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Level 4 Software Developer information

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$48K

$111.8K

$166K

How much do level 4 software developer jobs pay per year?

As of Aug 8, 2026, the average yearly pay for level 4 software developer in the United States is $111,845.00, according to ZipRecruiter salary data. Most workers in this role earn between $90,000.00 and $130,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Level 4 software developer?

To thrive as a Level 4 Software Developer, you need advanced programming skills, deep understanding of software architecture, and significant experience with full software development lifecycles, usually backed by a degree in computer science or a related field. Expertise in tools such as version control systems (like Git), cloud platforms, CI/CD pipelines, and potentially certifications like AWS Certified Developer or Microsoft Certified: Azure Developer are highly valuable. Leadership, effective communication, and problem-solving abilities are crucial soft skills for guiding teams and collaborating across departments. These competencies ensure the delivery of robust, scalable solutions and enable leadership in complex technical environments.

What is the difference between Level 4 Software Developer vs Level 3 Software Developer?

AspectLevel 4 Software DeveloperLevel 3 Software Developer
ExperienceTypically 3-5 years of experienceUsually 1-3 years of experience
ResponsibilitiesDesigns complex features, mentors junior developers, leads small projectsDevelops features, fixes bugs, collaborates with team
SkillsAdvanced coding, problem-solving, some leadership skillsProficient coding, basic problem-solving
CertificationsOptional but beneficial (e.g., certifications in specific technologies)Often not required

In summary, a Level 4 Software Developer typically has more experience, handles more complex tasks, and may mentor others, whereas a Level 3 Software Developer is more focused on core development tasks with less leadership responsibility.

What is a Level 4 software developer?

A Level 4 Software Developer is an experienced professional who has advanced technical skills and typically takes on complex programming tasks, project leadership, and mentoring roles within a development team. They are responsible for designing, developing, testing, and maintaining software systems, often making architectural decisions and guiding junior developers. At this level, developers are expected to have deep knowledge of programming languages, frameworks, and best practices, as well as strong problem-solving and communication skills. They may also contribute to strategic planning and process improvement within their organization.

What are some common challenges faced by Level 4 software developers, and how can they be addressed?

Level 4 Software Developers often encounter challenges such as managing complex technical projects, balancing multiple stakeholder expectations, and mentoring junior team members. Successfully navigating these situations requires strong communication skills, effective time management, and the ability to break down complex problems into manageable tasks. Leveraging agile methodologies and collaborating closely with cross-functional teams can help streamline workflows and ensure project goals are met. Additionally, seeking feedback and participating in continuous learning can support ongoing professional growth.
Level 4 Software Developer jobs near you

Software Engineer Level 4

Base-2 Solutions, LLC

Washington, DC • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 17 days ago

Job description

  • Requisition ID: 3479
  • Standard Title: Software Engineer
  • Required Security Clearance: Top Secret/SCI with CI Polygraph
  • Location: Washington, DC
  • Work Type: On-Site
  • Shift: First
  • Referral Eligibility: Eligible
  • U.S. Citizenship Required? Yes

Position Summary
Base-2 Solutions is seeking a Software Engineer Level 4 to develop, maintain, and enhance complex and diverse software systems supporting mission-focused environments. This role is centered on backend development, data engineering, and API development, with emphasis on building scalable systems using Python and FastAPI, designing and managing PostgreSQL databases, and supporting high-performance integrations across high-speed, high-volume, mission-critical, data-sensitive systems.
Essential Duties and Responsibilities
  • Develop, maintain, and enhance complex and diverse software systems, including processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems, based upon documented requirements.
  • Provide specific input to software component design, including hardware/software trade-offs, software reuse, use of COTS/GOTS in place of new development, and requirements analysis and synthesis from the system level to individual software components.
  • Design, implement, and integrate software applications or perform software engineering tasks.
  • Utilize software engineering and design methodologies appropriate to the development, integration, and production environment.
  • Ensure efficient delivery of software engineering capabilities using industry standards and repeatable processes.
  • Mitigate risks, control costs and schedule variance, and effectively manage large-scale, integrated software projects.
  • Review and test software components for adherence to design requirements and document test results.
Required Qualifications
  • Active TS/SCI with CI Polygraph.
  • Demonstrated experience as a backend developer.
  • Demonstrated experience in data engineering and API development.
  • Experience building scalable systems with Python and FastAPI.
  • Experience designing and managing PostgreSQL databases with efficient SQL and indexing strategies.
  • Proficiency in Python.
  • Proficiency in FastAPI.
  • Proficiency in PostgreSQL.
  • Proficiency in Elasticsearch.
  • Experience building high-performance API connections between high-speed, high-volume, mission-critical, data-sensitive systems.
Preferred Qualifications
  • Experience supporting processing-intensive analytics environments.
  • Experience working with extremely large data sets.
  • Experience supporting real-time systems.
  • Experience contributing to software design decisions involving software reuse, COTS/GOTS, and system-to-component requirements analysis.
Required Education and Experience Equivalency
  • High School Diploma/GED with 13 years of experience.
  • Associates Degree with 11 years of experience.
  • Bachelors' Degree with 9 years of experience.
  • Masters' Degree with 7 years of experience.
  • PhD with 5 years of experience.
Required Certifications
  • None specified.
Required Security Clearance
  • Active TS/SCI with CI Polygraph.

Pay & Benefit Highlights
Compensation
  • Competitive fixed salary or hourly pay (based on experience, skills, location, and internal equity).
  • Employee referral bonuses up to $10,000 per hired referral.
  • Additional bonus opportunities for exceptional performance and contributions to business development and company growth (role-dependent).
Health
  • 100% company-paid medical premiums for employees and eligible dependents.
  • Choose from multiple plan options with CareFirst, Kaiser, and UnitedHealthcare, including PPO, POS, HMO, and HSA-compatible plans.
  • 100% company-paid dental premiums for employees and eligible dependents.
  • 100% company-paid vision premiums for employees and eligible dependents.
Income Protection
  • 100% company-paid premiums for short-term disability.
  • 100% company-paid premiums for long-term disability.
  • 100% company-paid premiums for accidental death & dismemberment (AD&D).
  • 100% company-paid premiums for life insurance up to $200,000.
Retirement
  • 401(k) with immediate vesting: 4% company match plus a 4% non-elective company contribution (8% total).
  • 401(k) pre-tax and Roth options.
Leave
  • Up to 20 days of flexible paid time off (PTO).
  • 11 paid floating holidays.
Work-Life Balance
  • Flexible work schedules, including flex time and compressed work periods (contract and project-dependent).

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