We build the tools
that take work off your desk.
Custom AI tools, web apps and automation pipelines, engineered around your workflows and secured before they ship. We start with a workflow audit, then build only what gives your team hours back. No agencies, no outsourcing, our engineers ship it end to end. Industry agnostic, with deep experience in UK law, accounting and financial services.
Code & Security Review for UK Businesses
Most codebases carry vulnerabilities that go unnoticed until they are exploited. We run a thorough security audit. OWASP Top 10 coverage, CVE dependency scanning, authentication flow analysis and injection vector testing. You get a prioritised fix list you can action immediately, not a generic PDF.
Ideal before launch, before acquiring a business (technical due diligence), or before a compliance gate such as Cyber Essentials or GDPR certification. Any language, any framework. No switching required.
- OWASP Top 10 scan across all endpoints
- CVE and dependency vulnerability audit
- Authentication and authorisation flow review
- Secrets exposure check (API keys, credentials in code)
- SQL injection, XSS and injection vector testing
- Input validation and sanitisation audit
- Logic error and privilege escalation analysis
- Code quality scoring and technical debt report
- Prioritised fix list with severity ratings
- Executive summary + 30-day follow-up call
Bespoke Web Application Development
We build custom web applications for UK businesses that need software tailored to their exact workflows, not adapted from a template. React and Next.js frontends, Node.js or Python backends, secure REST and GraphQL APIs, and cloud deployment on your infrastructure of choice.
Full source code is yours on day one. Everything is documented and handed over, no vendor lock-in, no ongoing dependency on us unless you want it. We build it, you own it.
- Tech stack selection and architecture document
- UI/UX wireframes and design system
- Responsive React/Next.js frontend
- Secure Node.js or Python backend and REST/GraphQL API
- PostgreSQL or SQLite database with migrations
- Authentication system (OAuth 2.0 / JWT)
- Automated test suite (unit + integration)
- Cloud deployment (Vercel, AWS, Infomaniak) with CI/CD pipeline
- Technical documentation and handover pack
- 3-month support window post-launch
Business Automation & API Integrations
Manual data entry between systems is expensive, error-prone, and a waste of your team's time. We design and build custom automation pipelines and API integrations that keep your business systems in sync, automatically, reliably, without human intervention.
We work directly against the APIs your business already runs on. No platform switching, no no-code tools that break when you need them most, just clean, maintainable code that does exactly what you scoped.
- Current workflow mapping and automation scoping
- Integration architecture design
- Custom API connectors and webhook infrastructure
- Error handling, retry logic and failure alerts
- Scheduled jobs and event-driven triggers
- Data transformation and cross-system sync
- Monitoring hooks and observability setup
- Test harness and staging environment
- Deployment runbook and operator training
- Handover documentation
Custom AI Tools & LLM Integrations
Off-the-shelf AI assistants aren't built for your documents, your terminology, or your regulatory constraints. We build purpose-specific AI tooling, custom LLM integrations, retrieval-augmented generation (RAG) pipelines, document classification, and structured data extraction, that produces reliable, auditable output from your unstructured data.
We select the right model for your use case: Claude or Gemini for cloud deployments, local Qwen 3 for on-premises where data cannot leave your infrastructure. For law firms, financial services, and healthcare, we scope full on-premises deployment via Nerdster Vault.
- Model selection guide (cloud vs local vs hybrid)
- Prompt architecture and system prompt engineering
- Vector store setup (pgvector or ChromaDB) for RAG
- Document ingestion and chunking pipeline
- Extraction schema design and validation
- Accuracy benchmarking against your real data
- Cost modelling across provider options
- On-premises deployment scoped (Vault option)
- Monitoring dashboard and usage tracking
- Handover documentation and team training
Run AI tools locally, zero cloud costs, zero data exposure
AI tools built by Nerdster can be deployed on-premises via Nerdster Vault. Your models, your hardware, your data.
Mac Mini M4 Pro with local Qwen 3 running at ~£0 per message. Cloud models available for tool-use and complex tasks, with a monthly credit included in every plan.
- All inference runs locally, no cloud costs for 85–90% of queries
- Your data never leaves your hardware
- Custom AI tools we build can be deployed directly
- Managed by Nerdster, MDM, patching, FileVault 2