Mainframe Developer

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Job Description # Mainframe Developer
1. Partner with customers and stakeholders to understand use cases, pain points, and requirements; advocate for user‑centric solutions.
2. Design, develop, and deliver software using a variety of tools, languages, frameworks, methodologies (e.g., Agile), and technologies.
3. Analyze business and technical requirements to determine optimal technology stacks, integration methods, and deployment strategies.
4. Create high‑level architecture designs outlining overall structure, key components, and system interfaces.
5. Collaborate with cross‑functional partners such as product owners, designers, and architects.
6. Define and implement testing strategies, standards, and processes aligned with organizational goals and industry best practices.
7. Continuously optimize application performance and incorporate new technologies to increase development efficiency.
8. Apply modern programming practices such as test-driven development (TDD), continuous integration (CI), and continuous delivery (CD).9. Implement and support security best practices, including data encryption and anonymization.
10. Develop intuitive, user-friendly interfaces.
11. Build and maintain back-end systems, including APIs and microservices using server-side languages.
12. Evaluate and adopt emerging technologies, collaborating with industry partners where applicable.

- ** Job Control Language (JCL)** – Ability to write structured jobs, debug JCL errors, and understand schedule IDs.

- ** Mainframe Databases (DB2 or equivalent)** – Understanding of relational databases; ability to write and debug SQL; knowledge of keys and indexes.

- ** COBOL** – Ability to code and debug COBOL programs of moderate complexity.

- ** Mainframe Systems*
* – Experience with ISPF, File Manager, CA7, Syncsort, and sFTP.

- ** Relational Database Design*
* – Experience with table design, normalization, and key-field identification.
* 6+ years of IT experience
* 4+ years of software development experience
* Practical experience in two programming languages or advanced proficiency in one
* Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package.

Our commitment to excellence is reflected in many awards, including Clearly Rated's Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click
* * for more details.
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