.com/?url&#61;https://careers.dxc.com/global/en%23fraud_warning&amp;data&#61;05%7c01%7cjhanda%40dxc.com%7cdfc9200ee54a4a2cbd1e08dbecc892f9%7c93f33571550f43cfb09fcd331338d086%7c0%7c0%7c638364118427715875%7cUnknown%7cTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7c3000%7c%7c%7c&amp;sdata&#61;s0zVysf9f4QibEs/xNc7yE0vzT4Ae61CRppkSzWUOGw%3D&amp;reserved&#61;0" target="_blank">here</a>.

Full Stack Developer

Active DoD Secret Clearance, U.S. Citizenship, 8+ years PeopleSoft development, strong PeopleTools/Integration Broker/Fluid UI, PUM, Oracle DB, Java/SQL, DevOps/CI/CD, federal/regulated environments experience.

Overview:
SummaryKarsun Solutions is seeking an experienced Senior Full Stack Developer to support and enhance existing applications while designing, building, and deploying new enterprise solutions. This role will serve as a technical lead responsible for maintaining legacy Java Server Pages (JSP), Python components, and PL/SQL scripts, as well as performing hands‑on troubleshooting of application issues, ETL workflows, and data quality challenges. The ideal candidate will also drive modernization initiatives, guiding the transformation of legacy systems into contemporary, well‑architected solutions and exploring the integration of artificial intelligence (AI) and machine learning capabilities to advance federal program objectives. 

Responsibilities:
What You'll Be Doing:<ul><li>Maintain and enhance legacy applications built with open‑source, COTS, and front‑end components using frameworks such as Tomcat, JSP, Node.js, jQuery, and Python, ensuring security, performance, and compatibility.</li><li>Troubleshoot and resolve data platform integration issues involving backend APIs and database connections to improve system reliability and efficiency.</li><li>Manage multiple ETL and data‑processing workflows, ensuring accurate data transformation and preparation.</li><li>Analyze business requirements, design system architectures, and provide technical leadership for new technology initiatives.</li><li>Collaborate with business users to understand requirements and deliver functional enhancements.</li><li>Develop proofs of concept, prototypes, and demonstration environments to support solution development, including evaluating AI and machine‑learning capabilities.</li><li>Design, build, and maintain APIs, data management processes, and workflow architectures to modernize legacy applications.</li><li>Assess emerging AI tools, frameworks, and platforms to identify practical adoption opportunities aligned with mission and program needs.</li><li>Perform code reviews, write unit tests, and maintain applications using modern DevOps practices, including version control and CI/CD pipelines. Apply best practices in coding, testing, security, and software architecture to deliver modular and maintainable solutions.</li><li>Collaborate with cross‑functional teams, maintain technical documentation, support version control and release management, and contribute to reusable component design to improve efficiency and innovation.</li></ul> 

Qualifications and Education:
Required Qualifications:<ul><li>Bachelor’s degree in Computer Science, Information Technology / or Engineering (any field), Data Science, or related technical field.</li><li>10+ years of software development experience, including at least 1 year of hands-on experience, education or training in developing AI or machine learning solutions.</li><li>Ability to troubleshoot complex technical issues with integrated systems across applications and data tiers.</li><li>Experience building the architecture and design (architecture, design patterns, reliability, and scaling) of new and current systems.</li><li>Experience in implementing security protocols across services and products and deploying applications in cloud environments.</li><li>Experience with DevOps practices including Git-based version control and CI/CD pipelines.</li><li>Strong ability to communicate complex technical concepts to both technical and non-technical stakeholders.</li></ul>

Compensation:
The proposed salary range for this role is $****** to $******* USD. The salary range provided is a good faith estimate representative of all experience levels. Karsun considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Senior Full Stack Developer

10+ years software development; AI/ML exposure; Bachelor's in CS/IT/Engineering; strong troubleshooting, architecture, DevOps, security, and communication skills.

