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Senior Software Engineer Level 3 Jobs (NOW HIRING)

Senior Software Engineer

Huntsville, AL ยท Hybrid

$114.10K - $150.50K/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:

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Senior Software Engineer

Littleton, CO ยท Hybrid

$120.20K - $158.40K/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:

New

Senior Software Engineer

Littleton, CO ยท 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:

New

Senior Software Engineer

Littleton, CO ยท Hybrid

$120.20K - $158.40K/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:

New

Senior Software Engineer

Littleton, CO ยท 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:

New

Software Engineer Level 3

Hanover, MD ยท 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 ยท 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 ยท On-site

$113.50K - $136.30K/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 ...

Senior Software Engineer, Level 3

Littleton, CO ยท On-site

$124.80K - $164.50K/yr

Space Protection Programs is seeking an experienced Software Engineer who can guide a team through complex mission software development lifecycles. Candidate must have the ability to take ownership ...

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Senior Software Engineer Level 3 information

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$75.5K

$143.3K

$192K

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

As of May 31, 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 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 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:

Senior Software Engineer

OASYS

Huntsville, AL โ€ข Hybrid

$114.10K - $150.50K/yr

Full-time

Dental, Vision, Retirement, PTO

Posted yesterday


Job description

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: OASYS, INC. is seeking a full-time Software Engineer. In this role, you will support the software engineering lifecycle following the program Software Development Plan (SDP) to include requirements analysis, object-oriented analysis & design, code & unit test, integration, and support to formal test/delivery. The successful candidate will have experience and/or knowledge of languages such as C or C++. Must be a US Citizen; this position will require government security clearance prior to starting. This position is located at a facility that requires special access. Basic Qualifications: -Experience with programming languages such as C, C++ --Experience or classroom knowledge with embedded software/hardware --Bachelor's degree in computer science, Aerospace Engineering or other related degree program from an accredited college/university

Desired Skills: --Knowledge of Agile Software Development --Ability to work in a collaborative and team-based environment --Excellent written and verbal communication skills --Knowledge of Model Base Systems Engineering (MBSE) -- Previous experience designing to software requirements -- Experience with full software life cycle development including SW design, architecture and integration & test

Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.

Clearance Level: Secret

Other Important Information You Should Know Ability to Work Remotely: Onsite Full-time: The work associated with this position will be performed onsite.

Schedule for this Position:9x80 every other Friday off

About OASYS, INC.: Located in Huntsville, Alabama, OASYS, INC. is a technology services and products company dedicated to delivering the right solutions to our government and commercial clients. Our innovative solutions combined with today's technology and our subject matter expertise help to provide full lifecycle support for our client's needs.

Benefits: OASYS, INC. offers a robust benefit plan to include: BC/BS of Alabama Heath & Dental, VSP Vision, Employee Stock Ownership Plan (ESOP), 401-K with Matching, Flexible Spending Account, Tuition Reimbursement, Holidays, Vacation, Short-term/Long-term Disability.

www.oasys-incorporated.com

EOE AA M/F/Vet/Disability Equal Employment Opportunity is the Law: http://www1.eeoc.gov/employers/upload/eeoc_self_print_poster.pdf