APEX Developer

We're hiring a Software Developer who is responsible for the technical aspects of our TRACT platform. He/she is responsible for developing and implementing interfaces and other components of our TRACT platform.

This position is applicable in Arnhem, The Netherlands

You will be part of an IT Team of three.

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What is required?

Bachelor’s level thinking and problem‑solving skills, or equivalent through relevant work experience.

Minimum of three years of direct work experience in coding in Oracle PL/SQL and Oracle APEX.

Knowledge of Oracle SQL Developer, or PL/SQL developer, Jira or Wrike, and Oracle performance tuning

Must have the ability to develop and understand processes, flowcharts, and IT structures and systems.

Must have a strong affinity with Supply Chain and construction projects.

What will you get?

Hybrid Work - up to 2 days from home

Generous holiday allowance per local country policies.

A Great Place to Work

Development & training opportunities

A supportive, people-first culture

Development experience with Oracle 19c database and Oracle APEX 24.2 or above
Write SQL queries and create PL/SQL functions, procedures, and packages that are optimized
Create and maintain APEX pages, Master/Detail Forms, APEX Collections, Interactive reports etc.
Create processes and scripts to load data from external file sources into Oracle Database
Provide production support for Oracle APEX Applications
Performance tuning of SQL, PL/SQL code
Follow best practices to document and track changes, synchronize development-UAT-Production environment
Troubleshoot operational issue - Trace Data, logic, and report back on root cause

Develop and provide support to all system interfaces and coordinate with stakeholders to provide specifications for all core modules

Analyze and ensure an efficient transition of all technical design documents and develop various SQL packages to provide support to all applications
Monitor and recommend changes if required to all PL/ SQL packages and provide stored procedures, design, and develop various relational databases
Used PL/SQL Tables, Cursors to process vast volumes of data, and used bulk collect for a mass update as a performance improvement process
All other duties as assigned.

At Caliber.global, you’ll help build and enhance the APEX applications behind our Tract platform, making project management smarter, faster, and more automated for colleagues, customers, and partners. By developing workflow‑optimizingmodules and leveraging AI, you drive more efficient and sustainable operations.

Working closely with end‑users, you turn real needs into intuitive solutions—where your impact and innovation truly matter.

Peter Kool

Director IT

, Caliber.global

You can grow with Caliber.global.

At Caliber.global, your career path is yours to shape. We’re a fast-growing company, and that growth brings exciting opportunities for those ready to take initiative and step into new challenges. Whether you're looking to deepen your expertise, broaden your skill set, or explore new roles, we support your ambitions with training, courses, and a culture of continuous learning.

We believe that growth doesn’t follow a one-size-fits-all path — and that’s a good thing. Here, knowledge-sharing is part of daily life, and self-initiative is not only welcomed, it’s celebrated. When you grow, we grow.

Apply now

Working at Caliber.global.

Caliber.global was established by Jeroen Scholten to provide store development supply chain solutions. Today, it is a tech-driven, specialized supply chain provider. The company has evolved from a vision to support retail store construction supply chains to managing over $1 billion in spending. We help our clients unlock value and manage risks by offering support in:

Construction Supply Chain

Distribution

Inventory Management

Capacity Planning

Logistics (3PL and 4PL)

40 employees worldwide

Average age 30 years

Two days from home

Headquarter in Arnhem

50/50 male vs. female

Offices in various locations

Discover our team

Anjali Chawla

Functional Analyst

I joined Caliber in early 2025 as a Functional Analyst in ETL ; drawn by the strong alignment between my personal values and the company’s core principles. Since then, it’s been a great journey. Even though I came in with limited experience in the supply chain space, my colleagues made sure I got up to speed with precision.

One thing I love most about Caliber is how approachable everyone is. You can walk up to anyone with a question or a problem, and they’ll take the time to brainstorm collectively. It makes solving challenges feel like a true team effort. I feel lucky to be part of a culture where everyone’s voice matters and where ideas are not only welcomed but often acted on.

Outside ofwork, I enjoy playing snooker, and I also love spending time baking and swimming- it’s my way to unwind.

Get in touch

Chris Jansen

Senior Developer

What do you do for the company?
I joined Caliber in late 2025 as a Senior Oracle APEX Developer, attracted by the freedom to think creatively and build real, meaningful solutions. Even though we work with tools like ticketing systems, deployment pipelines, and AI solutions, nothing here isset in stone. If you come up with a smart idea, people genuinely listen andencourage you to take it further.

Why did you decide to work for this company?
What I appreciate most is how supportive and approachable everyone is. Colleagues are always willing to help, share knowledge, or brainstorm together, creating an environment where you can grow quickly and feel truly valued.

What do you do in your spare time? Outside of work, I’m very active. I enjoy running and cycling to clear my mind and recharge.

Get in touch

First interview.

First interview via MS Teams or in person with HR, personal and requirements. This is your first impression.

Second interview.

Second interview on site with Supervisor and team member, deepdive on knowledge.

Third interview.

Optional third interview with CEO/ COO/ CFO.

Offer accepted.

Offer accepted and you’ve got the job! Now it’s time to celebrate and prepare for your first day.

Want to join Caliber.global.

For more information about this role, please contact our Human Resource Manager, Mariska Romein, or apply directly.

Contact Mariska

Connect.

Construct.

Care.

APEX Developer

About the APEX Developer role.

You can grow with Caliber.global.

Working at Caliber.global.

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