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Jr Developer Jobs in Frederick, MD (NOW HIRING)

Leidos

AI Software Developer

Gaithersburg, MD · On-site

Leidos is seeking an AI Software Developer to join the Air Traffic Business Area within the Homeland Sector , supporting the development of the Leidos Common Baseline . Common Baseline is a mission ...

Leidos

Software Developer

Gaithersburg, MD

$69K - $125K/yr

We are seeking a Software Developer who will be a member of a dynamic team Air Traffic Management program - SkyLine-X SkyLine-X provides an array of advanced air traffic management capabilities to ...

Contact Government Services, LLC

Java Developer

Rockville, MD · On-site

$52 - $67.25/hr

Java Developer Employment Type: Full-Time Department: Information Technology CGS is seeking a Java developer/programmer to join a team working on the enhancement of data utilization for a large ...

Leidos

Senior Software Developer

Gaithersburg, MD

$59 - $77.75/hr

In this role, you will work alongside government partners, engineers, and other industry teammates to translate operational and strategic requirements into scalable, production-ready solutions. You ...

Leidos

Senior Software Developer

Gaithersburg, MD · On-site

$59 - $77.75/hr

In this role, you will work alongside government partners, engineers, and other industry teammates to translate operational and strategic requirements into scalable, production-ready solutions. You ...

Leidos

Software Developer

Gaithersburg, MD

$107K - $195K/yr

The Leidos Spatial Solutions Division has an exciting opportunity for an experienced Software Developer to help enable NGA's Geospatial Intelligence (GEOINT) mission collecting sciences, technology ...

Kepora

Software Developer

Potomac, MD

Software Engineer to support an office that is accountable for clearance processing of all individuals with access to Customer data and facilities. This position is in Chantilly, VA and requires an ...

TecTammina

Software Developer

Rockville, MD

Mentors and directs the efforts of more entrylevel Engineers. 6.Provides third tier support when required. 7. Contributes to the development and achievement of ABTG organizational goals and ...

VIS IT Solutions Inc

SYNON Developer

Dulles, VA · Remote

Synon Developer Location: Remote From prototype to real-world impact - be part of a global shift by doing work that matters. - Candidate will work on RxCLAIM/Claim Adjudication enhancement projects ...

AUI fine foods

Web Developer

Gaithersburg, MD · On-site

The developer will need to collaborate closely with AUI's marketing, management and technology teams as well as external vendors to deliver an exceptional product. * Advanced development, support and ...

VIS IT Solutions Inc

SYNON Developer

Dulles, VA · On-site

Synon Developer Location: Remote From prototype to real-world impact - be part of a global shift by doing work that matters. - Candidate will work on RxCLAIM/Claim Adjudication enhancement projects ...

AUI Fine foods

Web Developer

Gaithersburg, MD · On-site

The developer will need to collaborate closely with AUI's marketing, management and technology teams as well as external vendors to deliver an exceptional product. * Advanced development, support and ...

Digital Links Inc

Java Developer (Healthcare)

Rockville, MD · On-site

$52 - $67.25/hr

Java Developer Location: Rockville, MD (Onsite) Java Developer to design Seeking an experienced Java Developer to design, develop, and maintain scalable healthcare data exchange solutions (Fast ...

LifeCycle Corporation

Web Developer-2

Frederick, MD · On-site

Web Developer Level 2 with technical experience with: * Exp with REACT * Codes less complex websites using HTML, Visual Basic, or other web-based programming languages * Support website planning and ...

Salient Federal Solutions, Inc.

Java Developer

Rockville, MD · On-site

$52 - $67.25/hr

Salient CRGT seeks a Java Developer for our Food & Drug Administration/JAADE2 program in Rockville, MD. In this role, you will be part of an exciting team building, maintaining and troubleshooting ...

Digital Links Inc

Java Developer (HL7/FHIR)

Rockville, MD · On-site

$52 - $67.25/hr

Java Developer Location: Rockville, MD (Onsite) Java Developer to design Seeking an experienced Java Developer to design, develop, and maintain scalable healthcare data exchange solutions and HL7 ...

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All JobsJr Developer JobsJr Developer Jobs in Frederick, MD

Jr Developer information

See Frederick, MD salary details

$23.9K

$88.5K

$136.7K

How much do jr developer jobs pay per year?

As of Jun 10, 2026, the average yearly pay for jr developer in Frederick, MD is $88,466.00, according to ZipRecruiter salary data. Most workers in this role earn between $66,600.00 and $86,500.00 per year, depending on experience, location, and employer.

What are Jr Developers?

Jr Developers, or Junior Developers, are entry-level professionals in the software development field. They typically have less experience than mid-level or senior developers and are responsible for writing, testing, and maintaining code under the guidance of more experienced team members. Jr Developers often work on smaller tasks, bug fixes, or simple features, and are expected to learn and grow their technical skills through mentorship and hands-on experience. Their role is essential for building a solid foundation in software development and contributing to the success of development projects.

What are some common challenges a Jr Developer might face when joining a new team, and how can they overcome them?

As a Jr Developer, one of the most common challenges is adapting to unfamiliar codebases and workflows. It can be daunting to understand existing projects and navigate team-specific tools and processes. To overcome this, Jr Developers should proactively seek help from team members, take thorough notes, and dedicate time to reviewing documentation and code. Embracing code reviews and asking questions will not only accelerate learning but also help build relationships within the team.

What is the difference between Jr Developer vs Junior Software Engineer?

