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Position: Mainframe z/OS System Programmer Location: Plano, TX/Remote Duration: 1 Years : Must Have Technical/Functional Skills Knowledge and experience in support for a complex Mainframe Environment Knowledge and experience in support for Mainframe migrations and LPAR/MIPS management Experience in Mainframe backup to and restore from tape Knowledge and Experience in Mainframe datacentre migration and design Experience in Install, configure and supporting Mainframe LPARS and MIPS Experience configuring and supporting mainframe restores Experience in Capacity and performance management Experience with Remote Administration of MIPS/LPARS Work with vendor partners to manage the agreed upon SLA's Works with the vendor partners to improve the reporting and operations policies and procedures Roles & Responsibilities Responsible for Incident and service request on Mainframe technologies like zOS and upgrade projects and good knowledge on tool Generic Managerial Skills, If any NA Key Words to search in Resume Mainframe z/OS System Programmer Mainframe System Programmer z/OS System Administrator MVS System Programmer Pre-Screening Questionnaire Q1 .What are the pre-requisites for z/OS upgrade to 2.5 ? Whether PARMLIB changes needed for z/OS upgrade?

How You Will Make An Impact Researches, designs, develops, and/or modifies enterprise-wide systems and/or applications software Required Skills WHAT YOU'LL NEED TO SUCCEED: 5 year's experience with Ruby on Rails and Java Ability to obtain a public trust US CITIZENSHIP required EDUCATION AND EXPERIENCE: Technical Training, Certification(s) or Degree, 3+ years of experience Mission focused and a self starter/independent and scrappy 2+ years of experience with software development, software architecture, APIs, and microservices 2+ years of experience with building software using agile methods 2+ year experience with Ruby and associated frameworks (e.g Ruby on Rails) 2+ Experience with multiple back-end languages (e.g. Paid leave and paid holidays are prorated based on the employee's date of hire.

Responsibilities: Set the technical vision, elevate engineering excellence, and drive the development of scalable, high-impact software systems across our portfolio. Establish and uphold engineering standard processes for code quality, security, performance, and scalability Develop and maintain high-quality, efficient, well-tested code for critically important components Build and deploy modern applications using serverless and containerized AWS services, including Lambda, ECS/Fargate, DynamoDB, S3, API Gateway, and Step Functions Work closely with product, operations, design, and manufacturing teams to deliver impactful solutions Qualifications: 10+ years of software development experience, with deep expertise in cloud-based application development Demonstrated experience designing high-performance, scalable architectures Strong backend engineering expertise with C#, microservices, and distributed systems Proficiency in modern JavaScript frameworks (preferably React) Extensive AWS experience including serverless architectures, containers, CI/CD pipelines, and modern cloud services Experience with REST and GraphQL APIs Solid foundation in algorithms, data structures, and core CS fundamentals Awareness of security best practices: authentication, authorization, encryption, and compliance for cloud-native systems Preferred: Experience or passion for integrating generative AI, LLMs, automation, or ML-driven solutions into production systems Ability to lead the adoption of AI-enhanced workflows and developer productivity tools Show less

Careers with Holland Mountain Holland Mountain is a specialist consulting firm for the Private Capital industry. In 2019, Holland Mountain launched ATLAS, a suite of data solutions designed to solve the most critical and complex data problems in the Private Capital industry today.

This is a hands-on senior IC role with meaningful ownership over frontend architecture and user experience. Proven experience shipping real-time user interfaces connected to AI or streaming systems Strong testing discipline, including automated testing (e.g., Playwright, Jest) Ability to remain hands-on while contributing to technical direction and mentoring others Strong collaboration skills across design, product, and backend teams Experience working across both startup environments and larger engineering organizations Preferred Experience Ownership of frontend architecture or design systems at a SaaS or developer-focused company Familiarity with modern API and data transport patterns (e.g., GraphQL, typed RPCs) Experience with advanced browser capabilities (e.g., web workers, WASM) Exposure to collaborative or state-synchronization systems Data visualization experience for technical or analytical users Strong fundamentals in frontend security and accessibility Experience with monitoring, observability, and experimentation tooling Work Environment & Expectations On-site role based in Palo Alto, California High-intensity, execution-focused engineering culture Strong emphasis on ownership, accountability, and production reliability Opportunity to work on foundational AI systems with significant technical depth Competitive compensation, healthcare coverage, equity participation, and relocation / visa support Show less