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Software Developer Iii Jobs (NOW HIRING)

Candidate Qualification Summary, Candidate Acknowledgment (RTR), Skill Matrix and References (3) ... Two software developers are being solicited by TDI to perform work on legacy modernization projects ...

The Opportunity The Software Developer III is a senior-level contributor responsible for designing, building, and maintaining scalable, high-performance applications. This role requires expertise in ...

... Software Developer in Salesforce technology. The Worker will apply their expert knowledge of ... Business Administration, or related discipline. * 3+ Salesforce Certified - Salesforce Admin and ...

Software Developer III

Poway, CA · On-site

$98K - $171K/yr

We are seeking a highly skilled and motivated Senior Engineer to design, develop, and enhance UAV autopilot software. As part of GA-ASI, you'll work on groundbreaking projects that directly support ...

... Software Developer-related occupation. Position requires: 1. Terraform 2. Kubernetes 3. Java 4. Python 5. Cloud Computing 6. Quartz based Job Schedulers 7. Cloud native technologies serverless ...

Candidate Qualification Summary, Candidate Acknowledgment (RTR), Skill Matrix and References (3) ... Two software developers are being solicited by TDI to perform work on legacy modernization projects ...

Software Developer III

Aurora, CO · On-site

$98K - $171K/yr

Our users love our software. Our customers come back because we deliver. And our engineers stay because they get to work on real problems, with real impact, alongside people who care. If you're ...

As a member of the software engineering division, you will assist in defining and developing ... 3. Life insurance and AD&D 4. Supplemental life insurance (Employee/Spouse/Child) 5. Health care ...

... guiding other engineers in the team. The ideal candidate will own the software design and ... 3 - 5 years of total experience in software development Demonstrated ability to write great code ...

... Software Developer in Salesforce technology. The Worker will apply their expert knowledge of ... Business Administration, or related discipline. * 3+ Salesforce Certified - Salesforce Admin and ...

Our users love our software. Our customers come back because we deliver. And our engineers stay because they get to work on real problems, with real impact, alongside people who care. If you're ...

We are seeking a highly skilled and motivated Senior Engineer to design, develop, and enhance UAV autopilot software. As part of GA-ASI, you'll work on groundbreaking projects that directly support ...

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Software Developer III information

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$48K

$111.8K

$166K

How much do software developer iii jobs pay per year?

As of Jul 17, 2026, the average yearly pay for software developer iii 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.

How does a Software Developer III typically collaborate with cross-functional teams during a project?

As a Software Developer III, you’ll often collaborate closely with product managers, designers, QA engineers, and other developers to deliver high-quality software solutions. Your role may involve leading technical discussions, reviewing code from peers, and providing mentorship to junior developers. Effective communication and the ability to translate technical concepts to non-technical stakeholders are essential, as you'll frequently participate in sprint planning, code reviews, and troubleshooting sessions. This collaborative environment fosters both individual growth and the overall success of the project.

What is a software developer 3?

A Software Developer III is a senior-level software engineer responsible for designing, developing, and maintaining complex software applications. They often have several years of experience, advanced coding skills, and may lead projects or mentor junior developers. Proficiency in programming languages, software development tools, and understanding of system architecture are typically required.

What is L1, L2, L3, and L4 developer?

In software development, L1, L2, L3, and L4 often refer to different levels of developer seniority or expertise, with L1 typically being entry-level and L4 representing senior or lead roles. These levels help organizations categorize skills, experience, and responsibilities, often influencing salary, expectations, and career progression. For a Software Developer III position, it usually corresponds to an L3 or senior-level role requiring advanced coding, problem-solving, and project management skills.

What are the key skills and qualifications needed to thrive as a Software Developer III, and why are they important?

To thrive as a Software Developer III, you need advanced proficiency in programming languages, software architecture, and problem-solving, typically supported by a bachelor's degree in computer science or related field and several years of professional experience. Familiarity with version control systems (like Git), cloud platforms (such as AWS or Azure), and relevant certifications (e.g., AWS Certified Developer) are often required. Strong communication, leadership, and collaboration skills help you work effectively within teams and mentor junior developers. These skills and qualities are essential for delivering complex software solutions, driving innovation, and maintaining high development standards.

What is the difference between Software Developer Iii vs Software Developer Iv?

CriteriaSoftware Developer IiiSoftware Developer Iv
Required CredentialsBachelor's degree in Computer Science or related field; 3-5 years experienceBachelor's or Master's degree; 4-6 years experience
Work EnvironmentTeam-based software development, project-focusedAdvanced projects, mentorship roles, complex problem-solving
Employer & Industry UsageTech companies, software firms, startupsLarge corporations, enterprise software, tech giants
Common Search & Comparison IntentUnderstanding mid-level developer rolesClarifying seniority and responsibilities

The main difference between Software Developer Iii and Software Developer Iv lies in experience, complexity of tasks, and responsibilities. Software Developer Iv typically has more years of experience, handles more complex projects, and may mentor junior developers. Both roles require similar educational backgrounds, but the Iv level is often associated with higher technical expertise and leadership within development teams.

What are Software Developer III positions?

