Top 831 Java software engineer/developer Jobs in Herndon, Va

Modeling, Analysis & Simulation (MA&S) Engineer
Peraton —Herndon, VA
- $135,000 - $216,000 a year
- Azure
- Computer Science
- 11+ years
- Health savings account
- Paid holidays
Senior Frontend Software Engineer - Clearance Required
Cydecor, Inc. —Reston, VA
- $130,917.59 - $195,000.00 a year
- Full-time
- Hybrid work
- Background check
- Computer science
- Azure
- Health savings account
- Paid holidays
Quick Apply
Sr. Software Engineer (C++)
Experis —Manassas, VA
- $65 - $70 an hour
- Contract
- Java
- Analysis skills
- C++
- Health savings account
- Disability insurance
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11d
Senior Sailpoint Engineer
Fannie Mae —Reston, VA
- $123,000 - $161,000 a year
- Full-time
- Office
- Java
- Analysis skills
Software Developer, Senior
Freddie Mac —McLean, VA
- $130,000 - $196,000 a year
- Full-time
- Computer Science
- 5 years
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Software Engineer
AttainIT Technologies —Herndon, VA
- Full-time
- System design
- Java
- Team management
- Dental insurance
- Paid time off
Quick Apply
Full Stack Java - Mid-Level to Senior Software Engineer - ACTIVE TS/SCI Required
Systems Definition, Inc —Reston, VA
- Computer Science
- Mid-level
- Windows
- Health insurance
- Dental insurance
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Software Developer (TS/SCI CI Poly) (5303) (Chantilly, VA; Herndon, VA; Aurora, CO)
SMX —Herndon, VA
- $110,800 - $184,700 a year
- Monday to Friday
- Software troubleshooting
- Mid-level
- AWS
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Sr. Software Engineer
Embedded Alliance —Gaithersburg, MD
- $160,000 - $192,000 a year
- Full-time
- Azure
- 6 years
- Computer Science
- Health insurance
- Dental insurance
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Backend Software Engineer - AI Trainer
DataAnnotation —Sterling, VA
- $50 - $100 an hour
- Contract
- Remote
- Mid-level
- In-person
- Flexible schedule
Programming Analyst - AI Trainer
DataAnnotation —Sterling, VA
- $50 - $100 an hour
- Contract
- Remote
- Mid-level
- In-person
- Flexible schedule
Software Engineer
Constellation Inc —Washington, DC
- $110,000 - $130,000 a year
- Full-time
- Hybrid work
- Computer Science
- Mid-level
- Bachelor's degree
- Health insurance
- Dental insurance
Reverse Engineer
22nd Century Technologies, Inc. —Springfield, VA
- Full-time
- Background check
- System design
- Research
Quick Apply
3d
DevOps Engineer, Senior (Linux)
Freddie Mac —McLean, VA
- $130,000 - $196,000 a year
- Full-time
- 5 years
- Fair chance
- Senior level
Senior Developer
Leidos —Chantilly, VA
- $107,900 - $195,050 a year
- Full-time
- Bachelor of Science
- 8 years
- Bachelor's degree
Senior Software Engineer
General Dynamics Information Technology —Falls Church, VA
- $111,155 - $150,385 a year
- System design
- 3 years
- Java
- Paid time off
- 401(k) matching
Staff Software Engineer - AI Trainer
DataAnnotation —Virginia
- $50 - $100 an hour
- Contract
- Remote
- Mid-level
- In-person
- Flexible schedule
DevOps Engineer
Leidos —Bethesda, MD
- $107,900 - $195,050 a year
- Full-time
- Computer science
- 6 years
- Computer Science
- Flexible schedule
DevOps Software Engineer - TS/SCI Cleared
Leidos —Bethesda, MD
- $107,900 - $195,050 a year
- Full-time
- Computer science
- Engineering
- 8 years
- Flexible schedule
Sr. Software Engineer TS/SCI Polygraph
Leidos —Alexandria, VA
- $131,300 - $237,350 a year
- Full-time
- Bachelor of Science
- Writing skills
- Windows

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java software engineer/developer jobs near herndon, va

