Explore 5 java react developer jobs from 3 hiring companies in Mount Union, PA, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Java React Developer

Huntingdon

State College

Altoona

Chambersburg

Carlisle

Lewistown

Allenport

Park Forest Village

Waynesboro

Hollidaysburg

Tyrone

Mechanicsburg

Shippensburg

Bellefonte

Schlusser

Boalsburg

Fountainhead-Orchard Hills

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Java React Developer Jobs

Altamira Technologies

Sev1Tech

Onsite

Hybrid

Remote

Altamira Technologies has a long and successful history providing innovative solutions throughout the U.S. National Security community. Headquartered in McLean, Virginia, Altamira serves the defense, intelligence and homeland security communities worldwide by focusing on creating innovative solutions leveraging common standards in architecture, data and security. Altamira believes that our people and the culture of our company differentiate us from other companies.Location: Warrenton VA / Augusta,GA / Centennial, CO / State College, PAPosition Description:&nbsp;We are seeking a Senior Software Engineer that possess a mix of talent areas related to full-stack development. As part of our team, you will provide software and web development services. Our ideal candidate would possess a broad range of skills as our scope of work spans various technologies. Examples of technologies we are currently using to support our customers include Java, Python, JavaScript, Angular, React, and ElasticSearch. Altamira Technologies Corporation encourages independent problem solving but also provides deep reach-back support and a collaborative environment for our engineering team. We are looking for candidates who have experience with developing and are not afraid to adapt to the right architecture, languages, and libraries to build the best systems for the mission and deliver the best user experience.Role and Responsibilities<ul><li style="font-size: 11.0pt;">Must have strong Java skills &ndash; no exceptions.</li><li style="font-size: 11.0pt;">Produce software based on desired functionality provided by users and analysts</li><li style="font-size: 11.0pt;">Interpret mission needs and requirements to produce user-friendly software systems</li><li style="font-size: 11.0pt;">Leverage continuous integration to create sustainable and maintainable software</li><li style="font-size: 11.0pt;">Interact with teammates and users through whiteboard sessions and/or design documents to establish circular feedback</li><li style="font-size: 11.0pt;">Able to meet deadlines and adjust to evolving scope as requested by customer.</li></ul>Education and Experience<ul><li style="font-size: 11.0pt;">Bachelor&rsquo;s in Computer Science, Computer Engineering, Electrical Engineering, or a related field</li><li style="font-size: 11.0pt;">Must have strong Java,&nbsp;JavaScript/Typescript experience &ndash; no exceptions.</li><li style="font-size: 11.0pt;">Other languages like Python, Angular, ELK stack, Redis, Web Services (REST), Containerization (such as docker, lxc), Kubernetes, helm, Machine Learning, Data Analytics, Android development, NoSQL and SQL databases, Xmidas are desired.</li></ul>Abilities and Competencies<ul><li style="font-size: 11.0pt;">Top Secret Clearance REQUIRED</li><li style="font-size: 11.0pt;">Self-motivated and eager to work intently to satisfy mission&nbsp;requirements</li><li style="font-size: 11.0pt;">Adaptable and has the desire to maintain our company culture</li><li style="font-size: 11.0pt;">Ability to effectively communicate in verbal and written communications</li><li style="font-size: 11.0pt;">Ability to multitask and adjust priorities as needed</li><li style="font-size: 11.0pt;">Work with a geographically disparate team.&nbsp;</li></ul>

Senior Software Engineer

Strong Java and JavaScript/TypeScript skills; full-stack development; experience with Java, Python, JavaScript, Angular, React, ElasticSearch; BS in CS/CE/EE.

