Full-Time
Java Developer
Posted on 6/16/2025
Leidos
10,001+ employees
Defense, intelligence, and civil IT solutions
Compensation Overview
$85.2k - $153.9k/yr
Company Historically Provides H1B Sponsorship
Reston, VA, USA
In Person
US Top Secret Clearance Required
 Software Engineering (1) |
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- Proficient experience with common Agile practices, service-orientated environments, and development practices
- Proficient experience with Java, JavaScript, and the software development lifecycle, with experience delivering within DevOps toolsets/practices
- Direct experience utilizing software testing performance tools, such as Junit or Katalon and scripting languages, such as Python, and Bash while working in an Agile development environment
- Proficient experience developing in Commercial Cloud Platforms (ex, AWS, Google Cloud, Azure) and leveraging cloud data services (ex: S3, RDS, EFS)
- Proficient experience using version control and issue/problem tracking systems
- Bachelor’s degree with 4 or more years of prior relevant experience or Master’s with 2 or more years of relevant experience. Additional years of experience may be substituted in lieu of a degree.
- To be considered must have an active TS/SCI with polygraph security clearance
- Participate in software programming initiatives to support innovation and enhancement, using Java, JavaScript, Python, SpringBoot, Hibernate
- Developing and directing software system validation and testing methods using Junit and Katalon
- Develop and integrate custom developed software solutions to leverage automated deployment technologies leveraging an Atlassian tool suite like JIRA and Confluence to track activities
- Develop, prototype and deploy solutions within Commercial Cloud Solutions leveraging Infrastructure platform services creating innovative solutions to meet the technical needs of customers.
- Analyze (though proof of concept, performance, and end-to-end testing) and effectively coordinate Infrastructure needs driven by developed software to meet customer mission needs
- Support the Agile software development lifecycle following Program SAFe practices while coordinating closely with team members, Product Owners and Scrum Masters to ensure User Story alignment and implementation to customer use cases
- Document and Perform systems software development, including deployment of build artifacts across different environments leveraging GitFlow constructs and using industry leading DevOps tools like GitHub, Jenkins, and Unix bash scripting
- Experience with Python, SpringBoot, Hibernate, Angular, Hive, Pig, or C++
- Experience in AWS Data management services (Elastic Map Reduce, Lambda, Kinesis)
- Experience with SAFe development practices
Leidos is a large technology and engineering company that serves defense, intelligence, healthcare, and civil government customers. It provides scientific, engineering, and IT solutions to help ensure safety, health, and efficiency, from upgrading air traffic control to strengthening cybersecurity for critical missions. The company delivers integrated systems and services—software, research, cyber defense, and digital modernization—through programs that span government and commercial clients. Leidos stands out through its long history as SAIC’s split-off and rapid growth via major acquisitions, creating a broad, mission-focused portfolio across defense, space, intelligence, and civilian sectors. Its overarching goal is to help customers solve hard problems with advanced technology, enabling safer operations and better public services.
Company Size
10,001+
Company Stage
IPO
Headquarters
Reston, Virginia
Founded
1969
Your Connections
People at Leidos who can refer or advise you
Simplify's Take
What believers are saying
- JMT shows demand for faster, cloud-based defense operations software.
- State Department Evolve awards expand modernization work across global IT.
- Veterans Affairs hiring signals deeper growth in health modernization.
What critics are saying
- Heavy debt limits acquisitions and margin defense during contract slowdowns.
- Large federal contracts expose Leidos to protests and recompete losses.
- Security incidents can damage clearance trust and trigger immediate recompetition.
What makes Leidos unique
- Leidos combines defense, intelligence, health, and civil government expertise.
- NorthStar 2030 emphasizes digital modernization, mission software, and managed health.
- The company blends commercial modules with federal systems integration.
