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Senior Software Engineer Level 3 Jobs (NOW HIRING)

Senior Software Engineer

Littleton, CO · On-site

$120K - $150K/yr

Senior Software Engineer, Level 3 OASYS, INC., a Leading-Edge Government contractor, is seeking applicants for a Senior Software Engineer, Level 3, to support our customer in Littleton, CO. Summary:

Senior Software Engineer

Huntsville, AL · On-site

$114K - $150K/yr

Senior Software Engineer, Level 3 OASYS, INC., a Leading-Edge Government contractor, is seeking applicants for a Senior Software Engineer, Level 3, to support our customer in Huntsville, AL. Summary:

Senior Software Engineer

Huntsville, AL · Hybrid

$114K - $150K/yr

Senior Software Engineer, Level 3 OASYS, INC., a Leading-Edge Government contractor, is seeking applicants for a Senior Software Engineer, Level 3, to support our customer in Huntsville, AL. Summary:

Senior Software Engineer

Huntsville, AL · On-site

$114K - $150K/yr

Senior Software Engineer, Level 3 OASYS, INC., a Leading-Edge Government contractor, is seeking applicants for a Senior Software Engineer, Level 3 to support our customer in Huntsville, AL. Summary:

Senior Software Engineer

Huntsville, AL · On-site

$114K - $150K/yr

Senior Software Engineer, Level 3 OASYS, INC., a Leading-Edge Government contractor, is seeking applicants for a Senior Software Engineer, Level 3 to support our customer in Huntsville, AL. Summary:

Senior Software Engineer

Littleton, CO · On-site

$120K - $150K/yr

Senior Software Engineer, Level 3 OASYS, INC., a Leading-Edge Government contractor, is seeking applicants for a Senior Software Engineer, Level 3 to support our customer in Littleton, CO. Summary:

Software Engineer Level 3

Hanover, MD · On-site

$134K - $162K/yr

Software Engineer Level 3 Software | Hanover, MD | Full Time Position: Software Engineer Level 3 ... Experience mentoring senior and junior engineers * Ability to drive technical strategy and ...

Software Engineer Level 3

Hanover, MD · On-site

$134K - $162K/yr

Software Engineer Level 3 Software | Hanover, MD | Full Time Position: Software Engineer Level 3 ... Experience mentoring senior and junior engineers * Ability to drive technical strategy and ...

Software Database Engineer (Level 3)

Austin, TX · On-site

$113K - $136K/yr

Role: Software Database Engineer (Level 3) Duration: 6+ Months Location: Austin, TX 78752. The working position is Hybrid - On Site and Telework. Summary: The client requires the services of a ...

Job Title Software Engineer Level 3 Location Washington, DC 20032 US (Primary) Category Research, Development, and Engineering Job Type Full-Time Career Level Staff Education Bachelor's Degree Travel ...

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Showing results 1-20

Senior Software Engineer Level 3 information

See salary details

$75.5K

$143.3K

$192K

How much do senior software engineer level 3 jobs pay per year?

As of Jul 11, 2026, the average yearly pay for senior software engineer level 3 in the United States is $143,292.00, according to ZipRecruiter salary data. Most workers in this role earn between $122,500.00 and $161,500.00 per year, depending on experience, location, and employer.

What is a level 3 software engineer?

A Level 3 Software Engineer is a mid-to-senior position that typically involves designing, developing, and maintaining software systems with increased responsibility and independence. They often have several years of experience, proficiency in programming languages, and may mentor junior engineers while contributing to project planning and code reviews.

What is the difference between Senior Software Engineer Level 3 vs Senior Software Engineer Level 2?

CriteriaSenior Software Engineer Level 3Senior Software Engineer Level 2
ExperienceTypically 5+ years of experienceUsually 3-5 years of experience
ResponsibilitiesLeads complex projects, mentors juniors, influences architectureHandles moderate projects, provides guidance to juniors
SkillsAdvanced technical skills, system design, problem-solvingProficient technical skills, coding, debugging
CertificationsOptional, but often includes specialized certificationsOften includes foundational certifications

The main difference between Senior Software Engineer Level 3 and Level 2 lies in experience, scope of responsibilities, and technical expertise. Level 3 engineers typically lead complex projects and mentor others, reflecting a higher level of proficiency and leadership within the team.

What engineer makes $500,000 a year?

Senior Software Engineers at top tech companies or those in specialized roles such as machine learning or infrastructure engineering can earn $500,000 or more annually, often including bonuses, stock options, and other compensation. Achieving this level typically requires extensive experience, advanced skills, and working in high-demand environments with competitive pay structures.

What engineers make $300,000 a year?

Senior Software Engineers at large tech companies or those with specialized skills in areas like machine learning, cloud computing, or cybersecurity can earn $300,000 or more annually. Compensation often includes base salary, bonuses, and stock options, especially in competitive markets or executive-level roles.

How much do L3 software engineers make?

