Startup Development

The platform around the model that takes AI features from demo to production: agents that plan, act and verify, and MCP servers over a business's own systems. Around them sit routing across model providers, durable workflows for long jobs, memory scoped per client, and guardrails that keep a person on every write. The live MCP server behind this site is the working example, and the same engineering ran on an agent-first AI workflow platform serving more than a thousand tenants. It runs on self-hosted infrastructure, so nothing leaves the building.

Fully Booked is a booking platform for UK minibus and coach hire and the job-sharing network of operators behind it. A customer describes a trip once on the customer website and receives offers from the operators who can serve it, ranked with reviews and vehicle photos, then books with a small protected deposit. An operator who cannot take a job refers the customer from the app, and earns a share when another firm in the network carries it. Around that loop sit quotations, cancellations, Get Covered, partner contacts, stored bookings, a wallet, business pages and the Prebooked widget, all on one backend and run from an admin control room.

GB

Contract

Remote

7

5.0

Land somewhere you do not speak the language and help is all around you, unreachable. Carriage makes it reachable: turn on your dots and see people nearby who share a language and are willing to help, approach one, and once they accept you can message, call or meet face to face. Built as sole developer across a React Native app and a NestJS GraphQL backend, delivered milestone by milestone from an empty navigation shell through social login, profiles, radius discovery, the approach flow and messaging. Eleven milestones were accepted across a year and a half on one continuous engagement, closing at version 1.8.0.

US

Freelance

Remote

2

5.0

An app that turns the book 27 Pearls of College Wisdom into goals students finish each week, with a reward they choose for every ten. Each part of college life, from enrolment to professors, classes and leaving college, becomes a short list of concrete goals a student swipes off when done. Built in React Native and Expo on a NestJS, GraphQL and MongoDB backend, across four contracts with one founder between 2022 and 2025.

US

Freelance

Remote

4

5.0

SportPal shows players the pickup games happening near them tonight and helps organisers fill their games, shipped as a full product in six weeks. Players browse as a guest, verify a phone only when they want to join, and RSVP to public games or accept invitations to private ones; organisers set who can join and how many players they need. React Native and Expo on iPhone and Android, with a NestJS, GraphQL and MongoDB backend and Twilio verification.

CA

Freelance

Remote

1

5.0

An offline-first tablet app that lets a distributor's sales reps take orders, check stock and print invoices at the retailer's counter, with or without signal. Stock is checked as the order is built, every invoice takes the next number in sequence and keeps it through sync, the PDF prints over Bluetooth before the rep leaves, and a filter shows which shops still owe money. It moved real stock and printed real invoices in the field.

US

Freelance

Remote

2

5.0

CoverFanz puts performers, venues and fans on one app: venues book performers on written terms, and fans find the next show on a map. A booking carries the event, the times and the fee, the performer attaches their own terms before it goes live, a confirmed event can carry a promotion, and reviews build each performer's record. The backend, the iPhone and Android app and the admin dashboard shipped inside one month in 2022, and both stores approved it on the first attempt.

US

Freelance

Remote

2

5.0

An open source terminal app for macOS and Linux, released by Webanion under the MIT license: saved commands that open up to four terminals side by side in one tab, in a layout Termi remembers, and can start with the app; split, reopen, a command palette, a shortcut sheet, a built-in guide, and CPU, memory and network figures in the sidebar. Electron, React, TypeScript, xterm.js and node-pty, built with electron-vite and tested with Vitest, with an MCP server so an assistant can manage the saved commands. Source at github.com/webanion/termi.

A quiet desktop app for Linux, Windows and macOS that counts keyboard and mouse use, charts it and exports reports, built for Ja Turna in five weeks. It counts presses without recording what anyone types, charts a day or a lifetime and stays smooth over months of data, downloads any table as a PDF a manager can share, and backs up its whole history to one file for a new machine. Electron, React, TypeScript and Redux from one codebase.

BD

Full-time

On-site

1

5.0

A cooperative finance organisation was running member records, savings, loans and investor capital across paper and spreadsheets, with no way to audit a branch or close a day cleanly. We built one system that holds all of it: member registration, daily collections, loan application through to disbursement, a multi-branch ledger, investor capital and an audit log that records who did what. Officers record each collection the moment it is made, managers approve loans and close the day, and the permission model decides what each role can see and do rather than hiding buttons. Everything shown in this case study runs on seeded demonstration data; real member records never appear in portfolio material.

