ZipRecruiter

Log In

1

Senior Mainframe Developer Jobs in Washington, NJ

Saksoft

Mainframe with AI

Berkeley Heights, NJ · On-site

$51.25 - $65.75/hr

Mainframe developer with AI/GenAI Location: Berkeley Heights, NJ - Onsite Duration: 12+ Months ... Clients are looking for hands-on and senior resources with expertise who can set up and drive the ...

New

Monitise

Mainframe Sr. Advisor

Berkeley Heights, NJ · On-site

$121K - $193K/yr

Job Title Mainframe Sr. Advisor About your role: At Fiserv, we are dedicated to transforming ... As a Software Development Engineering - Sr Advisor I, you will play a critical role in leading the ...

Highbrow LLC

COBOL Developer

Berkeley Heights, NJ · On-site

$90 - $120/hr

Performance tuning and testing of mainframe code, troubleshooting performance problems, preparing ... Adhere to established standards and consult with senior managers on technology solutions. * Assign ...

New

Fairygodboss

Lead Application Developer

Florham Park, NJ · On-site

$100 - $130/hr

Influence and inspire confidence, presenting to senior leaders, product owners, and peers with ... Five (5) years of experience in z/OS mainframe environment, COBOL, JCL, VSAM, DB2, QMF, CICS ...

New

All JobsMainframe Developer JobsSenior Mainframe Developer JobsSenior Mainframe Developer Jobs in Washington, NJ

Senior Mainframe Developer information

See Washington, NJ salary details

$37

$55

$64

How much do senior mainframe developer jobs pay per hour?

As of Aug 19, 2026, the average hourly pay for senior mainframe developer in Washington, NJ is $55.86, according to ZipRecruiter salary data. Most workers in this role earn between $52.40 and $61.01 per hour, depending on experience, location, and employer.

What is a senior mainframe developer?

Senior Mainframe Developers are experienced professionals who design, develop, and maintain mainframe systems—large-scale computers used by organizations for critical applications, bulk data processing, and enterprise resource planning. They are proficient in languages like COBOL, JCL, and Assembler, and often work with databases and transaction processing systems. Their responsibilities include troubleshooting system issues, optimizing performance, mentoring junior developers, and ensuring the reliability and security of mainframe operations.

What are some common challenges faced by senior mainframe developers when integrating legacy systems with modern technologies?

Senior Mainframe Developers often encounter challenges when integrating legacy mainframe systems with newer technologies such as cloud platforms, APIs, or microservices. These challenges include ensuring data consistency, maintaining system security, and minimizing downtime during migrations. Collaboration with cross-functional teams, such as infrastructure engineers and application developers, is key to developing seamless integration solutions. Staying up-to-date with modernization tools and best practices can help address these complexities and support the organization's digital transformation goals.

What are the key skills and qualifications needed to thrive as a senior mainframe developer, and why are they important?

To thrive as a Senior Mainframe Developer, you need deep expertise in mainframe programming languages (like COBOL, JCL, and PL/I), systems analysis, and a strong understanding of legacy application architectures, typically supported by a degree in computer science or related experience. Familiarity with tools such as IBM z/OS, DB2, CICS, and version control systems is essential, along with relevant certifications like IBM Certified System Programmer. Excellent problem-solving, communication, and leadership skills help you collaborate effectively and mentor junior developers. These skills are crucial for maintaining mission-critical systems, ensuring reliability, and guiding modernization efforts in complex enterprise environments.

What cities near Washington, NJ are hiring for Senior Mainframe Developer jobs?

Cities near Washington, NJ with the most Senior Mainframe Developer job openings:

Senior Mainframe Developer jobs near you
Infographic showing various Senior Mainframe Developer job openings in Washington, NJ as of August 2026, with employment types broken down into 79% Full Time, 3% Part Time, and 18% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $116,191 per year, or $55.9 per hour.

Sr. Mainframe Developer -Multiple locations

NAVA Software Solutions

Berkeley Heights, NJ • On-site

$51.25 - $65.75/hr

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

NAVA Software solutions is looking for a Sr. Mainframe Developer
Details:
Sr. Mainframe Developer
Duration: 6-12 months
Location: Milwaukee, WI, Lincoln, NE, Omaha, NE, Alpharetta, GA, Berkeley Heights, NJ, Dallas, TX, Atlanta, GA, or Frisco, TX (100% Onsite)
Skills: iSeries, Mainframe, COBOL, GIT, TDD
Responsibilities:
  • Play a key role in developing industry leading software
  • Develop and test complex technical and architectural solutions that support Bank Solution product strategies and address the market needs of the client
  • Define & complete enhancements to financial software

Required:
  • Minimum 6+ years of relevant experience in application development.
  • Experience with iSeries, Unisys, and/or other mainframe technologies.
  • Experience with mainframe development languages such as Cobol.
  • Experienced with source management tools including GIT or similar tools.
  • Agile and/or DevOps experience.
  • Knowledgeable in industry standard software design patterns, development, data modelling, and SOLID principles.
  • Knowledgeable in test driven development (TDD) and automated functional testing including tools like UFT, Postman, and Selenium.
  • The ability to clearly communicate complex technical specifications, and the motivation to achieve best-in-class results.

Desired: Financial industry interest and experience is beneficial.
Education: Associate's degree in Computer Programming or related discipline is required, but a Bachelor's degree in IT or a related discipline is preferred.
NAVA Software Solutions logo

About NAVA Software Solutions

Sourced by ZipRecruiter

NAVA is a strategic partner for companies seeking to develop or customize software and products. Our team of experts leverages cutting-edge technology and deep industry knowledge to provide customized solutions that drive business success. Whether you're looking to improve your operations, increase efficiency, or bring a new product to market, NAVA has the expertise and resources to help you achieve your goals. Trust us to be your partner in software and product development.

Industry

It services

Company size

51 - 200 Employees

Headquarters location

Rocky Hill, CT, US

Social media

Facebook

View All NAVA Software Solutions Jobs

Apply