<div>Altamira Technologies has a long and successful history providing innovative solutions throughout the U.S. National Security community.&nbsp;Headquartered in McLean, Virginia, Altamira serves the defense, intelligence and homeland security communities worldwide by focusing on creating innovative solutions leveraging common standards in architecture, data and security.&nbsp;Altamira believes that our people and the culture of our company differentiate us from other companies.</div><div>&nbsp;</div><div>Location: Warrenton, VA. State College, PA. Augusta, GA.</div><div>&nbsp;</div><div>Position Description: We are seeking Software Engineers that possess a mix of talent areas related to full-stack development. As part of our team, you will provide software and web development services. Our ideal candidate would possess a broad range of skills as our scope of work spans various technologies. Examples of technologies we are currently using to support our customers include Java, Python, JavaScript, Angular, React, and ElasticSearch. Altamira Technologies Corporation encourages independent problem solving but also provides deep reach-back support and a collaborative environment for our engineering team. We are looking for candidates who have experience with developing and are not afraid to adapt to the right architecture, languages, and libraries to build the best systems for the mission and deliver the best user experience.</div><div>&nbsp;</div><div>Role and Responsibilities</div><ul style="margin-top: 0.0px;"><li>Produce software based on desired functionality provided by users and analysts</li><li>Interpret mission needs and requirements to produce user-friendly software systems</li><li>Leverage continuous integration to create sustainable and maintainable software</li><li>Interact with teammates and users through whiteboard sessions and/or design documents to establish circular feedback</li></ul><div>Education and Experience</div><ul style="margin-top: 0.0px;"><li>Bachelor&rsquo;s in Computer Science, Computer Engineering, Electrical Engineering, or a related field</li><li>Experience&nbsp;in one or more of the following: Java,&nbsp;JavaScript/Typescript, Python, Angular, ELK stack, Redis, Web Services (REST), Containerization (such as docker, lxc), Kubernetes, helm, Machine Learning, Data Analytics, Android development, NoSQL and SQL databases, Xmidas, Digital Signal Processing</li></ul><div>Abilities and Competencies</div><ul style="margin-top: 0.0px;"><li>MUST BE A U.S. CITIZEN AND BE ABLE TO OBTAIN UP TO A TS/SCI CLEARANCE.&nbsp;&nbsp;</li><li>Self-motivated and eager to work intently to satisfy mission requirements</li><li>Adaptable and has the desire to maintain our company culture</li><li>Ability to effectively communicate in verbal and written communications</li><li>Ability to multitask and adjust priorities as needed</li></ul>

Software Engineer

Bachelor's in Computer Science, Computer Engineering, Electrical Engineering, or related field; experience with Java, Python, JavaScript/Typescript, Angular, ELK stack, Redis, REST, Docker, Kubernetes, Helm, Machine Learning, Data Analytics, Android; ability to obtain TS/SCI clearance; US citizenship.

Altamira Technologies has a long and successful history providing innovative solutions throughout the U.S. National Security community. Headquartered in McLean, Virginia, Altamira serves the defense, intelligence and homeland security communities worldwide by focusing on creating innovative solutions leveraging common standards in architecture, data and security. Altamira believes that our people and the culture of our company differentiate us from other companies.Location: Warrenton VA / Augusta,GA / Centennial, CO / State College, PAPosition Description: We are seeking a Junior Software Engineer that possess a mix of talent areas related to full-stack development. As part of our team, you will provide software and web development services. Our ideal candidate would possess a broad range of skills as our scope of work spans various technologies. Examples of technologies we are currently using to support our customers include Java, Python, JavaScript, Angular, React, and ElasticSearch. Altamira Technologies Corporation encourages independent problem solving but also provides deep reach-back support and a collaborative environment for our engineering team. We are looking for candidates who have experience with developing and are not afraid to adapt to the right architecture, languages, and libraries to build the best systems for the mission and deliver the best user experience.Role and Responsibilities<ul><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Must have strong Java skills – no exceptions.</li><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Produce software based on desired functionality provided by users and analysts</li><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Interpret mission needs and requirements to produce user-friendly software systems</li><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Leverage continuous integration to create sustainable and maintainable software</li><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Interact with teammates and users through whiteboard sessions and/or design documents to establish circular feedback</li><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Able to meet deadlines and adjust to evolving scope as requested by customer.</li></ul>Education and Experience<ul><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Bachelor’s in Computer Science, Computer Engineering, Electrical Engineering, or a related field</li><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Must have strong Java, JavaScript/Typescript experience – no exceptions.</li><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Other languages like Python, Angular, ELK stack, Redis, Web Services (REST), Containerization (such as docker, lxc), Kubernetes, helm, Machine Learning, Data Analytics, Android development, NoSQL and SQL databases, Xmidas are desired.</li></ul>Abilities and Competencies<ul><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Top Secret clearance REQUIRED  </li><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Self-motivated and eager to work intently to satisfy mission requirements</li><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Adaptable and has the desire to maintain our company culture</li><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Ability to effectively communicate in verbal and written communications</li><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Ability to multitask and adjust priorities as needed</li><li style="font-family: sans-serif , arial , helvetica;font-size: 11.0pt;">Work with a geographically disparate team. </li></ul>