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Benefits
Medical, dental, & vision insurance
Health Savings account
Income protection
PTO
Paid parental leave
Jury duty pay
Bereavement leave
401(k) Retirement Plan
Employee Stock Purchase Plan
Family Benefits
Growth & Insights and Company News
6 month growth
↓ -3%1 year growth
↓ -3%2 year growth
↓ -3%First successful end-to-end over-the-air Misbehavior Detection and automated V2X security enforcement. June 15, 2026 At the OmniAir Maryland Plugfest on Wednesday, June 3, with a focus on Cybersecurity, OmniTrust, and Leidos successfully demonstrated the first end-to-end over-the-air (OTA) misbehavior detection workflow, triggering a complete V2X security response pipeline after eight years of technology introduction and evolution. Rather than stopping at message generation and validation, the demonstration exercised the full operational chain, showing how misbehavior can be detected, reported, processed, and enforced across a live, interoperable environment. The demonstrated workflow aligns with established V2X security standards: message signing and verification follow IEEE 1609.2; certificate provisioning and revocation are managed in accordance with IEEE 1609.2.1; and misbehavior reporting and processing are consistent with SAE J3287. Qualcomm provided the V2X platform and misbehavior detection capabilities, OmniTrust supplied the Security Credential Management System (SCMS) services, and Leidos integrated the end-to-end workflow and validation processes. During the verification demonstration, a misbehaving Basic Safety Message (BSM) broadcast via Cellular-V2X direct Radio is detected by the Misbehavior Detection and Reporting software. This triggers a sequence of automated security actions. A misbehavior report was generated and securely uploaded to a Security Credential Management System (SCMS) provider, where both the report and the associated BSM signature were validated. The SCMS provider then issued an updated Certificate Revocation List (CRL), which was distributed across the network. On-board units (OBUs) and roadside units (RSUs), including the originating device, successfully updated their CRLs, preventing the misbehaving device from signing or transmitting additional messages. The most significant aspect of the demonstration was that every participating device independently received, processed, and enforced the updated CRL without interoperability issues. The exercise also included two distinct V2X modules built on different hardware platforms, Intelligent Transportation System (ITS) protocol stacks, and security implementations, validating cross-vendor interoperability under realistic operating conditions. Building on this success, OmniTrust and Leidos utilized OmniAir's test cases developed specifically for SAE J3287 standards, which verified interoperability for misbehavior detection and reporting (MBD/MBR) with multiple independent SCMS providers, including SAESOL Tech and Autocrypt. These achievements directly support the broader objectives of the USDOT Misbehavior Test Tool, which is designed to verify V2X message integrity, identify anomalous behavior, and confirm that communications originate from trusted, properly credentialed sources. By enabling end-to-end misbehavior detection and response, the tool strengthens the integrity of safety-critical data and reinforces confidence in connected vehicle communications. More broadly, this milestone highlights the value of industry collaboration in advancing interoperable V2X security. Rather than validating isolated components, the Plugfest testing exercised a complete security workflow spanning detection, reporting, credential management, and enforcement across multiple vendors and implementations. The successful execution of this end-to-end process represents an important step toward scalable, secure, and resilient connected-vehicle deployments, demonstrating that connected-vehicle systems can not only communicate effectively but also respond appropriately to security threats and misbehavior. With the methodology proven, misbehavior attributes can be expanded to encompass critical BSM elements, thereby providing trusted communications. About OmniAir Consortium OmniAir Consortium is the leading industry association promoting interoperability and certification for ITS, tolling, and connected vehicles. OmniAir's membership includes public agencies, private companies, research institutions, and independent test laboratories. Learn more at www.omniair.org.
