Accellor is an AI-native services firm purpose-built for the post-ChatGPT era. Free from legacy constraints, we focus on delivering measurable business outcomes through advanced AI, data, and engineering capabilities. Our mission is to operationalize AI at scale and unlock sustained enterprise value.
Our offerings span AI solutions, data services, enterprise applications, and product engineering, tailored to industry-specific needs across healthcare, life sciences, telecom, retail, financial services, and technology. By leveraging design thinking and technology-agnostic architectures, we ensure faster time-to-value and seamless interoperability.
With a proven track record of enabling Fortune 100 enterprises and global innovators, Accellor stands as a trusted partner for organizations seeking to harness the full potential of AI. Our vision is clear: to build intelligent, connected ecosystems that deliver measurable outcomes and redefine the future of enterprise transformation.
We're looking for an experienced Senior Mainframe Developer to join our team and help build, maintain, and modernize mission-critical applications supporting the financial services industry.
If you enjoy solving complex technical challenges, working with large-scale enterprise systems, and delivering reliable, high-performing software, we'd love to hear from you.
In this role, you'll collaborate with architects, business stakeholders, and engineering teams to develop and support high-volume transaction processing systems that are essential to daily business operations.
What You'll Do- 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.
Requirements
- 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.
Skills Required
- 8+ years of IBM Mainframe development experience.
- Hands-on experience with COBOL.
- Hands-on experience with JCL.
- Hands-on experience with CICS.
- Hands-on experience with DB2.
- Hands-on experience with 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 Banking, Financial Services, or Insurance (BFSI).
- Knowledge of financial transaction processing systems.
- Experience with IBM z/OS.
- Familiarity with 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.
What We Do
We believe that constant innovation is key to staying relevant and competitive. We exist to guide innovative companies like yours throughout the transformation journey and beyond, making your organization future-proof and future-ready. Our work spans the breadth of your enterprise — from customers to employees and operations. We simplify and optimize internal and external processes and strengthen your business potential. We don’t use a cookie-cutter approach. Before we offer solutions, we actively listen to your questions and concerns. We conscientiously evaluate your current environment, processes, and challenges to ensure we provide you with the right mix of solutions and services. We are uniquely focused on delivering rapid business growth through services and technology solutions that evolve how our clients interact with their customers, employees and partners. We leverage best of breed Mobile, Machine Learning, and Cloud platforms to deliver results. Fast. With over 200 highly motivated people in 5 countries, we bring a refreshingly honest, personal and effective approach to making things happen.
