Replit Expert UK: AI Training & Bespoke Software for Growing Businesses

Official Replit Ambassador & UK Replit Builder. Production-ready applications built on Replit. Executive AI training programmes. Hertfordshire, London and Essex.

25+ years of business experience. 200+ applications built. Systems running 9+ months with zero downtime.

From inventory management to customer portals — we build bespoke software that you own outright. Plus structured AI training for leadership teams with ongoing support available when you need it.

What We Do

  • Bespoke software development on Replit — apps you own outright
  • Executive and team AI training: ChatGPT, Claude, Gemini, NotebookLM
  • Claude Code CLI development and Claude Cowork business configuration
  • Custom GPT and AI agent creation for business workflows
  • Ongoing consultancy and support for AI-enabled teams

Service Areas

We serve businesses across Hertford, London, St Albans, Ware, Welwyn Garden City, Stevenage, Harlow and Essex.

Replit Ambassador & Level 5 Master Builder

Andrew Blumson is an Official Replit Ambassador and Level 5 Master Builder — the highest Replit certification, placing him in the top 0.5% of developers globally. Ranked #1 in Google AI Overview for "Replit Expert UK" and "Replit Training UK".

AI Training Packages

Structured AI training programmes for leadership teams, executives and professionals across Hertfordshire and London. Covering ChatGPT foundations, prompt engineering, AI governance, Custom GPTs and enterprise tool adoption.

In-person training: £1,800 for teams up to 8 people, delivered at your office. Online training: £1,200 for teams up to 12 people via Microsoft Teams. Both include 6 hours of hands-on Replit exercises and participants leave with a working prototype. Ongoing support available: 6-hour Support Package at £1,800 or ad-hoc at £500/hour.

Claude Code CLI: AI-Engineered Software

Claude Code is Anthropic's command-line AI development tool used by professional engineers to build, debug, and refactor production software directly from the terminal. It is not a chatbot. It is a hands-on engineering tool that works inside the codebase.

Replit remains the platform of choice for most client builds: fast to deploy, everything in one place, no infrastructure overhead. Claude Code CLI adds a second dimension: used directly within Replit projects for deep engineering work, and independently to build full-stack applications outside of it. Both are used seriously, every day. Clients get production-grade software built with the most capable AI development tools available, applied in the combination that best serves the project.

Claude Code Capabilities

  • CLI-First Workflow: Claude Code runs directly in the terminal, not in a browser, not in a chat window. It reads, writes, and refactors code across entire projects in real time. One command can touch dozens of files simultaneously.
  • Deep Code Reasoning: Powered by Anthropic's most advanced models, Claude Code understands complex codebases, traces bugs across files, and architects solutions that hold up in production. It doesn't suggest code snippets. It writes working systems.
  • Faster Delivery: What used to take days of debugging or refactoring now takes hours. Claude Code accelerates every phase, from initial build to ongoing maintenance. A complete arcade game engine was built and deployed in two sessions.
  • Expert Oversight: Every change is reviewed and validated. Claude Code is a tool, not a replacement. The expertise that guides it is what separates professional output from AI-generated code. Two decades of commercial and technical experience directs every decision.

Replit + Claude Code, and Claude Code Alone

Replit is the primary platform, handling hosting, databases, and deployment with a speed and simplicity that no traditional stack matches. Claude Code operates at the engineering layer: applied within Replit projects for complex debugging and refactoring, and used independently to build full-stack applications outside of Replit when the brief requires it. The combination makes for faster delivery, higher code quality, and zero compromise on either.

Claude Cowork: AI for Business Operations

Claude Cowork is Anthropic's desktop AI agent, built for the non-coding work that runs a business. It operates directly on files in a local folder, handling document creation, data processing, and client deliverables autonomously. No copy-pasting from a chat window. No prompting back and forth. It just works through the task.

We have used Cowork since its research preview in January 2026 and use it daily across client work. The real value is not in running it — it is in configuring it properly. We build custom Skills tailored to your output standards and branding, and deploy team Plugins that understand your workflows and compliance requirements. That is what separates a business-ready AI setup from someone who opened an app.

