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Mainframe Developer Jobs in Seattle, WA (NOW HIRING)

DevSelect

.NET/Software Developer

Redmond, WA · On-site +1

Title: .NET/Software Developer Location: Redmond, WA Openings: 1 Type: Long-term contract Looking for a passionate individual that can thrive in a fast paced environment and can work well in a team ...

IonQ

Senior Director, Developer Ecosystem

Bothell, WA · On-site

$61 - $80.50/hr

As Senior Director of Developer Ecosystem, you will lead the strategy and execution of IonQ's developer relations, open-source contributions and consortia, and technical and scientific community ...

TriOptus LLC

Sr. .Net Developer

Redmond, WA · On-site

$62 - $81.75/hr

Role: Dot net with Azure Developer Must: .net, C# and Azure platform services Location: Redmond, WA Skills: Cloud Services, Azure SQL, Cosmos DB, Messaging. Responsibilities: As an Engineer you will ...

SRI Tech solutions Inc

Sr. Developer

Redmond, WA · On-site

$61 - $80.75/hr

Position: Sr. Developer Location: Redmond, WA Duration: 6 Months + Description: Seeking a Sr. Developer who can work independently on project deliverables. Skills Required: * 7+ Years of experience ...

Oracle

Software Developer 5

Seattle, WA · On-site

OCI Logging and Monitoring serve as foundational platforms used by OCI engineering teams to operate and troubleshoot hundreds of cloud services while also enabling customers to monitor, analyze, and ...

Oracle

Software Developer 5

Seattle, WA

We are looking for a senior IC5 software engineer with deep Kubernetes expertise, required cloud infrastructure experience, and a strong distributed systems background. This is a high-impact ...

Oracle Corporation

Software Developer 5

Seattle, WA · On-site

We are looking for a senior IC5 software engineer with deep Kubernetes expertise, required cloud infrastructure experience, and a strong distributed systems background. This is a high-impact ...

Collabera

Applications Developer

Bellevue, WA

This position will be a member of an Agile development team using XP programming principles, including CI, TDD and paired programming. Technology stack is C# .Net, Javascript, ReactJS/Flux, MS SQL ...

Oracle

Software Developer 5

Seattle, WA · On-site

We are looking for a senior IC5 software engineer with deep Kubernetes expertise, required cloud infrastructure experience, and a strong distributed systems background. This is a high-impact ...

SRI Tech solutions Inc

Sr. Developer

Redmond, WA · On-site

$61 - $80.75/hr

Position: Sr. Developer Location: Redmond, WA Duration: 6 Months + Description: Seeking a Sr. Developer who can work independently on project deliverables. Skills Required: * 7+ Years of experience ...

IMA Financial Group

OutSystems Developer

Bellevue, WA · On-site

$100K - $130K/yr

OutSystems Developer Certification. * Experience within the Insurance, Risk Management, Brokerage, or Financial Services industries. * Experience with Azure services and cloud-based application ...

IMA Financial Group

OutSystems Developer

Bellevue, WA · On-site

$100K - $130K/yr

OutSystems Developer Certification. * Experience within the Insurance, Risk Management, Brokerage, or Financial Services industries. * Experience with Azure services and cloud-based application ...

Career Connections Inc

EPM Developer (Pigment)

Seattle, WA · Remote

$125K - $150K/hr

EPM Developer (Pigment) - Consulting Firm Location: Remote (US and Canada Based)** Employment Type: Full-Time Function: Enterprise Performance Management (EPM), FP amp;A Technology About the Company ...

Nastech Global

RPA BluePrism Developer

Seattle, WA · On-site

Job Title: RPA BluePrism Developer Location : Seattle,WA, Plano, TX, St. Louis, MO (onsite) Job Type: Full time Robotic Process Automation (RPA) Blue Prism Development and solution designing ...

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All JobsMainframe Developer JobsMainframe Developer Jobs in Seattle, WA

Mainframe Developer information

See Seattle, WA salary details

$11

$60

$82

How much do mainframe developer jobs pay per hour?

As of Aug 12, 2026, the average hourly pay for mainframe developer in Seattle, WA is $60.75, according to ZipRecruiter salary data. Most workers in this role earn between $53.61 and $68.94 per hour, depending on experience, location, and employer.

Is a mainframe developer hard to learn?

Mainframe developers typically need to learn specialized programming languages like COBOL and understand mainframe environments, which can have a steep learning curve for beginners. However, with prior programming experience and training, acquiring the necessary skills is achievable, and many employers offer on-the-job training or certification programs.

What is the difference between Mainframe Developer vs Mainframe Analyst?

