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Senior Mainframe Developer Jobs in Aurora, IL (NOW HIRING)

Northern Trust

Sr. Lead, SW Support

Chicago, IL · On-site

Strong experience in application production support across mainframe, distributed and data ... Understanding of engineering delivery pipelines, DevOps practices, continuous integration ...

Northern Trust

Sr. Lead, SW Support

Chicago, IL · On-site

Strong experience in application production support across mainframe, distributed and data ... Understanding of engineering delivery pipelines, DevOps practices, continuous integration ...

Northern Trust

Sr. Lead, SW Support

Chicago, IL · On-site

Strong experience in application production support across mainframe, distributed and data ... Understanding of engineering delivery pipelines, DevOps practices, continuous integration ...

Capgemini

Principal Solution Architect

Chicago, IL · On-site

$103K - $242K/yr

... Senior Legacy Modernization (Mainframe) leader who is a highly experienced technical leader ... Engineering, or related field (advanced degree preferred). • 5+ years of experience building ...

Capgemini

Principal Solution Architect

Chicago, IL · On-site

$104 - $242/hr

About the Job Capgemini is seeking Senior Legacy Modernization (Mainframe) leader who is a highly ... Bachelor's degree in Business, Computer Engineering, or related field (advanced degree preferred ...

New

United Airlines

Quality Engineering Manager

Chicago, IL · On-site

$102 - $133/hr

Partner with application DevOps teams and build CICD pipeline for the sanity, integration and ... Research and resolve people and project issues; provide recommendations; escalat[e] to senior ...

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Senior Mainframe Developer information

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How much do senior mainframe developer jobs pay per hour?

As of Aug 23, 2026, the average hourly pay for senior mainframe developer in Aurora, IL is $57.16, according to ZipRecruiter salary data. Most workers in this role earn between $53.61 and $62.45 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.

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Senior Mainframe Developer jobs near you
Infographic showing various Senior Mainframe Developer job openings in Aurora, IL as of August 2026, with employment types broken down into 80% Full Time, 6% Part Time, and 14% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution, with an average salary of $118,889 per year, or $57.2 per hour.

Sr. Lead, SW Support

Northern Trust

Chicago, IL • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 10 days ago

Northern Trust rating

8.2

Company rating: 8.2 out of 10

Based on 27 frontline employees who took The Breakroom Quiz

Job description

About Northern Trust
As a global leader in innovative wealth management, asset servicing, asset management and banking services, Northern Trust (Nasdaq: NTRS) is proud to guide the world's most successful individuals, families, corporations and institutions.
Since 1889, we have aligned our efforts with our three guiding Principles That Endure: Service, Expertise, and Integrity. Together, they reflect the three cornerstones of business conduct which we strive to instill in our employees, whom we call partners, and to provide to our clients and the communities we serve worldwide.
With more than 135 years of financial experience and over 24,000 partners, we serve the world's most sophisticated clients using leading technology and exceptional service.
The Senior Lead, Software Support is part of the global Accounting and Fund Administration Production Assurance team and is responsible for supporting the production environment across AMRS, APAC and EMEA. The role provides high quality service to Operations and Business stakeholders, ensuring system availability, service continuity and timely resolution of production issues.
This role requires strong experience in application support across distributed and data technologies, including SQL, Oracle and ETL platforms. The individual should be confident operating within IT Service Management processes, able to solve complex problems, and committed to continuous improvement and professional development.
Major Duties
  • Provide senior level production support for critical Accounting and Fund Administration applications, ensuring stability, availability and adherence to service level agreements.
  • Investigate, analyze and resolve complex production incidents, coordinating with business, technology, infrastructure, vendor and support teams as required.
  • Act as a subject matter expert for application support, providing technical guidance, consultation and leadership to team members and stakeholders.
  • Evaluate processes, tools and technologies to improve operational resilience, support efficiency and business outcomes.
  • Contribute to strategic planning and long-term direction for production support capabilities within the business function.
  • Advise how to develop, maintain and enhance scripts, utilities or application components where required to support production stability and operational improvement.
  • Oversee cross functional activities such as defect remediation, scheduling changes and service improvement actions, ensuring completion by the appropriate teams.
  • Manage priorities, organise team activity, monitor progress and ensure work is completed accurately and within agreed timelines.
  • Engage with management, committees and senior stakeholders to provide updates, recommendations and subject matter expertise.
  • Follow ITIL aligned incident, problem and change management processes, including appropriate escalation and documentation.
  • Participate in out-of-hour support on an occasional basis, including weekends, for high priority and critical production issues.

