Software Engineer I (Onsite)
$62.9k - $119.7kRTX
Date Posted: 2026-07-09 Country: United States of America Location: US-MD-FULTON-8170 ~ 8170 Maple Lawn Blvd ~ MAPLE LAWN, Ste 190, 200 & 300 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required after day 1 Solipsys, Managed by Collins Aerospace Collins Aerospace, an RTX company, is a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry. Collins Aerospace has the capabilities, comprehensive portfolio, and expertise to solve customers’ toughest challenges and to meet the demands of a rapidly evolving global market. Solipsys Corporation, located in Fulton, MD, is a wholly-owned subsidiary of Raytheon Technologies (RTX). We are currently seeking a Software Engineer with experience in Java to join our team who is talented, highly motivated, has a passion for finding innovative solutions to problems, and committed to quality. We value skills and experience, so don't hold back. Your qualifications could add tremendous value to our team. Our customers come from all different backgrounds, and so do our employees. If you're passionate about what you could accomplish here, we'd love to hear from you. This is an entry level Software Engineer 1 position. This role is onsite, in Fulton, Maryland. This role may be eligible for relocation. What You Will Do: You will develop innovative new features for a new real-time situational awareness Command & Control Systems (C2) using Java. You will design, architect and code critical capabilities in an active Agile environment. You will work in a highly collaborate team environment to design, architect and innovate software solutions. What You Will Learn: You will learn how to develop high quality software to support real-time situational awareness Command & Control Systems (C2) systems. You will learn how to support engineering process improvements, audits and peer reviews. You will learn how to work within a highly collaborative software team and interface with other engineering disciplines as needed to meet program contract milestones. You will learn how to update documentation related to test, verification, and design activities. Qualifications You Must Have: Bachelor’s degree in Science, Technology, Engineering, or Mathematics (STEM) obtained prior to start and less than 2 years prior relevant experience. The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Experience and/or knowledge in programming multithreaded systems. Experience in software development using Java or C++. **Experience may be obtained through on-the-job experience, research, coursework, or projects. Qualifications We Prefer: Ability to engage & build positive relationships with both customers as well as internal & external employees. Opportunities for travel to customer sites for demos, integration and support. Strong computer science fundamentals such as data structures, algorithms and information retrieval. Relevant work experience using SW Development tools (e.g. Maven, Apache Ant, Jenkins, etc). Relevant work experience with full life cycle development including exposure to software requirements, design, development, debug and test. What We Offer: Some of our competitive benefits package includes: Medical, dental, and vision insurance Three weeks of vacation for newly hired employees Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option Tuition reimbursement program Student Loan Repayment Program Life insurance and disability coverage Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection Birth, adoption, parental leave benefits Ovia Health, fertility, and family planning Adoption Assistance Autism Benefit Employee Assistance Plan, including up to 10 free counseling sessions Healthy You Incentives, wellness rewards program Doctor on Demand, virtual doctor visits Bright Horizons, child and elder care services Teladoc Medical Experts, second opinion program And more! Eligible for relocation Learn More & Apply Now! Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today. *Please ensure the role type (defined below) is appropriate for your needs before applying to this role. Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again. Apply now and be part of the team that’s redefining aerospace, every day. As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. The salary range for this role is 62,900 USD - 119,700 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance. This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window. RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. Privacy Policy and Terms: Click on this link to read the Policy and Terms RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.
