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Senior Software Development Engineer In Test Jobs in Frederick, MD

Leidos

Software Development Engineer

Gaithersburg, MD · On-site

$69K - $125K/yr

Leidos is seeking an Software Development Engineer who will be a member of a dynamic team working ... Additional factors considered in extending an offer include (but are not limited to ...

Leidos

Sr. Software Developer

Gaithersburg, MD · On-site

$87K - $157K/yr

Leidos is seeking a Sr. Software Development Engineer who will be a member of a dynamic team ... Additional factors considered in extending an offer include (but are not limited to ...

Leidos

Sr. Software Developer

Gaithersburg, MD · On-site

$87K - $157K/yr

Leidos is seeking a Sr. Software Development Engineer who will be a member of a dynamic team ... Additional factors considered in extending an offer include (but are not limited to ...

Leidos

Senior Software Engineer

Rockville, MD · On-site

$107K - $195K/yr

Participate in test, staging, and production deployments , ensuring system reliability and ... Implement API development , ETL processes , and enterprise search capabilities (e.g., Elasticsearch)

Leidos

Senior Software Engineer

Gaithersburg, MD · On-site

$107K - $195K/yr

Participate in test, staging, and production deployments , ensuring system reliability and ... Implement API development , ETL processes , and enterprise search capabilities (e.g., Elasticsearch)

Leidos

Senior Software Engineer

Rockville, MD · Hybrid

$131K - $237K/yr

As a Senior Software Engineer, you will : * Support the development of distributed backend services ... in a quantitative or analytical field (Software Development, Computer Science, Mathematics ...

Leidos

Senior Software Engineer

Rockville, MD · On-site

$131K - $237K/yr

As a Senior Software Engineer, you will : * Support the development of distributed backend services ... in a quantitative or analytical field (Software Development, Computer Science, Mathematics ...

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Senior Software Development Engineer In Test information

See Frederick, MD salary details

$22.4K

$124.8K

$162.6K

How much do senior software development engineer in test jobs pay per year?

As of Jul 22, 2026, the average yearly pay for senior software development engineer in test in Frederick, MD is $124,841.00, according to ZipRecruiter salary data. Most workers in this role earn between $109,900.00 and $142,700.00 per year, depending on experience, location, and employer.

How does a Senior Software Development Engineer In Test typically collaborate with development and product teams to ensure software quality?

As a Senior Software Development Engineer In Test (SDET), you will work closely with both development and product teams throughout the software development lifecycle. This includes participating in design and requirements discussions to identify potential test cases early, contributing to test automation strategies, and providing feedback on testability and quality risks. SDETs often pair with developers to review code, co-create test plans, and triage bugs together, ensuring that testing is fully integrated into the CI/CD pipeline. Effective communication and cross-team collaboration are essential for proactively identifying issues and maintaining high software quality standards.

What engineers make $500,000?

Senior Software Development Engineers In Test (SDETs) with extensive experience, specialized skills in automation, and working at large tech companies or in high-cost-of-living regions can earn $500,000 or more annually. Compensation often includes base salary, bonuses, and stock options, especially for those in leadership roles or with rare expertise in testing automation, cloud platforms, or security tools.

Will QA or SDET get replaced by AI?

Senior Software Development Engineers in Test (SDETs) and QA professionals perform complex testing tasks that require critical thinking, creativity, and understanding of system architecture, which AI currently cannot fully replicate. While AI tools can automate repetitive testing and assist in identifying issues, human oversight and expertise remain essential for designing test strategies, interpreting results, and ensuring software quality in a fast-evolving environment.

What is the SDET engineer's salary?

The salary for a Senior Software Development Engineer in Test (SDET) typically ranges from $90,000 to $140,000 annually, depending on experience, location, and company size. SDETs with strong programming skills and experience with automation tools like Selenium or Jenkins tend to earn higher salaries.

Is SDET still in demand?

Senior Software Development Engineers in Test (SDETs) are in strong demand due to the increasing emphasis on quality assurance and automation in software development. SDETs with skills in programming, test automation tools, and CI/CD pipelines are particularly sought after across various industries, ensuring continuous testing and faster release cycles.

What is the difference between Senior Software Development Engineer In Test vs Software Development Engineer In Test?

AspectSenior Software Development Engineer In TestSoftware Development Engineer In Test
ExperienceTypically 5+ years in testing and developmentEntry to mid-level, 1-3 years experience
ResponsibilitiesDesigns complex test frameworks, mentors juniors, leads testing initiativesDevelops test cases, automates tests, executes testing tasks
Skills & CertificationsAdvanced coding, automation, testing tools, leadership skillsProgramming, automation, testing tools
Work EnvironmentCollaborates with cross-functional teams, often in Agile settingsWorks closely with developers, focuses on automation and manual testing

In summary, a Senior Software Development Engineer In Test has more experience, leadership responsibilities, and strategic testing roles compared to a Software Development Engineer In Test, who primarily focuses on developing and executing tests.