Junior Software Engineer

Bachelor’s in CS/CE/EE or related field; strong Java and JavaScript/Typescript experience; experience with Python, Angular, ELK, Redis, REST, Docker/Kubernetes; TS/JS stack experience preferred; Must have Top Secret clearance.

GFT.

:
GFT is seeking a Senior Software Developer to join our Geosptial Team in either Baltimore, MD, Nashville, TN, or Richmond, VA, Mechanicsburg, PA; or Raleigh, NC! This role follows a hybrid work model, requiring regular attendance at the office. Working on the geospatial team offers a unique opportunity to harness the latest geospatial technology and data analytics to drive operational efficiency and innovation. As part of our dynamic team, you'll collaborate on projects that enhance data management and provide actionable insights for diverse clients, transforming how organizations use data to meet their goals. Join us to help bring science and art to organizing, integrating, and visualizing information in a way that prioritizes collaboration and creates enterprise solutions. <a href="https://www.gftinc.com/solutions/geospatial-analytics-technology/" target="_blank" rel="noopener">Discover some of our signature geospatial projects here.</a>    What you’ll be challenged to do: This is an excellent career opportunity for an experienced, motivated Senior Software Developer who thrives in a collaborative team environment. This person will join a diverse team that is currently working on a wide range of exciting geospatially based web applications, data analytics, data visualization, and automated decision support-oriented projects. A successful Senior Software Developer at GFT will have the experience to develop and maintain full-stack solutions, effectively interact with clients, and be a great team member In this capacity, the successful candidate will be responsible for the following: <ul><li style="margin-bottom: 0in;">Lead cross-functional technical teams to successfully deliver client solutions.</li><li style="margin-bottom: 0in;">Work productively in a team environment, maintaining good communication with cross-functional team members throughout the project lifecycle</li><li style="margin-bottom: 0in;">Design, develop, implement, document and maintain custom geospatial solutions</li><li style="margin-bottom: 0in;">Learn and apply a wide variety of technologies to deliver solutions</li><li style="margin-bottom: 0in;">Collaborates with project team members on requirement definition including user stories, acceptance criteria and sizing/ estimation.</li><li style="margin-bottom: 0in;">Work within an agile delivery methodology with a cross-functional team</li><li style="margin-bottom: 0in;">Provide excellent customer service to all clients</li></ul>

