Client overview
- Industry focus
- Insurance
- Portfolio segment
- Finance
- Organization profile
- Composite insurer (life + specialty lines), ~12k employees globally
The enterprise ran a twenty-year-old policy administration suite patched annually with vendor upgrades that never aligned to digital distribution timelines. Embedded partners demanded RESTful rating with deterministic SLAs; internal IT operated four middleware clusters duplicating transformation logic. CEO-sponsored transformation sought a modular digital layer that could absorb microservices incrementally without freezing regional launches already promised to regulators.
Problem
Legacy PAS extensions could not expose stable APIs for embedded channels; underwriting checks were inconsistent across regions.
Distribution teams signed embedded partnerships assuming real-time eligibility and bind confirmation. Legacy middleware returned SOAP payloads that required bespoke transformation per partner — each taking 8–12 weeks to certify. Fraud and sanctions screening invoked different vendor sequences by region, producing false positives that pushed straight-through processing below 40%.
Finance could not tie policy events to reinsurance treaties in near real time, forcing quarter-end adjustments that annoyed external auditors. Data science teams lacked a governed feature store for renewal propensity models, so price experiments relied on CSV handoffs.
Operational risk increased as the vendor's upgrade train introduced unplanned outages during renewal season. Disaster recovery drills showed RPO gaps for certain endorsements stored in asynchronous queues.
Solution
We introduced an API façade with event-driven underwriting orchestration, standardized screening pipelines, and a governed feature pipeline for pricing experiments.
A strangler-fig pattern wrapped the PAS with domain services for rating, eligibility, sanctions, and document generation. Contracts followed AsyncAPI for event catalogs; GraphQL federation sat behind partner connectivity only where mobile apps needed aggregated reads.
Underwriting orchestration executes deterministic rule packs versioned with GitOps; champion/challenger experiments route traffic using hashed policy IDs for fairness. Model artifacts land in S3 with lineage metadata ingested into a governance catalog.
Observability spans synchronous REST paths and Kafka-backed streams; golden signals dashboards tie partner SLAs to internal queue depth. Chaos tests validate broker cutover readiness each sprint.
Implementation
- 1
Architecture runway & vendor co-creation
Joint design sessions mapped PAS event hooks, defined backward-compatible payload shapes, and negotiated vendor roadmap items. Security architecture threat-modeled partner OAuth and mTLS termination at the edge.
- 2
Partner pilot & dual-write
A North American embedded partner onboarded through the façade with synthetic traffic mirroring legacy responses. Parallel runs compared premium outcomes; discrepancies triggered rule pack diffs before widening traffic.
- 3
Scale & FinOps discipline
Autoscaling policies aligned to partner seasonality; reserved capacity for Kafka; cost allocation tags per line of business. Runbooks automated rollback of feature bundles without database restores.
Tools & platforms
- Backstage developer portal
- Kafka + Schema Registry
- Prometheus/Grafana/Loki stack
- Argo CD for GitOps
Engineering challenges addressed
- Keeping idempotency keys consistent across PAS restatement events.
- Screening latency targets when third-party AML services degraded regionally.
- Educating regional compliance on event-sourced audit evidence.
Program artifacts & environments
Tech stack
- Node.js
- TypeScript
- Kafka
- Kubernetes (EKS)
- PostgreSQL
- Redis
- Next.js
- AWS
- OpenTelemetry
Results
- 37% faster median quote-to-bind for embedded journeys
- Straight-through processing improved from 41% to 63% in pilot lines
- 29% reduction in annual run cost for integration estate
Quantified impact
37% faster quote-to-bind (p50)
A/B measured on partner traffic with holdout.
$4.8M avoided capitalized dev on duplicate middleware
Three-year TCO model vs. status quo.
64% fewer partner certification cycles per launch
Owing to reusable transformation templates.
Key takeaways
- Enterprise insurance distribution needs an explicit API product owner — not a project PM per partner.
- Dual-write validation windows are cheaper than big-bang data replatforming when policy money movement must stay authoritative in the PAS.
- Golden path observability for partners prevents silent SLA erosion as autoscaling reacts to volatile marketing traffic.