SONNET CODE
Our Work

Selected case studies.

Platforms, apps, and systems we've delivered for clients across finance, healthcare, logistics, retail, and the public sector. Clients are anonymized by request, but every project below was shipped and runs in production today.

RAG assistant that answers support reps faster than Google
Featured B2B SaaS · 2025

Company-wide knowledge assistant for support ops

Retrieval over Notion, Zendesk, and Salesforce behind a streaming chat UI, with citation-first answers, confidence scoring, and a reviewer loop for low-confidence cases.

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Evaluation harness for a frontier-model chat product
AI / ML 6 months

Human-in-the-loop evaluation harness

Built the platform the team uses to grade model outputs before and after training runs: rubric authoring, blind pairwise comparisons, rater calibration, and exportable scorecards that feed directly into the RLHF preference dataset. Replaced a patchwork of spreadsheets and ad-hoc scripts.

Frontier-model lab · post-training team
Security hardening for a B2B payments platform
Fintech 4 months

Security hardening for a B2B payments platform

Threat model, security gates in CI, least-privilege cloud access and tamper-evident audit logs for a payments API facing enterprise security reviews.

B2B payments fintech
Claims automation with OCR & ML
Insurance 18 months

Claims automation platform

Automated the end-to-end claims workflow from submission to payout, integrating document OCR, ML-based fraud scoring, and adjuster workbenches. Reduced average claim processing time from 14 days to 36 hours.

Multinational insurer · 8 countries
Route planner & driver ops app
Logistics & Supply Chain 16 months

Fleet management & route optimization

AI-assisted route planning, live tracking dashboard and a driver mobile app integrated with legacy WMS.

National logistics operator · 2,300+ vehicles
Unified inventory across 180+ stores
Retail & E-commerce 12 months

Omnichannel commerce platform

Real-time sync between POS, warehouse and e-commerce, plus a staff app for receiving and transfers.

Retail chain · 180+ stores
Secure filings intake pipeline
Government 22 months

Citizen services digital platform

Data-ingestion and validation system for annual tax filings with full audit trail and RBAC.

Municipal government · 3.8M residents

Want to be the next one? Fifteen minutes on a call is usually enough to tell.