Custom software development
that fits how you work

We design, build and maintain custom web and back-office applications that fit your processes exactly, from first prototype to production and the years after.Wij ontwerpen, bouwen en onderhouden maatwerk software: web- en back-office-applicaties die precies aansluiten op jouw processen, van eerste prototype tot productie en de jaren daarna.

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100+Projects Delivered

Projects Delivered

100+

Discovery and scope

Custom software development means an application built around one organisation’s own processes, where a packaged product would ask the organisation to change its process. At Isatis that usually means business applications, customer portals, internal tools and web applications. Every build starts with understanding how your organisation actually works: we map the processes, find the friction and agree on a clear scope. The engineers who will build the product sit at the table from day one.

The discovery phase is short: a few focused sessions at your office or ours, with the people who will use the software daily. The result is a shared picture of what we are building and what “done” looks like, agreed before development starts.

Which processes you can automate Welke bedrijfsprocessen je kunt automatiseren

Custom web application developmentEen webapplicatie laten maken

Prototype first

We ship a working prototype early. It is running software: you click through it, test it with your team and steer on what you see. Short iterations with live demos keep the result close to what your business needs.

Course corrections happen while they are still inexpensive. Most of what we build runs in the browser: customer portals, planning tools and the back-office applications that connect to your ERP, CRM or payment provider. The prototype grows step by step into the application your team will use every day, in releases you have already seen.

One team, full lifecycle

The same engineers stay involved across the whole lifecycle: design, build, launch and support. Decisions made early keep paying off later, and there is no handover gap where context gets lost.

With 30+ engineers in Sarajevo and Nijmegen, we work in your time zone, join your stand-ups and demos, and act as an extension of your own organisation. You always know who is building what, and why.

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Production and beyond

From there we take it to production and stay on: maintenance, iteration and support. As an ISO 9001 and ISO 27001 certified partner, structured delivery and information security are part of how we work, and both are checked by an external auditor.

Monitoring, performance and security updates are part of the engagement. We keep improving the product as your organisation grows, and treat your application as a long-term product.

For ST Engineering, we rewrote legacy software on a modern architecture. The first working prototype was already clearly faster, and it showed us where the bigger gain was: the team could add new functionality much more quickly. We built on that base, so new functionality now takes less time to deliver.

Frequently Asked
Questions

Jack van Poll, Co-Founder

Book a 15 min call

Questions about custom software development? Book a 15-minute call before getting started. We reply within 24 hours.

Schedule a call

The cost depends on scope, the number of integrations and the level of finish, so we quote after a short discovery phase, once the scope is clear. After the first call you receive a proposal with team composition, technology approach, timeline and an indicative budget.

An MVP typically takes 2 to 3 months and a full enterprise system 6 to 12 months. Every project starts with a short discovery phase, and you see a first working prototype within the first weeks.

Off-the-shelf software fits when your process is standard and the package covers it without workarounds. Custom software fits when the process is specific to your organisation, when several systems have to work together, or when the limits and licence costs of a package outweigh building your own. In discovery we tell you which applies, also when the answer is to buy.

You do. We build for hand-over from the start: documented code, clear architecture and no vendor lock-in, so your own team or another party can take over whenever you decide.

Yes. We stay on for maintenance, iteration and support, and treat your application as a long-term product. Support contracts range from basic monitoring to a full dedicated support team.

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