Modeling, Analysis & Simulation (MA&S) Engineer

Peraton -
Herndon, VA

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Job Details

$135,000 - $216,000 a year

Benefits

Health savings account
Paid holidays
Disability insurance
Health insurance
Dental insurance
401(k)
Paid time off
Parental leave
Employee assistance program
Vision insurance
Life insurance

Qualifications

AI models
Monte Carlo methods
Systems integration
Predictive modeling analysis
Requirements design
Monte Carlo simulation
Security architecture risk management
Integration Architecture Design (Architecture design skills)
AI platforms (beyond public GPTs)
DoD experience
Computational modeling
Process simulation software
Information security compliance
Machine intelligence
Managing engineering teams
Integration architecture
Systems engineering
Regulatory Frameworks (Architecture security)
Leading team collaboration initiatives
Software development
System requirements definition
Cloud compliance
Analysis (software development lifecycle)
Cybersecurity
RMF
Machine learning frameworks
Risk simulation
Cross-functional communication

Full Job Description

About Peraton

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees solve the most daunting challenges that our customers face. Visit peraton.com to learn how we’re keeping people around the world safe and secure.

About The Role

Peraton is seeking an experienced Modeling, Analysis & Simulation (MA&S) Engineer to lead the development and application of models, simulations, and analytical frameworks that support the engineering, integration, and validation of complex BNATCS systems. In Peraton's role as a systems integrator, this position is essential to understanding how independently developed components will behave when brought together, long before physical integration occurs.

This role sits at the intersection of model-based systems engineering (MBSE), simulation science, and artificial intelligence — applying AI-augmented modeling techniques to accelerate system design, predict emergent behaviors, automate trade-off analyses, and enhance the fidelity and efficiency of simulation environments. You will define the MA&S strategy, build and govern the modeling ecosystem, and guide engineering teams in using models as the authoritative source of truth for design decisions, integration verification, and performance analysis across the enterprise.

This role is based in Herndon, VA.

Key Responsibilities

Define and maintain the enterprise MA&S strategy and architecture, establishing how models, simulations, and analytical tools are developed, governed, and reused across the integrated program
Lead model-based systems engineering (MBSE) initiatives using industry-standard tools and languages (Cameo, Sparx EA, MATLAB/Simulink, SysML, UAF) to create authoritative system models that drive requirements, design, integration, and verification activities
Develop and maintain system-of-systems models that represent the integrated behavior of multi-vendor components, capturing interfaces, dependencies, data flows, and emergent properties across technical and organizational boundaries
Establish model governance standards — configuration management, version control, validation criteria, and model pedigree tracking — to ensure model trustworthiness across teams and subcontractors
Apply AI and machine learning techniques to enhance MBSE workflows — including automated model generation from requirements, natural language processing (NLP) for requirements analysis, and AI-assisted consistency and completeness checking across large model repositories
Develop and deploy AI-driven surrogate models and digital twins that approximate high-fidelity simulations at reduced computational cost, enabling rapid design space exploration and real-time decision support
Leverage generative AI and large language models (LLMs) to accelerate model documentation, translate between modeling formalisms, and assist engineers in querying and navigating complex system models
Implement machine learning-based predictive analytics to identify integration risks, performance bottlenecks, and failure modes from historical simulation data and system telemetry
Evaluate and integrate emerging AI-for-engineering tools into the MA&S toolchain, assessing their maturity, trustworthiness, and applicability to safety-critical and mission-critical modeling contexts
Design and operate simulation environments — constructive, virtual, and hardware-in-the-loop — that replicate integrated system behavior for performance analysis, stress testing, and scenario exploration
Conduct trade-off analyses, sensitivity studies, and Monte Carlo simulations to quantify risk, evaluate design alternatives, and support engineering decision-making
Develop integration simulation frameworks that allow multi-vendor components to be tested in a virtual integration environment prior to physical integration, reducing risk and accelerating delivery
Perform performance modeling and capacity analysis for real-time, low-latency, and high-availability systems, ensuring that integrated solutions meet stringent operational requirements
Support verification and validation (V&V) activities by providing model-based evidence, simulation results, and analytical artifacts that demonstrate system compliance with requirements
Collaborate with enterprise architects, software architects, cybersecurity teams, and data architects to ensure models and simulations are aligned with broader architectural governance and design decisions
Conduct technical reviews of vendor and subcontractor modeling deliverables to ensure alignment with enterprise MBSE standards, interface specifications, and model quality requirements
Define and manage model exchange standards and interfaces across the integrated program, enabling interoperability between modeling tools used by different teams and subcontractors
Translate complex modeling results, simulation outcomes, and AI-driven insights into clear, actionable guidance for program leadership, government stakeholders, and non-technical audiences
Mentor and guide systems engineers, simulation developers, and data scientists in MBSE practices, simulation techniques, and the responsible application of AI in engineering workflows

