Zealous System
Overall Review Rating
4.8 (7 Ratings)
Services
- Digital Strategy
- Web Development
- Motion Graphics
- Android App Development
- iOS App Development
- Maintenance
- Mobile App Development
- Cross Platform Development
- Cloud Provisioning Services
- Branding
- iPhone App Development
- PhoneGap App Development
Industries Served
Zealous System Reviews
Have a look at these client reviews on previously delivered projects.
Reuben Loh
CTO - Marina Bay Ventures Pte LtdFirst QA engagement where the team found bugs before the client did. Consistently.
The platform has been live for six months and is handling three times the transaction volume we scoped for. That is not because we underestimated — it is because the architecture choices made during discovery were genuinely forward-thinking. Most vendors design for exactly what you tell them. This team designed for what you are likely to need. We are already scoping the next phase and there was no question about who we would use.
Project summary
Years of incremental development had left us with a platform that was functional but limiting. A structured rebuild was the agreed path forward.
Niamh O'Sullivan
Director of Product - Munster Digital LtdTechnically strong, commercially fair, and genuinely good to work with
Our stakeholder group was unusually broad — board sponsors, operational users, compliance leads, and an IT team with strong opinions. I have watched vendors handle that kind of environment badly. This team adjusted how they communicated depending on who they were talking to, managed expectations honestly when things shifted, and delivered something that each group considers a success. Getting everyone to agree on that outcome was not straightforward and they deserve credit for making it happen.
Project summary
Our internal team was committed to maintenance and could not absorb a new build of this complexity. An external partner was the only way to hit the timeline.
Khalid Al-Mansoori
Director of Innovation - Emaar Digital GroupQA coverage that finally made Friday deployments a professional activity
I have been through several technology implementations in my career. The pattern I am used to is: detailed proposal, optimistic timeline, scope creep, overrun, excuses at the end. This engagement broke that pattern at every stage. The timeline was realistic from the start. Changes were managed through process. The final delivery matched what was agreed. Simple, but uncommon.
Project summary
OTA update orchestration for our software-defined vehicles needed to be bulletproof. The liability implications of getting it wrong were significant enough to justify specialist development.
Vikram Srinivasan
Head of Platform - Cascade EdTech SolutionsSecurity findings explained clearly to our non-technical board. Genuinely uncommon.
Looking back, what strikes me most is how little drama there was. Real technology projects have problems. This one had them too — but every problem was flagged before it became a crisis, every scope change was handled through a proper process, and every risk was managed rather than buried. Our project manager said it was the smoothest vendor engagement he had been involved in. Given how complex the technical requirements were, I think that reflects genuine delivery maturity.
Project summary
As a technology company ourselves we hold our vendors to the same standard our clients hold us to. Finding a partner who could meet that bar without being hand-held through the process was the challenge.
Marcin Lewandowski
Engineering Manager - Kraków Digital Sp zooInfrastructure spend down by a third. Same performance, better architecture.
The technical quality is the obvious thing to highlight. The automated test suite is comprehensive, the deployment pipeline is solid, and the documentation is actually useful rather than written to satisfy a checklist. But the metric I keep coming back to is what has NOT happened since go-live. No 2am incident calls. No emergency patches. No post-launch retrospectives about what went wrong. For a system of this complexity, that outcome is exactly what we paid for.
Project summary
Post-pandemic recovery meant reactivating a customer base that had lost the habit. We needed a platform that would make rebooking as frictionless as possible.