Citizen transactional services
Apply, report, and check services on the GOV.UK Design System and One Login, organised around citizen life events.
Industries / Commerce & IndustrialGovernment
Services built to pass a GDS assessment
Citizen services on GOV.UK patterns, case-management, accessibility, and secure cloud, shipped by senior teams against the Service Standard.
0 monthsDiscovery to GDS Live, median
0%GDS assessments passed first time
WCAG 0.0 AAOn first independent audit
What we ship
The government build, end to end
Citizen services to case-management to secure cloud, shipped by one senior pod against the Service Standard.
01 / 06Citizen transactional services
Apply, report, and check services on the GOV.UK Design System and One Login, organised around citizen life events.
Caseworker platforms
Case-management for benefits, social care, and licensing, audit-bound and accessible.
Identity integration
GOV.UK One Login and OIDC with attribute-confidence routing and identity proofing.
Data platforms & sharing
Cross-government data platforms with MoU-driven access and DPIA-evidenced processing.
Legacy modernisation
Mainframe and case-system replacement on a strangler-fig pattern with parallel-run and no service disruption.
Cyber & CAF programmes
NCSC CAF uplift, Cyber Essentials Plus baseline, SPF-aligned classification handling, and continuous threat detection.
Why our engineering passes
The disciplines behind every Live pass
Government engineering is judged against the Service Standard. We build with the evidence to defend it, from sprint one, not at assessment.
01
Service Standard as constraint
Every one of the 14 points has an engineering owner and an evidence artefact from sprint one. Assessments become readouts, not negotiations.
02
Accessibility from sprint one
WCAG 2.2 AA engineered in, not retrofitted, passing the first independent audit under the Public Sector Bodies Accessibility Regulations.
03
Secure by classification
OFFICIAL-SENSITIVE as baseline: key-managed encryption, mandatory MFA, audit-bound access, and CAF profile uplift as engineering output.
04
Modernisation without outage
Strangler-fig replacement parallel-run against legacy, risk-managed against operational continuity, never a single big-bang cutover.
Where it pays off
Where it pays off in production
Selected programmes across central departments, devolved administrations, local authorities, and arms-length bodies, anonymised, specific on the outcome.
Whitehall Central Department
GDS Live first time
Citizen service from Discovery to GDS Live in eleven months
A new transactional service through Alpha, Beta, and Live, passing every GDS Service Standard assessment on first submission with One Login integration.
- GOV.UK Design System
- One Login
- WCAG 2.2 AA
Devolved Administration
4x throughput
Case-management modernisation lifted throughput fourfold
Legacy case-management replatformed onto AWS with audit-bound decision capture, caseworker throughput up fourfold.
- AWS
- Case-management
- Audit trail
Major Executive Agency
CE Plus retained
One Login identity integration on a Cyber Essentials Plus rebuild
GOV.UK One Login integration with attribute-confidence routing, retaining Cyber Essentials Plus through the full rebuild.
- One Login
- OIDC
- Cyber Essentials Plus
Tier-1 Local Authority
WCAG 2.2 AA first pass
Adult-social-care replatform cleared accessibility on first audit
Adult-social-care case-management replatform, Public Sector Bodies Accessibility Regulations cleared on the first independent audit.
- Adult social care
- WCAG 2.2 AA
- Assisted digital
Non-Departmental Public Body
Article 9 DPIA cleared
Data platform cleared an Article 9 DPIA under HMG SPF
A Snowflake data platform built under the HMG Security Policy Framework with an Article 9 DPIA cleared before go-live.
- Snowflake
- HMG SPF
- DPIA
CNI-Supervised Arms-Length Body
14/14 principles uplifted
CAF programme uplifted the profile across all 14 principles
An NCSC Cyber Assessment Framework programme uplifting the cyber profile across all fourteen principles, evidenced as engineering output.
- NCSC CAF
- CNI
- Cyber assurance
The government stack
The government stack, by layer
We ship on the cross-government platforms and approved-supplier frameworks departments actually run, each layer integrated, vendor choice driven by your standards rather than ours.
Layer 01 Cross-government platforms
GDSThe shared service core: design system, notifications, payments, identity, and form patterns reused across government.
