Senior Excel/VBA & Office Application Developer (Part time)

Quick Facts

• Role: Professional software engineer specializing in Excel/VBA
• Rate: 40–52 EUR per hour
• Cooperation model: B2B (Part time)
• Start date: ASAP
• Technology stack: Excel, VBA, Microsoft Office

Description

Design, build, and support business applications based on Excel, VBA, and other Microsoft Office technologies. Create modular, maintainable solutions with properly documented code, structured error handling, debugging, and systematic testing practices. Work with data structures, databases, external data sources, and integrations, contributing across the full development lifecycle from requirements analysis to release.

Responsibilities

• Design, build, and support business applications using Excel, VBA, and other Microsoft Office technologies
• Build solutions using modular application architecture, classes, and reusable components
• Write high-quality, maintainable, and properly documented code within an established development framework and shared codebase
• Implement structured error handling, debugging, and systematic testing practices
• Work with data structures, databases, external data sources, and integrations with other systems
• Contribute across the full software development lifecycle (requirements analysis, implementation, code review, testing, release)
• Work collaboratively using Git-based development workflows
• Participate in development sprints and continuous improvements of engineering standards and shared components
• Use AI-supported development tools while staying accountable for architecture, security, correctness, and overall code quality
• Participate in client and project meetings, discuss technical/business requirements, and present completed functionality with the Product Owner

Requirements

• Several years of professional software development experience, with significant commercial experience developing solutions in Excel/VBA
• Proven experience building and maintaining complex Excel/VBA business applications (not only scripts/reports/macros from other roles)
• Very good understanding of software engineering principles, including modular application architecture, object-oriented concepts and VBA classes, reusable components, structured error handling, debugging and testing, maintainable and documented code
• Experience working with databases and external data sources from Office/VBA applications
• Experience using Git or another professional version-control workflow
• Ability to understand and contribute to an existing framework and shared codebase
• Experience working within a structured development process involving reviews, testing, and releases
• Strong analytical and problem-solving skills with high ownership
• Confidence working directly with customers and discussing requirements and delivered solutions
• Strong spoken and written English for meetings and client presentations

Benefits

• B2B part-time cooperation with a 40–52 EUR per hour rate
• Work with a development framework and shared codebase
• Opportunity to use AI-supported development tools with full accountability for solution quality