BizXpert's Journey to Modernization with Wolkk
BizXpert is a cloud-based invoicing and inventory management platform designed for freelancers and small business owners. With over 200,000 downloads and more than 3 million invoices sent, BizXpert has been helping businesses streamline billing, manage expenses, and track inventory for over a decade. Its intuitive interface allows users to create professional invoices, accept online payments, and monitor cash flow, all without the complexity of traditional accounting software. BizXpert's mission is simple: make invoicing and business management effortless for small businesses.
After years of success, BizXpert faced a critical challenge: the technology stack was aging, and the user experience no longer matched modern expectations. The design felt outdated, and performance issues slowed down development. To stay competitive, BizXpert needed a complete platform refactoring. Zoltan Kaman, CEO of BizXpert, considered outsourcing as a way to accelerate the process, but past experiences with offshore firms had left him skeptical. When he first heard about Indonesia as a tech outsourcing destination, his reaction was: "Indonesia? Isn't that risky?"
What changed his mind was Wolkk's transparent, all-inclusive pricing and proven track record. "The conversation felt different, like talking to a fellow founder, not a sales rep," Zoltan Kaman outlines the sales process.
Wolkk's approach promised not just developers, but a fully integrated team of experts, including UI/UX designers, Frontend and Backend developers, ready to deliver results without micromanagement.
"Working with Wolkk was a game-changer. For the first time, outsourcing felt like an extension of our own team."
— Zoltan Kaman, CEO of BizXpert
Transformation Results
Fresh, Cleaner Interface
Modern UI with no clutter, just the essentials you need to get paid
Easier Navigation
Fewer menus, clearer labels, and a layout that makes sense
Fewer Clicks to Create
Smoother, shorter flow for invoice creation
Fully Mobile-Optimized
Natural invoicing experience on phone or tablet
More Payment Options
PayPal, Apple Pay, Google Pay, or Venmo support
Permanent Team Integration
Development team became integral part of BizXpert's roadmap
The Journey
BizXpert started with a pilot project: a small team focused on refactoring the core platform. Wolkk recruited experienced engineers and added a talented UI/UX designer to modernize the interface.
Within 4 weeks, all developers were onboarded and fully integrated into BizXpert's SCRUM processes. By the second month, their code quality matched BizXpert's Europe-based team. The collaboration was seamless—daily stand-ups, sprint reviews, and shared repositories made the remote team equivalent to in-house developers.
The results were transformative:
- The new version of BizXpert launched successfully, delivering a modern, scalable platform.
- BizXpert was so impressed with Wolkk's team that they decided to take over the development team permanently, making them an integral part of their future roadmap.
Today, BizXpert continues to grow as a leading invoicing solution for small businesses worldwide, powered by a technology foundation built for the next decade.
The Anker Group: High-Quality Software for German Retailers
The Anker Group, based in Bielefeld, Germany, was faced with the problem of a shortage of skilled workers and rising labor costs, which threatened the company's continued growth. The solution was found in the establishment of a dedicated software development team in Southeast Asia, which gave the company a decisive competitive advantage.
The Anker Group, which began producing bicycles and sewing machines in 1876 and introduced cash registers in 1900, has undergone a promising development to become an established POS provider with a long tradition.
As part of its strategy to develop its own software platform, the Anker Group entered into a partnership with Wolkk, an Indonesian provider of outsourcing solutions, in September 2022. Wolkk took over the complete recruitment, onboarding and management of the team and has since proven to be a competent local partner.
"Through our team of experts in Indonesia, we have gained a competitive advantage in the market that continues to drive the strategic growth of the Anker Group. Our local partner supports us in our search for the best talent and helps us to manage the team efficiently and with high quality standards."
— The Anker Group, Managing Director
The Dedicated Team Model
Trusting and long-term partnerships are important to the Anker Group, which is why it has opted for a dedicated team model. Similar to a joint venture, the entire development team is set up exclusively for Anker and managed jointly with Anker. In this constellation, it is possible to train the employees sustainably, to retain them at ANKER in the long term and to permanently implement high quality standards.
Through an efficient selection process, Wolkk was able to recruit the brightest talents from the Indonesian technology scene. Within a few weeks, the team became operational and was able to start developing an innovative software module.
The team members, who are spread across different regions of Indonesia, work together remotely for the most part. Every three to four months, all colleagues meet for a week in Bali to learn and work together. This strengthens team spirit and trust, which is essential for achieving the goals.
Technology Stack
Platform Details
Flutter technology was selected for the front end of the innovative retail platform, as it guarantees operating system independence. The application was to run on mobile devices such as tablets and smartphones as well as on desktop systems under Windows or Linux.
The backend runs in the Microsoft Azure Cloud and was developed in JavaScript and Golang. The platform is based on micro-services and integrates seamlessly with various ERP, CRM, payment and other third-party systems.
Team Structure & Agile Process
Agile Organization
The team, consisting of designers, product owners, developers and QA, is organized agilely according to the principles of SCRUM. The project managers and consultants are based in Germany and support customers in German. They are fully integrated into the development processes in English.
Tools & Workflows
The two-week sprints are planned entirely in Jira and all information is recorded in Confluence. This ensures transparency and seamless collaboration between the German and Indonesian teams.
Project Success
Thanks to the flexibility of the solution, the Anker Group was able to contract and successfully deliver two major customer projects for the platform in a short space of time. Customer-specific requirements were successively implemented in several sprints and regularly coordinated with the customers. The success of the first customer projects led directly to the acquisition of follow-up projects.
Another project involving the integration of a new AI component and an IoT solution is currently in the test stage.
Goals Achieved
Scalability
Thanks to a large talent pool
High Quality
Premium software standards
Efficiency
Through low labor costs
Speed
Short time to market