Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Software Engineer (Mid) Java, MBSE & Modeling Tool Integration

$105k - $140k
Full-time

G2 Ops


 

​​ 

Quick Position Facts!

Location: Arlington at our wonderful G2 Ops office and customer site.

Work Setting: In person, some remote opportunity, and/or flexible working hours, not a fully remote position.

Salary Range: $105,000 - $140,000 plus comprehensive benefits package.

Years of Industry Experience: 5+ years of relevant experience.

Security Clearance Requirement: Must be able to obtain and maintain Active DoD Secret Clearance.

Where you make an impact: For this opportunity, we are seeking a highly motivated, team-oriented  Software Engineer . This exciting position will have the chance to work on just about any aspect there is as it pertains to develop and maintain Java-based modeling tool capabilities for SysML and MBSE workflows. This role will focus on extending a Cameo Systems Modeler plugin, building and maintaining model/diagram generation logic, integrating with AI-assisted structured-output workflows, and improving the reliability of schema-driven model creation across multiple repositories. 

What does this mean to you? T he ideal candidate is a pragmatic Java engineer who can work comfortably in a specialized engineering domain. They should understand how structured data maps into model elements and diagrams, and how to debug issues across repository boundaries, and deliver features iteratively while maintaining technical rigor:

  • Strong professional experience with Java.
  • Experience designing and maintaining object-oriented systems in a production codebase.
  • Experience working with JSON, parsing/serialization, and schema-driven data models.
  • Ability to debug complex workflows across UI, parsing, API integration, and backend generation logic.
  • Experience integrating software with REST or APIs.
  • Ability to work effectively in evolving codebases with mixed legacy and newer patterns.
  • Strong communication skills and ability to collaborate across software, systems engineering, and platform teams.
  • Experience building plugins or extensions for Cameo Systems Modeler, MagicDraw, or similar modeling tools.
  • Familiarity with SysML, MBSE, and model-based engineering concepts.

Preferred Qualifications

  • Experience with semantic model generation and diagram/presentation element creation.
  • Experience working with modeling tool APIs, sessions/transactions, and diagram automation.
  • Familiarity with Eclipse-based plugin environments.
  • Experience with JavaFX, Swing, or desktop plugin UI development.
  • Experience integrating AI/LLM capabilities into engineering workflows.
  • Familiarity with prompt/schema design for structured LLM output.
  • Experience with internal tooling or utility libraries similar to model/query/generation helper frameworks.

What makes someone choose one company over another?  Pay, benefits, training, work satisfaction, culture? At G2 Ops, you can have it all. We offer competitive pay and benefits, but what truly sets us apart is our collaborative culture. Here, you’re never just a payroll number or a cog in the machine; you’re part of a team that ensures every member is set up for success. Our team approach allows for each member to not only provide value with their expertise but also gives them the opportunity to cross-train in other areas in which they have an interest.

Let's talk salary.  The annual salary range for this position is $105,000 and goes up to $140,000  based on your qualifications. We also offer a competitive benefits package and have fringe benefits offered throughout the year. The benefits package value ranges from $13,000 for a single employee, and up to $28,000 for an employee and their family. With company standard annual performance reviews in place, plus excellence recognition awards, your performance will be rewarded and appreciated, we promise!

Embracing AI. At G2 Ops, we don’t just talk about AI—we use it. Our recent company-wide AI usage survey shows over 75% of our team is actively engaging with AI tools , making us a leader in real-world adoption among engineering, cybersecurity, and defense firms. Led by our Director of Operations for Production, the initiative has already identified clear, actionable ways for every role—technical and operational—to harness AI effectively. From engineering automation to proposal generation and risk modeling, G2 Ops is embedding AI directly into how we work.

We’re now launching the next phase: AI playbooks, secure tooling aligned with government security protocols, and real-time support for hands-on use across all departments. At G2 Ops, you'll not only work with cutting-edge technology , you'll help define how it's applied in real mission environments.

Want to work where AI isn’t hype, but habit ? Join us.

So, you want to work from home?  Let's be honest, remote work is not always all it's cut out to be. At G2 Ops, we offer a flexible schedule to meet the needs of our team members and customers. Due to the classification level of the projects we support as a Defense Contractor, we cannot offer fully remote opportunities at this time. You will have a shiny desk at our G2 Ops office and the ability to telework with prior approval.

We’ve worked hard to create a great culture where our team gets to come to a collaborative, exciting office environment, and we want you to join the fun!

Lastly, as we are working for the DoD, we are beholden to some requirements. The ideal candidate would already possess an active DoD Secret level clearance.

Quick Reminder , we are seeking a full-time   team member; the continuation of outside employment shall not constitute a conflict with the Company’s interest, including performing work for a customer or competitor.