:
<div>What you will bring to our firm: </div><div><ul><li style="margin-bottom: 0in;">Bachelors Degree in Computer Science, Geography, GIS, Engineering, Math, Management Information Systems or related field.</li><li style="margin-bottom: 0in;">5+ years professional experience in application design, development, and operations</li><li style="margin-bottom: 0in;">Experience developing software leveraging agentic AI.</li><li style="margin-bottom: 0in;">Ability to lead a cross functional technical team.</li><li style="margin-bottom: 0in;">Understanding of application architecture best-practices</li><li style="margin-bottom: 0in;">Experience with full stack development including SQL, C# / Java, Python, HTML, CSS, and JavaScript</li><li style="margin-bottom: 0in;">Experience with modern web development technologies including ASP.Net Core, JavaScript, and Angular, React or Vue.JS.</li><li style="margin-bottom: 0in;">Ability to clearly communicate technical ideas, whether to other technical peers or non-technical project managers or customers</li><li style="margin-bottom: 0in;">Experience working with relational or NoSQL database management systems </li><li style="margin-bottom: 0in;">Must be able to read, write and speak English fluently</li><li style="margin-bottom: 0in;">Must be able to manage tasks and timelines effectively.</li></ul></div><div>What we prefer you bring: </div><div><ul><li>Experience with Esri software including ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS, and ArcGIS Runtime and their associated APIs or interfaces is preferred.</li></ul></div><div> </div><div>Compensation:</div><div>The salary range for this role is $105,000 - $145,000. Salary is dependent upon experience and geographic location.</div><div> </div><div>Featured Benefits: </div><div>• Hybrid (in-person and remote) work environment.</div><div>• Comprehensive benefits package including wellness programs, parental leave, and pet insurance, in addition to medical, dental, vision, disability, and life insurance.</div><div>• Tax-deferred 401(k) savings plan.</div><div>• Competitive paid-time-off (PTO) accrual.</div><div>• Tuition reimbursement for continued education.</div><div>• Commitment to professional development, access to internal and external training programs, and support of active participation in professional organizations</div><div>• Incentive compensation for eligible positions.</div> 

:
At GFT, a privately held AEC firm, we innovate where transportation, water, power, and buildings converge. We call this the Infrastructure of Life. We measure our success by the strength of our relationships – that’s why we’re the employer of choice for 5,000+ of the industry’s brightest engineers, planners, architects, inspectors, designers, and more. Our clients choose us for our expertise and prefer us for our nimble approach, creativity, and personal touch. Backed by over a century’s experience, together we’re building a lasting legacy for future generations: stronger communities, a healthier planet, and better lives. GFT: Ingenuity That Shapes Lives™ 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, disability, veterans’ status or other characteristics protected by law. Unsolicited resumes from third party agencies will be considered the property GFT. GFT does require the successful completion of a criminal background check for all advertised positions.  Sponsorship not offered for this position. Location: Baltimore, MD; Richmond, VA; Nashville, TN; Mechanicsburg, PA; Raleigh, NC Core Business Hours: 8:00 AM – 5:00 PM Employment Status: Full-Time #LI-KV1#LI-hybrid

Senior Software Developer

Senior software developer with 5+ years of experience in full-stack design and geospatial applications.

Overview/ Job Responsibilities:
Sev1Tech is seeking a Senior Software Engineer for the Naval Supply Systems Command (NAVSUP) Ordnance Information System (OIS) program based in Mechanicsburg, PA, and Yorktown, VA, as they modernize their legacy IT systems. This role will bring strong systems, software, cloud, and SAFE/Agile experience to provide technical expertise on a mission-critical program whose purpose is to develop and modernize OIS mission critical systems. In this hands-on position, you will work collaboratively to architect, design, build, deliver, and enhance highly available, scalable, real-time systems. You will exercise your judgment in determining and recommending the best designs based on customer business objectives, timelines, and other resource constraints. You will participate in all aspects of the software development lifecycle of a mission critical product including scope and work estimation, architecture and design, coding and unit testing. The right candidate will be working with our program’s developers, engineers, operations, and integration teams to support a complex program to provide Agile development and operations and maintenance on a mission-critical program. This position is remote but visits to customer site will be required. Currently, customer site visits for Program Increment Planning occur every 10 weeks. Primary Responsibilities: As Senior Software Engineer, you will:<ul><li>Participate in all aspects of the software development lifecycle of a mission critical product including scope and work estimation, architecture and design, coding and unit testing, and debugging and maintenance. </li><li>Translate customer needs into user stories and deliver working capabilities at the conclusion of each sprint.</li><li>Ensure software developed passes and completes stages within the CI pipeline.</li><li>Write automated test such as unit, integration, functional, 508, performance, and end-to-end</li><li>Develop in environments that utilize CI/CD tools for build, test, secure and deploy</li><li>Develop in a Docker and Docker Compose environment</li><li>Interface with software developers, analysts, and other project team members using Agile SCRUM methodology and SAFe to deliver features that enhance system capabilities and facilitate NAVSUP OIS’s mission.</li><li>Mentor other software developers on the team to enhance their skills.</li><li>Participate and/or lead sprint demonstrations and facilitate implementation of agreed upon ideas identified at retrospectives.</li><li>Work with others on product teams to develop solutions to hard problems that are impeding progress.</li><li>Effectively communicate technical challenges, options considered, and the recommended solution to team leads. </li></ul>