- GOV.UK Frontend
- GOV.UK Notify
- GOV.UK Pay
- GOV.UK One Login
- GOV.UK Forms
- GOV.UK Frontend
- Notify
- Pay
- One Login
Layer 02 Service framework
Accessible, locale-aware citizen services with WCAG 2.2 AA budgeted in CI.
- Next.js 16
- GOV.UK Frontend
- Nunjucks
- Express
- Node.js
- WCAG 2.2 AA
- GOV.UK patterns
- Progressive enhancement
- Welsh language
Layer 03 Identity & security
Cross-government identity and CAF-aligned security with SPF classification handling.
- GOV.UK One Login
- OIDC
- Cyber Essentials Plus
- NCSC CAF
- One Login
- OIDC
- CAF profile
- SPF handling
Layer 04 Cloud & hosting
Cloud-first hosting in UK regions, scoped per engagement against the Technology Code of Practice.
- AWS UK
- Azure UK South
- Crown Hosting
- Google Cloud UK
- AWS UK
- Azure UK
- Crown Hosting
- Cloud-first
Layer 05 Data & analytics
Cross-government data platforms with MoU-driven access and DPIA-evidenced processing.
- Snowflake / Databricks
- BigQuery
- dbt
- RM6263
- Snowflake
- Cross-gov sharing
- DPIA
- MoU access
Layer 06 Procurement & assurance
CCSProcurement-fluent delivery via Crown Commercial Service frameworks with assurance built in.
- G-Cloud 14
- Digital Outcomes (DOS6)
- ISO 27001
- WCAG 2.2 AA audit
- G-Cloud 14
- DOS6
- ISO 27001
- Accessibility audit
Our engagement workflow
Seven stages from first call to ongoing support
Every engagement walks the same path, sized to your problem, but with the same verification gates baked in.
Phase 01Discovery
Two-week paid sprint. Architect-led. Output: regulator map, costed roadmap, signed scope.
Phase 02Planning
Pod composition, sequenced milestones, change-control governance, and risk register.
Phase 03Design
Reference architecture, threat model, design system, and acceptance criteria locked.
Phase 04Development
Weekly demos, trunk-based, CI/CD from day one. Code reviewed against spec at every gate.
Phase 05Testing
Unit, integration, e2e, security, performance, and accessibility, automated and gated.
Phase 06Deployment
Blue-green or canary, observability live before launch, rollback rehearsed.
Phase 07Support
Managed services or hypercare hand-off. Defined SLOs, named on-call, monthly reviews.
Success stories
Programmes we have shipped
58%
Government & Public
Complaints triage and root-cause tagging for a government department
Auto-classified 58% of citizen complaints to root cause, feeding the department's reporting directly.
PythonspaCyTransformersPostgreSQL
Country · UK
WCAG AA
Government & Public
Accessible public-services portal rebuild
Rebuilt a citizen portal to WCAG 2.2 AA, cleared external audit first pass.
Next.jsTypeScriptGOV.UK Design System
Country · UK
7 weeks
Government & Public
Secure landing zone for a government department
Stood up a compliant, multi-account landing zone for a government department in 7 weeks.
AWSControl TowerTerraformSCPs
Country · UK
25k
Government & Public
Zero-trust rollout for a government agency
Rolled zero-trust access to 25,000 civil servants without a productivity dip.
OktaZscalerEntra IDTerraform
Country · UK
WCAG 2.2 AA passed
Government & Public
Usability and accessibility testing for a mobile learning platform
Real-device usability and hands-on accessibility testing with assistive technology took a public-sector learning app to a clean WCAG 2.2 AA launch with no post-release remediation sprint.
iOSAndroidVoiceOveraxe
Country · SG
99.9%
Government & Public
Load and soak testing for an enterprise cloud platform
Validated a 99.9% uptime SLA under peak load, so the cloud portal and provisioning APIs held through demand spikes without incident.
k6JMeterGrafanaPrometheus
Country · US
Auth hardened
Government & Public
Authentication and access-control testing for an identity platform
Tested login, SSO, and token flows end to end and hardened the identity layer against real abuse cases before rollout.
