cover image
Caspian One

AS400 Developer

On site

Toronto, Canada

Senior

Freelance

20-01-2026

Share this job:

Skills

Leadership Jira SQL Scrum Customer Service Agile

Job Specifications

Acting as an AS400 development specialist and playing a crucial role in the management and development of computer systems. It means being responsible for the management, development, security, and maintenance of application on AS400 systems, while closely collaborating with other teams to meet client needs and improve operational processes. This job allows you to have a positive impact on our organisation, thanks to your expertise in AS400/I-series.

About the Role

Your Job

Work closely with our product team to bring customer requirements to life;
Collaborate with other team members to quickly deliver solutions that translate business needs into technical outcomes;
Constantly challenge the status quo and uncover defects and deficiencies;
Find ways to improve operational delivery.

Responsibilities

Minimum of 7 years of hands on experience on AS400.
Applied experience with one of the following technologies/languages: RPG/LE, COBOL/400, SQL, Query/400, QM Query, ASC Sequel, CLP/CLLE, MQ, Data queue, JIRA, Service Now, SFTP, IFS, DB2/400, TAATOOL, RDI and Arcad.
Experience with the Waterfall/Agile/Scrum approach and knowledge of JIRA.
Ability to solve problems independently and creatively.
Experience in problem analysis, data mapping, use case modeling, and documentation.
Commitment to deliver quality customer service and products.

Qualifications

Minimum of 7 years of hands on experience on AS400.

Required Skills

Applied experience with one of the following technologies/languages: RPG/LE, COBOL/400, SQL, Query/400, QM Query, ASC Sequel, CLP/CLLE, MQ, Data queue, JIRA, Service Now, SFTP, IFS, DB2/400, TAATOOL, RDI and Arcad.
Experience with the Waterfall/Agile/Scrum approach and knowledge of JIRA.
Ability to solve problems independently and creatively.
Experience in problem analysis, data mapping, use case modeling, and documentation.
Commitment to deliver quality customer service and products.

Preferred Skills

Ability to adapt to a changing environment.
Leadership.
Initiative.
Team mobilisation.

About the Company

Caspian One are an international professional services company. We solve technology-driven, resource-based and project-delivery challenges that demand speed, scale and commercial flexibility. Empowering individuals and organisations to optimise their full potential. Put simply – we deploy specialist resources and niche technology teams to deliver projects in ways that best suit the needs of our clients. These SMEs are working to decommission, migrate, build, and implement tech that gives our clients the competitive edge. ... Know more