#BNATC

#LSI2

Qualifications

Required Qualifications

Public Trust Clearance - Ability to Obtain and Maintain
15+ years of experience in modeling and simulation, systems engineering, or MBSE within large-scale programs
Bachelor's degree in Systems Engineering, Computer Science, Aerospace Engineering, Mathematics, Physics, or a related field (or 4 additional years of relevant experience in lieu of degree)
Demonstrated experience serving as an MA&S lead within a systems integrator environment, developing models and simulations that validate multi-vendor, multi-technology integrated solutions
Deep expertise in model-based systems engineering (MBSE) using SysML, UAF, or equivalent modeling languages and tools (Cameo, Sparx EA, MATLAB/Simulink, Rhapsody)
Proven experience applying AI and machine learning techniques to engineering modeling workflows — surrogate modeling, automated analysis, NLP-based requirements processing, or predictive analytics
Strong command of simulation methodologies — discrete event simulation, agent-based modeling, Monte Carlo analysis, hardware-in-the-loop, and constructive simulation environments
Hands-on experience with simulation frameworks and tools (AnyLogic, Arena, AFSIM, STK, custom simulation engines, or equivalent)
Proficiency in Python, MATLAB, Java, or other languages commonly used in modeling, simulation, and AI/ML development
Solid understanding of systems engineering lifecycle processes — requirements analysis, architecture design, integration, verification, and validation — and how models support each phase
Working knowledge of federal frameworks (NIST, FedRAMP, RMF) as they relate to the security and accreditation of modeling and simulation environments
Experience supporting federal or DoD programs with complex integration and system-of-systems challenges
Background in mission-critical or safety-critical systems where model accuracy and simulation fidelity directly impact operational and safety outcomes
Proven ability to lead cross-functional teams and drive alignment across systems engineering, software development, test, and operations disciplines

Preferred Qualifications

Experience with modeling and simulation for aviation, air traffic management, or national airspace systems
Background in digital twin development — creating persistent, data-connected virtual representations of physical systems for ongoing monitoring and analysis
Familiarity with real-time simulation, low-latency modeling, and edge computing for simulation deployment
Experience with cloud-based simulation environments (AWS, Azure) including high-performance computing (HPC), containerized simulation workloads, and scalable compute for large-scale Monte Carlo or parametric studies
Knowledge of data architecture and data integration as it relates to feeding operational data into models and simulations for calibration and validation
ITIL certification and experience aligning MA&S activities with ITSM and configuration management processes
Experience with AIOps, observability platforms, and using operational telemetry to continuously refine and validate models
Familiarity with AI governance, model explainability, and trustworthy AI frameworks as applied to engineering decision support
Relevant certifications such as INCOSE CSEP/ESEP, AWS Solutions Architect, or certifications in AI/ML (e.g., AWS Machine Learning Specialty, Google Professional ML Engineer)

#BNATCS #LSI

Details

Target Salary Range: $135,000 - $216,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

Benefits Statement: Peraton offers eligible employees a variety of benefits including medical, dental, vision, life, health savings account, short/long term disability, EAP, parental leave, 401(k), paid time off (PTO) for vacation, and company paid holidays. A full listing of available benefits can be viewed at https://www.careers.peraton.com/benefits.

Application Statements: The application period for the job is estimated to be 30 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates. By applying to this job, you are expressing interest in the role and the Company. During the review of your application, you may be required to participate in an on-camera interview, as well as participate in a process to verify your identity.

EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.

Apply Now

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java software engineer/developer jobs in herndon, va

Modeling, Analysis & Simulation (MA&S) Engineer

Senior Frontend Software Engineer - Clearance Required

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