Job Title: Gen AI DeveloperJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: NoneEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * * The Opportunity:CACI is currently looking for a Gen AI Developer to join our BEAGLE (Border Enforcement Applications for Government Leading-Edge Information Technology) Agile Solution Factory (ASF) Team supporting Customs and Border Control (CBP) client located in Northern Virginia! Join this passionate team of industry-leading individuals supporting the best practices in Agile Software Development for the Department of Homeland Security (DHS).As a member of the BEAGLE ASF Team, you will support the men and women charged with safeguarding the American people and enhancing the Nation’s safety, security, and prosperity. CBP agents and officers are on the front lines, every day, protecting our national security by combining customs, immigration, border security, and agricultural protection into one coordinated and supportive activity.ASF programs thrive in a culture of innovation and are constantly seeking individuals who can bring creative ideas to solve complex problems, both technical and procedural at the team and portfolio levels.You will excel at developing innovative software solutions as part of a technically diverse and geographically disbursed team. A strong passion for AI technologies and experience with agile delivery and deploying software in short sprints.   Responsibilities:<ul><li>Design, develop, and implement custom software solutions for a variety of AI/ML-related pilot projects and use cases.</li><li>Act as a member of one or more prototyping teams supporting teammates and collaborating to deliver working software applications on short timelines.</li><li>Analyze complex project-related problems and creating innovative solutions involving technology, methodology, tools, and solution components.</li><li>Actively participate in agile delivery phases and ceremonies including release and sprint planning, artifact creation, sprint testing, demonstrations, and retrospectives</li><li>Staying current with the latest advancements in AI technologies, tools, and best practices.</li><li>Design systems that can scale horizontally and handle high availability</li><li>work with Data Scientist teams to integrate applications with AI/ML, Big Data, or BI solutions</li><li>Ability to work independently on a complex task with little direction and management oversight.</li></ul> Qualifications: Required: <ul><li>Must be a U.S. Citizen with the ability to pass CBP background investigation, criteria include, but not limited to:</li></ul><ul><li>3-year check for felony convictions</li><li>1 year check for illegal drug use</li><li>1 year check for misconduct such as theft or fraud</li></ul><ul><li>BA/BS Degree. Will consider experience in lieu of degree.</li><li>10 or more years of full stack software development experience or related role which includes experience with front-end frameworks such as React / Angular, and possess a comprehensive knowledge of both SQL and NoSQL databases</li><li>Ability to analyze technically complex problems and develop and implement new and innovative solutions in a fast-moving and fluid software prototyping development environment.</li><li>Expertise in multiple software developer languages including, but not limited to: Python, Java, JavaScript, and TypeScript</li><li>Demonstrated experience with cloud services and platforms (AWS and Google) which includes an understanding of how to deploy, manage, and scale applications</li><li>Familiarity with cloud architecture</li><li>Familiarity with fundamental Generative AI concepts, including Large Language Models (LLMs), transformers, and prompt engineering techniques.Exposure to or basic practical experience with relevant GenAI frameworks and libraries</li><li>Experience working with APIs for commercial or open-source models </li><li>Knowledge of virtual networks, load balancers, and content delivery networks (CDNs)</li><li>Experience working with DevSecOps.</li><li>Ability to develop and work with APIs including familiarity with RESTful services, knowledge of authentication methods, familiarity with data formats, and skilled in handling API errors.</li><li>Ability to understand API development and management.</li><li>Work hybrid schedule with an on-site requirement in Ashburn, VA for local candidates</li></ul> Desired:<ul><li>Technical certifications such as AWS Certified Developer and AWS AI Certified Practitioner  </li><li>Experience with DevOps (CI/CD) solutions such as GitLab, etc.</li><li>Experience with AI/ML solutions or complex solutions for predictive analytics, such as Google Vertex AI and AWS Bedrock</li><li>Experience working in a geographically dispersed, remote team.</li><li>Understanding of Data Science principles and best practices.</li></ul>- What You Can Expect: A culture of integrity.At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.An environment of trust.CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.A focus on continuous growth.Together, we will advance our nation&#39;s most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy. Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.Since this position can be worked in more than one location, the range shown is the national average for the position.The proposed salary range for this position is: $105,100-$231,100CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

Gen AI Developer

US citizen with ability to pass CBP background check; BA/BS or equivalent experience; 10+ years full-stack development including React/Angular; SQL and NoSQL; Python/Java/JavaScript/TypeScript; cloud experience (AWS/Google); API and DevSecOps; hybrid on-site in Ashburn, VA.

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Technology Engineer Sr Java Full Stack Developer Jobs in Williamsport, MD, US

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