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$47.25 - $60.75/hr
Role name: Senior Developer - IBM z/OS Connect Work site: Columbus, OH or Nashville, TN (both locations would be for onsite work), US (ONSITE) Start date: Immediate availability. Role Summary The ...
Columbus, OH · On-site
$47.25 - $60.75/hr
Role name: Senior Developer - IBM z/OS Connect Work site: Columbus, OH or Nashville, TN (both locations would be for onsite work), US (ONSITE) Start date: Immediate availability. Role Summary The ...
Marysville, OH · On-site
$17.50 - $23.25/hr
Job Title- Lab Technician Duration- 12 Month+ Contract Work Location: Marysville, OH Work Schedule: FT / Mon - Fri Overall objective/accountability Perform routine general chemistry analyses and ...
Marysville, OH · On-site
$17.50 - $23.25/hr
Job Title- Lab Technician Duration- 12 Month+ Contract Work Location: Marysville, OH Work Schedule: FT / Mon - Fri Overall objective/accountability Perform routine general chemistry analyses and ...
Lewis Center, OH · On-site
$46.50 - $60/hr
Mainframe Developer Location : Columbus, OH Exp: 8+ Yrs RTTO - 5 Days Onsite Expert knowledge on CICS along with hands on experience. Average knowledge on MQ Mandatory Skills- COBOL, MQ, JCL, DB2 ...
Lewis Center, OH · On-site
$46.50 - $60/hr
Mainframe Developer Location : Columbus, OH Exp: 8+ Yrs RTTO - 5 Days Onsite Expert knowledge on CICS along with hands on experience. Average knowledge on MQ Mandatory Skills- COBOL, MQ, JCL, DB2 ...
Cincinnati, OH · On-site
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Cincinnati, OH · On-site
Apolis is seeking a NGPOS Scripting Tech Lead to join their team in Cincinnati, OH. The role requires expertise in scripting and backend solutions, focusing on technologies such as Java, Spring Boot ...
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$64.50 - $85/hr
Apolis is seeking an Enterprise Solution Architect with advanced skills in Enterprise Architecture. The role involves integrating hardware, software, and network interfaces to form a cohesive system ...
$64.50 - $85/hr
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San Francisco, CA · On-site
Apolis is a company focused on ensuring quality and functionality of software applications in a life science regulated environment. They are seeking a QA Tester to execute test cases, identify ...
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San Francisco, CA · On-site
Apolis is a company focused on ensuring quality and functionality of software applications in a life science regulated environment. They are seeking a QA Tester to execute test cases, identify ...
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Cincinnati, OH · On-site
$51.50 - $70.50/hr
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Cincinnati, OH · On-site
$51.50 - $70.50/hr
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Apolis is a company seeking a Full Stack Developer Contractor with advanced skills in Node.js and other technologies. The role involves designing, developing, and maintaining applications while ...
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Redmond, WA · On-site
Apolis is seeking a Software Lead to develop functionality for various aspects of the optimization workflow. The role involves problem definition, designing callable libraries and graphical ...
Redmond, WA · On-site
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Apolis is seeking a Data Warehouse Consultant to design, develop, and maintain data warehouse solutions that support business intelligence and reporting needs. The role involves implementing data ...
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Chicago, IL · On-site
$50.50 - $65/hr
Apolis is seeking a Mainframe Developer to be a core technical resource responsible for the daily development, maintenance, and support of mainframe health claims applications. The role involves ...
Chicago, IL · On-site
$50.50 - $65/hr
Apolis is seeking a Mainframe Developer to be a core technical resource responsible for the daily development, maintenance, and support of mainframe health claims applications. The role involves ...
Nashville, TN · On-site
Apolis is a company seeking hands-on engineers for their Software Developer 2 role in Nashville, TN. The position focuses on feature development and delivery in risk, compliance, and controls-driven ...
Nashville, TN · On-site
Apolis is a company seeking hands-on engineers for their Software Developer 2 role in Nashville, TN. The position focuses on feature development and delivery in risk, compliance, and controls-driven ...
$56.50 - $77.50/hr
Apolis is seeking a Databricks Architect / Lead to drive architecture, design, and technical delivery for PBM UDAP initiatives in the healthcare domain. This role will lead solutioning and ...
$56.50 - $77.50/hr
Apolis is seeking a Databricks Architect / Lead to drive architecture, design, and technical delivery for PBM UDAP initiatives in the healthcare domain. This role will lead solutioning and ...
Apolis is seeking an Application Specialist I who will provide support for live application software relied upon by users. The role involves diagnosing incidents, managing service requests, and ...
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Apolis is a company specializing in AI and Machine Learning solutions, and they are seeking an AI/ML Lead to oversee assurance planning and execution for various use cases. The role involves ...
Apolis is a company specializing in AI and Machine Learning solutions, and they are seeking an AI/ML Lead to oversee assurance planning and execution for various use cases. The role involves ...
$30.75 - $40.50/hr
Apolis is a company seeking an IT Controls Testing (Risk Management) professional. The role involves leading risk assessments and audits of IT controls and systems, reviewing business processes ...
$30.75 - $40.50/hr
Apolis is a company seeking an IT Controls Testing (Risk Management) professional. The role involves leading risk assessments and audits of IT controls and systems, reviewing business processes ...
Irvine, CA · On-site
Apolis is seeking a highly capable Full-Stack Software Development Engineer (SDE II / SDE III equivalent) to contribute to automation efforts across internal systems supporting incident response ...
