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Sr Fullstack Developer Jobs in Gaithersburg, MD (NOW HIRING)

Entarian

Engineering Lead

Washington, DC · On-site

$116K - $152K/yr

Overview/ Job ResponsibilitiesEntarian seeking an experienced Senior FullStack Development Lead to ... The position serves as the primary lead coordinating engineering activities, operational priorities ...

VTG

Sr. Software Engineer

Herndon, VA · On-site

$126K - $166K/yr

... fullstack development skills with Angular, Spring Boot, and Java. • Experience building and integrating APIs. • Handson experience with agile development practices. • Knowledge of DevOps, CI/CD ...

Data Society

Sr. Backend Engineer

Falls Church, VA · On-site

$120 - $170/hr

About the Role The onshore Senior Back-End Engineer leads backend microservices architecture and ... Fullstack engineer with a backend bent - able to contribute to a React/Typescript frontend when ...

New

Data Society

Sr. Backend Engineer

Washington, DC · Remote

About the Role The onshore Senior Back-End Engineer leads backend microservices architecture and ... Fullstack engineer with a backend bent - able to contribute to a React/Typescript frontend when ...

Data Society

Sr. Backend Engineer

Washington, DC · On-site +1

About the Role The onshore Senior Back-End Engineer leads backend microservices architecture and ... Fullstack engineer with a backend bent - able to contribute to a React/Typescript frontend when ...

Data Society

Sr. Backend Engineer

Washington, DC · On-site

$140 - $190/hr

About the Role The onshore Senior Back-End Engineer leads backend microservices architecture and ... Fullstack engineer with a backend bent - able to contribute to a React/Typescript frontend when ...

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Showing results 21-40

All JobsSr Fullstack Developer JobsSr Fullstack Developer Jobs in Gaithersburg, MD

Sr Fullstack Developer information

See Gaithersburg, MD salary details

$25

$64

$92

How much do sr fullstack developer jobs pay per hour?

As of Aug 11, 2026, the average hourly pay for sr fullstack developer in Gaithersburg, MD is $64.03, according to ZipRecruiter salary data. Most workers in this role earn between $53.22 and $73.75 per hour, depending on experience, location, and employer.

What is the difference between Sr Fullstack Developer vs Backend Developer?

AspectSr Fullstack DeveloperBackend Developer
Required SkillsProficiency in both frontend (JavaScript, HTML, CSS) and backend (Node.js, Python, Java)Specialized in server-side languages and database management
Work EnvironmentWorks on both client-facing and server-side componentsFocuses primarily on backend systems and APIs
Common UsageUsed across full product development teamsPrimarily in backend-focused roles within development teams

The main difference between a Sr Fullstack Developer and a Backend Developer is the scope of expertise. A Sr Fullstack Developer handles both frontend and backend tasks, while a Backend Developer specializes in server-side development. Both roles require strong programming skills, but the Fullstack role demands broader knowledge across the entire application stack.

What is a Sr Fullstack Developer?

A Sr Fullstack Developer is an experienced software engineer who is proficient in both frontend and backend development. They work with a variety of programming languages, frameworks, and databases to build fully functional web applications. In addition to coding, senior fullstack developers often lead projects, mentor junior developers, and help make architectural decisions. Their broad skill set allows them to handle tasks across the entire technology stack, ensuring that applications are efficient, scalable, and user-friendly.

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

To thrive as a Sr Fullstack Developer, you need advanced proficiency in both front-end and back-end programming languages, frameworks, and a solid understanding of software architecture, typically supported by a computer science degree or equivalent experience. Familiarity with tools such as Git, Docker, CI/CD pipelines, cloud platforms, and relevant certifications like AWS Certified Developer or similar are often expected. Strong problem-solving abilities, effective communication, and a collaborative mindset are vital soft skills for this role. These competencies enable developers to deliver robust, scalable solutions and effectively drive projects to completion in dynamic team environments.

What are some typical challenges a Sr Fullstack Developer faces when balancing front-end and back-end responsibilities?