$145.6k - $276.8k
..., 200 & 300 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration... ...the development of command and control software systems and operates in a dynamic,... ...this position, you will serve as a Systems Engineer with a focus on systems modeling and analysis...SuggestedTemporary workWork experience placementWork at officeRemote workRelocationFlexible hours$118.3k - $224.9k
..., 200 & 300 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration... ...the development of command and control software systems and operates in a dynamic,... ...programs. We are seeking a Principal Systems Engineer to work on-site in Fulton, MD. What...SuggestedTemporary workWork experience placementWork at officeRemote workRelocationFlexible hours$145.6k - $276.8k
...190, 200 & 300 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration... ...the development of command and control software systems and operates in a dynamic,... ...are seeking a Senior Principal Systems Engineer to work on-site in Fulton, MD. What You...SuggestedTemporary workWork experience placementWork at officeRemote workRelocationFlexible hours- ...Principal Software Engineer – Solipsys, a wholly owned subsidiary of Collins Aerospace (an RTX company), located in MAPLE LAWN, MD. This onsite position requires U.S. citizenship to obtain and maintain a DoD Secret clearance. Collins Aerospace is a global leader in advanced...SuggestedWork experience placement
$95.5k - $181.7k
...0 & 300 Position Details Position: Systems Engineer - Systems Modeling and Analysis Location: Fulton, MD Role Type: Onsite Security Clearance: U.S. citizen required,... ...environment to design, architect and innovate software solutions. Engage & build positive...SuggestedRelocation- ...WORK This senior role fosters collaboration with other senior engineers for the development of advanced data analytics solutions and... ...and opportunities. This Program is seeking a full stack software engineer to develop, maintain and enhance complex and diverse...
$3,000 per month
...In this role you will: • Analyze user requirements to derive software design and performance requirements • Design and code new... ...analyzing system performance standards, confer with users or system engineers; analyze systems flow, data usage and work processes; and...$207.39k - $280.58k
...Software Engineer Software Engineer Praxis Engineering creates exciting and novel mission solutions in the chaotic world of cyber related... ...Hours: 40 Travel Required: None Telecommuting Options: Onsite Work Location: USA MD Annapolis Junction Additional Work...Temporary workImmediate startRemote workWorldwideFlexible hours$77k - $163k
...intelligence, lifecycle mission enablement, and software modernization. Nightwing brings... ...markets. Job Summary The Software Engineer develops, maintains, and enhances complex... ...required. _ Role Type This position is an onsite role. Basic Qualifications:...$170k - $230k
...Software Engineer Transform technology into opportunity as a Software Engineer at GDIT. Shape what's next for mission-critical government... ...range. Scheduled Weekly Hours: 40 Travel Required: None Telecommuting Options: Onsite Work Location: USA MD Annapolis Junction...Remote work$150k - $170k
...Software Engineer 2 Hanover, Maryland T-Rex is looking for a talented Software Engineer 2 to work on a program in the Hanover, Maryland... ...Community. Responsibilities: This Position Is An Onsite Role The Software Engineer develops, maintains, and enhances...Contract workWork experience placementImmediate start$3,000 per month
...is hired, you‘ll receive a $3000 payment! This position may be eligible for a $25K sign on bonus for external hires! Cyber Software Engineer Stf - SIGNAL SWE WHAT WE‘RE DOING Lockheed Martin, Cyber & Intelligence invites you to step up to one of today’s most...Relocation package$185k - $215k
...security programs by building high-performing engineering teams and developing innovative enterprise... ...motivated, career, and customer-oriented Signals Software Engineer Level 2 to join our team in Columbia, MD . This is onsite position. Responsibilities Maintain, and...Hourly payContract workWork experience placement- ...MANTECH seeks a highly motivated and collaborative Software Engineer to join our team in Columbia , MD. In this role, you will develop, maintain, and enhance complex and diverse software systems based upon documented requirements. Work individually or as part of a...Work at office
- ...Integrated Product Teams (IPT), and vendors to deliver select EIT. MANTECH seeks a motivated, career and customer-oriented Software Engineer to join our team in Annapolis Junction, MD. Responsibilities include but are not limited to: Develops, maintains, and...Contract workWork at office
- ...MANTECH is seeking a highly motivated and collaborative Software Engineer to join our team in Laurel , MD. In this role, you will develop, maintain, and enhance complex and diverse software systems based upon documented requirements. Work individually or as part of...Work at office
- ...MANTECH seeks a skilled and mission-focused CNO Software Engineer to join our team in Hanover, MD or Aurora, CO. In this role, you will contribute to the development of advanced CNO capabilities that directly support national security. You’ll work in a collaborative...
