What We Do
Rofoz works with teams as an end‑to‑end technology partner. Our focus is on shaping architectures, clarifying requirements, and building systems together in a collaborative, iterative way. We combine hands‑on engineering with AI‑supported workflows to help teams move from concept to production with clarity and stability.Our work spans backend platforms, web and mobile applications, embedded and IoT systems, and internal tools for data and operations. We approach each project holistically—aligning technical decisions, implementation, and continuous improvement as a single, connected process.Our work spans backend systems, frontend/web, Android and iOS apps, embedded and IoT systems, and internal tools for data analysis and automation. The goal is always the same: reduce complexity, improve iteration speed, and make development processes predictable.
How We Work
We work in close collaboration with teams, starting from early architectural discussions and staying involved through implementation and ongoing evolution.1. We learn how your systems operate today and what constraints matter most.
2. We design or refine the architecture and workflows—supported by AI and matched to your stack.
3. We build, iterate, and adjust together, ensuring the system remains scalable, maintainable, and easy to evolve.
References
Belter — provider of modular parcel-locker systems for carriers and urban logistics. Rofoz is their long-term technology partner, contributing to system architecture, full-stack development (firmware, backend, cloud, mobile), operational tooling, and AI-assisted development workflows that support ongoing iteration and scalability.
Rofoz had the privilege of collaborating with Suitsupply, a renowned Dutch men’s fashion brand, on their migration to a new Order Management System (OMS) and the renewal of their accounting integration.
Transavia is a Dutch low-cost airline and a wholly owned subsidiary of KLM.Rofoz helped Transavia in improving their online customer onboarding process and Azure AD B2C/B2B migrations from legacy systems. Rofoz also took part in the CMS selection process for replacing their legacy Sitecore implementation.
LeasePlan is a global fleet management and driver mobility company of Dutch origin established in 1963 and operating in 32 countries.LeasePlan Digital is the department of LeasePlan which is responsible for the digital transformation of LeasePlan.Rofoz worked on designing architectures and implementing new event-based microservices that integrate legacy and new LoB applications. Mostly focusing on order management integrations to legacy systems in Europen countries.
Fourthline is a young, award winning fintech start-up that is specialized in digital KYC (Know Your Customer).Rofoz helped Fourthline’s AI/Machine Learning team to scale their amazing algorithms by converting them into Dockerized services/APIs. Additionally, created products that combined multiple proprietary Fourthline ML services with 3rd party cloud services to support and compare their performance.Rofoz also developed a full-fledged annotation tool, that helped a team of annotators to annotate tens of thousands of images per day. The annotated images were used as training data for every algorithm/model that was being developed by the AI/Machine Learning team.
Bonfiglioli provides tailor-made industrial solutions that are based on gear motors, drive systems, planetary gearboxes and inverters. The Italian company was established in 1956 and currently operates all over the world.Rofoz develops IoT telemetry solutions for Bonfiglioli using Azure IoT Products for device management, real-time analytics, storage and machine learning.
Salto KS is one of the coolest startups in Amsterdam. It is an IoT company where the “T” stands for smart door locks that can be unlocked with Salto KS Mobile APPs (iOS, Android).The locks get connected to the Cloud and managed via the mobile and web APPs.To have a look at Salto KS’ cool products visit saltoks.com.KSCore (prev. Clay Locking Platform)
Rofoz had the privilege to assist the design and development of Salto KS’ revolutionary API called KSCore.KSCore enables businesses to incorporate all features of SaltoKS locks into their own platforms/apps.KSCore is built using Microsoft .NET technologies, and it is hosted on Azure.For more details about KSCore visit this link.Mobile Key Feature
Mobile keys are digital keys that are stored on the user’s mobile device (Salto KS App). They enable secure access to BLE enabled Salto KS locks. It’s a feature that completely gets rid of the mechanical key or tag provisioning process for temporary staff and short-term tenants.Rofoz designed a proprietary PKI solution that provides end to end security between locks and mobile devices of users.Communications Server
Rofoz helped Salto KS with the design and development of the cloud communication server that enables communication with the locks.It is a .NET based TCP socket server which is able to maintain stable, always-on and secure TCP connections. A single instance of the server is able to handle 1000s of TCP connections with a very low memory footprint.