Leidos to highlight innovative models for Air Traffic modernisation at Airspace World 2026. Tuesday, May 19, 2026 10:01 AM - Lisbon, Portugal. Leidos (NYSE:LDOS) will highlight new approaches to air traffic management (ATM) modernisation at Airspace World 2026, the world's largest ATM event organized by the Civil Air Navigation Services Organisation (CANSO). With a focus on improving efficiency, resilience and collaboration across the aviation industry, Leidos and its partners will be demonstrating innovative solutions designed to help air navigation service providers (ANSPs) modernize operations and manage increasingly complex airspace. At Airspace World 2026, Leidos and its partners will share how this shift is being applied in practice through the following sessions: * 26 May at 12:00 (GMT+1) From Critical Corridor to Competitive Advantage: How Kazakhstan is Turning Strategic Airspace into a Model for Modern ATM Kazaeronavigatsia Director General, Faat Bogdashkin, will join Leidos SkyLine Portfolio Manager Kenneth Folger to discuss Kazakhstan's national ATM transformation. With passenger traffic projected to reach 26 million by 2030 and rapid expansion of international routes, the ANSP is modernizing to enhance safety, scalability, and operational efficiency across a critical global air corridor. * 27 May at 13:30 (GMT+1) Advancing ATM Through ANSP and Industry Partner Co-Development Leidos Senior Director of ATM, Will Estrada, will explore how co-development enables ANSPs to accelerate modernization through closer collaboration with industry partners. This approach supports more agile delivery, reduces reliance on proprietary solutions, and helps build long-term internal capability. "Airspace World provides an important platform to share what's working in real-world operations," said Jim Preaskorn, vice president of Air Traffic at Leidos. "We look forward to showcasing how we're helping ANSPs modernize systems in a way that improves performance today while preparing for future demand." "Air traffic management is undergoing a period of significant transformation," said Simon Hocqueard, CANSO President & CEO. "Collaboration between ANSPs, airlines and industry partners is critical to delivering the future capabilities of air traffic management. Airspace World brings together global leaders to share expertise and show innovations that drive progress across the world's airspace." As a platinum sponsor of Airspace World 2026, Leidos will also showcase demonstrations of its SkyLine-X(TM) air traffic management system. Attendees are invited to attend these sessions and visit the Leidos at booth H1-D52 or visit leidos.com/airspace-world to learn more.
Leidos awarded US Department of War contract to build 3,000 Low-Cost Containerized Munitions (LCCM). May 16, 2026 America's warfighters will receive an initial 3,000 Leidos (NYSE: LDOS) Low-Cost Containerized Munitions (LCCM) through a framework agreement with the Department of War that advances President Donald J. Trump and Secretary of War Pete Hegseth's "Arsenal of Freedom" initiative. The new cruise missile is expected to significantly enhance the country's ground-launched combat capability, demonstrating Leidos' ability to rapidly scale defense production and deliver decisive capabilities to the U.S. military. Leidos will expand its workforce and enhance its facilities in Huntsville, Alabama, and McEwen, Tennessee, to produce the LCCM. Consistent with the DoW's desire to utilize commercial products, development of Leidos' LCCM is company-funded, leveraging the technologies in its AGM-190A Small Cruise Missile (SCM) program. "We're answering the Department of War's call to revolutionize the procurement of critical capabilities at scale, with a focus on speed to operational capability," said Leidos Chief Executive Officer Tom Bell. "This agreement reflects the department's appreciation of Leidos' defense tech prowess and their trust in our proven history in delivering advanced missile technologies." Leidos started LCCM work in December, reaching a conceptual design with the Pentagon that is capable of achieving all mission objectives. Full system design, development and test will result in production beginning in 2027. At approximately twice the size of the AGM-190A, the LCCM offers increased mission effectiveness and fuel capacity to maximize range. Building on the Leidos Small Cruise Missile's heritage, the LCCM leverages key design features including a modular airframe and a common Weapon Open Systems Architecture (WOSA) to enable rapid integration, upgrades and mission adaptability. The design also utilizes Leidos' established supply chain and scalable production approach. While initially ground-launched, LCCM's modular design could also support maritime platform integration and air-launched variants. Leidos' decision to fund development and expand its production capabilities reflects its commitment to advancing operational capabilities through its NorthStar 2030 strategy. Leidos is a proven leader in the design, development and integration of advanced missile systems, launchers and precision strike technologies for the U.S. military. In addition to the AGM-190A, Leidos is the prime contractor for the U.S. Army's Indirect Fire Protection Capability Increment 2 (IFPC 2) system and supports next-generation hypersonic strike capabilities through its work on the Common Hypersonic Glide Body. The company also delivers precision munitions integration and advanced guidance and sensor technologies that strengthen integrated air and missile defense architectures. Post Views: 61
Leidos Holdings raised $1.39 billion through senior notes maturing in 2029 and 2036 to fund its acquisition of KENE Parent, the owner of Entrust. The notes include a special mandatory redemption clause at 101% of principal if the transaction isn't completed by mid-August 2026. The Virginia-based defence and technology company also secured a $454.9 million contract to modernise the US Air Force's Cloud One platform, partnering with Amazon and Google to enhance security and automation. Founded in 1969, Leidos serves defence, intelligence, civil and health markets, offering solutions in cybersecurity, data analytics and systems engineering. The company maintains strategic flexibility to use the note proceeds for general corporate purposes if needed.
