Explore 3 java application developer jobs from 3 hiring companies in New Haven, MO, US. Filter by remote, salary, experience, and company, then open any listing to apply.

java-application-developer

Java Application Developer

Washington

Union

Wentzville

O'Fallon

Lake Saint Louis

Warrenton

Wildwood

Saint Peters

Chesterfield

Dardenne Prairie

Ballwin

Troy

Saint Charles

Manchester

Maryland Heights

Kirkwood

Creve Coeur

Webster Groves

Hazelwood

Java Application Developer Jobs

Mastercard

NISC

UniGroup

Hybrid

Onsite

Remote

Our PurposeMastercard powers economies and empowers people in 200&#43; countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.Title and Summary<h3></h3>Principal Software Engineer<h3></h3>Overview We are a St louis based development team building high value, cloud native applications. We are looking for brilliant and passionate software engineers to join our team. In this role you will play a leading role in building out a world class engineering team and design and implement world class innovative, high volume web applications. 	 Role 	• Design, code, document and test components / subsystems to a world class standard in an agile way 	• Be solution oriented – find and implement the ‘best fit’ solution to address the requirements on time 	• Work independently with teamwork spirit 	• Drive technology innovation within Commercial and across the company 	• Lead architectural design of various initiatives 	• Ensure adherence to established software development process 	• Share knowledge of various technologies to other team members 	• Mentor junior developers to technical leads. About You: 	• Do you love to code? 	• Do you have a passion for product design and technology innovation and have a high energy, can-do attitude and strong sense of ownership /desire to succeed? 	• Are you a talented software developer with a passion for delivering high quality, high performing and highly extensible software? 	• Do you have a strong background in developing and delivering high volume web services? Multiple examples of solutions deployed where you were a key architect and coder. 	• Current background in modern Architecture is a must. Background in Dev/Ops a distinct advantage. 	• Background in automation a distinct advantage. 	• You strive to create highly intuitive and responsive products. • You are comfortable with security concerns, authentication, authorization, and fixing vulnerabilities. Key Technology Areas: 	• Backend (Java/2JEE, Spring Boot, Python, API design, microservice architecture) 	• Frontend (CSS, HTML5, JavaScript, AngularJS) 	• Mobile (iOS, Android) 	• Database (Postgres, Oracle, MySQL, MongoDB)<h3></h3>Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.<h3></h3>Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:<ul><li>Abide by Mastercard’s security policies and practices;</li><li>Ensure the confidentiality and integrity of the information being accessed;</li><li>Report any suspected information security violation or breach, and</li><li>Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.</li></ul><h3></h3>In line with Mastercard’s total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.Pay RangesO'Fallon, Missouri: $170,000 - $281,000 USD<h3></h3><h3></h3><h3></h3><h3></h3>

Principal Software Engineer

Strong backend and frontend development experience; proficient in Java, Python, Spring Boot, API design, and microservices; experience with cloud-native web applications; leadership and mentoring skills.

<div>
<div>
<div style="font-size: 16px; text-align: center;">**This position is fully remote. In order to qualify for this role with UniGroup, you must live in one of the following states: Missouri, Illinois, Arkansas, Georgia, Tennessee, North Carolina, Texas, Florida, or Indiana.</div>
<div style="text-align: center;">Preference will be given to local candidates.**</div>
</div>
</div>
<div style="margin: 0; padding: 0; user-select: text; color: rgba(0, 0, 0, 1); font-family: 'Segoe UI', 'Segoe UI Web', Arial, Verdana, sans-serif; font-size: 12px; white-space: normal; background-color: rgba(255, 255, 255, 1);">
<div style="margin: 0; padding: 0; user-select: text; clear: both; cursor: text; overflow: visible; position: relative; direction: ltr;">&nbsp;</div>
</div>
<div style="margin: 0; padding: 0; user-select: text; color: rgba(0, 0, 0, 1); font-family: 'Segoe UI', 'Segoe UI Web', Arial, Verdana, sans-serif; font-size: 12px; white-space: normal; background-color: rgba(255, 255, 255, 1);">
<div style="margin: 0; padding: 0; user-select: text; clear: both; cursor: text; overflow: visible; position: relative; direction: ltr;">
 
