Penetration Test That Found Real Risk
“Their pen-test team surfaced two findings our previous vendor had marked clean. The retest was tight, the report was board-ready.”
Head of SecurityInsurance-tech scale-up, EU
60+ disciplines · one accountable team
Services
Engineering every discipline a modern enterprise needs
Sixty senior engineers across AI, software, cloud, data, and security, composed into one accountable team, shipping under audit, ready in days not months.
Delivery inside regulated estates across the UK and EU
60+
Senior disciplines
100%
Senior-only delivery
How we build
AI-Powered Custom Software Development Company
Two ways we engineer software: pick the discipline that fits your problem shape. Every engagement composes both where it pays for itself.
Traditional
Traditional software development
Structured, rule-based, deterministic. Built on proven human methodologies and explicit code that an auditor can read.
- Architect-led discovery & design
- Explicit business logic, owned code
- Predictable cost, predictable shape
- Production-grade from day one
AI-driven
AI-driven software development
Experimental, adaptive, probabilistic. Data-driven models, continuous learning, and automated optimisation, engineered to clear audit.
- RAG, fine-tuning & agentic systems
- Eval harnesses, model risk packs
- Continuous learning loops
- Cleared at second-line risk review
Browse by discipline
Seven categories, sixty services, one delivery model
Pick the discipline that matches your problem. Each category groups every sub-service we offer, composed under one accountable line.
AI & Machine Learning
Generative AI, agentic systems, machine learning, NLP, computer vision, and consulting, production-grade and audit-ready.
Software Development
Custom software, web, and mobile builds, designed, engineered, and shipped end-to-end by senior product teams.
Cloud & DevOps
Cloud migration, platform engineering, DevOps, and managed operations on AWS, Azure, and GCP.
Data & Analytics
Data engineering, analytics, and business intelligence, pipelines that survive auditor scrutiny and BI that drives decisions.
Cybersecurity
Penetration testing, IAM and zero-trust, compliance, and threat modelling, security-by-design from day one.
Quality Assurance & Testing
Manual, automated, performance, API, and security testing, quality gates that catch the right defects at the right stage.
Blockchain
Blockchain development, smart contracts, DeFi, and advisory, engineered for regulated tokenisation and settlement.
Flagship offerings
Six service lines clients ask for by name
These are the services we ship most often, each backed by senior specialists, reference architectures, and case studies you can read.
B1
Generative AI
Custom Software
Data Analytics
DevOps Engineering
Cloud Migration
Penetration Testing
Tools of the trade
Battle-tested across every layer of the stack
We pick the boring, proven option by default, and reach for novelty only where it pays for itself. These are the tools we run in production.
OpenAI
Anthropic
PyTorch
TensorFlow
LangChain
Hugging Face
Pinecone
scikit-learnThe full catalogue
Every sub-service, organised by category
Switch between categories below to see every discipline we run. Click any service to open the detail page.
Production AI for regulated estates, from strategy to safety controls.
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
3.1x
AI & Machine Learning
Underwriting copilot for a speciality insurer
Drafted first-pass quotes from submission packs 3.1x faster, every clause cited back to the wording it came from.
PythonAzure OpenAILangChainPostgrespgvector
Country · UK
89%
AI & Machine Learning
Autonomous reconciliation for a payments processor
Resolved 89% of reconciliation breaks without a human, every action logged for audit.
PythonTemporalLangGraphPostgresAWS
Country · DE
9 months
Software Development
Core-banking platform build for a challenger bank
Ledger, accounts, and payment rails delivered to an FCA launch milestone in 9 months.
GoPostgreSQLKafkaKubernetesAWS
Country · UK
0 outages
Cloud & DevOps
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
15x
Cloud & DevOps
CI/CD overhaul for a fintech
Lifted release frequency 15x with automated gates and one-click rollback.
GitHub ActionsArgo RolloutsKubernetesTerraform
Country · UK
60%
Data & Analytics
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
3 critical
Cybersecurity
Red-team engagement against a fintech app
Found and helped close three account-takeover paths before a fintech's launch.
Burp SuiteFridaMobSFOWASP MASVS
Country · UK
Zero-incident launch
Quality Assurance & Testing
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
10k+ assertions
Quality Assurance & Testing
API testing for a digital banking app
Delivered 10,000+ automated assertions across balance, transfer, and payment APIs, catching every schema and auth regression before release for a digital bank.
PostmanRESTNewmanJMeter
Country · UK
10× lower fees
Blockchain
Tokenised issuance launchpad for a digital-asset bank
Shipped a bonding-curve launchpad with automated AMM migration and wallet-connected minting that cut issuance fees roughly tenfold for a digital-asset bank.
SoliditySolanaFoundryAMM
Country · AE
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.
Client Satisfaction Reviews
Words from the teams we have shipped with.
Anonymous under MNDA. Each quote is from a senior buyer who owned the engagement end to end across the services catalogue.
One Team Replacing Two Vendors
“BritonOne Technology replaced two of our incumbent vendors with one team. Faster sprints, fewer status meetings, more code shipped per week.”
VP EngineeringTier-1 European retail bank
Common pre-engagement questions
Things buyers ask before picking the first service
