Top 87 Associate Software Engineer Jobs in Columbia, MD

Mid-Level Backend Software Engineer
Leidos —Gaithersburg, MD
- $87,100 - $157,450 a year
- Full-time
- Azure
- Computer Science
- System design
Mid-Level Software Engineer
Leidos —Gaithersburg, MD
- $87,100 - $157,450 a year
- Full-time
- Azure
- Computer Science
- Mid-level
5d
Mid-Level UI/UX Engineer
Leidos —Gaithersburg, MD
- $87,100 - $157,450 a year
- Full-time
- Computer Science
- Mid-level
- Master's degree
Mid Level Angular Developer
CGI Group, Inc. —Washington, DC
- $58,000 - $136,200 a year
- Computer science
- Computer Science
- English
- Paid parental leave
- Paid holidays
Associate Cyber Software Engineer
Northrop Grumman —Jessup, MD
- $80,100 - $125,800 a year
- Overtime
- Computer Science
- Mid-level
- Windows
- Paid holidays
- Disability insurance
FLEX Associate Software Engineer - CDP
Marriott International, Inc —Bethesda, MD
- $31.73 - $50.00 an hour
- Full-time
- Computer science
- Computer Science
- Maintenance
- Commuter assistance
- Paid parental leave
5d
Associate Software Engineer
GIGATEC Engineering —Annapolis Junction, MD
- Full-time
- Mid-level
- Office
- US work authorization
- Health insurance
Java Developer / OneStream, Associate (Part Time - Regular)
LCG, Inc. —Rockville, MD
- $27.00 - $49.04 an hour
- Part-time
- Hybrid work
- Azure
- Computer Science
- Salesforce
- Paid holidays
- Disability insurance
Quick Apply
2d
Associate CNO Developer
MANTECH —Fort Meade, MD
- Full-time
- Maintenance
- Research
- Office
9d
PowerApps Developer, Associate
LCG, Inc. —Rockville, MD
- $40 - $52 an hour
- Part-time
- Azure
- Computer Science
- Mid-level
- Paid holidays
- Disability insurance
Quick Apply
Mid-Level Software Engineer
Visionist, Inc. —Columbia, MD
- $180,000 - $225,000 a year
- Overtime
- Software troubleshooting
- Mid-level
- Office
- Paid parental leave
- Health savings account
13d
Mid-Level Software Engineer
Belay Technologies —Laurel, MD
- $70,000 - $190,000 a year
- Full-time
- Remote
- 6 years
- Mid-level
- SQL
- Health savings account
- Paid holidays
Quick Apply
Mid-Level Software Engineer (Remote)
RealmOne —Columbia, MD
- $145,000 - $160,000 a year
- Full-time
- Remote
- Computer Science
- Mid-level
- Java
- Paid training
- Paid parental leave
UI / UX Developer, Associate
LCG, Inc. —Rockville, MD
- $80,000 - $115,000 a year
- Part-time
- Hybrid work
- Azure
- Computer Science
- Mid-level
- Paid holidays
- Disability insurance
Quick Apply
Mid Level Onsite Python Developer with CDE Experience
Futrend Technology, Inc. —Bethesda, MD
- $90,000 - $110,000 a year
- System design
- Mid-level
- SQL
Quick Apply
Entry to Mid-Level Software Engineer (TS/SCI with Polygraph Required)
Red Alpha —Columbia, MD
- $85,000 - $175,000 a year
- Full-time
- Computer Science
- Mid-level
- Windows
- Paid holidays
- Health insurance
Mid-Level Java SWE
Shield Consulting Solutions —Annapolis Junction, MD
- Full-time
- 11+ years
- Java
- AWS
- Paid holidays
- Paid time off
Quick Apply
Mid-Level Software Developer
SITEC Consulting —Laurel, MD
- $150,000 - $200,000 a year
- Full-time
- Mid-level
- AWS
- Bachelor's degree
- Paid jury duty
- AD&D insurance
Quick Apply
Mid-Level Linux Software Engineer
Jacobs —Rockville, MD
- $100,000 - $140,000 a year
- Hybrid work
- Computer Science
- Office
- Master's degree
- Health insurance
- Dental insurance
Mid Level Software Engineer
BlackSea Technologies —Baltimore, MD
- $125,000 - $150,000 a year
- System design
- Mid-level
- 3 years
Quick Apply

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Mid-Level Backend Software Engineer

Leidos -
Gaithersburg, MD

Apply Now

Job Details

Full-time
$87,100 - $157,450 a year

Qualifications

SQL
Linux
Query management

Full Job Description

Description

If you’ve been building your skills in backend development, object‑oriented programming, and mission‑driven engineering, and you’re ready for work that actually moves the needle, this is the kind of opportunity cleared engineers pursue when they want to grow while making real impact. If you take pride in your craft, enjoy solving meaningful technical problems, and want your work to support a mission with visibility at senior levels, you’ll thrive here.