Congratulations , you made it all the way to the end of this job posting! We look forward to learning more about you!

Benefits


  • 100% company-paid insurance for medical, dental, and vision for eligible employees and family members

  • 100% company-paid insurance for life, short-term (STD) and long-term disability (LTD) for eligible employees

  • 401(K) Plan with discretionary employer matching

  • 10 paid holidays

  • Paid time off (PTO)

  • Educational assistance

  • Work/life balance

  • Family-oriented culture

  • Competitive salaries

About G2 Ops, Inc. (G2 Ops)

G2 Ops leverages over a decade of experience integrating Systems, Cybersecurity, and Software Engineering techniques to provide solutions to a growing list of Government and private customers. We combine cutting edge tools with innovative engineering practices, data analytics, and risk algorithms that enhance visibility into complex infrastructures, optimizing resiliency in system design and operations.

G2 Ops is a woman-owned small business led by an executive staff known for providing innovative solutions to solve our nation’s most complex engineering challenges. G2 Ops has been named to the Inc. 5000 list of America’s fastest growing companies each of the last 8 years (2018-2025) and has locations in Arlington, VA, Virginia Beach, VA, and San Diego, CA.

G2 Ops, Inc. is an Equal Opportunity Employer. We consider all qualified applicants without regard to race, color, religion, sex (including pregnancy, sexual orientation, gender identity), national origin, age, disability, genetic information, protected veteran status, or any other protected characteristic in accordance with applicable federal, state, and local laws.

As a federal contractor, G2 Ops, Inc. will not discharge or otherwise discriminate against employees or applicants for inquiring about, discussing, or disclosing their own pay or the pay of another employee or applicant.

G2 Ops, Inc. participates in the E-Verify program. All employment offers are contingent upon verification of employment eligibility.

As part of our commitment to equal employment opportunity and in compliance with federal regulations, we invite applicants to voluntarily self-identify their disability and protected veteran status at the time of application or at any time thereafter. This information is kept confidential and will not be used in any employment decision.

Applicants have rights under Federal Employment Laws:

E-Verify Participation and Right to Work Notices:
Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Software Engineer (Mid) Java, MBSE & Modeling Tool Integration in Arlington, VA vacancy
  • $105k - $140k

     ...solving complex operational and engineering challenges. We are seeking...  ...motivated, collaborative Software Engineer to support Java-based modeling tool capabilities for SysML and MBSE workflows across. In...  ...diagram generation logic, integrate with AI-assisted... 
    Suggested
    Full time
    Temporary work
    Local area
    Remote work
    Flexible hours

    G2 Ops, Inc.

    Arlington, VA
    a month ago
  • $157k - $224k

     ...STR is hiring a Lead Model-Based Systems Engineer (MBSE) in our Woburn, MA...  ...to work with complex software systems and the utilization...  ...architectural integrity and traceability...  ...using system modeling tools (SysML in Cameo) Even...  ...Cameo Experience in Java, Python, or object‑oriented... 
    Suggested
    Full time
    Work experience placement
    Work at office
    Local area
    Remote work
    Flexible hours

    STR

    Arlington, VA
    3 days ago
  • $100.8k - $245.5k

    UI Java/Python Developer, Mid-Level TS/SCI with Poly REQUIRED Position...  ...of psychology, engineering, and design to...  ...however, a hybrid working model is acceptable....  ....    Human Factors Integration: Applying human factors...  ...Experience with design tools (e.g., PenPot, Adobe... 
    Suggested
    Work at office
    Local area
    Arlington, VA
    a month ago
  • $72k - $140k

     ...seeking a Navy Weapons System Model Based Systems Engineer. This position is for an...  ...engineering. The focus of the MBSE task is modeling of the system...  ...research on emerging tools, applications, and plug-ins...  ...problems Proficiency with Java or Python Proficiency in... 
    Suggested
    Contract work
    Temporary work
    Interim role
    Casual work
    Work at office
    Remote work
    Flexible hours

    SimVentions, Inc - Glassdoor ✪ 4.6

    Lorton, VA
    4 hours ago
  • $130k - $200k

    # Mid-Level Full Stack DeveloperAddison GroupFull...  ...APIs powering portfolio modeling and analytics* Build modern...  ...proposal workflows* Integrate market data, fund data,...  ...concepts into scalable software solutions* Maintain...  ...visualization or analytics tools* Experience building... 
    Suggested
    Full time
    Contract work
    Local area

    TryApplyNow

    Bethesda, MD
    3 days ago
  • $206k - $284k

     ...Principal Model-Based Systems Engineer (MBSE) STR is hiring a Principal Model...  ...processes and tools to achieve architectural integrity and traceability from...  ...analysis through system and software development through production...  ...language (C/C++, Java, Python) is highly... 
    Work experience placement
    Work at office