What We Deliver with Claude Cowork

  • Polished proposals and reports produced from rough notes, formatted and on-brand
  • Clean structured data extracted from spreadsheets, images, and multi-source files
  • Branded client deliverables built to your quality standards via custom Skills
  • Team Plugins encoding your processes, compliance rules, and specialist workflows

Claude Cowork Deliverables

  • Document Production: Rough notes and briefs turned into polished Word documents, proposals, and reports, formatted, branded, and ready to send.
  • Data Processing: Structured data extracted from spreadsheets, images, and raw files into clean, organised outputs your team can actually use.
  • Custom Skills: Markdown-based Skills built to your output standards. Cowork follows your quality rules automatically, every time, with no manual checking.
  • Team Plugins: Role-based Plugins configured for your team, bundling Skills, connectors, and workflows that encode your processes and compliance requirements.

Client Work & Technical Demonstrations

Production websites, business applications, and concept demonstrations. All engineered on the Replit platform with AI-assisted development.

  • Adevious CRM — Team Collab: AI-powered CRM combining intelligent contact management, business insights, and seamless team collaboration. Built for modern sales teams who demand more.
  • Adevious AI — Team Chat: Real-time team communication platform with channels and DMs. Combines instant messaging with built-in task management and file sharing for seamless collaboration.
  • Adevious Inventory Management: Enterprise-grade stock management with real-time visibility, AI-powered analysis, and comprehensive audit trails. Built for ISO 27001 and Cyber Essentials compliance.
  • Book of Builders: Community platform where Replit builders showcase their projects, help fellow developers, earn XP and level up. Features gamification elements and 20 limited edition Founders Avatars for early adopters.
  • Sublime AV & Security: Professional website for an established Hertfordshire security and audio-visual company. Showcases 25 years of expertise in designing and installing premium home cinema, CCTV, and smart home systems for luxury residences.
  • The Pines Studio: Multi-location Pilates studio with integrated class scheduling and location management. Delivered a cohesive brand experience across three studio locations.
  • Jetpack Harrier: A reimagination of an all-time classic arcade game from the 1980s. Full game engine built with Claude Code: 6,000+ lines of TypeScript across 20 source files, deployed as a PWA mobile game in two sessions.
  • Learn Assist: AI-powered educational support platform empowering learners with personalised assistance. Designed to benefit all students, with specialised features for neurodiverse learners.

We build production-ready software and websites for SMBs — from inventory systems to customer portals. Faster delivery, lower costs, and full ownership of your solution.

Book AI Training | Hertfordshire, London & Essex

Schedule a consultation to discuss your team's requirements. We typically respond within one business day.

Contact Information

Confidential consultation tailored to your requirements. No obligation. Clear next steps. Free initial call to discuss your team's needs and objectives. Response within one business day.

Frequently Asked Questions

Why do you focus on Replit?

Replit combines hosting, database, and development in one platform — no juggling servers, domains, or DevOps. Applications deploy instantly, updates go live in seconds, and AI assistants handle the technical heavy lifting. Whether we build your application for you or train your team to build it themselves, Replit is the fastest path from idea to working business tool.

What can I build with Replit?

Almost any business application. Common examples include CRM systems, client portals, booking systems, inventory management, internal dashboards, workflow automation tools, and data collection forms. If you currently use spreadsheets or manual processes, there's likely a Replit application that could replace it.

How long does it take to build a Replit application?

Simple internal tools can be built in a single day. More complex applications like a full CRM typically take 2–4 weeks. During training, most participants leave with a working prototype. The speed comes from Replit's AI assistants that help you build without writing code from scratch.

What is included in the training packages?

Both packages include a 6-hour hands-on session with a strong focus on Replit for building business applications, plus ChatGPT, Gemini, NotebookLM & Google AI Studio for productivity. Participants leave with a working prototype. Ongoing support is available separately via a Support Package (6 hours for £1,800) or ad-hoc at £500/hour.

How much does AI training cost?

In-person training is £1,800 for teams up to 8 people, delivered at your office. Online training is £1,200 for teams up to 12 people via Microsoft Teams. Both include Replit hands-on exercises. Ongoing support is available separately: a 6-hour Support Package at £1,800 or ad-hoc sessions at £500/hour.

