Software developer in Bussum.

A software developer builds the digital infrastructure your organisation runs on. For a Bussum asset manager, that means a client portal with reporting and mandate administration. For an executive consultant or family office, a case management platform with document workflows and encrypted communication. For a media spin-off from Hilversum, a production tool or licence administration. For SMEs in Gooise Meren, client administration with invoicing, scheduling and an integration to the accounts.

At Appfront we handle the full range of software: web applications, custom back-ends, API integrations and AI components that run on top of that data. We are a building agency with a senior Dutch team that writes the code and deploys it to production itself, not a pure strategy consultancy and not a loose freelance layer.

Many Bussum clients sit in the mid-market segment: too large for a standard package that doesn't fit how they work, too limited in capacity to build a tech team of their own. If you specifically need a mobile app, our app developer page for Hilversum is the right place. It serves the same Gooi region for mobile, while this page covers the wider software picture: web, back-end, integrations and AI.

Software running in production is more than an attractive front end. It has to work for your older client who has no patience for login screens, for your compliance officer who needs to trace every change, and for the first serious error on a Saturday evening close to a tax deadline. We choose a stack to suit each project: TypeScript/Node.js or Python for most back ends, .NET where Microsoft leads, React, Vue, Next.js or Astro for the front end, and PostgreSQL as the default database.

For hosting, we work with AWS (Frankfurt or Ireland), Azure NL or a Dutch cloud provider, with EU data residency as the starting point. We avoid routing client or case data via the US. CI/CD runs on GitHub Actions or GitLab, infrastructure-as-code via Terraform, and monitoring via Datadog or Grafana.

For systems that involve AI, such as a copilot over your case archive, a summarisation pipeline for due diligence material, or a retrieval engine over client correspondence, we work with retrieval-augmented generation on your own content, with evaluations, logging and consent management from sprint one. We process client material through a dedicated pipeline on your own cloud, so that you remain the owner of the data and model outputs.

For compliance-sensitive sectors (financial, legal, tax), we start with a GDPR and sector check (Wwft, FBP code of conduct, Wta, Bft professional rules). For clients with confidential files, we work under team-level NDAs and in separate development environments. At your request, we can carry out work entirely on your own infrastructure, with key management under your control.

A project begins with an introductory call: half an hour to an hour in which we discuss the problem you want to solve, for which users, and which systems are already in place. It is free and without obligation. Sometimes the outcome is that you do not need custom development at all, and an existing package or SaaS solution will do. Sometimes custom development is indeed the right answer, for example because your mandate workflow or client reporting cannot be neatly fitted into an off-the-shelf product.

For a suitable use case, we plan a discovery: a defined phase in which we sharpen the solution around modules, integrations, compliance requirements and user roles. We deliver a concrete plan covering scope, timeline and budget. For financial and legal practices, we almost always start with a brief technical due diligence of your existing stack: which accounting package, which case management system, which integrations. We would rather not replace what already works well.

Next comes the build, carried out in sprints. At the end of each sprint, something working is running, even if it is initially limited, so you can steer the project early. We work in your own repository, with code review, automated testing and a staging environment. For Bussum clients, there is often a fixed onsite moment at your office; in between, stand-ups and review sessions take place by video.

After go-live comes maintenance and ongoing development. Software requires upkeep: libraries receive security updates, and users raise new questions. We offer ongoing support or hand over neatly to your own team or an external systems administrator. For clients without in-house technical capacity, a continuous maintenance contract usually works best; for clients with an in-house technical coordinator, a hybrid model often works well.