Burp SuiteOAuth2OIDCJWT
Country · CH
60% narrower scope
Government & Public
Verifiable-credential feasibility study for a workforce platform
Scoped a focused credentialing pilot over a full rebuild, narrowing the programme 60% for a workforce management platform.
Feasibility studyChain selectionVerifiable CredentialsROI model
Country · UK
Self-service Web3
Government & Public
On-chain intelligence platform for a financial-intelligence unit
Turned raw on-chain data into a self-service intelligence dashboard that surfaces suspicious wallet activity in seconds for a public financial-intelligence unit.
The GraphEthereumGraphQLNode.js
Country · UK
3x faster proposal cycles
Government & Public
DAO governance portal for a Web3 organisation
Wired the proposal-to-execution lifecycle straight into on-chain voting and treasury actions, tripling the speed of a Web3 organisation's proposal cycles.
OZ GovernorSnapshotSafeEthereum
Country · AE
94% fewer data errors
Government & Public
Tokenised carbon credits for an ESG reporting platform
On-chain carbon-credit issuance and retirement contracts gave auditors tamper-proof evidence and cut reporting data errors by 94% for an ESG reporting platform.
SolidityERC-1155HardhatPolygon
Country · DE
7 min
Manufacturing
Self-healing incident remediation for a manufacturer's OT platform
Cut median incident remediation from 41 to 7 minutes across a manufacturer's OT platform, with a human approval gate on every action.
GoKubernetesLangGraphPrometheusOT connectors
Country · DE
18%
Foodtech
Churn prediction for a foodtech subscription platform
Cut voluntary churn 18% in two quarters with next-best-action scoring for a meal-subscription platform.
PythonXGBoostSnowflakedbtMLflow
Country · UK
22%
Retail
Demand forecasting for a grocery retailer
Cut waste 22% across 900 stores with SKU-level probabilistic forecasts.
PythonPyTorchDatabricksDelta Lake
Country · FR
94%
Logistics
Shipping-document extraction for a logistics operator
Achieved 94% straight-through extraction on bills of lading and customs paperwork for a logistics operator.
PythonLayoutLMTesseractAzure
Country · UK
62%
Foodtech
Supplier portal for a foodtech marketplace
Self-service supplier portal lifted supplier adoption to 62% in one quarter for a foodtech marketplace.
Next.jsTypeScriptGraphQLPostgreSQL
Country · UK
120ms
Logistics
Real-time operations dashboard for a logistics operator
Sub-120ms streaming operations dashboard across 40 control desks for a logistics operator.
ReactWebSocketsRustRedis
Country · UK
225 files
Manufacturing
Global export platform rebuild for a bilateral trade and investment board
Re-themed and re-scoped an 80-route SaaS template into a 15-page global trade platform, with zero legacy brand colour left across 225 files.
Next.jsTypeScriptTailwind CSSFramer MotionD3.jsSplineGoogle Sheets API
Country · UK
4.8★
Retail
Loyalty and shopping app for a retailer
Launched a retail loyalty app to a 4.8-star rating and 200k users in 90 days.
SwiftKotlinReact NativeAWS
Country · UK
31%
Manufacturing
Field-service app for a manufacturer's engineers
Offline-first engineer app cut job-completion admin 31% for a manufacturer's field team.
FlutterDartSQLiteGCP
Country · UK
0 outages
Retail
Cloud migration for an omnichannel retailer
Re-platformed e-commerce to the cloud, holding availability through a record peak-season trading day.
AWSTerraformEKSCloudFront
Country · UK
34%
Manufacturing
Factory-systems migration for a manufacturer
Lifted MES and quality systems to the cloud across nine plants, cutting infrastructure cost 34%.
AzureTerraformAKSAzure Arc
Country · DE
1.2M
Automotive
Connected-vehicle platform for a carmaker
Built a cloud platform ingesting telemetry from 1.2M connected vehicles at scale.
GCPKubernetesPub/SubBigQuery
Country · DE
55%
Logistics
Kubernetes platform for a logistics operator
Consolidated 14 clusters to one governed platform, cutting ops toil 55% for a logistics operator.