Senior Software Engineer Level 3 positions typically have a salary range between $110,000 and $160,000 annually, depending on location, company size, and experience. Compensation may also include bonuses, stock options, and benefits, especially in competitive tech markets.
More about Senior Software Engineer Level 3 jobs
What cities are hiring for Senior Software Engineer Level 3 jobs? Cities with the most Senior Software Engineer Level 3 job openings:
What are the most commonly searched types of Software Engineer Level 3 jobs? The most popular types of Software Engineer Level 3 jobs are:
What states have the most Senior Software Engineer Level 3 jobs? States with the most job openings for Senior Software Engineer Level 3 jobs include:
Infographic showing various Senior Software Engineer Level 3 job openings in the United States as of July 2026, with employment types broken down into 67% Full Time, and 33% Contract. Highlights an 100% In-person job distribution, with an average salary of $143,292 per year, or $68.9 per hour.
Senior Software Engineer - Level 3

Senior Software Engineer - Level 3

Lockheed Martin

Fort Worth, TX • On-site

$117K - $154K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 18 days ago


Lockheed Martin rating

8.1

Company rating: 8.1 out of 10

Based on 388 frontline employees who took The Breakroom Quiz

34th of 61 rated aerospace companies


Job description


You will be the Senior Software Engineer - Level 3 for the Vehicle Management Software Team which is responsible for developing modular and reusable software for aircraft subsystems.
What You Will Be Doing
As the Senior Software Engineer - Level 3 you will be responsible for advancing software that enables aircraft to fly, working across embedded avionics, ground station development, and mission systems.
"Your responsibilities will include:"
  • Full software lifecycle development spanning avionics services, ground station development, and mission system technologies.
  • Support ground station development for manned and unmanned systems.
  • Develop simulations to aid software development and testing.
  • Interface with software and systems engineers to define requirements for rapid prototypes.
  • Participate in integration and test events.

What's In It For You
We are committed to supporting your work-life balance and overall well-being, offering flexible scheduling options. Learn more about Lockheed Martin's comprehensive benefits package here. Do you want to be part of a company culture that empowers employees to think big, lead with a growth mindset, and make the impossible a reality? We provide the resources and give you the flexibility to enable inspiration and focus - if you have the passion and courage to dream big, work hard, and have fun doing what you love then we want to build a better tomorrow with you.
Who You Are
A collaborative, results-driven software engineer with deep expertise in embedded systems and a passion for aviation. You thrive in fast-paced, multi-site environments and enjoy turning complex requirements into reliable, reusable code. This role offers the chance to influence cutting-edge aircraft platforms and shape the future of aerospace software.
Further Information About This Opportunity
MUST BE A U.S. CITIZEN - This position is located at a facility that requires special access. The selected candidate must possess an active Secret clearance to start.
Basic Qualifications
• 4-year degree in B.S. Computer Science, B.S Computer Engineering or B.S. Electrical Engineering
• Technical leadership and mentoring of small teams
• Experience with C/C++ programming languages
• Experience with Linux or RTOS (real time operating systems) and associated development toolchains
• Experience with developing software for avionics systems
• Experience with the software development process in a team environment (peer reviews, unit testing, configuration management, defect tracking)
• Experience with integrating hardware and software
• Must be comfortable working in a lab environment and understand distributed systems
• Secret with Investigation or CV date within 5 years
Desired skills
• Experience in scripting languages (e.g. python)
• Experience using agile software development tools and methodologies (e.g. Git, JIRA, Jenkins, Confluence, etc.)
• Experience with Modeling and Simulation
• Experience with AFSIM
• Experience with image generators and associated interfaces (e.g., CIGI)
• Experience with frontend development (e.g., Qt)
• Experience with backend development, transport, and messaging protocols, (e.g., UDP, TCP, Multicast, DDS, AMQ, etc.)
• Experience with distributed simulation environments and associated standards (e.g., DIS, HLA, etc.)
• Ability to build/maintain relationships and collaborate effectively with others
• Strong decision making and judgment skills
EEO
Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.
The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.
*
At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work.
With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.
If this sounds like a culture you connect with, you're invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.
Other Important Information
By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.
Work Schedule Information
Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.
National Pay Statement
Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $93,200 - $164,450. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.
(Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.
This position is incentive plan eligible.
Premium Pay Statement
Pay Rate: The annual base salary range for this position in most major metropolitan areas in California, Massachusetts, and New York is $107,300 - $185,840. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.
This position is incentive plan eligible.

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About Lockheed Martin

Sourced by ZipRecruiter

As a global security and aerospace company, the majority of Lockheed Martin's business is with the U.S. Department of Defense and U.S. federal government agencies.The remaining portion of Lockheed Martin's business is comprised of international government and commercial sales of products, services and platforms.

Industry

Manufacturing

Company size

10,000+ Employees

Headquarters location

Bethesda, MD, US

Year founded

1912