Location:&nbsp;Fenton MO 
&nbsp;
The Software Engineer designs, develops, tests, and supports software applications that align with UniGroup&rsquo;s business objectives. This role contributes to both new development and system enhancements by writing clean, maintainable code and collaborating closely with peers, product partners, and senior engineers.
The ideal candidate brings a strong technical foundation, a collaborative mindset, and a desire to continue growing their skills while delivering high-quality solutions across UniGroup&rsquo;s software platforms.
 What You&rsquo;ll Do
<ul style="margin-bottom: 0in; margin-top: 0px;">
<li style="margin: 0in 0in 0in 0px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Design, develop, test, and deploy software solutions using modern tools and practices such as&nbsp;Java, Spring Boot, REST services, React, React Native, PostgreSQL, Kafka, TypeScript, Node, Git, CI/CD, AWS, Docker, and Kubernetes</li>
<li style="margin: 0in 0in 0in 0px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Drive AI initiatives, such as generative AI, agentic AI applications, or AI powered automation. </li>
<li style="margin: 0in 0in 0in 0px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Resource optimization using AI, including predictive analytics for planning and team efficiency. </li>
<li style="margin: 0in 0in 0in 0px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Develop large scale distributed systems, cloud infrastructure, and data intensive workloads. </li>
<li style="margin: 0in 0in 0in 0px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Translate user stories and technical requirements into working features with guidance from senior engineers</li>
<li style="margin: 0in 0in 0in 0px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Contribute to code reviews and testing efforts, applying quality standards related to performance, maintainability, and reliability</li>
<li style="margin: 0in 0in 0in 0px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Support application deployments and monitoring, including troubleshooting and resolving production issues</li>
<li style="margin: 0in 0in 0in 0px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Collaborate with cross-functional teams to plan and estimate technical work aligned with sprint goals and priorities</li>
<li style="margin: 0in 0in 0in 0px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Maintain and enhance existing systems, including participation in legacy modernization efforts and documentation</li>
<li style="margin: 0in 0in 0in 0px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Participate in knowledge sharing, mentoring, and continuous learning within the engineering team</li>
<li style="margin: 0in 0in 0in 0px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Suggest improvements to code quality, team processes, or tooling when appropriate</li>
<li style="line-height: 13.8pt; background: white; margin: 0in 0in 8pt 0px; font-size: 12pt; font-family: Aptos, sans-serif;">Perform other duties as assigned</li>
</ul>
&nbsp;
What You&rsquo;ll Bring
Required Qualifications
<ul style="margin-top: 0in; margin-bottom: 0in;">
<li style="margin: 0in 0in 0in 24px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Bachelor&rsquo;s degree in Computer Science, Information Systems, or a related field or equivalent practical experience</li>
<li style="margin: 0in 0in 0in 24px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">2+ years of experience in software development and/or application support</li>
<li style="margin: 0in 0in 0in 24px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Demonstrated ability to write, test, debug, and review code in a collaborative team environment</li>
<li style="line-height: 13.8pt; background: white; margin: 0in 0in 8pt 24px; font-size: 12pt; font-family: Aptos, sans-serif;">Familiarity with modern development practices, version control, and CI/CD workflows</li>
</ul>
Preferred Qualifications
<ul style="margin-top: 0in; margin-bottom: 0in;">
<li style="margin: 0in 0in 0in 24px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Exposure to supporting or enhancing legacy systems (e.g., mainframe environments)</li>
<li style="margin: 0in 0in 0in 24px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Experience working in agile or iterative development teams</li>
<li style="line-height: 13.8pt; background: white; margin: 0in 0in 8pt 24px; font-size: 12pt; font-family: Aptos, sans-serif;">Curiosity, strong problem-solving skills, and a willingness to learn from peers and mentors</li>
</ul>
&nbsp;
Why Work at UniGroup