KubernetesIstioFluxTerraform
Country · NL
72%
Foodtech
Observability rebuild for a foodtech platform
Cut mean-time-to-detect 72% for a food-delivery platform with unified tracing and SLOs.
OpenTelemetryGrafanaPrometheusTempo
Country · UK
60%
Retail
Lakehouse build for a grocery retailer
Unified 40 sources into a governed lakehouse, cutting report build time 60% for a grocery retailer.
DatabricksDelta LakeSparkTerraform
Country · UK
sub-second
Logistics
Real-time data pipeline for a logistics operator
Delivered sub-second track-and-trace event data to 30 teams for a logistics operator.
KafkaFlinkIcebergKubernetes
Country · DE
45%
Automotive
Cloud warehouse migration for a carmaker
Migrated a legacy warehouse to the cloud, cutting query cost 45% for a carmaker.
SnowflakedbtFivetranTerraform
Country · DE
3x
Foodtech
Self-service analytics for a foodtech platform
Self-service models tripled analyst throughput at a food-delivery platform.
LookerdbtBigQuery
Country · FR
74
Retail
Cloud penetration test for a retailer
Surfaced 74 exploitable misconfigurations across a retailer's multi-account cloud estate.
ProwlerScoutSuitePacuAWS
Country · UK
90%
Manufacturing
Privileged access overhaul for a manufacturer
Cut standing privileged access 90% across a manufacturer's IT and OT estate.
CyberArkEntra PIMTerraform
Country · DE
R155
Automotive
Threat modelling a connected vehicle
Mapped and mitigated attack paths for a UNECE R155-regulated connected vehicle.
STRIDEISO 21434UNECE R155Threat modelling
Country · DE
0 criticals
Logistics
Threat modelling a logistics partner API
Hardened a logistics partner API against abuse before third-party onboarding.
STRIDEOAuth2Threat modelling
Country · NL
0 contract breaks
Manufacturing
API testing for an IoT device platform
Validated device, telemetry, and notification APIs under live conditions, shipping a release with zero contract breaks across connected consumers for an IoT platform.
PostmanRESTWebSocketNewman
Country · DE
100% endpoints covered
Retail
API testing for a video-streaming platform
Achieved full endpoint coverage across upload, playback, and monetisation APIs, with auth, rate limits, and error paths verified end to end for a streaming platform.
PostmanGraphQLRESTNewman
Country · US
-62% integration bugs
Logistics
API testing for a travel-booking aggregator
Contract and integration testing across hotel, flight, and car-rental APIs cut integration bugs 62% by catching schema and pricing mismatches before release.
PostmanRESTPactNewman
Country · AE
90%
Retail
CI regression suite for an e-commerce marketing platform
Wired end-to-end suites into CI for a US e-commerce marketing platform, cutting regression time 90% and shipping every merge regression-clean.
PlaywrightTypeScriptGitHub ActionsNode.js
Country · US
40+
Logistics
Cross-browser automation for a store analytics dashboard
Delivered cross-browser E2E and API automation for a UK store analytics dashboard, catching orders, inventory, and reporting regressions before every release.
CypressPlaywrightGitHub ActionsPostman
Country · UK
Days to minutes
Foodtech
End-to-end automation for a food-delivery platform
Automated ordering, cart, and checkout on real devices for a UAE food-delivery platform, cutting manual regression from days to minutes per release.
PlaywrightTypeScriptBrowserStackGitLab CI
Country · AE
Zero-incident launch
Retail
Manual QA for an online store's product dashboard and checkout
Functional and exploratory testing across catalogue, search, filters, and checkout caught layout and data defects before go-live, so a US retailer launched its new store with no customer-facing incidents.
WebTestRailJiraBrowserStack
Country · US
100% critical coverage
Logistics
Functional QA on the release train for a task-management SaaS
Hands-on regression and exploratory testing of boards, dashboards, and role-based workflows kept every critical path stable through fortnightly releases, holding critical-path coverage at 100% for a UK logistics-operations SaaS.
WebTestRailXrayJira
Country · UK
3x
Retail
Checkout stress and spike testing for a merchant platform
Isolated the true checkout bottleneck and produced a validated capacity model showing three times the throughput headroom the platform believed it had.
