Explore 4 java ms developer jobs from 3 hiring companies in Piqua, OH, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Java Ms Developer Jobs

Systems & Technology Research

Awetomaton

Northrop Grumman

Hybrid

Onsite

Awetomaton is seeking a Software Engineer to support existing customers. In this role, you will build services, APIs, UI components, and internal tools that expose cost and usage data to customers, business stakeholders, and companion systems. You will work with Data and Analytics Engineers to turn cost models and data pipelines into true software products capable of automated delivery and exploration of customer billing information. The ideal candidate will have a BS degree or higher in engineering or related field and have 3+ years of experience.
This position can be performed out of St. Louis, MO (preferred) or Dayton, OH. Active Top Secret clearance desired, but sponsorship available for exceptional candidates. We are looking for a candidate to start in the mid- May 2026 timeframe.
Criteria for success
<ul>
<li>Communicate effectively in both written and verbal form with peers &amp; decision makers</li>
<li>Demonstrate initiative when faced with limited guidance or ambiguous&nbsp;requirements</li>
<li>Integrate cost visibility into platform consoles and customer-facing portals</li>
<li>Implement billing workflows (billing cycles, audit logs, versioning)&nbsp;</li>
<li>Ensure reliability, observability, and security of cost accounting and billing services&nbsp;</li>
</ul>
&nbsp;
Required Experience and Skills
<ul>
<li>Strong backend engineering experience (Python, Go, Java, Node)</li>
<li>Experience building APIs and microservices</li>
<li>Familiarity with AWS services (API Gateway, Lambda, ECS, DynamoDB)</li>
<li>Familiarity with platform management concepts including containerization and Kubernetes</li>
<li>Understanding of authentication/authorization and multi‑tenant systems</li>
</ul>
Desired Education and Experience
<ul>
<li>MS in Computer Science, Engineering or related field &nbsp;</li>
</ul>
<ul>
<li>Experience with frontend frameworks (React) and building user-facing interfaces</li>
<li>Experience building dashboards, charts, or self-service reporting tools</li>
<li>Familiarity with cost, billing, or metering systems in SaaS or cloud environments</li>
<li>Experience integrating backend services with platform consoles or customer portals</li>
</ul><div class="content-conclusion">About Awetomaton
We build software that enables humans to make informed decisions from raw intel data, with a specialization in satellite collection. We are a Dayton-based defense startup that believes there is a critical skill &amp; culture gap - one we are filling with high-output, mission focused engineering talent. Results matter to our customers. We've never lost a customer because we deliver what they need. Awetomaton is where you do work that matters with a passionate team in an environment that inspires your creativity.
Benefits
We provide industry leading benefits that balance your health &amp; wellbeing today, as well as lay a solid financial future into retirement. Highlights of our benefit plan include:
<ul>
<li>Flexible time off totaling 36 days / year. No approvals required.</li>
<li>100% 401k company match up to IRS annual limits. This is a benefit of up to $24,500 for 2026.</li>
<li>Health plan through Blue Cross Blue Shield with Health Savings Account (HSA). We pay 95% of employee premiums including family plans.</li>
<li>Employee favorite: Tech and Wellness reimbursement of $3000 / year. Treat yourself with the newest gadgets or athletic gear. No approvals required.</li>
<li>Annual profit sharing as 401k contribution. No set percent and dependent on annual company performance. Benefit is above and beyond 401k match.</li>
<li>MacBook laptop and well-equipped office spaces for optimal productivity in office and on-the-go.</li>
</ul>
&nbsp;</div>

Software Engineer 

Backend and API development with AWS exposure; 3+ years experience; MS preferred.

RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: NoCLEARANCE TYPE: Top SecretTRAVEL: Yes, 10% of the Time<h2>Description</h2>At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.Northrop Grumman Defense Systems (NGDS), Beavercreek Ohio, is seeking Full Stack Web Developers. The successful candidates will demonstrate a broad skill set balanced between interpersonal and technical capabilities achieving sustainable quality products. They will have a track record as an effective communicator and problem solver who is able to develop and maintain good working relationships with internal and external stakeholders. The selected candidates will participate in the entire software development lifecycle with a concentration in software engineering. They will implement solutions in a web-based environment and integrate them into a microservice cloud-based architecture. The candidates will work closely with other software developers accomplishing the following:<ul><li>Support team in completing necessary software on schedule</li><li>Complete work independently and as a part of an Agile team</li><li>Solve complex problems through innovative and creative solutions</li><li>Collaborate with software designers and/or software engineers in the planning, design, development, and utilization of software systems</li><li>Regularly demonstrate progress to customers</li></ul>     This requisition may be filled at a higher level based on qualifications listed below and is contingent on funding.Basic Qualifications:<ul><li>Software Engineer (Level 2): 2&#43; years full stack web development experience with Bachelor’s degree in Computer Science or related STEM degree from an accredited institution; 0 years with Master’s degree</li><li>Principal Software Engineer (Level 3): 5&#43; years full stack web development experience with Bachelor’s degree in Computer Science or related STEM degree from an accredited institution; 3 years with Master’s degree</li><li>U.S. Citizenship and ability to obtain a Top Secret security clearance</li><li>Experience with web front end development using JavaScript frameworks such as React or Angular</li><li>Experience with RESTful web services and framework such as Spring Boot or Django</li><li>Experience with server-side languages, such as Golang, NodeJS, Python, or Java</li><li>Familiarity with data description languages such as: XML, YAML, JSON</li><li>Experience with Linux operating systems</li><li>Experience with Docker/Podman (containerized deployment)</li><li>Experience with version control software (ex Git)</li><li>Experience with bug/issue tracking software such as JIRA</li></ul>Preferred Qualifications: <ul><li>Experience working with message queues (e.g., Kafka, Redis Streams) and cached data systems (e.g., Redis, Memcached)</li><li>Experience with Authentication/Authorization/Security related development (Keycloak, Open Policy Agent, OIDC, OAuth2)</li><li>Experience with relational and non-relational databases (e.g., MongoDB), and the ability to work with various data formats</li><li>Experience with Kubernetes, Istio, Helm</li><li>Familiar with Agile/Scrum or other software development framework</li><li>Experience using CI/CD automation tools such as Gitlab pipelines or Jenkins</li></ul>Primary Level Salary Range: $83,400.00 - $125,200.00Secondary Level Salary Range: $103,600.00 - $155,400.00The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

Full Stack Web Developer (AHT)

Full Stack Web Developer

2+ years full stack web development; BS in CS or related field or 0 years with MS; US citizenship with ability to obtain Top Secret clearance; strong frontend (React/Angular), REST, backend (Go/Node/Python/Java); Linux, Docker, Git, JIRA; knowledge of XML/YAML/JSON.