At UniGroup, we&rsquo;re building technology that supports iconic brands like United Van Lines and Mayflower Transit, while fostering a culture that values collaboration, growth, and balance. We offer the stability of a long-standing organization paired with the opportunity to work on modern technologies and meaningful business initiatives.
Our employees benefit from:
<ul style="margin-top: 0in; margin-bottom: 0in;">
<li style="margin: 0in 0in 0in 24px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Competitive compensation and a comprehensive benefits package</li>
<li style="margin: 0in 0in 0in 24px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Medical, dental, and vision insurance with multiple plan options</li>
<li style="margin: 0in 0in 0in 24px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">401(k) retirement plan with company match</li>
<li style="margin: 0in 0in 0in 24px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Paid time off, company holidays, and paid parental leave</li>
<li style="margin: 0in 0in 0in 24px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Hybrid work environment supporting flexibility and work-life balance</li>
<li style="margin: 0in 0in 0in 24px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Learning and development opportunities, including technical skill growth and mentorship</li>
<li style="margin: 0in 0in 0in 24px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">A collaborative, team-oriented culture that values curiosity, accountability, and continuous improvement</li>
<li style="line-height: 13.8pt; background: white; margin: 0in 0in 8pt 24px; font-size: 12pt; font-family: Aptos, sans-serif;">The opportunity to contribute to enterprise-scale systems that support a nationwide network of agents and customers</li>
</ul>
Work Authorization
<ul style="margin-top: 0in; margin-bottom: 0in;">
<li style="margin: 0in 0in 0in 24px; line-height: 13.8pt; background: white; font-size: 12pt; font-family: Aptos, sans-serif;">Candidates must be legally authorized to work in the United States on a permanent basis</li>
<li style="line-height: 13.8pt; background: white; margin: 0in 0in 8pt 24px; font-size: 12pt; font-family: Aptos, sans-serif;">UniGroup is unable to provide visa sponsorship or employment authorization support now or in the future</li>
</ul>
&nbsp;
</div>
</div>
<div>
<div>
<div style="margin: 0px; padding: 0px; color: #393839; font-family: Arial, Helvetica, sans-serif; font-size: 12px; background-color: #ffffff;">
<div style="margin: 0px; padding: 0px;">
We foster diversity, in part, by imposing a strict policy of non-discrimination. Employment decisions are made without regard to race, color, ethnicity, national origin, sex, sexual orientation, gender identity, age, religion, disability, veteran or military status, genetic information or other status protected by the law.&nbsp;&nbsp;
</div>
</div>
<div style="margin: 0px; padding: 0px; color: #393839; font-family: Arial, Helvetica, sans-serif; font-size: 12px; background-color: #ffffff;">
We value the unique skills and experiences that veterans and separated service members bring to our workforce. While serving our country you have gained skills such as leadership, flexibility, and agility, which will help to make you successful here. We are dedicated to supporting military families and ensuring that we provide a welcoming environment for our country&rsquo;s heroes. We hope you consider joining the UniGroup family.&nbsp;
</div>
<div style="margin: 0px; padding: 0px; color: #393839; font-family: Arial, Helvetica, sans-serif; font-size: 12px; background-color: #ffffff;">
UniGroup is committed to the full inclusion of all qualified individuals. As part of this commitment, UniGroup will ensure that persons with disabilities are provided reasonable accommodations. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact&nbsp;<a rel="noopener" href="mailto:careers@unigroup.com" target="_blank">careers@unigroup.com</a>&nbsp;
</div>
</div>
</div>

Software Engineer

Bachelor's degree or equivalent experience; 2+ years software development or application support; ability to write, test, debug, and review code; familiarity with modern development practices, version control, and CI/CD workflows.

Software Developer II - Customer Care & Billing Utility Software (Front End)

Software Developer II

Develop and maintain front-end web applications on iVUE Connect Utility Customer Care & Billing; collaborate in cross-functional teams; strong front-end skills.

Java Application Developer Jobs in New Haven, MO, US | HiringCafe: every job on earth

Java Application Developer Jobs in New Haven, MO, US

Java Application Developer Jobs market signals in New Haven, MO, US

Companies appearing in this market

Work location mix in visible results