Application Architecture and Development

About us:

We are a venture of senior professionals, based in Portugal and Belgium.

Our core value is team collaboration, enhanced in a developer-first culture.

API-centric thinking is what we do best.


We aim to empower small businesses by sharing our knowledge to build their applications. We help corporates to execute innovation by sharing our passion for technology. 

We make sure our clients are technically ready for growth.


We are strong believers in bundling expertise and happiness.

Expertise for data-driven and open source technology to develop at a lower cost, spare time and adapt easily together. We collaborate through virtual teams.

Happiness for creating ‘wow’ experiences with an open, collaborative approach and diverse backgrounds.

We can help you with:

  • Application architecture design
  • Application development and refactoring
  • Technology audits (feasibility and SWOT)
$50 - $99 / hr
10 - 49
Show all +
Lisbon, Portugal
other locations
  • Quantum Building · Oktrooiplein 1
    Gent, VOV 9000


Key clients: 

BNP Paribas Fortis, Teamleader, Hello Bank!, TUI, MobieTrain, Survey Anyplace, Daltix, Sympl, VRT, KBC,, AXA, CO.STATION, Moovly, Proxyclick, Fan Arena, Poppr, Earfy, Eandis

BNP Open Banking Portal Image

BNP Open Banking Portal

We have built a PSD2 compliant Developer Portal for BNP Paribas Fortis.

The Open Banking Portal includes custom made features such as Sandbox, Test data, Console, API products, etc.

Cloudoki was responsible for proposing and leading the full scope of the features, complete application and integration architecture, design, planning, on top of the development.

This portal

features banking-grade security and requirements.

MobieTrain Image


MobieTrain is designed to solve the needs of modern workplaces, including high staff turnover, increased competition and a mobile workforce. Through MobieTrain, learning is fun again with advanced micro-learning techniques and gamified.

We have designed the complete architecture of the application, from Back to Front end.

This product stack is composed not only by the user-facing Mobile application but

also by a custom made management CMS.

Gamification, extensive browser and device support as well as data handling and analytics were just a few aspects we had to integrate into this project.

Visualtalk Image


VisualTalk is a one-on-one professional video consultation platform, that requires virtually no installation. User management, scheduling, auto-logging, notifications and browser fall-backs, it has it all. VisualTalk API and back-end are built entirely on Node.js, the front-end is Backbone.

VisualTalk is built entirely API-based, on a 3-layer architecture, wrapping around several middleware components to

facilitate authentication, the video conferences and automated email.

For this Version 1 of the platform, we opted for a full Node.js environment, and Backbone as front-end framework. This allows for elegant applications, ultra scalability and rapid pivoting or swapping out components in the future.

Earfy Image


Earfy is a custom made Android software for tablets, to translate speech to text, in real time.

Communication between hard of hearing / deaf persons with hearing persons is often complicated. Relying on text interpreters or sign language interpreters is not comfortable. Just putting a smartphone or tablet with a subtitling app on the table would be so much easier. No more booking in advance, no third person

at the table and much lower costs.

The complete architecture and stack has been developed by Cloudoki, in Swift and Node.

TUI/JetAir IoT Hackathon Image

TUI/JetAir IoT Hackathon

TUI/JetAir raised the question for hackathons to stimulate innovation and inspire developers within their company. These HackFridays happened every 3 weeks in both Belgium and the Netherlands, about development, application architecture, internet of things, AR, VR, iBeacons and lean thinking.

We organised parcours and one-offs, inviting external professionals, about:

  • Mobile development
  • API's with Laravel
  • Arduino 101 and advanced, combining with Raspberry Pi
  • iBeacons
  • AR and VR
  • Web app development with Backbone
  • 3-layer architecture

  • ...and many more.


    Sort by

    Web App Dev for SaaS Company

    "...they react very professionally and always go the extra mile to deliver." 

    Willing to refer: 
    The Project
    $200,000 to $999,999
    Jan. 2018 - Ongoing
    Project summary: 

    Cloudoki scoped and developed a web application and identified candidates to build a local development team for continuing development.

    The Reviewer
    11-50 Employees
    Willi Van Boven
    CTO, Mobietrain
    The Review
    Feedback summary: 

    In addition to technical contributions, Cloudoki offered DevOps support and professional, scrum-based project management. Their personable resources and company culture were praised as well. Customers can expect an experienced, adaptable team.  

    The client submitted this review online.


    Please describe your company and your position there.

    My role is CTO of Mobietrain, a SaaS company with a focus on a mobile micro-learning solution for the retail sector.


    For what projects/services did your company hire Cloudoki?

    They helped us from scoping the application till delivering the MMP and continuous development that is still ongoing. They also helped us with finding good resources to set up our own local branch of developers.

    What were your goals for this project?

    Delivering and maintaining a custom web application and finding the right resources to work on it, including migrating them to our own company.


    How did you select this vendor?

    There was a tender that multiple companies applied for. During the selection interviews cloudoki was considered the best company for us.

    Describe the project and the services they provided in detail.

    Custom development of application including frontend, backend and API. PM according to SCRUM methodology. Infrastructure and DevOps setup and maintenance. Recruitment of new people for the project and moving them to our own branch.  

    What was the team composition?

    - 1 PM/SCRUM master - 3 frontend developers - 3 backend developers - 1/2 FTE recruitment


    Can you share any information that demonstrates the impact that this project has had on your business?

    Since we are a SaaS company, our product is key. This is what Cloudoki successfully build together with us. Searching for new resources and hiring them is also the key for the continuation of our product.

    How was project management arranged and how effective was it?

    PM was done according to the SCRUM methodology with a SCRUM master taking care of the development team in close combination with the product owner and myself. It was done very efficiently as there were every now and then very hard deadlines.

    What did you find most impressive about this company?

    The flexibility in combination with their knowledge. Next to that, it was always fun to meet them and have some drinks together... they pay a lot of attention to the culture in the company and this can be seen going out with the team, which was always very relaxed, but again, when working they react very professionally and always go the extra mile to deliver.

    Are there any areas for improvement?

    None for me.

    Overall Score
    • 5.0 Scheduling
    • 4.0 Cost
      Value / within estimates
      They are not the most affordable, but quality has a price!
    • 4.5 Quality
      Service & deliverables
    • 5.0 NPS
      Willing to refer