Transform Innovate Grow

Architecture

Event-driven services with separate read and write models where the load genuinely diverges. One deployable while the team is under ten — microservices are an org chart, not a default.

Stack choice

Decided against your constraints — the skills you have, the market you hire from, the estate already in place — rather than whatever we used last. Every choice justified in writing.

Data

A relational source of truth with point-in-time recovery, a cache layer for state that can be lost, and a durable event log wherever history has to be replayable.

Interfaces

Contract-first APIs with explicit versioning and deprecation windows, and idempotency on every mutating endpoint so a retried request never charges twice.

Delivery

Trunk-based development, a disposable environment per change, and staged cutovers behind feature flags so a rollback is a toggle rather than a deploy.

Observability

Distributed tracing end to end, structured logs, and service level objectives with error budgets that actually gate a release.

Hardening

Static analysis and dependency scanning in the pipeline, secrets held outside the codebase, least-privilege access by default, and signed, reproducible builds.

Legacy

Incremental replacement of monoliths and decades-old cores, moving traffic across a slice at a time, with contract tests pinning the old behaviour until the last consumer moves.

Loved bythe boardroom

• “

  FIS transformed our infrastructure in under 8 weeks. Their expertise with Palo Alto and Cisco meant we went from zero to SOC 2 compliant faster than we thought possible.

• “

  As an early-stage insurtech, we needed enterprise security without enterprise overhead. FIS delivered exactly that — and their GDPR framework saved us months.

• “

  The team at Future Information Services truly understand the UK regulatory landscape. They guided our digital transformation with precision and care.

Questions,answered