- ...MANTECH seeks a motivated, career and customer-oriented Software Assurance Evaluation Engineer to join our team in Hanover, MD. The Software Assurance Evaluation Engineer will leverage their strong technical background and knowledge to support software assurance...Work at office
- ...MANTECH seeks a motivated, career and customer-oriented Software Assurance Evaluation Engineer to join our team in Hanover, MD. The Software Assurance Evaluation Engineer will leverage their strong technical background and knowledge to support software assurance...Work at office
$70k - $85k
...candidates will have over 5 years of relevant experience, strong customer service skills, and the ability to work collaboratively with team members. The position is fully onsite with a competitive salary range from $70,000 to $85,000. #J-18808-Ljbffr Grunley Construction- ...Software Engineer Level 3 As a Software Engineer Level 3 at CyberPoint, you will lead the design, development and evolution of complex software... ...where each employee can thrive. This position is 100% onsite in Maryland and requires an active TS/SCI+FSP Security Clearance...For contractorsLocal area
- ...MANTECH is seeking a motivated, career and customer-oriented Cloud Software Engineer to join our team in Annapolis Junction, MD. Responsibilities : Responsibilities include, but are not limited to the following: Develops, maintains, and enhances complex and diverse...Work at office
$8k
...Job Overview Active Top Secret (TS/SCI) clearance with polygraph is required. Visionist offers a Full Stack Software Engineer position on our largest PRIME contract. The role involves designing and developing software solutions across the full stack for intelligence community...Permanent employmentContract workTemporary workFlexible hours- Via Logic LLC is seeking an M365 Engineer to support the HHS enterprise by managing Microsoft 365 Government Community Cloud (GCC) services. The ideal candidate will have extensive experience with Azure AD, Microsoft Intune, and Microsoft Purview, alongside strong technical...
- ...one capability to perform functions instead of multiple processes for similar capabilities. Detail oriented and team driven Software Engineers will provide full lifecycle support, to include modernization, of applications and tools. We are seeking a highly motivated...
$125k - $215k
...Full-Stack Software Engineer As a Full-Stack Software Engineer, you'll support a large mission focused team of software, systems and security engineers in the development and deployment of visualization analysts tools to be used for the greater good. What You Bring...Summer holidayImmediate start- ...Full Stack Software Engineer LOCATION Annapolis Junction, MD 20701 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a highly skilled Full Stack Software Engineer to join our team...Temporary workFor contractorsImmediate startFlexible hours
- ...SCI with Polygraph security clearance is required.*** Senior Software Engineer / Reverse Engineer position on a U.S. Government contract.... ...manipulate Gitlab CI/CD automated builds. Location: Laurel, MD (onsite full time) Salary Range: The salary range for this full‑time...Full timeContract workWork from homeRelocation package
$170k - $230k
...SCI + Polygraph Public Trust/Other Required: None Job Family: Software Engineering Job Qualifications: Skills: JavaScript API, React.js,... ...Weekly Hours: 40 Travel Required: None Telecommuting Options: Onsite Work Location: USA MD Annapolis Junction Additional Work Locations...Full timeTemporary workImmediate startRemote workWorldwideFlexible hours$200k - $280k
...possess this level of clearance. Are you a Principal Full Stack Software Engineer who is ready for a new challenge that will launch your career... ...(DuckDB, Polars, Pandas, Spark). Location: Laurel, MD (onsite full time) Salary Range: The salary range for this full-...Full timeContract workRemote workWork from homeRelocation package
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Software Engineer I (Onsite). Be the first to apply!
- id software Fulton, MD
- senior c# .net software developer Fulton, MD
- software implementation project manager Fulton, MD
- remote software sales Fulton, MD
- software Fulton, MD
- japan software engineer
- goldman sachs software engineer
- senior robotics software engineer
- software sales engineer
- software developer manager


