Referso Jobs

Technical Project Manager (Mainframe / z/OS)

DCM INFOTECH LIMITED · Posted Nov 9, 2026

Open

Remote
Remote

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Technical Project Manager (Mainframe / z/OS)

DCM INFOTECH LIMITED · Posted Nov 9, 2026

Open

Remote
Remote

Apply with RefersoAI Apply on careers page

Software Engineer (Apps) 4

WEX · Posted Nov 5, 2026

Open

Remote, United States
Remote
Full-time
$141K–$173K per year
10+ years

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Senior software engineer responsible for designing, developing, and maintaining backend services and APIs for WEX Mobility’s iSeries platform, leading technical initiatives and mentoring junior staff.

Compensation

Pay Range: $140,600.00 - $173,100.00

Responsibilities

Design, develop, and maintain robust, scalable, and high-performance object oriented code in backend services
Develop public REST APIs using Java and internal gRPC APIs for inter-service and inter-system communication
Write automated unit tests, integration tests, end-to-end tests, concurrency tests, load/performance tests
Implement automation for testing, monitoring, healing, and scaling applications, continuous integration and deployment
Collaborate with cross-functional teams to define and implement new features

Requirements

Bachelor’s degree in Computer Science or Software Engineering
Nice to have: Kafka
Nice to have: Docker
Nice to have: Kubernetes
Nice to have: Event-driven architecture

Skills

Java C#SpringBoot REST

Software Engineer (Apps) 4

WEXWEXUS · Posted Nov 5, 2026

Open

Remote, United States
Remote
Full-time · Senior
$141K–$173K per year
10+ years

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Senior Software Engineer in the WEX Mobility Engineering organization, responsible for designing, developing, and maintaining scalable backend services and APIs on IBM iSeries platform.

Compensation

Pay Range: $140,600.00 - $173,100.00

Responsibilities

Design, develop, and maintain robust, scalable, and high-performance object oriented code in backend services
Develop public REST APIs using Java and internal gRPC APIs
Craft system designs, lead design decisions, and drive alignment with senior engineers
Write automated unit, integration, end-to-end, concurrency, load/performance tests
Analyze existing systems to identify bottlenecks and implement scalability improvements

Requirements

Bachelor’s degree in Computer Science or Software Engineering
Nice to have: Master’s degree in computer science or software engineering
Nice to have: 8 years of experience in software engineering
Nice to have: Event-driven architecture
Nice to have: Card payments

Skills

Java C#SpringBoot RESTful APIs

Manager, Mainframe Operations

Ensono · Posted Oct 14, 2022

Open

Downers Grove, Illinois, United States +1 more
Manager
5+ years

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Lead and manage Mainframe Operations teams, overseeing delivery, support, and continuous improvement of mainframe and distributed batch operations.

Locations (2)

Downers Grove, Illinois, United States
United States

Responsibilities

Manage delivery and support processes across multiple initiatives
Ensure client infrastructure meets SLAs
Provide technical guidance for projects
Assess and mitigate delivery risks
Build capabilities within the portfolio

Requirements

Bachelor’s degree or equivalent experience

Skills

JCL DB2 VSAM MVS

Mainframe Security Engineer

Ensono · Posted Sep 20, 2022

Open

Downers Grove, Illinois, United States

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Mainframe System Security Engineer responsible for creating, modifying, and maintaining security access and policies for mainframe systems.

Responsibilities

Create, modify and maintain security access on internal and external userids and security rules for mainframe systems
Review security policies, procedures, standards, baselines and recommend remediation plans
Monitor system security policy and violations/incidents
Perform and review daily, weekly, and monthly audit reports
Liaise with business areas and other technical support areas

Requirements

CISSP
CISA
CISM
ITIL Certification
Bachelor's Degree

Skills

RACF ACF2 Top Secret IBM utilities TSO JCL ISPF JES2 CICS Vanguard security products REXX iSeries security MVS Vanguard

See full job description

Technical Project Manager (Mainframe / z/OS)

Technical Project Manager (Mainframe / z/OS)

Responsibilities

Skills

Software Engineer (Apps) 4

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Software Engineer (Apps) 4

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