AspectMainframe DeveloperMainframe Analyst
Primary RoleDesigning, coding, and testing mainframe applicationsAnalyzing and maintaining existing mainframe systems
Skills & CertificationsCOBOL, JCL, DB2, certifications like IBM Certified DeveloperCOBOL, JCL, system analysis, troubleshooting skills
Work EnvironmentDevelopment teams, coding in mainframe environmentsSupport teams, system analysis, user support
Industry UsageFinancial services, insurance, government agenciesFinancial institutions, healthcare, government agencies

While Mainframe Developers focus on creating and implementing mainframe applications, Mainframe Analysts primarily analyze, troubleshoot, and maintain existing systems. Both roles require similar technical skills and often work within the same industries, but their core responsibilities differ in development versus support and analysis.

What are some common challenges mainframe developers face when integrating legacy systems with modern applications?

Mainframe Developers often encounter challenges such as ensuring compatibility between legacy systems and newer technologies, managing data migration without disrupting business operations, and maintaining the security of sensitive data. Effective communication with cross-functional teams, such as application developers and infrastructure engineers, is essential to address these challenges. Staying updated on both mainframe and modern programming practices helps ease integration and ensures long-term system reliability.

Is a mainframe developer a good career?

A mainframe developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical operations. The role offers stable employment, competitive salaries, and requires skills in languages like COBOL and tools such as JCL. Demand remains steady in industries like finance and government, making it a viable career choice for those with relevant expertise.

What is a mainframe developer?

Mainframe Developers are specialized software engineers who design, develop, maintain, and troubleshoot applications on mainframe computer systems, such as IBM's z/OS. They typically work with languages like COBOL, JCL, and CICS, and are responsible for ensuring the performance, security, and reliability of mission-critical business applications. Mainframe Developers are commonly employed in industries like banking, insurance, and government, where large-scale, high-volume transaction processing is essential.

Is mainframe developer still in demand?

Mainframe developers are still in demand in industries such as finance, government, and insurance that rely on legacy systems. They typically work with COBOL, JCL, and mainframe environments, and demand remains steady due to the ongoing need for system maintenance and integration. However, the overall job market is gradually shifting toward modern technologies, so acquiring skills in related areas can enhance job prospects.

What are the key skills and qualifications needed to thrive as a mainframe developer?

To thrive as a Mainframe Developer, you need expertise in programming languages such as COBOL, JCL, and SQL, along with a strong understanding of mainframe operating systems and batch processing concepts. Familiarity with tools like IBM z/OS, DB2, CICS, and version control systems is typically required, and certifications from IBM or related organizations can be beneficial. Strong problem-solving abilities, attention to detail, and effective communication skills help Mainframe Developers excel in troubleshooting and collaborating with cross-functional teams. These skills are crucial for maintaining, optimizing, and modernizing legacy systems that are vital to many large organizations’ operations.
What are the most commonly searched types of Mainframe Developer jobs in Seattle, WA? The most popular types of Mainframe Developer jobs in Seattle, WA are:
What are popular job titles related to Mainframe Developer jobs in Seattle, WA? For Mainframe Developer jobs in Seattle, WA, the most frequently searched job titles are:
What job categories do people searching Mainframe Developer jobs in Seattle, WA look for? The top searched job categories for Mainframe Developer jobs in Seattle, WA are:
Mainframe Developer jobs near you
Infographic showing various Mainframe Developer job openings in Seattle, WA as of August 2026, with employment types broken down into 80% Full Time, 5% Part Time, and 15% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution, with an average salary of $126,351 per year, or $60.7 per hour.

.NET/Software Developer

DevSelect

Redmond, WA • On-site, Remote

Full-time

Re-posted 14 days ago

Job description

Title: .NET/Software Developer
Location: Redmond, WA
Openings: 1
Type: Long-term contract
Looking for a passionate individual that can thrive in a fast paced environment and can work well in a team environment.
The Engineering on this work spreads across multiple services. Mainly, Domains Manager and UFS (URL Forwarding Service). Here are the things a developer is expected to know, or be ready and passionate about learning them without too much help from others.
Azure
  • SQL
  • Keyvault
  • Active Directory Graph API client integration
  • Cloud Services (Web/Worker Role)
  • Virtual Machines
  • Powershell (Keyvault/Deployment/Operations)

.NET
  • ASP.NET Web Applications
  • Windows Services (we have windows services that run on UFS virtual machines for syncing data to local files and also storing domain hit count information)
  • C#
  • Entity Framework
  • Javascript/JQuery (lots of javascript in domains manager source code)
  • AJAX
  • Linq
  • Threading
  • MVVM
  • MVC
  • Web API
  • Solid HTML
  • CSS selectors
  • Consumption of 3rd party APIs via Http request/response
  • Knowledge of how to setup a local web site/SQL database on a workstation.

VSO
  • All of our work is managed in Visual studio online. Would be great if the candidate has VSO experience for managing project work!

  • Source code management - Git

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