AspectJr DeveloperJunior Software Engineer
Required CredentialsTypically an associate degree or coding bootcamp certificationUsually a bachelor's degree in computer science or related field
Work EnvironmentEntry-level, supervised tasks, learning-focusedSimilar entry-level environment, often with more complex project involvement
Employer & Industry UsageCommon in tech companies, startups, and IT departmentsUsed interchangeably in many companies, especially in software development teams
Search & Comparison IntentYes, often compared for entry-level rolesYes, often searched as a more formal or technical title

While both roles are entry-level software development positions, a Jr Developer often emphasizes basic coding tasks and learning, whereas a Junior Software Engineer may involve more structured engineering responsibilities. The titles are frequently used interchangeably, but understanding the specific job description can clarify expectations.

What are the key skills and qualifications needed to thrive as a Jr Developer, and why are they important?

To thrive as a Jr Developer, you need a foundational understanding of programming languages (such as JavaScript, Python, or Java), basic software development principles, and often a relevant degree or coding bootcamp certification. Familiarity with version control systems like Git, IDEs, and workflow tools like Jira or Trello is typically required. Strong problem-solving skills, effective communication, and eagerness to learn help Jr Developers stand out in the workplace. These abilities are crucial for efficiently contributing to team projects, adapting to new technologies, and growing within a dynamic development environment.
What are popular job titles related to Jr Developer jobs in Frederick, MD? For Jr Developer jobs in Frederick, MD, the most frequently searched job titles are:
What job categories do people searching Jr Developer jobs in Frederick, MD look for? The top searched job categories for Jr Developer jobs in Frederick, MD are:
What cities near Frederick, MD are hiring for Jr Developer jobs? Cities near Frederick, MD with the most Jr Developer job openings:
Jr Developer jobs near you
AI Software Developer

AI Software Developer

Leidos

Gaithersburg, MD • On-site

Full-time

Posted 8 days ago

Leidos rating

8.4

Company rating: 8.4 out of 10

Based on 146 frontline employees who took The Breakroom Quiz

55th of 426 rated business services

Job description

Leidos is seeking an AI Software Developer to join the Air Traffic Business Area within the Homeland Sector, supporting the development of the Leidos Common Baseline. Common Baseline is a mission-critical, future-ready automation solution built on a hybrid cloud data mesh architecture. As a member of a Scaled Agile software development organization, you will contribute to the technical execution of a program that integrates proven, globally deployed technologies with modern cloud-native and AI-enabled capabilities. You will work alongside cross-functional teams and technical leaders to deliver predictable outcomes in a highly regulated, safety-critical environment.
In this position, you will design and implement software solutions independently while working closely with systems engineering, product delivery, and DevSecOps teams. The primary focus is on developing microservices-based applications within an Agile/SAFe environment. Experience with AI-enabled or data-driven systems is advantageous. This position supports government programs and requires the ability to obtain and maintain a favorable Public Trust investigation
This position is located in Gaithersburg, MD or in Egg Harbor Township, NJ. This is an opportunity to contribute to projects that impact millions of air travelers.
This is a hybrid position requiring 3 days onsite and 2 days working from home.
This role focuses on building and modernizing real-time, safety-critical systems using a combination of traditional systems engineering and AI-augmented software development practices. You'll work on software that directly supports national air traffic operations, applying AI tools to accelerate development, improve quality, and enhance system reliability.
What You'll Do
  • Design, develop, and maintain microservices-based applications using modern software engineering best practices
  • Collaborate with product owners, architects, and engineers in an Agile/SAFe environment
  • Participate in sprint planning, daily standups, reviews, and retrospectives
  • Collaborate with systems engineering and program teams to translate requirements into working software solutions
  • Develop clean, maintainable, and testable code following CI/CD and DevSecOps practices
  • Contribute to system design discussions and technical decision-making
  • Integrate services with databases, messaging systems, and external APIs
  • Support troubleshooting, performance tuning, and continuous improvement
  • Work closely with QA, DevOps, and platform teams to ensure reliable delivery
  • Implement modern automated testing strategies, including unit, integration, contract, and end-to-end testing
  • Use AI-assisted development tools to accelerate coding, refactoring, debugging, and test creation

Core Technical Qualifications:
  • Bachelor's degree in Computer Science, Engineering, or a related technical field (or equivalent experience)
  • 2+ years of relevant experience or a Master's Degree
  • Hands-on experience building and supporting microservices-based systems
  • Proficiency in at least one modern programming language (e.g., Java, Python, C++, or similar on a Linux-based system)
  • Experience or exposure to AI/ML-enabled systems (Claude-Code), automation, or intelligent platforms.
  • Experience working in Agile environments
  • Understanding of APIs and distributed system concepts
  • Ability to obtain and maintain a Public Trust
  • U.S. citizenship required
  • Successful completion of background investigations as required by the government customer

Preferred / Desired Qualifications
  • Experience with Git-based version control and CI/CD pipelines
  • Familiarity with Scaled Agile Framework (SAFe)
  • Experience working with relational and/or NoSQL databases
  • Hands-on experience with Kafka or other event-streaming technologies
  • Cloud experience (AWS, Azure, or GCP)
  • Containerization and orchestration experience (Docker, Kubernetes)
  • Experience working in DevSecOps environments
  • Experience with test automation frameworks and integration of automated test suites into CI/CD pipelines

Why Leidos?
You'll work on systems where performance, precision, and reliability matter - every second. This is not experimental AI for prototypes. This is disciplined, responsible AI applied to mission-critical software that supports national infrastructure.
If you're excited by solving complex problems in regulated, real-world environments - and using AI as a force multiplier rather than a shortcut - we'd like to talk.
ATMC
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.
Original Posting:
April 9, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $69,550.00 - $125,725.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

What Leidos employees say

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About Leidos

Sourced by ZipRecruiter

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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