Minimum Qualifications:
<ul><li>Must have DOD Secret level clearance to start</li><li>Certification Requirement: Directive 8570.1/8140 - Security+ certification required</li><li>Bachelor’s degree with a minimum of 7 years of relevant experience.</li><li>Must be a self-starter with the ability to work independently with minimal supervision.</li><li>Experience developing in a microservices architecture</li><li>Experience developing in a containerized environment</li><li>Experience writing automated tests such as unit, integration, functional, 508, performance, and end-to-end.</li><li>Experience developing in environments that utilize CI/CD tools for build, test, secure and deploy</li><li>Experience with IT networks and technologies; preferably Spring Boot, Linux, Java, Java Servlet, JUnit, JavaScript, HTML, CSS, TypeScript, Axios, Maven, Vue.JS, Ionic, React</li><li>Experience with an agile lifecycle management tool (e.g., Jira, Azure DevOps, Gitlab Ultimate)</li><li>Proficiency with common SAFE and Agile practices, service-oriented environments, and better development practices</li><li>Experience with API Design and Management</li><li>Experience developing Web Services (SOAP, REST)</li><li>Excellent written and verbal communication skills</li></ul>

Desired Qualifications:
<ul><li>Bachelor’s degree with a minimum of 12 years of relevant experience preferred</li><li>Experience as a software developer supporting logistics IT systems</li><li>Familiarity with and prior use of test automation, e.g., Selenium, Citrus</li><li>Knowledge of AWS Relational Database Services</li><li>Experience with DevSecOps frameworks</li><li>Experience with Helm Charts</li><li>Experience as a developer within the AWS environment is a plus</li><li>Direct experience in providing customer support.</li><li>Experience with Message-Oriented Middleware (MOM)</li><li>Experience with Performance Optimization and Scalability</li><li>Experience with policies and procedures to escalate customer issues.</li><li>Experience with analytical and documentation requirements.</li></ul>

About Us:
Formed through the strategic union of Sev1Tech and ERT, Entarian is a premier provider of mission-critical engineering and technology solutions. Founded on a legacy of excellence dating back to 1993, Entarian is a product of an evolved and fully diversified engineering and federal technology leader. From deep space to defense and civilian missions, Entarian delivers secure, mission-aligned digital solutions that drive national resilience and operational effectiveness. We don't just support modernization; we define it. Join the Mission and Start your Career Journey: <a href="https://entarian.com/careers/" target="_blank" data-auth="NotApplicable" rel="noopener">Apply Directly via our Careers Portal</a>  Connect, Referrals & Inquiries? Email the team: <a href="mailto:careers@entarian.com" target="_blank" rel="noopener">careers@entarian.com</a> Entarian is an Equal Opportunity and Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.

DOD Secret clearance required; Security+ certification; Bachelor’s degree with 7+ years’ experience; experience with microservices, containers, CI/CD, and Agile/SAFe.

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