BD

Full-time

On-site

A static portfolio site could not carry work in five languages or keep pace with the writing behind it, so we replaced it with a platform. A headless CMS holds every case study, article and record; a Next.js front end renders them in English, Bengali, Spanish, Hindi and Chinese; and an MCP server exposes the same content to AI assistants, so an agent asked about this work reads the source rather than guessing from a scrape. Search, media handling, an approval flow and a public discovery layer all run on it. The proof is recursive: the page you are reading is served by the system this entry describes.

A website for the Sukalyan Research Group at the Department of Pharmacy, Jahangirnagar University, led by Professor Sukalyan Kumar Kundu: seven research areas with their techniques and papers, a filterable publication list of one hundred and twenty-four Google Scholar entries grouped by year, the principal investigator's profile, the members by name and portrait, an alumni destinations wall, a Lab Life gallery and a four track join page with an email checklist. Next.js with static export, React and TypeScript, Tailwind CSS, all content behind one query function so the move to a headless CMS changes nothing else. Deployed as a single container on a self-hosted Kubernetes cluster.

BD

Full-time

On-site

The customer side of Fully Booked. A customer who comes to the site directly, or through an operator's referral, fills in one form, receives offers from operators in the area with reviews and vehicle photos, chats without exposing contact details, and books with a small deposit that is held until the trip goes ahead. Every operator also has a business page where customers can book them directly and come back for the next trip.

GB

Contract

Remote

7

5.0

The control room of the Fully Booked network. The founder vets new operators before they can quote, approves offer templates and vehicle photos, moderates conversations and reviews, and traces every booking, cover, referral, payment and payout. Fees, limits and each operator's permissions are settings, and the dashboard works from a phone as well as a desktop.

GB

Contract

Remote

7

5.0

The admin dashboard that let CoverFanz's founder run a performer marketplace from launch day without asking a developer. Every fan, performer and venue sits in one list with its subscription state, new venues wait in an approval queue until their address is checked, reports land with the reason attached, and the kinds of act are a list the founder controls. It was built in the same month as the apps, on the same GraphQL API.

US

Freelance

Remote

2

5.0

A custom WordPress website that Grace Bangla Language Center's own staff have run for years, for a school that teaches Bangla to foreigners living in Dhaka. The site carries the school's own identity, explains the courses and teaching method before a newcomer's first call, and lets the staff change every page, notice and event themselves. The project closed with video tutorials instead of a support contract.

BD

Full-time

On-site

1

5.0

One membership for science, health and answers in Bangla: articles, videos, timed quizzes, a Q&A community and consultations on one platform its own team ran. Contributors wrote through a built-in editor and earned points for every answer, quizzes kept their clock on the server so results could not be gamed, and readers booked a consultation with a nutritionist by category. Built in 2020 on Node.js, Express and MongoDB.

BD

Part-time

Hybrid

1

5.0

The studio's own infrastructure on a self-hosted Kubernetes cluster, planned in February 2026 and maintained every day since: its website, CMS and MCP servers and the client platforms it looks after, served through Cloudflare tunnels, with every database dumped and checked each night, metrics and alert rules that reach a phone, an outage monitor outside the house, a container registry and an npm registry, and one private console that joins merges, runs, images, pods and nodes on a single page.

Builds and deploys moved from GitHub's hosted runners, where every run started on a fresh machine and releases waited on queues and incidents, to a runner pool at home: a build machine that takes every job while it is up, and standby runners on an always-on server behind a watchdog that fails towards shipping. Images go to a private container registry and the studio's libraries to a private npm registry, both in the building, and every run is archived past GitHub's retention. The slowest deploy went from eight minutes twenty-four seconds to three minutes five, and CI came out a third faster.

A second machine that can be switched off at any moment joined a running single-node cluster without a change to any application. An always-on server keeps the control plane, every database and volume and the first copy of every service; the build machine takes the builds and second copies of stateless services behind a taint, and those copies wait rather than fall back when it sleeps. It powers itself off when the work runs out and comes back when a job is queued, a console shows every node, workload and availability span, and every CPU request on the always-on server was measured, taking its reservations from eighty-four to fifty-six percent of what it can allocate.

