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[Remote] Senior Mainframe Engineer

Work from home Full-time role Hiring

Note: The job is a remote job and is open to candidates in USA. Accellor is an AI-native services firm focused on delivering measurable business outcomes through advanced AI, data, and engineering capabilities. They are seeking an experienced Senior Mainframe Developer to help build, maintain, and modernize mission-critical applications supporting the financial services industry.

Responsibilities

  • Design, develop, test, and maintain enterprise COBOL applications on IBM Mainframe platforms
  • Develop and enhance batch and online transaction processing systems
  • Analyze business and technical requirements to deliver scalable, reliable solutions
  • Troubleshoot production issues and provide ongoing application support
  • Optimize application performance and improve system stability
  • Participate in code reviews and contribute to development best practices
  • Collaborate with cross-functional teams throughout the software development lifecycle
  • Support modernization initiatives and integration with newer technologies while maintaining critical legacy systems
  • Create and maintain technical documentation

Skills

  • 8+ years of IBM Mainframe development experience
  • Strong hands-on experience with: COBOL, JCL, CICS, DB2, VSAM
  • Experience supporting enterprise-scale production applications
  • Strong analytical and problem-solving skills
  • Experience working within the Software Development Life Cycle (SDLC)
  • Excellent communication and collaboration skills
  • Experience within the Banking, Financial Services, or Insurance (BFSI) industry
  • Knowledge of financial transaction processing systems
  • Experience with IBM z/OS
  • Familiarity with tools such as File-AID, Abend-AID, Expeditor, Endevor, or Changeman
  • Experience integrating mainframe applications with distributed systems or APIs
  • Exposure to Agile development methodologies
  • Experience supporting modernization or digital transformation initiatives

Company Overview

  • Accellor is a premier provider of Mobile,Social and Web solutions enabling enterprises to provide a unified customer experience. It was founded in 2009, and is headquartered in Fremont, California, USA, with a workforce of 201-500 employees. Its website is https://www.accellor.com.
  • Company H1B Sponsorship

  • Accellor has a track record of offering H1B sponsorships, with 8 in 2025, 3 in 2024, 5 in 2023. Please note that this does not guarantee sponsorship for this specific role.
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