About SI3 Digital
SI3 Digital provide a wide range of solutions & professionals capable to provide everything. They provide tailor-made answers that allow you to optimize, in different production and management aspects, your business. They develop your project by implementing the latest technologies to provide a modern and unique solution whatever your demands. They integrate user experience design, web and mobile development with cutting-edge technologies.
Last updated May 13, 2026
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SI3 Digital Reviews
Write a ReviewCustom pipeline configuration that maps exactly to how our team actually sells
Hyun-Su Lim / Director of Platform - Hanam Tech SolutionsMay 01, 2026
Project summary: B2B customer churn was concentrated among accounts that had complained about portal usability. We needed a complete redesign of the self-service experience before the next contract renewal cycle.
Six months after go-live our platform is processing three times the transaction volume we specified in the original brief. The architecture choices made during discovery accommodated that growth without remediation work. That is the difference between a team that designs for what you tell them and a team that designs for what you are likely to need. We are in conversation about a Phase 2 engagement and I expect to be using this partnership for several years.
Senior-level engineering presence throughout the entire project, not just during the pitch, honest and commercially fair handling of scope changes, codebase that our internal team praised on review
The engagement was priced at the quality level rather than the budget level. We evaluated the alternatives and concluded that the delta was a reasonable premium for the reduction in delivery risk
Questions & Answers
Headless CMS that finally allowed our designers and developers to work in parallel
Tobias Lindemann / Leiter Digitalisierung - Lindemann Industrie GmbHFeb 26, 2026
Project summary: The project had a board-facing delivery date tied to a strategic initiative. We needed a partner who would treat that date as their own, not ours.
The thing that retrospectively seems most significant is how little drama there was. Complex technology projects tend to accumulate incidents, escalations, and tense conversations. This one did not. Problems were surfaced before they became incidents. Scope changes were handled with process rather than conflict. Risks were managed rather than avoided. That level of maturity is rare in my experience and it made the delivery feel almost effortless from our side, which I know it was not from theirs.
Architectural decisions designed for longevity rather than just the current brief, thorough automated test coverage, post-launch stability that validated every technical choice made during discovery
Their discovery process is more rigorous than we were accustomed to and required more preparation from our side than we had initially allocated — but the quality of what followed justified every hour of it
Questions & Answers
Platform engineering work that let our product teams move independently at last
Beatriz Cavalcanti / Chief Digital Officer - Cerrado Tech SAFeb 08, 2026
Project summary: As a technology business ourselves we apply the same scrutiny to our vendor selection that our clients apply to us. We needed a delivery partner who could meet a standard we would be comfortable being measured against.
We had worked with three agencies before this engagement. The comparison is not flattering to the others. What distinguished this team was a systematic approach to understanding the problem before proposing a solution — something that sounds obvious and is practiced far less often than it should be. The delivery phase ran to schedule, the codebase is clean enough that our internal engineers made positive comments during handover review, and we have not logged a critical incident in five months of live operation. We intend to use them for our next phase of work.
Production system that has performed as specified since go-live without remediation work, documentation thorough enough to support internal maintenance, knowledge transfer that left our team genuinely capable
The engagement was priced at the quality level rather than the budget level. We evaluated the alternatives and concluded that the delta was a reasonable premium for the reduction in delivery risk
Questions & Answers
Technically rigorous, commercially grounded, and a genuine pleasure to work with
Imogen Tanner / Head of Engineering - Outback Data SolutionsFeb 03, 2026
Project summary: Our engineering capacity was committed to maintaining existing systems and could not absorb a net-new build of this complexity. An external partner with the right skills was the only viable option.
Six months after go-live our platform is processing three times the transaction volume we specified in the original brief. The architecture choices made during discovery accommodated that growth without remediation work. That is the difference between a team that designs for what you tell them and a team that designs for what you are likely to need. We are in conversation about a Phase 2 engagement and I expect to be using this partnership for several years.
Commercially transparent throughout — no hidden assumptions, no bill shock at the end, change requests that were fair and clearly explained rather than used as a margin-recovery mechanism
Their discovery process is more rigorous than we were accustomed to and required more preparation from our side than we had initially allocated — but the quality of what followed justified every hour of it
Questions & Answers
Software that solved the actual problem rather than the stated one — a crucial difference
Adriana Voss / Director of Platform Engineering - Cascadia Digital VenturesJan 17, 2026
Project summary: A previous engagement had delivered something that worked in staging and struggled in production. We approached this project with greater rigour in vendor selection as a result.
What made the most difference in practice was the quality of the engineering judgment on this team. Not the ability to execute a specification — that is a baseline expectation. The ability to recognise when a specification was suboptimal, explain why, propose an alternative, and support the client in making a decision about it. That consultative dimension elevated the output beyond what the brief described and resulted in a product that is more fit for purpose than the one we had originally specified.
Commercially transparent throughout — no hidden assumptions, no bill shock at the end, change requests that were fair and clearly explained rather than used as a margin-recovery mechanism
The quality of documentation they produce means our team needed to set aside dedicated review time to do it justice — a minor scheduling point rather than a genuine criticism
Questions & Answers
Best mobile app partner we've ever worked with
Thomas Müller / Engineering Manager - TechHaus GmbHOct 07, 2023
Project summary: Our hospitality group required a guest experience platform integrating PMS, CRM, and loyalty programmes.
We evaluated five vendors before choosing this team, and the decision has been fully validated. Their technical skills are top-tier, but what really sets them apart is their commitment to understanding the business context behind every requirement. The project was delivered on time, the solution is robust and scalable, and the knowledge transfer was thorough. A truly outstanding engagement from start to finish.
Strong engineering skills, clear and consistent communication, flexible and collaborative approach
Wish we had engaged them sooner; no meaningful issues to report
Questions & Answers
Professional team that delivers excellence every time
Jennifer Lee / Managing Director - Nexus Ventures LtdMar 01, 2022
Project summary: Our hospitality group required a guest experience platform integrating PMS, CRM, and loyalty programmes.
From day one, the team felt like an extension of our own organisation. They immersed themselves in our domain, challenged us to think bigger, and delivered a solution that is both technically sound and strategically valuable. The project came in on time and within budget, which is rare for an engagement of this complexity. We are delighted with the outcome and look forward to a long-term partnership.
Innovative thinking, meticulous attention to detail, reliable delivery, transparent reporting
Slightly higher day rate than some alternatives, but the quality justifies every penny
Questions & Answers
Truly impressed with their expertise and commitment
Anna Kowalski / Project Lead - EuroSoftware GmbHFeb 20, 2022
Project summary: We engaged them to build a comprehensive solution addressing our core operational challenges and growth objectives.
From day one, the team felt like an extension of our own organisation. They immersed themselves in our domain, challenged us to think bigger, and delivered a solution that is both technically sound and strategically valuable. The project came in on time and within budget, which is rare for an engagement of this complexity. We are delighted with the outcome and look forward to a long-term partnership.
Innovative thinking, meticulous attention to detail, reliable delivery, transparent reporting
Wish we had engaged them sooner; no meaningful issues to report