    Navstar

    Arlington, VA
    5 days ago
  •  ...Consulting is seeking a Mid-Level Software Developer to support the...  ...of developers and systems engineers responsible for ensuring...  ...Experience with automated integration or unit testing scripts....  ...Exposure to large language models or AI-enabled tools. Working knowledge of accessibility... 
    Full time

    SITEC Consulting LLC

    Laurel, MD
    4 days ago
  •  ...Mid-Level Systems Engineer Join a collaborative engineering team in the Tysons Corner, VA...  ...test operating systems, application software, and system management tools Monitoring & Maintenance:...  ...well-being, and flexible working models help ensure that everyone - regardless... 
    Local area
    Flexible hours

    Navstar

    McLean, VA
    4 days ago
  •  ...enables delivery models such as...  ...Service (IaaS), Software as a Service (SaaS...  ...focus involving integrations and data analytic...  ...using tools such as Terraform...  ...Mentors’ junior and mid-level developers...  ...computer science, engineering, or related...  ...skills in Python, Java, or similar... 
    Work experience placement

    Planet Technologies

    Washington DC
    26 days ago
  • $191k - $253k

     ...maturing high-potential, software-defined, AI-native...  ...Planning, Hardware, Test Engineering, Space, Networking,...  ...Software Engineer focused on Modeling and Simulation on the...  ..., you will develop, integrate, and maintain high-...  ...and Test data analysis tools and processes Work... 
    Full time
    Work experience placement
    Immediate start
    Relocation package

    Anduril Industries

    Washington DC
    1 day ago
  •  ...Our client seeks a Mid Systems Engineer, CyberArk, to support...  ...Help plan and execute software updates, patches, and...  ...Linux 8. Proficiency integrating CyberArk with...  ...troubleshooting, and data modeling/ERDs (preferred)....  ...artificial intelligence (AI) tools as part of its... 
    Hourly pay
    Permanent employment
    Contract work
    Local area

    Eliassen Group

    Washington DC
    17 days ago
  • $89.6k - $194k

    Java Software Developer, Mid-Level TS/SCI with Poly REQUIRED Position Description CGI Federal is...  ...Arlington office; however, a hybrid working model is acceptable. Your future duties...  ...requirements. .    Architects integration solutions to synchronize business... 
    Work at office
    Local area
    Arlington, VA
    more than 2 months ago
  •  ...performance feedback on other engineers and participate in...  ...% The Role As a Mid-Level Forward Deployed...  ...Identify integration issues, surface blockers...  ...Ontology ~3+ years of software engineering experience...  ...Python, TypeScript, or Java in cloud-based data platforms... 
    Remote job
    Full time
    Flexible hours

    Pvm, Llc

    Washington DC
    1 day ago
  • $188k - $275k

     ...delivers a platform of technology, tools, and teams that enables...  ...platform that gives network engineers, fleet engineers, and operations...  ...that let engineers design, model, and validate builds before physical...  ...and product scope. Tight integrations with backend APIs (likely... 
    Permanent employment
    Full time
    Temporary work
    Casual work
    Work at office
    Immediate start
    Remote work
    Flexible hours

    Coreweave

    Washington DC
    1 day ago
  • $130k

     ...Mid Data Engineer Ignite Digital enables national security agencies to accelerate decisions...  ...deploying intelligent solutions and AI integration for faster, better transformation....  ...workflows. Create and maintain data models, schemas and transformation logic to support... 
    For contractors
    Remote work

    Ignite Digital Services

    Washington DC
    2 days ago
  • $160k - $185k

     ...Riptide Technology is hiring a Software Developer / Integration Engineer for a hybrid role out of Washington, DC...  ...the TNM team.    Tactical Network Modeling (TNM) is a network emulation and...  ...the latest network technology and tools within the TNM tool suite.  The candidate... 
    Full time
    Immediate start
    Remote work
    2 days per week
    3 days per week

    Riptide Technology

    Washington DC
    1 day ago
  • $90k - $120k

     ...2 Ops is seeking a Model-Based Systems Engineer to develop and maintain...  ...an established MBSE framework, creating...  ...Collaboration & Integration (30%) Coordinate with...  ...-functional teams (software, hardware, test, integration...  ...management tools and supporting documentation... 
    Full time
    Temporary work
    Work at office
    Local area
    Remote work
    Flexible hours

    G2 Ops, Inc.

