Java Spring Principal Software Engineer Jobs (NOW HIRING)

***An active or rein-statable TS/SCI with Polygraph security clearance is REQUIRED. Please do not apply if you currently do not possess this level of clearance.***

Are you a Principal Software Engineerwho is ready for anew challengethat willlaunch your careerto the next level?

• Tired of being treated like a company drone?
• Tired of promised adventures during the hiring phase, then dropped off on a remote contract and never seen or heard from the mothership again?
• Our engineers were certainly tired of the same.

At GliaCell our slogan is “We make It happen”.

• We will immerse you in the latest technologies.
• We will develop and support your ownpersonalized training program to continue your individual growth.
• We will provide you withwork that matterswith our mission focused customers, and surround you witha family of brilliant engineers.

Culture isn’t something you need to talk about…if it just exists.

If thissounds interesting to you, then we’d like tohave a discussion regarding your next adventure!If you want to be a drone, this isn’t the place for you.

We Make It Happen!

GliaCell Technologies focuses on Software & System Engineering in Enterprise and Cyber Security solution spaces. We excel at delivering stable and reliable software solutions using Agile Software Development principles. These provide us the capability to deliver a quick turn-around using interactive applications and the integration of industry standard software stacks.

GliaCell’s Enterprise capabilities include Full-Stack Application Development, Big Data, Cloud Technologies, Analytics, Machine Learning, AI, and DevOps Containerization. We also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat.

We Offer:

• Long term job security
• Competitive salaries & bonus opportunities
• Challenging work you are passionate about
• Ability to work with some amazingly talented people

Job Description:

GliaCell is seeking a Principal Software Engineer on one of our subcontracts. This is a full-time position offering the opportunity to support a U.S. Government customer. The mission is to provide technical expertise that assists in sustaining critical mission-related software and systems to a large government contract.

• We are seeking a proactive, self-starting Software Engineer to join our team and help automate foundational infrastructure for our mission customer.
• The ideal candidate thrives in a mixed-stack environment, primarily utilizing Python and Java Spring Boot, and is comfortable leveraging modern AI development tools to accelerate their workflow.
• This is not a standard ticket-working role; it requires a deep problem-solver whose core responsibility will be identifying pain points and inefficiencies in our current processes and engineering automated mitigations.
• You will operate with a high degree of autonomy to drive continuous improvement and system reliability.

Responsibilities:

• Automate and provision foundational infrastructure to support mission-critical customer requirements.
• Proactively identify pain points, bottlenecks, and inefficiencies in existing development and deployment processes, and engineer effective solutions.
• Develop, maintain, and troubleshoot applications across a mixed-stack environment, functioning primarily in Python and Java (Spring Boot).
• Leverage AI-assisted development tools to enhance coding speed, debugging, and overall software delivery.
• Operate with a high degree of autonomy, moving beyond standard ticket resolution to drive strategic process improvements and system optimizations.

Key Requirements:

To be considered for this position you must have the following:

• Possess an active or rein-statable TS/SCI with Polygraph security clearance.(This position requires in-scope poly, within 7 years).
• U.S. Citizenship.
• 12+ years Software Engineering experience and a BS degree in Computer Science or related. Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor’s degree.
• Works well independently as well as on a team.
• Strong communication skills.

Key Skills:

• Production-grade software development experience in Python and/or Java (Spring Boot).
• Proven track record as a self-starter capable of independently identifying system inefficiencies and driving them to resolution.
• Experience integrating AI development tools into daily engineering workflows.
• Strong problem-solving skills with a focus on infrastructure automation and process optimization.
• Familiarity with version control systems, specifically Git.

Desired Skills:

• Experience designing and implementing automated deployment pipelines using GitLab CI/CD.
• Hands-on experience with service containerization and deploying containerized applications (e.g., Docker).
• Familiarity working within containerized environments or orchestration platforms (e.g., Kubernetes).
• Experience bridging multiple technical domains in a complex, mixed tech stack environment.

Location: Columbia, Maryland

Salary Range:The salary range for this full-time position is $200,000 to $280,000. Our salary ranges are determined by position, level, skills, professional experience, relevant education and certifications. The range displayed on each job posting reflects the minimum and maximum target salaries for this position across our projects. Within the range, your salary is determined by your individual benefits package selection. Your recruiter can share more about the specific salary range for your preferred position during the hiring process. SIGN-ON BONUS ELIGIBLE.

Benefits:

• CareFirst Medical Coverage for Employee and Dependents
• Guardian Dental andVision Coverage for Employee and Dependents
• Up to 25 Daysof Paid Time Off
• Up to 40 hours of PTO Carryover
• 11 Federal Government Holidays
• Work From Home Opportunities
• 401K Company Contribution, Fully Vested Day 1
• Discretionary, Certification, and Sign-On Bonus Potential
• Employee Referral Bonus Program
• Annual Professional Development
• 100% Premium Covered for Life & Disability Insurances
• Additional Voluntary Life Insurance Coverage Available
• Employee Assistance Program
• Travel Protection Program
• Financial Planning Assistance
• Bereavement and Jury Duty Leave
• Monthly Team and Family Events
• Technology Budget
• Global Entry
• Annual Swag Budget

Learn more about GliaCell Technologies: https://gliacelltechnologies.applytojob.com/apply/

GliaCell Technologies, LLC is an Equal Opportunity/Affirmative Action Employer.All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.