Senior Software Engineer
$120K - $159K/yr
Leidos is seeking a talented Senior Software Engineer to work in our Huntsville office. This is an exciting opportunity to use your experience to help develop software for Tactical strike guided ...
$120K - $159K/yr
Leidos is seeking a talented Senior Software Engineer to work in our Huntsville office. This is an exciting opportunity to use your experience to help develop software for Tactical strike guided ...
$120K - $159K/yr
Leidos is seeking a talented Senior Software Engineer to work in our Huntsville office. This is an exciting opportunity to use your experience to help develop software for Tactical strike guided ...
Huntsville, AL · On-site
$120K - $159K/yr
deciBel Research has an immediate opening for a Senior Software Engineer in Huntsville, AL. Position Description: deciBel Research has an immediate opening for a Sr. Software Engineer in Huntsville ...
Huntsville, AL · On-site
$120K - $159K/yr
deciBel Research has an immediate opening for a Senior Software Engineer in Huntsville, AL. Position Description: deciBel Research has an immediate opening for a Sr. Software Engineer in Huntsville ...
Huntsville, AL · On-site
$121K - $160K/yr
They are seeking a Senior Software Engineer to support the Missile Defense Agency program, responsible for developing simulation infrastructure and leading agile software development efforts.
Huntsville, AL · On-site
$121K - $160K/yr
They are seeking a Senior Software Engineer to support the Missile Defense Agency program, responsible for developing simulation infrastructure and leading agile software development efforts.
It is preferred for the Senior Software Engineer to have at least five (5) years of intensive software development experience in modern languages such as C/C++ or Java and knowledge of other commonly ...
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It is preferred for the Senior Software Engineer to have at least five (5) years of intensive software development experience in modern languages such as C/C++ or Java and knowledge of other commonly ...
Huntsville, AL · On-site
$53.75 - $71/hr
It is preferred for the Senior Software Engineer to have at least five (5) years of intensive software development experience in modern languages such as C/C++ or Java and knowledge of other commonly ...
Huntsville, AL · On-site
$53.75 - $71/hr
It is preferred for the Senior Software Engineer to have at least five (5) years of intensive software development experience in modern languages such as C/C++ or Java and knowledge of other commonly ...
Huntsville, AL · On-site
$53.75 - $71/hr
It is preferred for the Senior Software Engineer to have at least five (5) years of intensive software development experience in modern languages such as C/C++ or Java and knowledge of other commonly ...
Huntsville, AL · On-site
$53.75 - $71/hr
It is preferred for the Senior Software Engineer to have at least five (5) years of intensive software development experience in modern languages such as C/C++ or Java and knowledge of other commonly ...
Huntsville, AL · On-site
$127K - $167K/yr
Responsibilities PeopleTec is currently seeking a Senior Software Engineer to support our Huntsville, AL location. MDA Joint Integrated Fire Control is seeking Modeling & Simulation (M&S) Engineers ...
Huntsville, AL · On-site
$127K - $167K/yr
Responsibilities PeopleTec is currently seeking a Senior Software Engineer to support our Huntsville, AL location. MDA Joint Integrated Fire Control is seeking Modeling & Simulation (M&S) Engineers ...
It is preferred for the Senior Software Engineer to have at least five (5) years of intensive software development experience in modern languages such as C/C++ or Java and knowledge of other commonly ...
It is preferred for the Senior Software Engineer to have at least five (5) years of intensive software development experience in modern languages such as C/C++ or Java and knowledge of other commonly ...
Huntsville, AL · On-site
$107K - $195K/yr
Leidos is seeking a Senior Software Engineer to support the development of mission-critical software for missile defense systems. The selected candidate will contribute to the design, development ...
Huntsville, AL · On-site
$107K - $195K/yr
Leidos is seeking a Senior Software Engineer to support the development of mission-critical software for missile defense systems. The selected candidate will contribute to the design, development ...
$127K - $167K/yr
PeopleTec is currently seeking a Senior Software Engineer to support our Huntsville, AL location. MDA Joint Integrated Fire Control is seeking Modeling & Simulation (M&S) Engineers with a background ...
$127K - $167K/yr
PeopleTec is currently seeking a Senior Software Engineer to support our Huntsville, AL location. MDA Joint Integrated Fire Control is seeking Modeling & Simulation (M&S) Engineers with a background ...
Huntsville, AL · On-site
$127K - $167K/yr
Responsibilities PeopleTec is currently seeking a Senior Software Engineer to support our Huntsville, AL location. MDA Joint Integrated Fire Control is seeking Modeling & Simulation (M&S) Engineers ...
Huntsville, AL · On-site
$127K - $167K/yr
Responsibilities PeopleTec is currently seeking a Senior Software Engineer to support our Huntsville, AL location. MDA Joint Integrated Fire Control is seeking Modeling & Simulation (M&S) Engineers ...