We’re hiring a Backend Software Engineer to support a high‑visibility, data‑driven application used across the organization for analytics and reporting. You’ll help build and maintain core backend services, develop RESTful APIs, support data‑driven functionality, and contribute to ongoing system enhancements within a Linux‑based environment. Your work will directly support system reliability, performance, and data accuracy for mission stakeholders. Our primary development team operates out of Gaithersburg, MD, but we also support onsite engineers in Chantilly, VA, Alexandria, VA; Aurora, CO; St. Louis, MO; and Tucson, AZ, giving top talent multiple paths to join the mission.

And while the requisition requirements may seem standard fare, the position is not; as it will join a high performing team that is changing the way digital engineering and mission operations intelligence is enabled for our customer.

Why This Role Stands Out

High Impact: Your work supports a widely used application that drives real‑time decision‑making
High Visibility: Collaborate with engineering teams and mission stakeholders across programs
Career Growth: Build deeper expertise in backend development, API design, and scalable systems
Challenging Work: Contribute to complex backend features — not routine maintenance tasks

Essential Responsibilities

Backend Development: Design, develop, test, and maintain backend application components using Java or Python
REST API Development: Develop and maintain RESTful services to support application functionality and system integrations
Object-Oriented Programming: Apply object-oriented design principles to build scalable and maintainable systems
Database Development: Write and modify SQL queries to support application functionality and data retrieval
Data Source Collaboration: Collaborate with internal and external teams to understand data sources, formats, and access methods, and support integration into backend systems
Linux Environments: Develop and troubleshoot applications within Linux-based environments
Data Processing & Business Logic: Implement backend logic for data transformation, processing, and system workflows
Bug Fixing & Enhancements: Identify, debug, and resolve application-level defects and performance issues
Code Quality: Follow coding standards, participate in code reviews, and support documentation efforts

Basic Qualifications

Bachelor’s degree in Computer Science, Software Engineering, or a related field with 4–8 years of experience; or a Master’s degree with 2–6 years of experience
US Citizenship
Active TS/SCI with the ability to successfully pass a Polygraph
Professional experience developing object‑oriented applications in Java or Python
Hands‑on experience building and maintaining RESTful APIs
Basic to moderate experience with SQL capability, including writing queries and working with relational databases
Working knowledge of Linux‑based environments
Ability to work independently on defined tasks within established technical frameworks and deliver reliable results

Preferred Qualifications

Experience with Apache Airflow or similar workflow orchestration technologies
Experience with Spring Boot, Django, or similar backend frameworks
Exposure to CI/CD pipelines (GitLab, Jenkins, etc.)
Familiarity with containerization (Docker, OpenShift)
Exposure to cloud environments (AWS or Azure)
Experience working in Agile development environments

#MARU

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 16, 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 $87,100.00 - $157,450.00

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.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [email protected].

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

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Refine Your Search

Associate Software Engineer jobs in Columbia, MD

Mid-Level Backend Software Engineer

Mid-Level Software Engineer

Mid-Level UI/UX Engineer

Mid Level Angular Developer

Associate Cyber Software Engineer

FLEX Associate Software Engineer - CDP

Associate Software Engineer

Java Developer / OneStream, Associate (Part Time - Regular)

Associate CNO Developer

PowerApps Developer, Associate

Mid-Level Software Engineer

Mid-Level Software Engineer

Mid-Level Software Engineer (Remote)

UI / UX Developer, Associate

Mid Level Onsite Python Developer with CDE Experience

Entry to Mid-Level Software Engineer (TS/SCI with Polygraph Required)

Mid-Level Java SWE

Mid-Level Software Developer

Mid-Level Linux Software Engineer

Mid Level Software Engineer

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