Explore 3 java fullstack developer jobs from 3 hiring companies in Smithsburg, MD, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Java Fullstack Developer

Hagerstown

Waynesboro

Robinwood

Halfway

Frederick

Cavetown

Chambersburg

Ballenger Creek

Thurmont

Fountainhead-Orchard Hills

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Germantown

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Java Fullstack Developer Jobs

ELEVI Associates

GliaCell Technologies

Hybrid

Onsite

QXO, Inc. (NYSE: QXO) is the largest publicly traded distributor of roofing, waterproofing, and related products, and the second largest publicly traded distributor of lumber and building materials in North America. QXO is the fastest growing company in the $800 billion building products distribution industry and plans to become the tech-enabled leader by delivering best-in-class customer satisfaction and outsized returns for its shareholders. The company is targeting $50 billion in annual revenues within the next decade through accretive acquisitions and organic growth. What you'll do: As a Senior Software Engineer on the QXO eCommerce team, you will help design, build, and maintain the core services and user experiences that power our commerce platform. You’ll work closely with product, design, and other engineering teams to deliver secure, reliable, and scalable solutions that serve millions of users across web and mobile. This role is ideal for engineers who are passionate about building high-quality software, eager to learn, and excited to make a meaningful impact in a fast-paced environment. Key Responsibilities<ul><li>Design, develop, and maintain eCommerce services and user interfaces.</li><li>Implement scalable, low-latency systems that meet performance and security goals.</li><li>Build intuitive and performant front-end experiences.</li><li>Collaborate with cross-functional teams to deliver end-to-end product features.</li><li>Write clean, efficient, and testable code.</li><li>Participate in design and code reviews.</li><li>Support the continuous improvement of system reliability and operational excellence.</li><li>Contribute to shared libraries, platform components, and design systems.</li></ul> What you'll bring: Qualifications & Skills<ul><li>2–5 years of professional software engineering experience.</li><li>Proficiency in one or more object-oriented programming languages (e.g., Java, Kotlin, Go).</li><li>Experience with modern front-end technologies and frameworks such as React, Next.js, or TypeScript.</li><li>Solid understanding of data structures, algorithms, and software design principles.</li><li>Experience developing and maintaining production systems in a cloud environment (e.g., AWS, GCP).</li><li>Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience.</li><li>Strong collaboration and communication skills.</li></ul> Preferred Qualifications:<ul><li>Experience building commerce, checkout, or personalization systems.</li><li>Familiarity with responsive, accessible, and high-performance UI development.</li><li>Exposure to AI/ML systems or data-driven services.</li><li>Experience with experimentation frameworks, recommendation systems, or search technologies.</li><li>Knowledge of CI/CD, observability, and performance tuning tools.</li></ul> What you'll earn <ul style="direction: ltr; unicode-bidi: embed; margin-top: 0in; margin-bottom: 0in;" type="disc"><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Base pay range: $138,000 - $235,000</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Annual performance bonus</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Long term incentive (equity/stock)</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">401(k) with employer match</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Medical, dental, and vision insurance</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">PTO, company holidays, and parental leave</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Paid Time Off/Paid Sick Leave: Applicants can expect to accrue 15 days of paid time off during their first year (4.62 hours for every 80 hours worked) and increased accruals after five years of service.</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Paid training and certifications</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Legal assistance and identity protection</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Pet insurance</li><li style="margin-top: 0; margin-bottom: 0; vertical-align: middle;">Employee assistance program (EAP)</li></ul>  QXO is an Equal Opportunity Employer. We value diversity and do not discriminate on the basis of race, color, religion, sex, national origin, age, disability, or any other protected status.  To comply with Pay Transparency laws, employers must disclose an annual salary range. Actual offers depend on factors such as location, experience, skills, and market data. This position may also offer variable compensation. Please contact <a href="mailto:careers@QXO.com" target="_blank" rel="noopener">careers@QXO.com</a> if you have any questions related to this job posting.

Senior Software Engineer, Fullstack

Senior Software Engineer

2-5 years software engineering; OO languages; React/Next/TypeScript; cloud (AWS/GCP); CS/engineering degree; strong collaboration.

