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Senior Software Engineer Level 3 Jobs (NOW HIRING)

... Software Engineer Level 3 * 8 years with Bachelors, 6 years with Masters, 4 years with PhD with an additional 4 years experience may be considered in lieu of degree for Software Engineer Level 4 * ...

New

$140 - $190/hr

Software Engineer Level 3, Clearance Required - TS/SCI w/Polygraph Please note, this position requires all candidates to currently possess an active Top-Secret SCI Clearance with a Polygraph. This ...

New

Software Engineer Level 3, Clearance Required - TS/SCI w/Polygraph Please note, this position requires all candidates to currently possess an active Top-Secret SCI Clearance with a Polygraph . This ...

Software Engineer Level 3

Hanover, MD · On-site

$241K - $326K/yr

Software Engineer Level 3, Clearance Required - TS/SCI w/Polygraph Please note, this position requires all candidates to currently possess an active Top-Secret SCI Clearance with a Polygraph . This ...

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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 Aug 21, 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.

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 August 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.

Software Engineer - Mid-Level & Senior-Level (2 Openings)

ActioNet

Vienna, VA

$199K/yr

Full-time

Posted 10 days ago


Job description

Description

Software Engineer - Mid-Level & Senior-Level (2 Openings)

Summary:
We are hiring for two (2) Software Engineer positions at the Mid-Level and Senior-Level. These roles will support the design, development, implementation, and maintenance of enterprise-scale, dynamic, interactive web applications. The ideal candidates will have strong full-stack development experience and the ability to translate business requirements and technical specifications into secure, scalable, high-performing applications. Experience with Java and/or .NET, Oracle, Microsoft SQL Server, web services, APIs, cloud computing, application security, and software lifecycle management is highly valued.

Q Clearance:
Q Clearance is required for approximately 75% of staff in these positions. Candidates without an active Q Clearance may be considered for positions that do not require Q access.

Location:
Washington, DC or Gaithersburg, MD

Salary:
Up to $199,000, commensurate with experience and position level

Education:
Bachelor's degree from an accredited university or college in a technical discipline such as Computer Science, Information Technology, Software Engineering, or a related field.

Mid-Level Software Engineer (Level III):

  • Minimum of five (5) years of software engineering experience as a full-stack developer.
  • Experience designing and implementing enterprise-scale, dynamic, interactive web applications based on business requirements and technical specifications.
  • Experience developing complex applications using programming languages, frameworks, and application programming interfaces (APIs).
  • Experience developing applications that support online data processing and reporting systems.
  • Experience integrating web accessibility, data security, and authentication standards into applications.
  • Experience designing and developing web services.
  • Experience analyzing and resolving database, architecture, and application development issues.
  • Experience with software lifecycle management, including automated testing, documentation, code versioning, change management, release management, testing, quality assurance, and configuration management.
  • Experience with cloud computing and cloud-based application environments.
  • Experience developing and maintaining applications using technologies such as Oracle, Microsoft SQL Server, Java, and/or .NET.
  • Strong troubleshooting, analytical, and problem-solving skills.

Senior Software Engineer (Level IV):

  • Minimum of seven (7) years of software engineering experience as a full-stack developer.
  • Extensive experience designing and implementing enterprise-scale, dynamic, interactive web applications based on business requirements and technical specifications.
  • Advanced experience developing complex applications using programming languages, frameworks, and APIs to support online data processing and reporting systems.
  • Experience integrating web accessibility, application security, data protection, and authentication standards.
  • Strong experience designing web services and resolving complex database, architecture, integration, and application development issues.
  • Experience consulting with users to understand current operating procedures and clarify application and program objectives.
  • Ability to provide technical consultation and guidance on complex software development projects.
  • Recognized as a senior-level technical contributor or specialist capable of addressing complex technical challenges.
  • Extensive experience with software lifecycle management, including automated testing, documentation, code versioning, change management, release management, quality assurance, testing, and configuration management.
  • Strong experience with cloud computing and cloud-based application architectures.
  • Experience developing and maintaining enterprise applications using Oracle, Microsoft SQL Server, Java, and/or .NET.
  • Ability to provide technical guidance and mentorship to development teams and contribute to architectural and technical decisions.

Preferred Certifications:

  • AWS Certified Developer - Associate
  • AWS Certified Solutions Architect - Associate or Professional
  • Microsoft Certified: Azure Developer Associate
  • Microsoft Certified: Azure Solutions Architect Expert
  • Oracle Certified Professional
  • Microsoft Certified: Azure Database Administrator Associate
  • Certified Kubernetes Application Developer (CKAD)
  • Certified Kubernetes Administrator (CKA)
  • Certified ScrumMaster (CSM)
  • PMI Agile Certified Practitioner (PMI-ACP)
  • TOGAF Certification
  • Certified Information Systems Security Professional (CISSP) - preferred for Senior-Level candidates

ActioNet is a CMMI-DEV Level 4, CMMI-SVC Level 4, ISO 20000, ISO 27001, ISO 9001, HDI-certified, woman-owned IT Solutions Provider with strong qualifications and expertise in Agile Software Engineering, Cloud Solutions, Cyber Security and IT Managed Services.   With 24+ years of stellar past performance, ActioNet is the premier Trusted Innogrator! 

Why ActioNet? 
At ActioNet, our Passion for Quality is at the heart of everything we do: 
  • We are committed to make ActioNet a great place to work and continue to invest in our ActioNeters 
  • We are committed to our customers by driving and sustaining Service Delivery Excellence 
  • We are committed to give back to our Community, help others and make the world a better place for our next generation 
ActioNet is proud to be named as a Top Workplace for the ninth year in a row (2014 - 2022).   We have 98% of Customer retention rate.  We are passionate about the inspirational missions of our customers and we entrust our employees and teams to deliver exceptional performance to enable the safety, security, health and well-being of our nation.
What's in It For You?
As an ActioNeter, you get to be part of exceptional team and a corporate culture that nurtures mutual success for our customers, employees and our communities. We give you the tools to be successful; all you need to do is bring your best ideas, your energy and a desire to develop your skills, experience and career.  Are you ready to make a difference? 
ActioNet is an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. 
********Direct Applicants, only.  No Agencies, No third-party recruiters, please********Â