Irvine, CA · On-site
Apolis is seeking a highly capable Full-Stack Software Development Engineer (SDE II / SDE III equivalent) to contribute to automation efforts across internal systems supporting incident response ...
Baltimore, MD · On-site
Apolis is seeking a MO365 SharePoint Lead to oversee mid to large scale M365 implementations. The role involves managing Exchange Online, SharePoint Online, and One Drive for Business, as well as ...
Baltimore, MD · On-site
Apolis is seeking a MO365 SharePoint Lead to oversee mid to large scale M365 implementations. The role involves managing Exchange Online, SharePoint Online, and One Drive for Business, as well as ...
Apolis is a company seeking a Senior Specialist in Data & Analytics Product Management. The role involves managing data analytics projects, leading Agile ceremonies, and utilizing business ...
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Apolis is a company seeking a Senior Specialist in Data & Analytics Product Management. The role involves managing data analytics projects, leading Agile ceremonies, and utilizing business ...
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$104K - $138K/yr
Apolis is a company that focuses on delivering AI solutions for legal research and document management. They are seeking a Lead Platform Engineer to own and secure the production API gateway for ...
$104K - $138K/yr
Apolis is a company that focuses on delivering AI solutions for legal research and document management. They are seeking a Lead Platform Engineer to own and secure the production API gateway for ...
What is it like to work at Apolis?
$47.25 - $60.75/hr
Other
Posted 27 days ago
Role name: Senior Developer – IBM z/OS Connect
Work site: Columbus, OH or Nashville, TN (both locations would be for onsite work), US (ONSITE)
Start date: Immediate availability.
Role Summary
The Senior Developer – IBM z/OS Connect is responsible for exposing mainframe-based services (CICS, IMS, DB2, COBOL) as RESTful APIs using IBM z/OS Connect Enterprise Edition (EE). This role plays a key part in mainframe modernization, enabling digital, cloud, and API-based consumption of trusted system-of-record data while ensuring performance, security, and reliability.
The role combines deep z/OS technical expertise with modern API and integration practices, and often acts as a technical lead for mainframe API initiatives.
Job location: Columbus, OH or Nashville, TN (both locations would be for on site work)
________________________________________
Key Responsibilities
z/OS Connect & API Development
• Design, develop, and deploy REST APIs using IBM z/OS Connect EE.
• Expose CICS, IMS, COBOL, and DB2 assets as reusable services.
• Create and maintain service and API specifications (Swagger/OpenAPI).
• Implement request/response mappings using JSON, data binding, and API descriptors.
• Support synchronous and asynchronous service interactions.
Mainframe Integration
• Develop and maintain COBOL programs and interface logic to support APIs.
• Integrate APIs with CICS Transactions, IMS Transactions, and DB2 stored procedures.
• Collaborate with application teams to refactor or enable programs for API exposure.
• Ensure minimal impact to legacy workloads and SLAs.
Security & Governance
• Implement API security controls including:
o RACF-based authentication and authorization
o TLS/SSL configuration
o Integration with enterprise IAM and API gateways
• Apply enterprise API governance standards including naming, versioning, and error handling.
• Support auditing, logging, and compliance requirements.
Performance & Reliability
• Tune z/OS Connect middleware for throughput, latency, and scalability.
• Troubleshoot issues across z/OS Connect, CICS/IMS, and network layers.
• Ensure APIs meet availability and resiliency standards.
• Monitor and analyze SMF, logs, and performance metrics.
DevOps & Modernization Support
• Support CI/CD pipelines for mainframe-based APIs.
• Participate in automation initiatives using tools such as urbanCode, Jenkins, Git, or Ansible.
• Assist in modernization programs integrating z/OS with cloud and distributed platforms.
• Promote API-first thinking within traditional mainframe development teams.
Technical Leadership
• Serve as a subject matter expert for z/OS Connect and mainframe APIs.
• Provide guidance and mentoring to junior developers.
• Participate in design reviews and modernization planning.
• Collaborate with architects, API platform teams, and distributed application teams.
________________________________________
Required Qualifications
Mainframe & z/OS Expertise
• 7+ years of experience in z/OS mainframe development.
• Strong experience with COBOL, JCL, and z/OS utilities.
• Hands-on experience with CICS and/or IMS.
• DB2 SQL and stored procedure experience.
z/OS Connect & APIs
• 3+ years of experience with IBM z/OS Connect EE.
• Strong understanding of RESTful API design and JSON data formats.
• Experience creating and consuming OpenAPI/Swagger definitions.
• Familiarity with API lifecycle management concepts.
Middleware & Security
• Experience with WebSphere Liberty on z/OS.
• Knowledge of RACF, TLS, certificates, and mainframe security principles.
• Understanding of network concepts relevant to API communication.
________________________________________
Preferred Qualifications
• Experience integrating z/OS APIs with API gateways (Apigee, Azure APIM, DataPower, etc.).
• Exposure to cloud or hybrid integration architectures.
• Experience with DevOps for mainframe and automation tooling.
• IBM certifications related to z/OS, CICS, or z/OS Connect.
• Background in regulated industries (banking, insurance, government).
________________________________________
Soft Skills
• Strong communication skills across mainframe and distributed teams.
• Ability to bridge legacy systems with modern digital platforms.
• Analytical problem-solving skills.
• Comfortable working in complex, enterprise-scale environments.