A Software Developer III is an experienced software engineer who is responsible for designing, developing, testing, and maintaining software applications. This role typically requires several years of professional experience and a deep understanding of programming languages, software architecture, and development methodologies. Software Developer III professionals often mentor junior team members, lead technical projects, and collaborate closely with cross-functional teams to deliver high-quality software solutions. They are expected to solve complex problems and contribute to the continuous improvement of development processes.

What engineers make $300,000 a year?

Senior software engineers, especially those with extensive experience, specialized skills in areas like machine learning or cloud computing, and working at large tech companies or in high-cost-of-living regions, can earn $300,000 or more annually. Compensation often includes base salary, bonuses, and stock options, and reaching this level typically requires advanced expertise and leadership responsibilities.

What engineer makes $500,000 a year?

Senior software engineers, especially those in high-paying industries like finance or technology, can earn $500,000 or more annually, often through base salary, bonuses, and stock options. Achieving this level typically requires extensive experience, specialized skills, and working at large tech companies or startups with significant equity offerings.
More about Software Developer III jobs
What cities are hiring for Software Developer Iii jobs? Cities with the most Software Developer Iii job openings:
What states have the most Software Developer Iii jobs? States with the most job openings for Software Developer Iii jobs include:
Infographic showing various Software Developer Iii job openings in the United States as of July 2026, with employment types broken down into 85% Full Time, 3% Part Time, 1% Temporary, and 11% Contract. Highlights an 82% Physical, 3% Hybrid, and 15% Remote job distribution, with an average salary of $111,845 per year, or $53.8 per hour.
Software Developer III

Software Developer III

Geosyntec Consultants, Inc.

Los Alamos, NM • Remote

Contractor

Re-posted 12 days ago


Job description

Longenecker & Associates (L&A), a Geosyntec Company, is a trusted partner enabling critical missions across the U.S. Department of Energy (DOE) complex for more than 30 years. We contribute to DOE’s nuclear security and environmental remediation enterprise by providing the highest-caliber staff and experts. We are seeking a motivated Software Developer III to contribute to our mission supporting our work at Los Alamos National Lab in Los Alamos, NM.

Geosyntec is an innovative, international engineering and consulting firm serving private and public-sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure. Our engineers, scientists, technical and project employees serve our clients from offices across the world. Ranked by ENR as one of the top environmental engineering design firms, Geosyntec is internationally known for its technical leadership, broad experience, and exceptional client service.

We invest in our people.  Each employee is unique, and your career at Geosyntec will be too.  We offer competitive pay and benefits, and well-being programs to support you and your family.

To Learn More Visit: http://www.geosyntec.com/careers/.


The main duties include, but are not limited to:

  • Manage and direct the daily tasks required to perform ongoing support of design, construction, startup and/or operations/ maintenance activities of complex high technology systems or projects;
  • Render expert opinions on engineering and technical issues, provides recommendations to project design and construction teams in specific areas of expertise;
  • Provide independent reviews and assessments in areas of specialized expertise and provides guidance to project teams in delivering results on projects of comp le high- technology nature;
  • Interface with management personnel and customer representatives;
  • Develop and enforces work standards, assigns schedules, reviews work quality, communicates goals, objectives, and policies of the organization to subordinates;
  • Provide leadership for the project team, coordinates with the functional organizations, and supervises senior personnel within the project organization;
  • Deploy, configure, and maintain containerized environments using Red Hat OpenShift;
  • Install, configure, and support Strategy Customer Managed Cloud (CMC) software Integrate CMC components within OpenShift-based infrastructure;
  • Perform system tuning, patching, upgrades, and operational support Troubleshoot deployment, configuration, and runtime issues across the stack;
  • Collaborate with technical teams to ensure system reliability, performance, and compliance Mentor LANL staff on OpenShift operations, including best practices for deployment, maintenance, and troubleshooting (“care and feeding” of container platforms); and
  • Develop and maintain clear technical documentation and knowledge transfer materials.

  • BS/BA degree in Engineering, Science, or Business Management. (required)

  • At least seven (7) years of directly applicable experience in a specialized technical field; or equivalent combination of education and experience. (required)
  • Demonstrated hands-on experience with Red Hat OpenShift (deployment, administration, and operations).
  • Proven experience installing and configuring Strategy Customer Managed Cloud (CMC) software.
  • Strong understanding of containerization, Kubernetes concepts, and platform operations.
  • Experience with Linux system administration.
  • Due to federal contract security requirements, candidates must be able to successfully pass a federal background investigation to secure and maintain DOE Q security clearance. (required)
  • Due to federal contract security requirements, this position requires U.S. Citizenship. (required)
  • Health & Safety training, medical monitoring, and client-driven drug and background testing. (required)

Please note that marijuana remains a Schedule III controlled substance under Federal Law. Federal contractors must follow Federal drug-free workplace rules, which prohibit marijuana use, even if medical or recreational use is permitted under State Law.  

PREFERRED QUALIFICATIONS & LOCATION DETAILS:

  • Experience using OpenShift and Strategy CMC together in a production environment,
  • Prior work in DOE, federal, or other government-regulated environments
  • Familiarity with security, compliance, and configuration management requirements in regulated systems
  • Current or prior DOE Q Clearance,
  • Previous experience on DOE sites and programs.
  • Remote Position – No Travel Required.
  • Los Alamos National Lab
  • 5/8 Schedule

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