    Arlington, VA
    9 days ago
  • $168k - $252k

     ...ABOUT THE TEAM We are looking for software engineers with modeling and simulation experience. As part...  ...to develop cutting-edge simulation tools to model complex air and missile defense...  ...in coding practices and software integration practices. If you have a passion for... 
    Full time
    Work experience placement
    Local area
    Relocation package

    Anduril Industries

    Washington DC
    1 day ago
  •  .... Founded in 2007 by an Engineer-by-trade, Fusion Technology...  ...Experienced Software Developer: At least 3 years in Java or similar object-oriented...  ...AWS and used for systems integration as well as simulations/testing...  ...DevOps process and using tools like Bitbucket and Maven... 
    Temporary work
    Work at office
    Remote work

    Fusion Technology

    Washington DC
    2 days ago
  • $87.1k - $157.45k

     ...you ready to build software that makes a real-world...  ...seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook...  ...services and integrating secure, cloud-native...  ...interfaces with modern tools (e.g., React, Node....  ...: Python, Java, or JavaScript... 
    Contract work
    Local area
    Immediate start

    Leidos

    Alexandria, VA
    4 days ago
  • $150k - $200k

     ...Description About Millennial Software: Millennial Software...  ...Software is seeking a Mid-Senior Full Stack...  ..., high-performance tools in mission-critical environments...  ...bugs, patching and integration with external systems...  ...such as Rust, Java, and C++ and its many utilities... 
    Full time
    Shift work

    Millennial Software Solutions

    Fairfax, VA
    1 day ago
  •  ...they work. You don’t just use tools; you possess an innate...  ...re hiring a seasoned Senior Software Engineer to help us build a world class...  ...engineer in the Continuous Integration team within ES (Engineering...  ...distributed systems. ~ Fluency in Java, C++, Python or Go. ~... 
    Full time

    Snowflake

    Washington DC
    1 day ago
  • $80k - $105k

     ...over bureaucracy. Mid-Level Full Stack...  ...across the full software development lifecycle...  ...closely with engineers, architects, product...  ...applications using modern Java and JavaScript...  ...including unit, integration, functional,...  ...Docker and related tooling Collaborate with... 
    Full time
    Work experience placement
    Remote work
    Flexible hours

    Revolutional, LLC

    McLean, VA
    18 days ago
  •  ...Negotiable Job Title: Mid-Level Cloud-Based...  ...rules, as well as integrating FICO Blaze with...  ...BRE (Business Rule Engine) development Experience...  ...BRE rules to JAVA Web Services...  ...Decision Tables, Score Models, Decision Trees, Rule...  ...Experience using DevOps tools in a cloud... 

    CMT Services Inc

    Hyattsville, MD
    5 days ago
  •  ...The PKI Engineer, Mid designs, implements, and maintains enterprise public...  ...environment, this position integrates PKI capabilities with...  ...administer PKI platforms and tooling (for example, AD CS, commercial...  ...including CA hierarchies, trust models, OCSP/CRL mechanisms, and... 
    Contract work
    Work at office

    ASM Research, An Accenture Federal Services Company

    Washington DC
    5 days ago
  • $70.8k - $156.7k

    Mid SW Developer Position Description...  ..., mid-level software developer to...  ...hybrid working model is acceptable....  ...as Angular and Java/Spring Boot....  ...automated tests (unit, integration, and end-to-end...  ...development tooling, processes, and...  ..., Software Engineering, or related technical... 
    Local area
    Fairfax, VA
    25 days ago
  •  ...Software Developer (Mid-Level) ID 2026-3465 Job Locations US...  ...Transportation Command (USTRANSCOM) Integrated Booking System (IBS) program...  ...such as Angular and Java-based frameworks, based on experience...  ...Familiarity with CI/CD tools and DevSecOps practices... 
    Full time
    For contractors
    Local area

    Decision Point

    Reston, VA
    2 days ago
  •  ...the Lead Cloud Engineer role at Jobright...  ...in advanced software solutions. They...  ...as Code (IaC) tools such as Terraform...  ...native development models including the...  ...teams to integrate cloud services...  ...Seniority level Mid-Senior level Employment...  ...Engineer (JAVA) Washington, DC... 
    Full time

    jobright.com

    Washington DC
    4 days ago
  •  ...Senior Software Engineer Why choose between doing...  ...immersive technologies, modeling and simulation,...  ...engineering tools that support them...  ...deployment. – Building, integrating, and extending...  ..., C#, Python, or Java – Experience...  ...engineering (MBSE) tools and methods... 
    Work experience placement
    Local area

    MITRE

    McLean, VA
    3 days ago
  • cFocus Software seeks a Mid-Level Application Developer to join our program supporting the Department...  ...awareness applications and tools to meetspecific organizational needs....  ...plans and test scripts to ensure that the integrity and security of the system(s) are adequatelyprotected... 
    Full time
    Remote work

    PROVATOHR INC

    Washington DC
    6 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Software Engineer (Mid) Java, MBSE & Modeling Tool Integration. Be the first to apply!