Knowledge/Skills
  • Strong experience in application production support across mainframe, distributed and data platforms.
  • Excellent knowledge of enterprise communication, collaboration and automation tools such as Microsoft 365 and Power Platform.
  • Excellent understanding of IT Service Management, change management, incident management, ticket workflows and escalation practices.
  • Experience using ServiceNow for incident, problem and change management activities.
  • Practical knowledge of DataStage, ETL job support, investigation and remediation.
  • Working knowledge of SQL, preferably Oracle and Microsoft SQL Server, with the ability to troubleshoot common database issues.
  • Experience with Linux and Windows server environments, including scripting and operational support.
  • Ability to align technical solutions with business requirements in a practical and outcome focused manner.
  • Knowledge of scheduling tools such as Control M.
  • Understanding of engineering delivery pipelines, DevOps practices, continuous integration, continuous delivery and Agile ways of working.
  • Familiarity with containerized microservice architectures, Docker, Kubernetes and messaging platforms such as Kafka, RabbitMQ or Solace.
  • Working knowledge of cloud-based technologies and modern application support practices.
  • Ability to identify automation opportunities and reduce repetitive operational activity.

Personal Traits
  • Strong analytical and problem-solving capability.
  • Excellent verbal and written communication skills, including the ability to engage confidently with senior business stakeholders.
  • Self-motivated, proactive and able to work effectively with minimal supervision.
  • Well organized, adaptable and able to manage changing priorities in a fast-paced environment.
  • Collaborative approach with the ability to build effective working relationships across teams and regions.
  • Commitment to continuous learning and ongoing improvement.
  • Willingness to work outside standard office hours when required to support critical production issues.

Industry
  • Financial services domain knowledge is desirable, particularly in middle office operations, asset servicing, fund services or transfer agency.
  • Minimum of 10 years of relevant experience.

Salary Range:
$95,600 - 162,400 USD
Salary range is a good faith estimate of base pay. Northern Trust provides a comprehensive benefits package including retirement benefits (401k and pension), health and welfare benefits (medical, dental, vision, spending accounts and disability), paid time off, parental and caregiver leave, life & accident insurance, and other voluntary and well-being benefits. Northern Trust also provides a discretionary bonus program that may include an equity component.
Work Authorization
Applicants must be authorized to work in the U.S. without the need for employment-based visa sponsorship now or in the future. Northern Trust will not sponsor applicants for U.S. work visa status for this opportunity (no sponsorship is available for H-1B, L-1, TN, O-1, E-3, H-1B1, F-1, J-1, OPT, CPT or any other employment-based visa).
Working with Us
As a Northern Trust partner, you will be part of a flexible and collaborative work culture, which has a strong history of financial strength and stability. Movement within the organization is encouraged, senior leaders are accessible, and you can take pride in working for a company committed to an inclusive workplace and assisting the communities we serve.
Philanthropy is deeply rooted in Northern Trust's history and is an essential element of our culture. Employees around the world give their time and talent to work for the greater good of their communities.
Reasonable Accommodation
Northern Trust is committed to working with and providing adjustments to individuals with health conditions and disabilities. If you need a reasonable accommodation for any part of the employment process, please email our HR Service Center at MyHRHelp@ntrs.com, or alternatively you can discuss your individual requirements with the recruiter you are working with.

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