&nbsp;
STR is hiring a&nbsp;Principal Model-Based Systems Engineer (MBSE)&nbsp;in our Woburn, MA office (other locations: Dayton, OH &amp; Arlington, VA) to work across a broad portfolio of DoD mission areas. The Systems Engineer should have experience leading teams, architecting systems, working across the Systems Engineering Lifecycle, and have experience in Digital Engineering/MBSE. The candidate will support STR’s Systems Development Division in adopting processes and tools to achieve architectural integrity and traceability from requirements analysis through system and software development through production system deployment.
This position offers the opportunity to work with leading domain experts in sensors development and cyber security to incorporate MBSE tools and techniques. The ideal candidate will be well-versed in Systems Engineering techniques, Modeling and Simulation, Digital Engineering/MBSE and be excited about opportunities to mentor more junior staff and help foster growth of subject matter expertise across the organization.
In addition to modeling in SysML, the Systems Engineer will be responsible for implementing and guiding teams in the customization and automation techniques offered by Cameo to enable multi-disciplinary programs to comply with DoD Digital Engineering goals. Proficiency in one or more high-level language (C/C++, Java, Python) is highly desired.
The Systems Engineer should have experience implementing a rigorous MBSE approach to develop DoD systems. New programs at STR will be looking to adopt agile approaches that incorporate model-based requirements management and traceability with software development. This position is well suited for a Systems Engineer with a software development background who is interested in improving the state of the practice and demonstrating the advantages that MBSE can offer.
What you will do:
<ul>
<li>Leading development programs through the Systems Engineering process using MBSE approaches that support DoD Digital Engineering goals</li>
<li>Leading teams and implementing rigorous MBSE approaches using SysML in Cameo (MagicDraw)</li>
<li>Providing mentorship and training of Systems Engineers on the use of MBSE</li>
<li>Working closely with domain experts and software development teams to realize program designs and digital engineering goals</li>
</ul>
Who you are:
<ul>
<li>This position requires an Active DoD Secret Clearance with the ability to obtain a Top Secret (TS) Security Clearance, for which U.S. citizenship is needed by U.S. Government</li>
<li>BS, MS or PhD in Systems Engineering, Aerospace Engineering, or related technical field</li>
<li>Technical Project Lead experience</li>
<li>Minimum of 10 years work experience as a Systems Engineer or related field</li>
<li>Minimum of 5 years experience working with SysML models in Cameo (or similar tool)</li>
<li>Experience working with software-intensive systems and open architecture</li>
</ul>
Nice to haves:
<ul>
<li>Active Top Secret Security Clearance</li>
<li>10+ years’ experience in architecting systems using system modeling tools</li>
<li>Domain expertise in one or more of the following areas is desirable; Radar, Electronic Warfare, Acoustic, Antenna Apertures, Sensor Resource Management, Sea/Air/Space, Large-Scale Platform Test Systems, Cyber Physical Systems, Open System Architectures (UCI, OMS, COARPS)</li>
<li>Proficiency in Java, C/C++ or Python</li>
<li>Agile software development experience</li>
<li>Familiarity with specific government open architectures (e.g., Open Mission Systems)</li>
</ul>
Pay Information Full-Time Salary Range: $206,000 - $284,000
The salary range listed is based on external market data. Offers are based on factors, such as but not limited to, the candidate’s experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions.<div class="content-conclusion">STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, and Carlsbad, CA. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us.
STR&nbsp;is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, and we go home at night knowing that we pushed the envelope of technology and made the world safer.
STR is not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe! Visit us at&nbsp;<a href="http://www.str.us/">www.str.us</a>&nbsp;for more info.
 STR&nbsp;is an equal opportunity employer. We are fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws.
If you need a reasonable accommodation for any portion of the employment process, email us at&nbsp;<a href="mailto:appassist@str.us">appassist@str.us</a>&nbsp;and provide your contact info.
Pursuant to applicable federal law and regulations, positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.</div>

Principal Model-Based Systems Engineer

Active DoD Secret Clearance with ability to obtain Top Secret, BS/MS/PhD in a technical field, 10+ years Systems Engineering, 5+ years SysML in Cameo, software-intensive systems experience.