What are the key skills and qualifications needed to thrive as a Senior Software Development Engineer In Test, and why are they important?

To thrive as a Senior Software Development Engineer In Test, you need advanced programming skills, deep knowledge of software testing methodologies, and a bachelor's degree in computer science or a related field. Expertise with automation frameworks (such as Selenium, Cypress, or Appium), CI/CD tools, and scripting languages is typically required, along with relevant certifications like ISTQB. Strong analytical thinking, problem-solving, and effective communication are crucial soft skills for collaborating with cross-functional teams and driving quality initiatives. These capabilities ensure rigorous test coverage, faster release cycles, and high-quality software products.

What does a Senior Software Development Engineer in Test (SDET) do?

A Senior Software Development Engineer in Test (SDET) is responsible for designing, developing, and maintaining automated test frameworks and tools to ensure the quality and reliability of software products. They work closely with development and QA teams to identify test requirements, create robust test cases, and integrate automated tests into the CI/CD pipeline. In addition to coding and scripting, Senior SDETs mentor junior team members, analyze test results, and help troubleshoot complex issues to continuously improve software quality. Their expertise bridges the gap between development and testing, ensuring both speed and quality in software releases.
What are the most commonly searched types of Software Development Engineer In Test jobs in Frederick, MD? The most popular types of Software Development Engineer In Test jobs in Frederick, MD are:
What are popular job titles related to Senior Software Development Engineer In Test jobs in Frederick, MD? For Senior Software Development Engineer In Test jobs in Frederick, MD, the most frequently searched job titles are:
What job categories do people searching Senior Software Development Engineer In Test jobs in Frederick, MD look for? The top searched job categories for Senior Software Development Engineer In Test jobs in Frederick, MD are:
What cities near Frederick, MD are hiring for Senior Software Development Engineer In Test jobs? Cities near Frederick, MD with the most Senior Software Development Engineer In Test job openings:
Senior Software Development Engineer In Test jobs near you
Infographic showing various Senior Software Development Engineer In Test job openings in Frederick, MD as of June 2026, with employment types broken down into 5% As Needed, 42% Full Time, 24% Part Time, and 29% Contract. Highlights an 93% Physical, 1% Hybrid, and 6% Remote job distribution, with an average salary of $124,841 per year, or $60 per hour.
Software Development Engineer

Software Development Engineer

Leidos

Gaithersburg, MD • On-site

$69K - $125K/yr

Full-time

Posted 12 days ago

Job description

Leidos is seeking an Software Development Engineer who will be a member of a dynamic team working on the Federal Aviation Administration's En-Route Automation Modernization (ERAM) technology, which is the heart of the Next Generation Air Transportation System and the pulse of the National Airspace System helping to advance our transition from a ground-based system of air traffic control to a satellite-based system of air traffic management. ERAM is vital to the future of air navigation, providing the foundational platform required for FAA to enable NextGen solutions, via modernization programs such as System Wide Information Management, Data Communications, and Automatic Dependent Surveillance- Broadcast.

ERAM will provide benefits for users and the flying public by increasing air traffic flow Flight Deck (FDK) functions include:

Real-Time Programming on High Availability Systems

Multi-threaded programming

Low Level Operating Systems Customization (RedHat, LINUX)

Low level communication software (TCP-IP, UDP, SCTP)

Support of Common Services utilized by ERAM Application teams

System Maintenance Concepts

Primary Responsibilities

Modernizing the AT control system by improving the availability and performance of the ERAM system.

Optimizing the experience for the flying public, Air Traffic Control, and the airline industry by improving the collaboration and decision-making capabilities of flight controllers

Developing and maintaining the FAA air traffic control software (primarily Ada95/C++) on a UNIX/Linux platform. There are a number of support/maintenance functions that utilize PERL/PYTHON.

Performing software development as needed for the ERAM system

Coordinate Solutions with Systems Engineering

Basic Qualifications

Computer Science or Computer Engineering Degree

Demonstrated Software Development Skills/Capabilities

Excellent Verbal and Communication Skills

Demonstrated ability to debug and solve problems

A Strong Desire to Learn

Preferred Qualifications

2 to 4 years of work experience in a Technical organization performing Software Engineering Tasks.

Excellent Verbal and Written Communication Skills

Leadership Skills & Experience

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:July 13, 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 onlyand 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.

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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

Social media

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