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Mainframe Developer Jobs in Seattle, WA (NOW HIRING)

Keylent Inc

Senior Mainframe Engineer

Renton, WA · On-site

Senior Mainframe Engineer MAHIN-JOB-32525 Location: RENTON Job Title: Senior Mainframe Engineer About PACCAR PACCAR, Inc. is a Fortune 500 company established in 1905 and is recognized as a global ...

Maintec Technologies

Mainframe System Engineer

Seattle, WA · On-site

$62.75 - $79.75/hr

Mainframe System Engineer * Location-Seattle, Washington (Initial Remote) * Position type: C2H * Rate: Open The Senior Mainframe System Engineer supports the mainframe infrastructure focusing on z/OS ...

Diverse Lynx

Mainframe Lead

Seattle, WA · On-site

Manage and mentor a team of mainframe developers, providing direction and fostering skill development. * Define and enforce architectural standards; participate in and lead design sessions for ...

Deloitte

Automation Engineer

Bellevue, WA · Hybrid

Collaborate closely with Java developers, Mainframe engineers, product managers, and project leaders to align automation strategy with business and delivery priorities. * Document automation ...

Deloitte

Senior Automation Engineer

Bellevue, WA · Hybrid

$117K - $154K/yr

Collaborate closely with Java developers, Mainframe engineers, product managers, and project leaders to align automation strategy with business and delivery priorities. * Document automation ...

1 point system

C++ Developer(Senior Level)

Redmond, WA · On-site

$55 - $74/hr

The main function of a Software Engineer is to design, develop, implement, test, and maintain business and computer applications software or specialized utility programs including mainframe and ...

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Saxon Global

Data/Cloud Engineer

Seattle, WA · On-site

$130K - $156K/yr

Data/Cloud Engineer Location - Seattle, WA JD is Same for both roles: Role Summary: The Data/Cloud ... drops, and mainframe extracts. * Define source-specific ingestion patterns (batch windows, CDC ...

Tekfortune Inc

Data/Cloud Engineer

Seattle, WA · On-site

$130K - $156K/yr

Data/Cloud Engineer Location: Seattle, WA Duration: 6 months Required Skills: Cloud The Data/Cloud ... Experience with mainframe data extraction and integration. * Familiarity with Apache Kafka ...

Tekfortune Inc

Sr. Data/Cloud Engineer

Seattle, WA · On-site

$130K - $156K/yr

Role: Sr. Data/Cloud Engineer Location: Seattle, WA Duration: 6 months Required Skills: Data The ... Experience with mainframe data extraction and integration. * Familiarity with Apache Kafka ...

United IT

Senior Enterprise Architect

Bellevue, WA · On-site

Mentor solution architects and engineering teams on best practices and modernization techniques ... IBM mainframes, COBOL, EBCDIC, VSAM, Unix/Linux environments. * Proven experience in designing and ...

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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 Jul 1, 2026, the average hourly pay for mainframe developer in Seattle, WA is $60.74, 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.

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.

What are Mainframe Developers?

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.

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

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 June 2026, with employment types broken down into 83% Full Time, and 17% Contract. Highlights an 83% Physical, 6% Hybrid, and 11% Remote job distribution, with an average salary of $126,349 per year, or $60.7 per hour.
Senior Mainframe Engineer

Senior Mainframe Engineer

Keylent Inc

Renton, WA • On-site

Other

Posted 5 days ago

Job description

Senior Mainframe Engineer MAHIN-JOB-32525
Location: RENTON
Job Title: Senior Mainframe Engineer
About PACCAR PACCAR, Inc. is a Fortune 500 company established in 1905 and is recognized as a global leader in the commercial vehicle, financial, and customer service fields. PACCAR is a global technology leader in the design, manufacture, and customer support of high quality light , medium and heavy duty trucks under its internationally recognized brands Kenworth, Peterbilt and DAF nameplates. PACCAR designs and manufactures advanced diesel engines and provides customized financial services, information technology and truck parts related to its principal business. Your next career move is waiting at PACCAR whether you want to design the transportation technology of tomorrow, support the staff functions of a dynamic, international leader, or build our excellent products and services. Join the PACCAR team today! The Role This position is responsible for the development and maintenance of PACCAR's Mainframe applications. The development and maintenance activity predominantly uses COBOL, IMS, DB2, and CICS. About the Team ¿As a Senior Mainframe Engineer, you will work with a talented PACCAR mainframe team that supports some of the most critical processes within the company for building medium and heavy duty trucks across North America. Job Responsibilities This position will: ¿ Work with customers to define, design and propose alternative solutions in response to changing business needs. ¿ Work with customers to troubleshoot reported issues. ¿ Provide system administration support. ¿ Must be able and willing to work weekends and evenings to support on call responsibilities as needed is required. Required Experience & Skills ¿ Five years software engineering experience including code development, scripting, workflow and data mapping. ¿ Five years mainframe support experience: COBOL, IMS (DB), DB2, CICS, JCL ¿ Advanced computer system skills including use of word processing, databases, and spreadsheets. ¿ Strong verbal/written communication skills. ¿ Demonstrated ability to work independently and/or as a team member. ¿ Strong organizational, interpersonal and analytical skills. ¿ PACCAR systems experience a plus Education (List required and/or preferred education) ¿ A four year degree in Information Systems, Computer Science or related field desired. Physical Demands ¿ Sitting and standing for prolonged periods of time Diversity & Inclusion PACCAR is an Equal Opportunity Employer/Protected Veteran/Disability corporation. Having a diverse and inclusive work environment ensures PACCAR has the talent needed to conduct business today and in the future by leveraging different backgrounds, skills, and viewpoints. We believe diversity in the workplace increases innovation, results in better decisions, and increases employee engagement. PACCAR¿s IT Division promotes Diversity and Inclusion through mentorship, events, celebrations, and affinity groups. The IT Division has an active Diversity Council and supports initiatives and activities for all. PACCAR supports women through the PACCAR Women¿s Association (PWA), Women in Trucking, and Women in Technology International (WITI). Educational awareness programs such as Unconscious Bias, Male Allyship and Inclusive Leadership are just a few of many trainings offered. PACCAR is a supporter of PRIDE and celebrates many different multi cultural events.
Keylent logo

About Keylent

Sourced by ZipRecruiter

Keylent Inc, based in Wilmington, DE, US, operates in the dynamic IT services and solutions industry. Their official platform, keylent.com, further details their robust suite of services which primarily comprise software consulting, quality assurance, project management, and business intelligence. Keylent Inc has been an integral part of the industry since its inception, serving diverse clients with their specialized, innovative IT solutions. This customer-centric firm is founded on the core values of reliability, integrity, and zealous innovation. Their mission is to empower businesses in navigating the complex technological landscape with ease, efficiency, and confidence. Notably, Keylent Inc has been recognized for its commitment to exceptional service delivery and the profound impact of its solutions in facilitating business growth.

Industry

Internet and it

Company size

11 - 50 Employees

Headquarters location

Wilmington, DE, US

Year founded

2010

Social media

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