Sierra Experts
Overall Review Rating
4.4 (6 Ratings)
Overview
Sierra Experts team is passionate about what they do here. They love technology, design, and development. Their skills allow them to make compelling experiences that your business and customers deserve. Because they are smaller, theirpassion and agility means your product or business will never suffer. They take your business to the next level of extension with their enterprise solutions that add power to your industry and increase operational efficiency and potency.
Services
- Logo Designing
- Ruby on Rails
- ICO consulting Blockchain Implementation
- Web Development
- Game Development
- Private Blockchains
- Advertising, Media
- iOS App Development
- Android App Development
- Cross Platform Development
- Mobile App Development
- MVP Development
Industries Served
Sierra Experts Reviews
Have a look at these client reviews on previously delivered projects.
Samantha Doyle
Product Manager - Reef Digital Pty LtdSupport response times that exceed what we achieved with an internal team
What set this team apart in practice was their engineering judgment — specifically, their willingness to tell us when our requirements were wrong and explain what to do instead. Not every vendor does that. The consultative element elevated the final output well beyond what our original brief described. We ended up with something better than what we had asked for, which is not a sentence I expected to be writing in a review.
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.
Matthieu Renard
Directeur Technique - Lumière Technologies SASComplex project, zero drama. That is how you know the project management is real.
We received proposals from six vendors. Four of them quoted us prices that bore no relationship to the actual scope. This team came back with something realistic and then delivered against it exactly. I have worked on enough technology projects to know that the gap between what is proposed and what is delivered is where trust gets destroyed. There was no gap here. What was promised is what we got, and the ongoing relationship we have built from this is something we intend to continue.
Project summary
A new care pathway required patient data to move between systems in a way our current architecture did not support. The integration complexity was beyond what we could handle in-house.
Charlotte Nevill
Head of Product - Croydon Digital Agency LtdTechnically strong, commercially fair, and genuinely good to work with
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
Warehouse management errors were accumulating at a rate our clients could see. A proper WMS was the agreed fix — we needed a development partner who had built one before.
Tobias Lindemann
Leiter Digitalisierung - Lindemann Industrie GmbHInfrastructure spend down by a third. Same performance, better architecture.
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
A failed engagement the previous year had made us more rigorous about vendor selection. We took the time to find a partner we actually trusted before we committed.
Siobhan Gallagher
Chief Technology Officer - Northumbria FinTech LtdDelivered what the proposal described. More rare than it should be.
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
The business case had been approved but the internal resource to execute it had not materialised. External delivery was the pragmatic solution.