Sr Fullstack Developers often need to juggle tasks across both the front-end and back-end, which can be challenging when priorities shift quickly or deadlines are tight. Balancing deep technical knowledge in multiple frameworks and languages while ensuring seamless integration requires strong organizational skills and effective communication with both UI/UX designers and backend engineers. Additionally, staying updated with evolving technologies on both ends is crucial, so time management and continuous learning are key to success in this role.
What are popular job titles related to Sr Fullstack Developer jobs in Gaithersburg, MD? For Sr Fullstack Developer jobs in Gaithersburg, MD, the most frequently searched job titles are:
What job categories do people searching Sr Fullstack Developer jobs in Gaithersburg, MD look for? The top searched job categories for Sr Fullstack Developer jobs in Gaithersburg, MD are:
Sr Fullstack Developer jobs near you
Infographic showing various Sr Fullstack Developer job openings in Gaithersburg, MD as of August 2026, with employment types broken down into 1% As Needed, 86% Full Time, 8% Part Time, and 5% Contract. Highlights an 83% Physical, 6% Hybrid, and 11% Remote job distribution, with an average salary of $133,178 per year, or $64 per hour.

Senior Software Engineer

Belay Technologies

Laurel, MD • On-site

Full-time

Medical, Dental, Life, Retirement, PTO

Re-posted 21 days ago

Job description

Belay Technologies has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2019, runner up in 2020 and a finalist in 2021!

Belay Technologies is seeking a Senior Software Engineer (SWE3). TThis SWE3 position if designed for a Fullstack Developer with "required" skillset backgournd.  Resource will be joining a fast-paced, integrated (Customers and Contractors) Team that is leading "Storage" efforts in support of SAE.  This resource should have an extensive background or familiarity in Git, Cluster Administration, Cloud Storage services, backup solutions and data retention with both Windows and Linux environments.

Candidates should have the following qualifications: 

  • TS/SCI Clearance with full scope polygraph
  • Twenty (20) years’ experience as a SWE in programs and contracts of similar scope, type, and complexity is required.
  • Bachelor’s degree in Computer Science or related discipline from an accredited college or university is required.
  • Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor’s degree for a total of 24 years of experience.

Candidates are required to have the following skills:

  • Git
  • Gitlab CI/CD
  • Linux
  • Kubernetes
  • Docker, Rancher, RKE2
  • Load balancers
  • System Admin
  • DevOps
  • Ansible 
  • Puppet
  • PKI
  • Python
  • Java
  • StE/StN
Candidates are desired to have the following skills:
  • AWS familiarity
  • Splunk
  • Apache (Hadoop, Spark)

Perks and Benefits:

  • 8 weeks paid leave - 4 weeks of personal leave, 3 Yay! days, take off on your birthday,11 paid holidays and optional leave up to 6 days through Belay's volunteer program
  • 10% matching in 401(k) contributions vested on day one
  • $5,000 annual training/tuition
  • Student Loan Repayment Program
  • 100% company funded HSA
  • Rich medical coverage (100% coinsurance)
  • Dental coverage including orthodontia
  • Up to $420,000 in life insurance, premiums 100% company funded
  • Amazon Prime, gym reimbursement, monthly lunches, games and prizes
  • Pet adoption program, generous referral bonus program, fun events, and more!


At Belay, we are committed to creating an environment where you can thrive both professionally and personally.  We believe in transparency and fairness in compensation. Several factors influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, education, specific skills and competencies and certifications. Belay offers a competitive total compensation package that includes benefits and perks, a flexible work-life balance, and career development.
Salary Range: $190,000 to $240,000
 

Belay Technologies is a certified Service Disabled Veteran Owned Small Business located in Columbia, Maryland (Baltimore/Washington area). Belay Technologies specializes in systems automation and full stack development. Belay Technologies provides leading technology and engineering solutions to the DoD, as well as state-of-the-art commercial products. We hire software engineers, web designers, test engineers, systems engineers, systems administrators, database engineers and other tech services. We are an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.

Key words: Full Clearance, Fort Meade, SDVOSB, Service-disabled veteran owned small business, DoD, full scope

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