Lead Oracle Applications Developer

Sigma; Cardiff; On-site; GBP 50,000 - 61,000; Full time

Benefits offered by this job

Company pension contributions up to 10

Early finish Fridays at 1:30 pm

Flexitime

Free on-site parking

Canteen

24 days holiday + bank holidays rising

Enhanced family and sickness pay

Employee Assistance Programme

Life insurance 4x salary

Job summary

Sigma, based in Cardiff, is seeking a Lead Oracle Applications Developer to own the full lifecycle of Oracle EBS and APEX projects from requirements gathering through go-live. The role is hands-on in a busy on-site IT team, with visible impact on business processes.

You will design and build modern Oracle APEX applications, support the EBS/R12.2 environment, and lead initiatives with business users. A strong technical and functional background in Oracle is essential.

Qualifications

• Experience with Oracle EBS and Oracle APEX is required.
• Ability to own the full project lifecycle end to end, including gathering requirements from business users.
• On-site work in Cardiff five days a week is required.

Responsibilities

• Take responsibility for Oracle EBS and APEX development at our manufacturing business.
• Enhance, support and optimise our Oracle E-Business Suite (R12.2) environment.
• Design and build Oracle APEX applications, both standalone and integrated with EBS.
• Lead requirements gathering with business users and run projects end to end.
• Troubleshoot complex issues across EBS modules and interfaces.
• Maintain and enhance VB.NET and Python applications.
• Prototype new tools and process improvements.

Skills

Oracle E-Business Suite

Oracle APEX

End-to-end project lifecycle

On-site Cardiff

Tools

VB.NET

Python

Job description

Salary: £55,000 - 55,000 per year

Requirements

• Oracle E-Business Suite (EBS) experience, both functional and technical
• Oracle APEX experience
• Ability to own the full project lifecycle end to end, including gathering requirements directly from business users
• Ability to work on site in Cardiff five days a week

Responsibilities

• Take responsibility for Oracle EBS and APEX development at our manufacturing business
• Enhance, support and optimise our Oracle E-Business Suite (R12.2) environment
• Design and build modern Oracle APEX applications, both standalone and integrated with EBS
• Lead requirements gathering with business users and run projects end to end
• Troubleshoot complex technical and functional issues across EBS modules and interfaces
• Maintain and enhance a small portfolio of supporting VB.NET and Python applications
• Prototype new tools and process improvements to keep our systems ahead of the business

Technologies

• Apex
• Support
• Oracle
• Python
• AI

More

We are a large manufacturing business with a small, close-knit IT team based on site at our busy Cardiff manufacturing site. This is a hands-on Lead Oracle Applications Developer role where you will work closely with business users from the first conversation through to go-live, with real ownership and visible impact. We offer a salary of up to £55,000, company pension contributions of up to 10%, an early finish every Friday at 1:30 pm, flexitime, free on-site parking, a canteen, 24 days holiday plus bank holidays rising to 30 days with service, enhanced family and sickness pay, an Employee Assistance Programme, and life insurance at four times your salary. Working hours are 7:45 am to 4:30 pm Monday to Thursday and 7:45 am to 1:30 pm on Friday.

last updated 33 week of 2026