Marcel R. G. Berger

Background

More than 20 years building software that has to work, from systems that regulated industries rely on to apps I build and run myself:

• Systems that grow with the business, for banks, insurers, energy companies and public authorities (microservices). Microservice and event-driven architectures for banks, insurers, energy companies, public authorities and financial services, built for high availability and horizontal scaling.
• Logins that only let the right people in, for regulated industries (identity and access). Roles, permissions, single sign-on and segregation of duties, set up so that every access can be traced and reviewed.
• Payments that clear in seconds (instant payments). Real-time payment processing with low latency, built for round-the-clock operation.
• Apps in the App Store and Play Store. B2C and B2B apps for iOS, Android and macOS, built, published and run myself, from the first screen to the store listing.
• Every change tested automatically and shipped safely (CI/CD). Automated build, test and release pipelines through to store delivery, so every release runs the same way.
• Running and updating from one hand (DevOps). Containers, Kubernetes, GitOps and monitoring in my own production, so the person who builds your system also knows how to run it.
• Process automation. Long-running business processes modelled in BPMN and automated, instead of manual steps between systems.
• Technical leadership. Founded and ran a software company: team, budget and client delivery from requirements to production.

That shapes how I build apps today: access, audit trail, data location and exit are planned in from the start, not added when a customer asks.

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