Huntsville, AL · On-site
$121K - $160K/yr
They are seeking a Senior Software Engineer to develop applications and simulation infrastructure for the US Army Aviation and Missile Center. Responsibilities : • Manage repositories (Git) and ...
Huntsville, AL · On-site
$121K - $160K/yr
They are seeking a Senior Software Engineer to develop applications and simulation infrastructure for the US Army Aviation and Missile Center. Responsibilities : • Manage repositories (Git) and ...
$107K - $195K/yr
Leidos is seeking a Senior Software Engineer to support the development of mission-critical software for missile defense systems. The selected candidate will contribute to the design, development ...
$107K - $195K/yr
Leidos is seeking a Senior Software Engineer to support the development of mission-critical software for missile defense systems. The selected candidate will contribute to the design, development ...
$120K - $159K/yr
Leidos' Defense Sensor Research and Analysis Division is seeking a talented, self-motivated Senior Software Engineer with strong expertise in Java and C++, modern containerized development ...
$120K - $159K/yr
Leidos' Defense Sensor Research and Analysis Division is seeking a talented, self-motivated Senior Software Engineer with strong expertise in Java and C++, modern containerized development ...
Huntsville, AL · On-site
$120K - $159K/yr
Leidos' Defense Sensor Research and Analysis Division is seeking a talented, self-motivated Senior Software Engineer with strong expertise in Java and C++, modern containerized development ...
Huntsville, AL · On-site
$120K - $159K/yr
Leidos' Defense Sensor Research and Analysis Division is seeking a talented, self-motivated Senior Software Engineer with strong expertise in Java and C++, modern containerized development ...
Huntsville, AL · On-site
$121K - $160K/yr
They are currently seeking a Senior Software Engineer to develop, test, and debug software while collaborating with technical staff to resolve issues and enhance user experience. Responsibilities ...
Huntsville, AL · On-site
$121K - $160K/yr
They are currently seeking a Senior Software Engineer to develop, test, and debug software while collaborating with technical staff to resolve issues and enhance user experience. Responsibilities ...
Huntsville, AL · On-site
$121K - $160K/yr
They are seeking a Senior Software Developer to develop, test, and debug software while ensuring it meets user, performance, quality, interface, and security requirements. Responsibilities : • ...
Huntsville, AL · On-site
$121K - $160K/yr
They are seeking a Senior Software Developer to develop, test, and debug software while ensuring it meets user, performance, quality, interface, and security requirements. Responsibilities : • ...
Huntsville, AL · On-site
$121K - $160K/yr
Senior Software Engineer - Huntsville, AL Full Visibility is seeking a Senior Software Engineer to work in Huntsville, AL. Candidate must possess an active Top Secret / SCI eligible clearance. The ...
Huntsville, AL · On-site
$121K - $160K/yr
Senior Software Engineer - Huntsville, AL Full Visibility is seeking a Senior Software Engineer to work in Huntsville, AL. Candidate must possess an active Top Secret / SCI eligible clearance. The ...
Huntsville, AL · On-site
$54 - $71.50/hr
It is preferred for the Senior Software Engineer to have at least five (5) years of intensive software development experience in modern languages such as C/C++ or Java and knowledge of other commonly ...
Huntsville, AL · On-site
$54 - $71.50/hr
It is preferred for the Senior Software Engineer to have at least five (5) years of intensive software development experience in modern languages such as C/C++ or Java and knowledge of other commonly ...
Huntsville, AL · On-site
$121K - $160K/yr
The Senior Software Engineer will develop, test, and debug software while addressing user requirements and resolving customer complaints related to software issues. Responsibilities : • Develops ...
Huntsville, AL · On-site
$121K - $160K/yr
The Senior Software Engineer will develop, test, and debug software while addressing user requirements and resolving customer complaints related to software issues. Responsibilities : • Develops ...
$67.6K - $77.1K
1% of jobs
$77.1K - $86.6K
2% of jobs
$86.6K - $96.1K
7% of jobs
$96.1K - $105.6K
9% of jobs
$109.6K is the 25th percentile. Wages below this are outliers.
$105.6K - $115.1K
13% of jobs
$115.1K - $124.6K
16% of jobs
The median wage is $125.8K / yr.
$124.6K - $134.1K
16% of jobs
$142.1K is the 75th percentile. Wages above this are outliers.
