Software Engineer II

Lyntris; San Diego (CA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Paid Time Off

Medical, Dental & Vision Insurance

401k Matching

Job summary

Lyntris is seeking a Software Engineer II to design, develop, deploy, and maintain systems supporting Command & Control (C2) operations for the Department of Defense. The role emphasizes independent work and collaboration with cross-functional teams to deliver mission-critical software.

Ideal candidates will have experience with backend Java/C++ or frontend JavaScript frameworks, containerized microservices, and secure operational networks, with a clearance or ability to obtain one. U.S.

Qualifications

• BS in Computer Science or related STEM field.
• 4+ years of relevant work experience or 8+ years with equivalent accomplishments.
• Experience backend with Java/C++ or frontend with JavaScript frameworks."

Responsibilities

• Design, develop, deploy, and maintain DoD systems and C2 operations software.
• Build containerized web applications and services for DoD in a controlled environment.
• Collaborate with cross-functional teams to deliver high-quality, mission-critical software.

Skills

Java

C++

JavaScript (React)

REST APIs

Unit testing

Security clearance

Education

BS in Computer Science

Tools

Kubernetes

Docker

React

PostgreSQL

Job description

company

Lyntris is a defense technology company that connects sensing to action across the connected battlespace. Lyntris brings together the talents of Accelint and Vitesse teams under one mission, with each contributing deep expertise within their domain. Combining differentiated hardware, software and mission expertise, Lyntris helps customers sense threats, make sense of complex conditions and act with greater speed, precision and confidence in contested environments.

Lyntris supports U.S. and allied defense organizations across every branch — including Navy, Army, Air Force, Space Force and allied partners — spanning strategic, operational and tactical missions and every domain: Space, Air, Land, Sea and Cyber. With more than 200 active defense programs, Lyntris works at every level of the mission, from national command authority to the tactical edge.

Solutions are designed by operators who understand the mission, engineered for the conditions that degrade or defeat standard systems, and built on an open, modular architecture that integrates into existing programs without requiring them to start over. Lyntris moves faster than the traditional defense cycle — with integrated design, build and test capabilities in-house — and delivers systems that sustain and endure long after initial fielding.

role

We are seeking a Software Engineer II to support the design, development, deployment, and maintenance of systems in support of Command & Control (C2) Operations. The ideal candidate will have experience with military C4I systems and secure operational networks. They must have the ability to work independently and have a demonstrated ability to collaborate with a cross-functional team. This role requires the capability to support complex networking efforts independently, demonstrating initiative and resourcefulness in addressing challenging technical issues.

Job Description:

• Research, design, and implement innovative technologies for automating, integrating, and delivering containerized web applications and services for the Department of Defense (DoD) in an orchestrated and controlled manner.
• Day-to-day efforts include working with highly talented professionals and subject matter experts to design, implement, and sustain mission-critical software systems that provide US Navy warfighters with the tools and resources for successfully planning and executing missions.
• The ideal candidate would, along with regular tasking, research and proactively propose solutions that meet the demands of the warfighter. There are always new problems to solve and new, innovative ways to solve them!

Required Qualifications:

• Currently holds an active U.S. national security clearance OR can obtain one (process is facilitated through the company upon hire; to learn more about the security clearance process, please access this link (https://www.cdse.edu/Portals/124/Documents/jobaids/personnel/Receive_and_Maint_Sct_Clnc.pdf) ).
• BS in Computer Science, Engineering, or other STEM field and four (4) years relevant work experience, or 8 years relevant experience with:
• Writing backend web applications with one or more object-oriented programming languages (e.g. Java, C++) OR experience writing rich frontend applications with one or more JavaScript UI frameworks (e.g. React, Vue)
• o Type-sensitive data models
• o Unit testing frameworks
• o Standards-based REST API design, implementation, or consumption
• o Software build dependency management principles and tools
• Enthusiasm and passion for delivering high-quality code

Desired Qualifications:

• Experience developing and testing containerized backend microservices developed using the Java Quarkus Runtime
• Experience developing React applications that use Redux for global state management
• Experience implementing or consuming relational databases (e.g. Postgres, MySQL)
• Experience with implementing/integrating applications to use OAuth 2.0 / OpenID Connect (OIDC)
• Experience with containerization technologies such as Kubernetes, Docker, or Helm.
• Experience designing, implementing, and consuming asynchronous APIs (e.g. WebSockets, SSEs, Apache Kafka)
• Experience with AI-assisted Agentic software development
• U.S Navy Command and Control (C2) domain knowledge
• Ability to multi-task, be proactive, and thrive in a dynamic environment

Clearance Requirements

Some positions will require access to U.S. National Security information. Positions that require this access will be required to receive and maintain a U.S. government personnel security clearance (PCL). In order to qualify for this position, the candidate must be a US Citizen and either currently possess this National Security eligibility or be able to complete the investigation application process with a favorable determination and maintain that eligibility throughout their employment. To learn more about the security clearance process please access this link .

EEOC & Know Your Rights

Lyntris companies are Equal Opportunity Employers. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, status as a protected veteran or any other status protected by applicable federal, state, and local law. We ensure that all employment decisions, including hiring, promotion, compensation, and other terms and conditions of employment, are based on merit, qualifications, and business needs. For more information about your rights, please review the "Know Your Rights" poster from the Equal Employment Opportunity Commission (EEOC). Know your Rights: English Spanish

Pay Scales & Benefits

The listed pay scale reflects the broad, minimum to maximum, pay scale for this position for the location for which it has been posted and is not a guarantee of compensation or salary. Other compensation considerations may include, but are not limited to, job responsibilities, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, or other applicable factors.

Benefits include…

• Paid Time Off
• Paid Company Holidays
• Medical, Dental & Vision Insurance
• Optional HSA and FSA
• Base and Voluntary Life Insurance
• Short Term & Long-Term Disability Insurance
• 401k Matching
• Employee Assistance Program