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Portfolio

Our Projects

Three showcased examples plus additional work referenced in client feedback—integrations, product engineering, operations software, and specialized systems.
Payment integrator

Payment platform integrator

E-mobility

A payment platform that integrates multiple providers across three continents. Robust backend logic and an intuitive frontend plug into existing systems, while a company dashboard provides real-time tracking of transaction status so finance teams stay in control.

  • Multi-provider payment integration across three continents.
  • Backend orchestration with an operator-facing frontend and finance dashboard.
  • Technical leadership on roadmaps, prioritization, and delivery structure.

Outcome: Client feedback highlights on-time delivery of a payment terminal to market alongside high-quality integration work.

“Working with Welin has been an outstanding experience. Their ability to deliver innovative technical solutions while maintaining a strong focus on strategy and team cohesion has been transformative for our projects. Welin's expertise was pivotal in successfully navigating multiple products and initiatives. Their technical guidance and leadership were instrumental in developing high-quality solutions and the on-time delivery of a payment terminal to the market. Welin also excels at setting realistic roadmaps, prioritizing tasks, and structuring high-performing teams. They foster a collaborative and motivated environment, ensuring every team member contributes their best to achieving project goals. Their foresight, adaptability, and commitment to delivering excellence make them a trusted partner in driving success. I highly recommend Welin to any organization seeking strategic and technical leadership to bring innovative projects to life.”
Steffen · Senior Product Manager · E-mobility
Smart Farm

Smart Farm

IoT food

An IoT and app-driven product for urban households to grow produce at home. Sensors monitor seven key metrics, automate growing conditions, and keep the experience hands-off for end users.

  • IoT product from roadmap through market-ready implementation.
  • App and device experience built around seven monitored growing metrics.
  • Hands-off automation for end users growing produce at home.

Outcome: Client feedback describes turning an idea into a viable, market-ready Smart Farming product.

“Partnering with Welin was a game-changer for SmartFarming. From the outset, their expertise in IoT and product development stood out, helping us turn an idea into a viable, market-ready product. Welin's team guided us through every step of the journey—crafting a clear roadmap, providing valuable technical insights, and ensuring we maintained a sharp focus on building a product that truly meets user needs. Their ability to combine strategic vision with hands-on implementation was invaluable to our success. If you're looking for a partner who understands innovation and can execute with precision, I wholeheartedly recommend Welin.”
Tomas · Co-Founder · IoT food
Inventory management solution

Inventory Management Solution (IMS)

Operations

An inventory management system for companies of all sizes. Track stock, get alerts when levels are too high or low, automate purchase orders from a dashboard, and act on real-time operational data.

  • Stock tracking with high/low alerts and purchase-order automation.
  • Dashboard for operational decisions on inventory levels.
  • Back-office software designed to scale with company size.

Outcome: Built for teams that need reliable inventory visibility and automated reorder workflows.

More from client feedback

Additional systems and engagements described in published testimonials—not all have a dedicated portfolio image on this site.

  • Laboratory information management

    Laboratory operations

    Laboratory information management systems covering sample entry through result reporting, described in client feedback as intuitive and aligned with ISO 17025:2017 requirements.

    “Welin is an outstanding partner with exceptional expertise. I had the opportunity to work alongside them on a project for the International Atomic Energy Agency, where Welin served as an expert in developing a regional database for the Data Exchange Committee of RALACA. Additionally, I am familiar with the laboratory information management systems they developed, which cover everything from sample entry to result reporting. These systems are intuitive, highly functional, and fully compliant with the requirements of the ISO 17025:2017 standard. Since we began collaborating, Welin has consistently demonstrated remarkable responsibility, creativity, and intelligence in addressing requests and meeting project needs. I wholeheartedly recommend Welin, confident that any task entrusted to the team will be executed with excellence and success.”
    Yajaira · Department Lead · Energy

  • Regional data platform (IAEA / RALACA)

    International public sector

    Regional database work for the Data Exchange Committee of RALACA, delivered as expert partner engagement for the International Atomic Energy Agency.

    “Welin is an outstanding partner with exceptional expertise. I had the opportunity to work alongside them on a project for the International Atomic Energy Agency, where Welin served as an expert in developing a regional database for the Data Exchange Committee of RALACA. Additionally, I am familiar with the laboratory information management systems they developed, which cover everything from sample entry to result reporting. These systems are intuitive, highly functional, and fully compliant with the requirements of the ISO 17025:2017 standard. Since we began collaborating, Welin has consistently demonstrated remarkable responsibility, creativity, and intelligence in addressing requests and meeting project needs. I wholeheartedly recommend Welin, confident that any task entrusted to the team will be executed with excellence and success.”
    Yajaira · Department Lead · Energy

  • E-commerce platform

    E-commerce

    End-to-end e-commerce delivery—from ideation and design through development, testing, launch, and ongoing performance focus.

    “Working with Welin has been an absolute game-changer for our e-commerce business. From the very beginning, they were instrumental in bringing our vision to life, guiding us through the entire process—from initial ideation to the platform's release and ongoing performance metrics. Their team managed every step with precision and expertise, including planning, design, development, testing, and launch. They didn’t just deliver a functional e-commerce platform; they created a seamless, user-friendly experience tailored to our needs and goals. Welin’s ability to turn complex ideas into practical solutions was truly impressive, and their commitment to our project’s success never wavered. Thanks to their work, we’ve achieved a strong online presence and measurable growth since launch. I highly recommend Welin to anyone looking to build or enhance their e-commerce platform.”
    George · Founder · E-commerce

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