Ubique Systems

TRCI-26-04785

Mainframe Technical Lead / Senior Mainframe Engineer (Design & Delivery)

Contract role in Gothenburg for a senior mainframe engineer who can own detailed technical design, break requirements into implementable tasks with estimates and acceptance criteria, and deliver hands-on development for complex/high-risk components. The person will lead a small-to-mid team through full delivery cycles, run code reviews and design walkthroughs, enforce testing and release readiness (including rollback/verification), and drive root-cause analysis and permanent fixes. Strong focus on performance, security, reliability, maintainability, and cross-functional collaboration in an agile delivery setup.

Position summary

Location
Sweden
Workplace
On-site
Employment
Contract
Experience
Minimum 10 years and Maximum 12 years
Apply now

Role overview

Why This Role Matters.

Contract role in Gothenburg for a senior mainframe engineer who can own detailed technical design, break requirements into implementable tasks with estimates and acceptance criteria, and deliver hands-on development for complex/high-risk components. The person will lead a small-to-mid team through full delivery cycles, run code reviews and design walkthroughs, enforce testing and release readiness (including rollback/verification), and drive root-cause analysis and permanent fixes. Strong focus on performance, security, reliability, maintainability, and cross-functional collaboration in an agile delivery setup.

Your Impact

Deliver Enterprise Value

Help organisations solve complex business problems through modern technology, consulting expertise and measurable outcomes.

Collaboration

Work Across Teams

Collaborate with consultants, architects, engineers and client stakeholders throughout the project lifecycle.

Growth

Learn Continuously

Gain exposure to enterprise technologies, certifications, mentoring and real-world project experience.

Career Path

Grow With Ubique

Build a long-term consulting career with opportunities to take on greater responsibility and leadership over time.

Responsibilities

What You'll Be Doing.

Every role at Ubique contributes directly to solving meaningful business challenges for our clients.

01

Own detailed design for mainframe components, interfaces and enhancements within the agreed architecture.

02

Break down requirements into technical tasks, estimates, sequencing and clear acceptance criteria.

03

Deliver hands-on development for complex or high-risk components alongside the team.

04

Ensure designs meet performance, security, reliability and maintainability expectations.

05

Guide a team of developers on design decisions, coding standards and technical approach.

06

Run code reviews, design walkthroughs, defect triage and technical knowledge sharing.

07

Mentor engineers, support onboarding and build depth across the mainframe skill set.

08

Define and enforce unit, integration and regression testing expectations for the team.

09

Own build, release and deployment readiness including rollback and verification steps.

10

Drive defect prevention, root-cause analysis and permanent fixes over workarounds.

11

Work with architects, business analysts, QA, DevOps and support teams across the delivery lifecycle.

12

Participate in agile ceremonies, planning, estimation and dependency management.

Technology stack

Tools & Technologies.

The platforms and technologies you'll use to build modern, enterprise-grade solutions.

01

mainframe

02

technical design

03

interfaces

04

code review

05

defect triage

06

root cause analysis

07

unit testing

08

integration testing

09

regression testing

10

build

11

release

12

deployment

13

rollback

14

verification

15

performance

16

security

17

reliability

18

maintainability

19

agile

20

technical documentation

Requirements

Skills & Experience.

We value curiosity, collaboration and continuous learning. If you don't meet every requirement but believe you can make an impact, we'd still love to hear from you.

Essential

Required Qualifications

Mainframe software engineering (10+ years)

Technical design ownership for components and interfaces

Hands-on development for complex/high-risk components

Breaking requirements into technical tasks, estimates, sequencing, and acceptance criteria

Code reviews and coding standards enforcement

Defect triage, root-cause analysis, and permanent fixes

Unit, integration, and regression testing expectations/ownership

Build, release, and deployment readiness (including rollback and verification)

Performance, security, reliability, and maintainability considerations in design

Technical leadership/mentoring of a small-to-mid sized team

Agile ceremonies, planning, estimation, and dependency management

Technical documentation and standards maintenance

Preferred

Nice to Have

Relevant platform certifications

Relevant cloud certifications

What you'll gain

More Than Just A Job.

We're committed to helping every team member grow professionally, personally and technically while working on meaningful projects.

Global Exposure

Collaborate with international clients and multicultural teams on enterprise programmes.

Continuous Learning

Expand your expertise through mentoring, certifications and hands-on project experience.

Career Growth

Take ownership, develop leadership skills and grow your consulting career over time.

Flexible Working

Hybrid and remote collaboration designed around trust and delivering exceptional outcomes.

People First

Join a supportive culture where collaboration, respect and long-term relationships come first.

Enterprise Projects

Work on meaningful technology initiatives for leading organisations across industries.

Apply

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