What areas do you cover?

We deliver in-person training across Hertfordshire, Essex, London and the M25 region. Online training is available UK-wide with the same interactive experience.

Do we need technical knowledge?

No. Replit training is designed specifically for non-technical teams. No coding background required. We teach you to use AI assistants within Replit to build applications — you describe what you need, and the AI helps you create it.

How quickly will we see results?

Most participants start building in Replit the same day. Many leave with a working prototype of an internal tool. Typical time savings of 20–30% on routine tasks using ChatGPT and Gemini within the first week.

What is a Replit Ambassador?

A Replit Ambassador is an officially recognised advocate for the Replit platform, selected by Replit for their expertise, community contributions, and track record of building production applications. Andrew Blumson is one of very few Replit Ambassadors in the UK. Ambassadors represent the highest level of trust and recognition from Replit, going beyond certification to actively shape the platform's community and best practices.

What makes Adevious different?

We're an Official Replit Ambassador and Level 5 Master Builder, certified at the highest level and ranked in the top 0.5% of developers globally. We also use Claude Code CLI from Anthropic for deep code engineering. All our production applications are built using these tools. Training is delivered personally by the founder with 25+ years of business experience. Every session is tailored to your industry.

Can you build custom applications for us?

Yes. We build custom Replit applications that have been running 9+ months with zero downtime. This includes CRM systems, workflow automation, client portals, and internal tools. Alternatively, we train your team to build these tools themselves.

What ongoing support is available?

After training, support is available via Microsoft Teams. A Support Package gives you 6 hours for £1,800, ideal for clients with active projects needing regular updates and enhancements. For urgent one-off requests, ad-hoc support is available at £500/hour with a 1-hour minimum.

How do Replit applications compare to enterprise SaaS?

Traditional SaaS platforms often cost £100,000+ for onboarding and first-year fees, plus £100–200 per user monthly. Replit applications we build or teach you to build eliminate per-seat licensing and vendor lock-in while doing exactly what your business needs.

What is Claude Code and why do you use it?

Claude Code is Anthropic's command-line AI development tool. Unlike browser-based AI assistants, it works directly inside the codebase from the terminal, reading, writing, and refactoring code across entire projects. We use it to build full-stack applications independently, as well as alongside Replit where a project benefits from both. It handles complex debugging, large-scale refactoring, and architectural decisions across complete codebases: front-end, back-end, databases, and APIs.

How does Claude Code benefit my project?

Claude Code means faster delivery and higher code quality. It can trace bugs across dozens of files, refactor entire modules in minutes, and reason about complex business logic. The result is production software that's more maintainable, better structured, and delivered sooner, saving you both time and cost.

Do I need to know about Claude Code to work with you?

Not at all. Claude Code is part of our professional development workflow. You benefit from the results without needing to understand the tooling. Your involvement stays focused on business requirements and feedback, while we handle the technical side using the most advanced AI development tools available.

How do Replit and Claude Code work together?

Replit handles the full development lifecycle: hosting, databases, deployment, and rapid iteration. Claude Code handles deep engineering work: complex debugging, large-scale refactoring, and architecture. Together, they let us deliver production-grade software faster and at a higher standard than either tool alone.

What is Claude Cowork and how can it help my business?

Claude Cowork is Anthropic's desktop AI agent for non-coding business work: document creation, data processing, file management, and client deliverables. Unlike a chat assistant, it operates directly on files in a local folder and can carry out complex, multi-step tasks autonomously. We build custom Skills (markdown-based instructions that encode your quality standards and branding) and configure team Plugins (role-based packages that understand your processes and compliance requirements). The result is an AI setup that produces work to your standards automatically, without constant prompting.

Are you a Replit developer or Replit builder?

Both, and the terms are closely linked. The official Replit certification programme uses the title 'Builder': Andrew Blumson holds Level 5: Master Builder, the highest level available globally, placing him in the top 0.5% of developers worldwide. As a certified UK Replit builder and Official Replit Ambassador, Adevious is among the most qualified Replit developers in the UK.