Leidos (NYSE: LDOS) doubles energy reach with $2.4B Entrust deal. Filing Impact Filing Sentiment Rhea-AI Filing summary. Leidos Holdings, Inc., through its subsidiary Leidos, Inc., has completed its acquisition of KENE Parent, Inc., known as ENTRUST Solutions Group, for $2,400,000,000 in cash under a previously announced Stock Purchase Agreement. The deal transfers all issued and outstanding Entrust shares to Leidos, with the price subject to customary cash, debt, expense and net working capital adjustments. ENTRUST adds more than 3,100 professionals focused on electric grid engineering and natural gas infrastructure and effectively doubles Leidos' presence in the energy infrastructure market. Leidos highlights that ENTRUST broadens its power delivery engineering capabilities, expands its base of utility customers, and supports the energy growth pillar of its NorthStar 2030 strategy. Leidos reported approximately $17.2 billion in annual revenue for the fiscal year ended January 2, 2026. Insights. Leidos closes a sizable, strategic $2.4B energy infrastructure acquisition. The company has finalized its all-cash $2,400,000,000 purchase of ENTRUST Solutions Group, acquiring all outstanding shares under a Stock Purchase Agreement. ENTRUST brings more than 3,100 specialists in electric grid and natural gas infrastructure, immediately expanding Leidos' capabilities and customer reach in utility markets. Management states the deal effectively doubles Leidos' presence in the energy infrastructure market and supports the energy growth pillar of its NorthStar 2030 strategy. With Leidos reporting about $17.2 billion in annual revenue for the year ended January 2, 2026, this is a meaningful bolt-on transaction, though financial accretion, synergies and integration progress are not quantified in this disclosure. 8-K event classification. 4 items: 1.01, 2.01, 7.01, 9.01 03/30/2026 - 06:09 AM Faq. What did Leidos (LDOS) acquire in this 8-K filing? Leidos, through its subsidiary, acquired all outstanding shares of KENE Parent, Inc., known as ENTRUST Solutions Group. ENTRUST provides engineering, consulting, design and data solutions for utilities and operators, strengthening Leidos' energy infrastructure and grid modernization capabilities across North America. How much did Leidos (LDOS) pay to acquire ENTRUST Solutions Group? Leidos paid approximately $2,400,000,000 in cash to acquire ENTRUST, with the price subject to customary adjustments for cash, debt, transaction expenses and net working capital. The consideration is all-cash and transfers all issued and outstanding shares of ENTRUST to Leidos' subsidiary. When did Leidos (LDOS) complete the ENTRUST acquisition? Leidos completed the ENTRUST acquisition on March 27, 2026, when its subsidiary closed the previously announced Stock Purchase Agreement. A related press release dated March 30, 2026, announced the closing and described how the deal fits within Leidos' long-term NorthStar 2030 energy strategy. How does the ENTRUST acquisition affect Leidos' energy infrastructure business? The acquisition effectively doubles Leidos' presence in the energy infrastructure market by adding more than 3,100 professionals with electric grid and natural gas expertise. It broadens power delivery engineering capabilities and expands Leidos' utility customer base, supporting its energy-focused growth pillar. How large is Leidos compared with the ENTRUST transaction value? Leidos reported approximately $17.2 billion in annual revenue for the fiscal year ended January 2, 2026. Against this backdrop, the roughly $2.4 billion all-cash ENTRUST acquisition represents a significant but not transformational investment in its energy infrastructure strategy. Filing exhibits & attachments. 4 documents Press releases.