In Order to Join the ELEVI Team you will need:
<ul>
<li data-leveltext="" data-font="Symbol" data-listid="8" data-aria-posinset="2" data-aria-level="1">You must have a current or active security clearance with a poly. &nbsp;</li>
<li data-leveltext="" data-font="Symbol" data-listid="8" data-aria-posinset="2" data-aria-level="1">Possess Seven (7) + years of experience as a software engineer in programs and contracts of similar scope, type, and complexity is required or 4 more years experience</li>
<li data-leveltext="" data-font="Symbol" data-listid="8" data-aria-posinset="4" data-aria-level="1">Bachelor’s degree in Computer Science or related discipline from an accredited college or university is required OR 4 years of additional Software Engineer experience on projects with similar software processes may be substituted for a bachelor’s degree.</li>
<li data-leveltext="" data-font="Symbol" data-listid="8" data-aria-posinset="4" data-aria-level="1">Required Skills/Experience: • Java and JavaScript • Python • Agile software environment • Experience utilizing corporate authentication services into a secure full stack solution • Experience delivering full stack solutions with large data sets • Experience with developing in a micro-services framework • Familiar with design and implementation of local caching services • Experience with ETL (Extract, Transform, Load) • Docker &amp; Docker Compose • Kubernetes • Jenkins • Github and Gitlab • Jira and Confluence</li>
<li data-leveltext="" data-font="Symbol" data-listid="8" data-aria-posinset="4" data-aria-level="1">Desired skills/Experience: • Knowledge of commercial cloud services, preferably AWS • PostgreSQL / Nosql • Go, Rust, and/or C++ • Lib development • Vue • MinIO, Clickhouse, Graphite </li>
</ul>
Some of the day-to-day activities:&nbsp;&nbsp;
<ul>
<li>The individual will work with a team of dynamic and innovative engineers to develop new capabilities supporting the front end processing of data for a mission critical tool.</li>
<li>The individual will also support the modernization of the front end processing services.</li>
<li>Support the modernization of malware analysis and develop techniques for metadata storage for knowledge management to support the defense of national security systems.</li>
<li>The engineer will be a part of a team who explores new technologies and prototypes new mission tools and analytics.</li>
<li>The team also develops new algorithms and innovative techniques to address mission related problems.
Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at ELEVI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families.&nbsp;At ELEVI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Learn more&nbsp;<a href="https://elevi.net/careers.html#benefits">here</a>.
The proposed salary range for this position is:
$94,400 - $144,300
</li>
</ul>
We’re an equal opportunity employer (EOE) that empowers our people. It is the policy of ELEVI to provide equal employment opportunities to all employees and employment applicants—without regard to unlawful considerations of race, religion, color, national origin, sex, sexual orientation, gender identity or expression, age, sensory, physical or mental disability, marital status, veteran or military status, genetic information, or any other classification protected by applicable local, state, or federal laws. We fearlessly drive change, because without diversity of thought and a commitment to equality for all, there is no moving forward. Reasonable accommodations are available for qualified individuals with disabilities, upon request. This policy applies to all aspects of employment, including, but not limited to, hiring, job assignment, compensation, promotion, benefits, training, discipline, and termination.

Jr Level Software Developer

Software Developer

Requires poly clearance; 7+ years software engineering or 4+ years with degree; BS CS or related; strong Java/JavaScript/Python; Agile; microservices; CI/CD; cloud knowledge.

***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 Senior Software Engineer&#160;who is ready for a&#160;new challenge&#160;that will&#160;launch your career&#160;to the next level?<ul><li>Tired of being treated like a company drone?</li><li>Tired of promised adventures during the hiring phase, then dropped off on a remote contract and never seen or heard from the mothership again?</li><li>Our engineers were certainly tired of the same.&#160;&#160;</li></ul>At GliaCell our slogan is &#8220;We make It happen&#8221;.<ul><li>We will immerse you in the latest technologies.</li><li>We will develop and support your own&#160;personalized training program to continue your individual growth.&#160;</li><li>We will provide you with&#160;work that matters&#160;with our mission focused customers, and surround you with&#160;a family of brilliant engineers.&#160; </li></ul>Culture isn&#8217;t something you need to talk about&#8230;if it just exists.&#160;If this&#160;sounds interesting to you, then we&#8217;d like to&#160;have a discussion regarding your next adventure!&#160;If you want to be a drone, this isn&#8217;t the place for you.We Make It Happen!GliaCell Technologies focuses on Software &amp; 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&#8217;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:<ul><li>Long term job security</li><li>Competitive salaries &amp; bonus opportunities</li><li>Challenging work you are passionate about</li><li>Ability to work with some amazingly talented people</li></ul>Job Description:GliaCell is seeking a Senior Software Engineer&#160;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.Key Requirements:To be considered for this position you must have the following:<ul><li>Possess an active or rein-statable TS/SCI with Polygraph security clearance.&#160;</li><li>U.S. Citizenship.</li><li>14+ years Software Engineering experience and a BS degree in Computer Science or related.</li><li>Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor&#8217;s degree.</li><li>Works well independently as well as on a team.&#160;</li><li>Strong communication skills.&#160;</li></ul>Key Skills:<ul><li>Experience with Full-stack Java, Angular and Python</li></ul>Location: Hanover, Maryland (Partial Telework TBD) Note: Telework granted for this position does not become available until after the individual has been in the position for a period of time, has acclimated to tasking/duties, and has meaningful work that can be done remotely.&#160; Telework can also be removed at any time.Salary Range:&#160;The salary range for this full-time position is $170,000 to $260,000. 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:<ul><li>CareFirst Medical Coverage for Employee and Dependents&#160;</li><li>Guardian Dental and&#160;Vision Coverage for Employee and Dependents&#160;</li><li>Up to 25 Days&#160;of Paid Time Off</li><li>Up to 40 hours of PTO Carryover</li><li>11 Federal Government Holidays</li><li>Work From Home Opportunities</li><li>401K Company Contribution, Fully Vested Day 1</li><li>Discretionary, Certification, and Sign-On Bonus Potential&#160;</li><li>Employee Referral Bonus Program&#160;</li><li>Annual Professional Development&#160;</li><li>100% Premium Covered for Life &amp; Disability Insurances</li><li>Additional Voluntary Life Insurance Coverage Available&#160;</li><li>Employee Assistance Program</li><li>Travel Protection Program</li><li>Financial Planning Assistance&#160;</li><li>Bereavement and Jury Duty Leave</li><li>Monthly Team and Family Events</li><li>Technology Budget</li><li>Global Entry</li><li>Annual Swag Budget</li></ul>Learn more about GliaCell Technologies:&#160;<a href="https://gliacelltechnologies.applytojob.com/apply/">https://gliacelltechnologies.applytojob.com/apply/</a>To apply for this position, respond to this job posting and attach an updated resume for us to review.&#160;GliaCell Technologies, LLC is an Equal Opportunity/Affirmative Action Employer.&#160;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.

Senior Software Engineer (Partial Telework)

Active TS/SCI with Polygraph clearance; U.S. Citizenship; 14+ years software engineering; BS in Computer Science or related, or 4 additional years of SWE experience in lieu of degree; strong communication and independence.

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