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Senior Mainframe Developer Jobs in Baltimore, MD

TecTammina

Sr Java Position

Baltimore, MD

$57 - $72.50/hr

Experience with reverse engineering projects * Experience on Linux/Unix platforms * Experience with Mainframe technologies including CICS, COBOL, DB2 is a plus. * Experience working with Government ...

InstantServe LLC

Senior Business Analyst

Baltimore, MD · On-site

$91K - $118K/yr

Lead and facilitate data migration efforts from mainframe environment to a modern SaaS platform ... Collaborate with cross-functional teams, including developers, database administrators, data ...

AAC

Tier 2 Deskside Technician

Fort George G Meade, MD

$22.50 - $28.50/hr

Provides Tier 2 desktop support to users for PC, server, mainframe applications, and hardware ... Has senior technical skills and understanding of the technical environment. May interact with ...

BAE Systems

Eng Sr Prin - SW

Annapolis Junction, MD · On-site

$126K - $215K/yr

BAE Systems is seeking a Software Engineer to support our government customer. The selected ... mainframe, mini and client/server-based). - Deploying and integrating software products and to ...

ICF

Senior Enterprise Architect

Baltimore, MD · On-site

... managers, engineers, and governance teams to align architecture with organizational goals ... mainframe, distributed, or hybrid environments Working at ICF ICF is a global advisory and ...

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Senior Mainframe Developer information

See Baltimore, MD salary details

$38

$57

$66

How much do senior mainframe developer jobs pay per hour?

As of Aug 8, 2026, the average hourly pay for senior mainframe developer in Baltimore, MD is $57.29, according to ZipRecruiter salary data. Most workers in this role earn between $53.75 and $62.60 per hour, depending on experience, location, and employer.

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 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 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 popular job titles related to Senior Mainframe Developer jobs in Baltimore, MD? For Senior Mainframe Developer jobs in Baltimore, MD, the most frequently searched job titles are:
What job categories do people searching Senior Mainframe Developer jobs in Baltimore, MD look for? The top searched job categories for Senior Mainframe Developer jobs in Baltimore, MD are:
What cities near Baltimore, MD are hiring for Senior Mainframe Developer jobs? Cities near Baltimore, MD with the most Senior Mainframe Developer job openings:
Senior Mainframe Developer jobs near you
Infographic showing various Senior Mainframe Developer job openings in Baltimore, MD as of June 2026, with employment types broken down into 90% Full Time, 9% Part Time, and 1% Contract. Highlights an 86% Physical, 4% Hybrid, and 10% Remote job distribution, with an average salary of $119,153 per year, or $57.3 per hour.

Senior Application Architect

Clover Solutions LLC

Baltimore, MD • On-site

Other

Posted 2 days ago

New

Job description

Role                 : Senior Application Architect
Years of Exp    : 15Yrs +

Location           : Baltimore, MD

Duration           : 12 Months

Note:  There will be a HackerRank online coding test.
 
If the resource has all the certificates and minimum qualifications, feel free to schedule a call.
Job Description:
Sr. Application Architect to design and oversee robust, scalable, and secure architecture solutions for a broad suite of internal and external-facing applications. The ideal candidate will hold multiple industry-standard architecture certifications and have hands-on experience architecting, troubleshooting, and enhancing complex enterprise systems.
 
Required Skills/Certifications:
TOGAF® (The Open Group Architecture Framework) – Enterprise Architecture
Certified Information Systems Architect (CISA) or CITA-Professional (IASA Global)
One or more Cloud Architecture Certifications, such as:
AWS Certified Solutions Architect – Professional
Microsoft Certified: Azure Solutions Architect Expert
Google Professional Cloud Architect
Programming Languages & Frameworks:
.NET / .NET Core
Web API 2.0
Java
JavaScript, jQuery, React
HTML5, Bootstrap
Server & Infrastructure:
Web Servers: IIS, Apache, WAMP
OS: Windows Server, Linux (various distros)
SSO Integration: Okta, SAML
Databases & Tools:
Oracle, SQL Server, MySQL
SQL Server Management Studio (SSMS), SQL Developer
Testing & Network Tools:
Postman (API testing)
Wireshark (Network traffic analysis)
 
Preferred Skills & Attributes:
Deep understanding of criminal justice and public safety systems, including integrations with federal (e.g., FBI/NDEX) and state-level law enforcement systems.
Experience in government or regulated environments with complex compliance requirements.
Familiarity with DevOps practices, CI/CD pipelines, and containerization technologies (Docker, Kubernetes).
Strong verbal and written communication skills, with the ability to convey technical information to non-technical audiences.
Ability to lead technical teams and mentor junior developers and engineers.
Highly organized, self-motivated, and detail-oriented with a strong analytical mind.
 
Topics for the Interview:
 
Backend & Modernization (Spring Boot):
• Core Spring Boot fundamentals (Dependency Injection, RESTful API creation, and Microservices architecture).
• Experience extracting and translating legacy business logic into modern Java applications.
 
Frontend Development (React):
• React fundamentals, including Hooks and state management.
• Integrating React frontends seamlessly with Spring Boot backend APIs.
 
Data Migration & Databases:
• Strong knowledge of relational databases (complex SQL queries, schema design, and performance tuning).
• ETL (Extract, Transform, Load) concepts, specifically mapping and migrating data from legacy mainframe files (e.g., flat files) to modern SQL databases while maintaining data integrity.
 
Security Implementation:
• Hands-on experience with Spring Security.
• Implementing authentication and authorization protocols (like OAuth2, JWT, and Role-Based Access Control) to secure both the APIs and the frontend.
 

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