GatlingJMeterGrafanaNew Relic
Country · US
1M+ msgs/hour
Manufacturing
Throughput testing for an IoT data platform
Proved stable ingestion throughput and latency at over a million device messages an hour, so the platform could onboard new fleets with confidence.
k6JMeterInfluxDBGrafana
Country · UK
0 critical findings
Retail
Application and API security testing for a SaaS platform
Delivered OWASP-aligned application and API testing that closed the exploitable paths and left the platform with zero critical findings at release.
Burp SuiteOWASP ZAPNucleiSAST
Country · US
Zero stuck funds
Retail
Trustless escrow contracts for a marketplace platform
Fuzz- and invariant-tested escrow that holds buyer funds until both parties confirm delivery meant no funds were ever left stuck for a marketplace platform.
SolidityFoundryOpenZeppelinUSDC
Country · NG
Who we are
About usBritonOne Technology is a full-cycle engineering company that builds and operates production software for regulated estates. Since 2017, we have shipped programmes that clear audit on the first pass across banking, insurance, wealth, healthcare, and biotech. Our teams pair deep domain knowledge with disciplined engineering, treating compliance, security, and resilience as first-class deliverables. From architecture through to live operations, we stay accountable for the systems we build, measuring success by uptime, audit outcomes, and defensible business results.
60+Senior engineers across UK and EU
Why choose us
Engineer experience, average9+ yrs
Specialist replacement window48h
Code and IP ownership, day one100%
Surprise invoicesZero
Why teams choose BritonOne Technology
Four reasons enterprise buyers come back
We don't compete on lowest day-rate. We compete on shipped outcomes inside environments that have to clear audit.
Senior-only delivery
Every engineer on every engagement is at least senior, typically eight to fifteen years deep in their craft. No bench rotations, no junior pyramid hidden behind a glossy proposal, no bait-and-switch after contract signature. The architect who scoped your engagement is the same person committing code by week three.
Audit-ready by default
FCA, PRA, EBA, BaFin, FINMA, HIPAA, SOC 2 Type II: every framework we work under is treated as a design constraint from day one, not a final-stage gate. Evidence trails, model-risk packs, change-control artefacts, and pen-test reports ship alongside the code, ready for second-line review without a remediation sprint.
Anti-drift delivery discipline
Small pods of three to seven engineers, each with a named delivery lead who owns scope, schedule, and outcomes from kickoff to hand-off, never a faceless team you have to chase for an answer. Weekly demos run against the signed scope, frequent verification gates catch regressions early, and quarterly outcome reviews measure real progress against the original business case rather than a moving target. Together those rituals catch scope drift before it has any chance to compound, so programmes that should take six months don't quietly stretch into eighteen, budgets stay anchored to what was agreed, and every milestone ships with a written, testable definition of done that both sides sign off before we move on.
Long-tail support beyond hand-off
We don't disappear the moment the engagement closes. Managed services, hypercare windows, named on-call rotations, or quarterly health checks: pick the depth that matches your operational risk profile. About seventy percent of clients return for a second programme, usually because the team that shipped the first one is still on the other end of the page.
Government client reviews
What public-sector teams say
Anonymous under MNDA. Each quote is from a senior public-sector buyer who owned the engagement end to end.
A Service Assessment We Could Defend
“Every one of the 14 Service Standard points had an evidence artefact before we walked into the assessment. We passed Alpha, Beta, and Live on first submission. I have never had a supplier make an assessment feel like a readout.”
Deputy Director, DigitalCentral government department, UK
Government procurement questions
What teams ask before the first SOW
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- 3
- 4
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Before you sign
Direct answers to what procurement, security, and delivery leads weigh before signing: compliance, integration, and the accountability we put in writing.
How can we buy your team: DOS6 or G-Cloud?
Both, and the route depends on the work. For outcome-based delivery of a service through Discovery, Alpha, Beta, and Live, we contract via Digital Outcomes and Specialists (DOS6). For defined cloud software and support, or a short specialist engagement, we contract via G-Cloud 14. We can also deliver a two-week Discovery under a call-off while a longer competition runs, so momentum is not lost.