STR is hiring a Lead Model-Based Systems Engineer (MBSE)&nbsp;in our Woburn, MA office to work across a broad portfolio of DoD mission areas. The Systems Engineer should have experience architecting systems, working across the Systems Engineering Lifecycle, a deep understanding of Systems Engineering principles, reverse engineering techniques, and the ability to work with complex software systems and the utilization of Digital Engineering/MBSE to accomplish program goals. The candidate will support STR’s Systems Development Division to achieve architectural integrity and traceability from requirements analysis through system and software development and production system deployment.
This position offers the opportunity to work with leading domain experts developing solutions to solve the most challenging national security problems. Our teams consist of motivated individuals with degrees in engineering, computer science, mathematics, physics, and data science. The ideal candidate will be experienced in Systems Engineering processes and techniques, Modeling and Simulation, software-based systems, Digital Engineering/MBSE and be excited about opportunities to grow and be a source of subject matter expertise across the organization.
The Systems Engineer should have experience implementing a rigorous MBSE approach to develop DoD systems. New programs at STR will be looking to adopt agile approaches that incorporate model-based requirements management and traceability with software development. This position is well suited for a Systems Engineer with a software systems background who is interested in improving the state of the practice and demonstrating the advantages that MBSE can offer.
What you will do:
<ul>
<li>Utilize your Systems Engineering skillset as part of a tightly knit team to design, develop, implement, and deploy advanced software systems</li>
<li>Analyze, reverse-engineer, derive, and define requirements from ambiguous or incomplete software system implementations and codebases</li>
<li>Develop/generate documentation (e.g. Systems Requirements Document, SysML models) to capture requirements of new and existing systems</li>
<li>Perform gap analysis between derived requirements and current system capabilities to identify missing features or functionalities</li>
<li>Assist other technical contributors throughout the software lifecycle, from early prototypes to fully integrated systems</li>
<li>Implement MBSE approaches using SysML in Cameo</li>
<li>Work closely with domain experts and software development teams to realize program designs for a diverse set of applications, including:</li>
<ul>
<li>Distributed mission planning</li>
<li>Intelligence Surveillance Reconnaissance (ISR) management</li>
<li>Decision making support to human analysts/planners</li>
</ul>
</ul>
<ul>
<li>This position is based in one of our offices but will take advantage of STR’s flexible, hybrid environment: we anticipate that you could work remotely as much as 25% of the time</li>
<li>Any time work does not require use of STR’s facilities, you are welcome to work remotely</li>
</ul>
Who you are:
<ul>
<li>This position requires an Active DoD Top Secret Clearance with SCI eligibility, for which U.S. citizenship is needed by U.S. Government</li>
<li>BS, MS or PhD in Systems Engineering, Computer Science, Aerospace Engineering, Electrical Engineering, or a related technical field</li>
<li>Experience implementing open architectures and integrating with large scale software-intensive systems and platform systems</li>
<li>Strong ability to derive requirements from existing software and capture new customer requirements, and translate those into development tasks for software teams</li>
<li>Comfortable working in dynamic environments and adjusting to changing priorities</li>
<li>Minimum of 8 years work experience as a Systems Engineer or related field</li>
<li>Minimum of 3 years experience architecting systems using system modeling tools (SysML in Cameo)</li>
</ul>
Even Better:
<ul>
<li>Domain expertise or familiarity with one or more of the following areas is highly desirable:
<ul>
<li>Sea, air, and space platforms, mission planning, and C2 systems</li>
<li>Sensor Resource Management</li>
<li>Electronic Warfare</li>
<li>Software deployment in cloud-based systems</li>
<li>Government Open System Architectures (UCI, OMS, COARPS)</li>
</ul>
</li>
<li>5+ years of experience in architecting systems using system modeling tools (SysML in Cameo)</li>
<li>Experience porting models/designs from SparxEA to Cameo</li>
<li>Experience in Java, Python, or object-oriented programming languages</li>
<li>Agile software development experience and/or certification</li>
</ul>
&nbsp;
Pay Information Full-Time Salary Range: $157,000 - $224,000
The salary range listed is based on external market data. Offers are based on factors, such as but not limited to, the candidate’s experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions.
&nbsp;<div class="content-conclusion">STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, and Carlsbad, CA. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us.
STR&nbsp;is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, and we go home at night knowing that we pushed the envelope of technology and made the world safer.
STR is not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe! Visit us at&nbsp;<a href="http://www.str.us/">www.str.us</a>&nbsp;for more info.
 STR&nbsp;is an equal opportunity employer. We are fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws.
If you need a reasonable accommodation for any portion of the employment process, email us at&nbsp;<a href="mailto:appassist@str.us">appassist@str.us</a>&nbsp;and provide your contact info.
Pursuant to applicable federal law and regulations, positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.</div>

Lead Model-Based Systems Engineer

Active DoD Top Secret clearance; BS/MS/PhD in a related technical field; 8+ years systems engineering; 3+ years SysML/Cameo; open architectures; strong requirements derivation; hybrid/remote work flexibility.

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