HEXCORE.
N° 004Selected work · 7 entries

Systems
we've
shipped.

A curated selection from active and recent engagements. Client names are anonymised where required by NDA — Onsight is featured publicly with their permission. Metrics are measured; references are available on request under mutual NDA.

Sectors covered
Workforce Intelligence · SaaSFintechHealthcareLogisticsAI / SaaSPublic sectorTelecom
Index
  1. CS-01OnsightWorkforce Intelligence · SaaS
  2. CS-02Pan-African digital bankFintech
  3. CS-03Specialist hospital networkHealthcare
  4. CS-04Cross-border freight operatorLogistics
  5. CS-05Series-B knowledge platformAI / SaaS
  6. CS-06National identity programmePublic sector
  7. CS-07Tier-1 mobile operatorTelecom
01Case studies
CS-01
★ Featured
Workforce Intelligence · SaaS

Onsight

Duration14 months · ongoing
Team1 product architect · 4 engineers · 1 mobile lead · 1 AI engineer · 1 designer
Onsight admin dashboard — live workforce map and command center
Onsight admin dashboard — live workforce map and command center
Challenge

Operators of on-site teams were running attendance and compliance on manual timesheets, screenshots, and manager memory — producing payroll disputes, late exception discovery, and no live picture of who was actually on location. Onsight needed a workforce intelligence platform that could turn every attendance event into verifiable, policy-bound, audit-ready operational truth — combining geofencing, trusted-device controls, offline-tolerant mobile capture, and an AI command layer that could explain exceptions in plain language.

Outcome

A four-surface platform — admin command center, native mobile app, exception action-queue, and the OpsIQ AI intelligence layer — built end-to-end. Geofence-verified check-ins and check-outs against approved worksites, biometric and trusted-device controls on eligible plans, live workforce visibility bound by working-hour policy, and offline-resilient mobile sync. OpsIQ turns attendance events, trust signals, and audit logs into AI-explained briefs managers can act on before payroll closes.

What we built
  • Geofence-verified attendance with trust-scored check-ins
  • Live workforce visibility during working hours
  • Exception intelligence — missed checkouts, breaches, anomalies
  • Offline-resilient mobile capture with queued sync
  • OpsIQ AI explanations for exceptions and audit activity
  • Biometric & device-integrity controls (Enterprise tier)
  • Payroll-ready attendance exports
Stack
TypeScriptNext.jsReact NativeNode.jsPostgreSQLPostGISRedisAWSOpenAIAnthropic Claude
Attendance data is only useful when it proves what happened. Every event has context: person, place, time, policy, device signal, exception state, and AI-assisted explanation.
Onsight — product positioning· onsight.work
Product surfaces
Onsight mobile app — home and settings screens
Onsight admin settings — tracking policy controls
Impact
04
Surfaces shipped
Free → Enterprise
Plan tiers
OpsIQ
AI command layer
Queued + protected
Offline sync
01 / 07continued ↓
CS-02
Fintech

Pan-African digital bank

Duration11 months
Team1 architect · 6 engineers · 2 SREs
Challenge

Re-architect a monolithic ledger to support 10x transaction volume across three markets.

Outcome

Event-sourced core ledger. p99 settlement latency reduced from 1.8s to 140ms.

Stack
GoKafkaPostgreSQLKubernetesTemporal
Hexcore didn't just rewrite our ledger — they upgraded how we think about engineering. The team operates the system today better than we ever did.
CTO, Pan-African Digital Bank
Impact
92%
Latency reduction
3
Markets unlocked
4.1M
Daily TX peak
$1.4M
Annualised infra savings
02 / 07continued ↓
CS-03
Healthcare

Specialist hospital network

Duration9 months
Team1 health-tech lead · 4 engineers · 1 clinical SME
Challenge

Unify patient records across 14 facilities running 4 different legacy systems.

Outcome

FHIR-based interoperability layer with consent-aware access control.

Stack
TypeScriptFHIR R4PostgreSQLAWS
Clinical staff didn't change their workflow. The data just started showing up. That's the highest praise I can give a tech project.
CMIO, Hospital Network
Impact
14
Facilities unified
1.2M
Records migrated
−74%
Avg. lookup time
+38pts
Clinical satisfaction
03 / 07continued ↓
CS-04
Logistics

Cross-border freight operator

Duration7 months
Team1 distributed-systems architect · 3 engineers · 1 IoT specialist
Challenge

Real-time fleet visibility across borders with intermittent connectivity.

Outcome

Edge-first telemetry pipeline with reconciliation on reconnect.

Stack
Rust (edge)GoMQTTTimescaleDBGrafana
We've replaced three vendors with one platform and our operations team finally trusts the numbers on the dashboard.
Head of Operations, Freight Operator
Impact
2,400+
Vehicles online
<0.1%
Loss rate
+23%
On-time delivery
−11%
Fuel cost reduction
04 / 07continued ↓
CS-05
AI / SaaS

Series-B knowledge platform

Duration11 weeks
Team1 AI architect · 2 ML engineers · 1 backend engineer
Challenge

Move from prototype RAG to production-grade with strict eval gates.

Outcome

Multi-tenant RAG with offline evals, drift detection, and human-in-the-loop review.

Stack
PythonLangGraphpgvectorRagasModal
Other vendors gave us demos. Hexcore gave us a system we could put in front of regulated-industry customers and not lose sleep.
Co-founder & CEO, Knowledge Platform
Impact
92%
Eval coverage
−61%
Cost per query
11 wks
Time to ship
$4.2M ARR
Enterprise deals unlocked
05 / 07continued ↓
CS-06
Public sector

National identity programme

Duration14 months
Team2 architects · 7 engineers · 2 SREs · GRC lead
Challenge

Stand up a citizen-facing identity service capable of peak-day registration spikes.

Outcome

Active-active multi-region deployment with offline-tolerant edge enrollment app.

Stack
JavaKotlinPostgreSQLKafkaKubernetes (sovereign cloud)
Peak-day handled 3.2M registrations with no degradation. The audit trail satisfied every reviewer. We sleep at night.
Programme Director
Impact
3.2M
Peak registrations / week
100%
Uptime since launch
36
States deployed
0
Audit findings (year 1)
06 / 07continued ↓
CS-07
Telecom

Tier-1 mobile operator

Duration18 months
Team1 architect · 5 engineers · 1 platform lead
Challenge

Replace a legacy charging engine that bottlenecked product launches.

Outcome

Event-driven real-time charging system, deployed via strangler-fig over 18 months.

Stack
JavaKafkaCassandraKubernetes
We went from 6-month launch cycles for new tariff plans to 6 days. The business team finally got their roadmap back.
VP Engineering, Mobile Operator
Impact
<50ms p99
Decisioning latency
80M+
Events / day
−96%
Launch cycle
$3.1M / yr
Revenue assurance gains

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