$134.1K - $143.6K
14% of jobs
$143.6K - $153K
11% of jobs
$153K - $162.5K
8% of jobs
$162.5K - $172K
3% of jobs
$67.6K
$128.4K
$172K
A senior software engineer designs, codes, tests, and maintains computer software. While these are your primary responsibilities as a senior software engineer, you may also have supervisory duties. These include overseeing a team of junior software engineers or developers. The senior software engineer title is sometimes used interchangeably with senior developer, and positions for both may share similar job duties and responsibilities. In general, software engineers are distinguished from developers in that software engineers apply engineering principles to software development.
| Aspect | Senior Software Engineer | Software Developer |
|---|---|---|
| Credentials | Bachelor's or higher in CS or related field; experience often 5+ years | Bachelor's in CS or related field; entry to mid-level experience |
| Work Environment | Designing complex systems, leading projects, mentoring | Writing code, developing features, debugging |
| Industry Usage | Used across tech companies, startups, enterprise | Common in software firms, startups, freelance work |
| Search & Comparison | Often compared for experience level, responsibilities | Compared for entry-level to mid-level roles |
The main difference between a Senior Software Engineer and a Software Developer lies in experience, responsibilities, and scope. Senior Software Engineers typically have more experience, lead projects, and mentor others, while Software Developers focus on coding and feature development. Both roles are essential in tech companies, but the Senior Software Engineer position involves higher-level planning and leadership.

8.3
Based on 151 frontline employees who took The Breakroom Quiz
77th of 483 rated business services
Leidos is dedicated to making the world a safer place. This starts with helping our customers in the Defense Industry achieve their critical missions. Our dedicated Defense Group employees are solving critical challenges across the globe. 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 sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.With offices across the United States engaging in the defense, space, cyber and commercial fields, Leidos provides responsive, cost-effective engineering, scientific and IT solutions. Leidos is well known for our people-oriented culture, positive work environment, technical excellence, and resilient business ethics.
Leidos is seeking a talented Senior Software Engineer to work in our Huntsville office. This is an exciting opportunity to use your experience to help develop software for Tactical strike guided munition programs.
This position focuses on the development of robust, innovative software frameworks, as well as the fielding, support, and maintenance of software products. Software products range from analysis tools/simulations, mission planning software, and components of mission-critical systems.
Primary Responsibilities
Provide technical leadership and direction for software development teams (5-15 engineers).
Define full-stack software architecture and design patterns for missile system applications implementing major system functions (i.e. guidance, navigation, control, telemetry, and mission planning).
Lead technical reviews, design reviews, and code reviews to ensure quality and compliance.
Make critical technical decisions on tools, frameworks, and development approaches.
Serve as the primary technical interface with government customers and program management.
Mentor and develop junior and mid-level software engineers.
Champion adoption of open systems architectures and modular open systems approach (MOSA) with standardized interfaces.
Ensure software design support modularity, reusability, portability, and maintainability requirements.
Lead code reviews, ensuring coding standards and best practices are applied.
Direct communication with customers, end users, and team members will be required on a frequent basis.
Support flight test operations and post-test analysis.
Ensure adherence to military and aviation standards for safety, cybersecurity, and RMF.
Basic Qualifications
Candidate must possess at least a bachelor's degree in software engineering, Computer Science, Computer Engineering, Electrical Engineering, Aerospace Engineering, Mathematics, or equivalent technical degree with an overall GPA of 3.0 or higher.
12+ years of relevant technical experience, or 10+ years with a master's degree in a related field.
Active Secret clearance or ability to obtain one.
Proven experience leading software development teams on complex, multi-disciplinary projects.
Strong experience with open systems concepts, architectures, and implementation
Knowledge of Modular Open Systems Approach (MOSA) principles and application
Demonstrate expert-level experience with C/C++ required.
Experience with Python and Java.
Familiarity with real-time embedded systems and RTOS environments (e.g. VxWorks, FreeRTOS).
Deep understanding of software architecture patterns and design principles.
Excellent communication skills with ability to present to senior leadership and government customers.
Strong problem-solving abilities and systems-level thinking.
Excellent communication skills with ability to present to senior leadership and government customers.
Experience with software configuration management principles and techniques, software quality engineering concepts, good software standards and practices, and a strong understanding of why these are important.
Preferred Qualifications
Experience with embedded missile systems, aerospace, or weapons systems development.
Hands-on experience implementing open architecture frameworks such as FACE, OMS, or SOSA.
Experience with containerization and microservices technology.
Knowledge of guidance & control algorithms, navigation systems, mission planning systems (NOMS, JMPS), and sensors a huge plus.
Familiarity with Model-Based Systems Engineering (MBSE) and SysML.
Knowledge of software development standards: DO-178C, MIL-STD-882e, or similar.
Experience with containerization (Docker/Kubernetes) and CI/CD pipelines.
Proficiency with MATLAB/Simulink for algorithm development and simulation a plus.
Understanding of hardware-software integration and software systems engineering principles
Previous experience in a Software Lead role (IPT Lead, Technical Lead, Software PM, etc.).
Agile Scrum Master or Product Owner experience a plus.
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 31, 2026For 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.
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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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.
It services
10,000+ Employees
Reston, VA, US