Fully Booked ran on managed cloud infrastructure with a bill that grew every month and a stack nobody fully owned. We moved the whole platform onto a self-hosted Kubernetes cluster without a minute of downtime for the people using it. The cutover covered DNS, ingress, databases and the release pipeline, staged so that traffic shifted only once each layer had been proven on the new cluster. Nobody using the app that week knew anything had happened, which was the point. The recurring bill became owned hardware, and the same cluster now carries the platform's weekly releases.

GB

Contract

Remote

7

5.0

Fully Booked shipped as five Docker services on one DigitalOcean droplet behind Cloudflare, so a very small team could run a marketplace that holds deposits. One repository built every image, a compose file and a Makefile reduced a release to pull, build and up, a Caddy proxy handled certificates and security headers, and Playwright rendered every quote and invoice PDF on the server. Because the services were independent from the start, they later moved to a self-hosted Kubernetes cluster without a rebuild.

GB

Contract

Remote

7

5.0

The Fully Booked operator app reached the App Store and Google Play and keeps passing review, so UK minibus operators can run their business from their phone. The listings sell the business case one benefit per screenshot, compliance is built into the product with in-app account deletion and privacy declarations that match what the app collects, links open the app directly, and releases are staged so an update never breaks an operator's working day.

GB

Contract

Remote

7

5.0

A finished 27 Pearls app became approved listings on the App Store and Google Play inside a one-week engagement, without a round of rejections. The week covered release builds and signing, listing copy written around the student's benefit, screenshots for every required device size, privacy declarations that matched what the app collects, and a reviewer account that worked. The app remains on Google Play today.

US

Freelance

Remote

4

5.0

Prebooked is an embeddable booking widget, published on npm, that puts Fully Booked's enquiry form, messenger and quote flow on any operator website, from WordPress and Elementor to React and plain HTML. Enquiries land in the operator's app as direct customers, and a small fee applies only when a trip is booked.

GB

Contract

Remote

7

5.0

A family of versioned, framework-neutral packages that every Webanion frontend and backend starts from, with a NestJS layer on the server and React, Vue and Expo bindings in the client: authentication with passkeys and single sign-on, feature flags, an audit trail, multi-tenant data, encryption, files, documents, messaging, real-time and offline, webhooks, workers and a UI kit. Each lives in its own private repository with its own releases and is installed from the studio's private npm registry, and the studio's console shows which consumer is behind on which release.

A promotional video that walks a UK minibus operator through Fully Booked's benefits in the order they matter, made from the real app rather than stock footage. It opens on the operator's own problem, gives each benefit one beat on a real screen, and was cut to several lengths, from a few-second hook for social feeds to a full version for landing pages and the store listings.

GB

Contract

Remote

7

5.0

Store screenshots, a feature graphic, an app icon and email art, made in Photoshop from real screens so a young platform looks established to operators. The screenshots tell the pitch in five swipes at every size Apple and Google require, every email opens with its own illustration in the brand colours, and the icon and splash screens carry the logo of two hands meeting.

GB

Contract

Remote

7

5.0

Every Fully Booked screen began as a sketch the founder approved before any code was paid for, and each answers an operator's or a customer's problem. The operator home screen became a menu of income, Get Covered kept the order of its hand-drawn flow, quotes and cancellation letters came from the founder's own wording, and the admin grew from five wireframed tabs into the network's control room. The MVP's screens were designed by another designer at Webanion; I redesigned phases 2, 3 and 4 myself in Figma, working from these flows.

GB

Contract

Remote

7

5.0

Each phase of Fully Booked was wired as a clickable Figma prototype, so the founder could try it, question it and approve it before paying for it to be built. Three files, for the app, the customer website and the admin, share one set of styles and components, and the documents operators send are prototyped with the tap that sends them. Developers built from finished frames rather than guesses, and each phase stayed on scope. The MVP was designed by another designer at Webanion; the redesign in phases 2, 3 and 4 is my own.

GB

Contract

Remote

7

5.0

Six advertisements, each selling one Fully Booked benefit to UK minibus and coach operators, built in Canva from real app screens. Converting enquiries, a booking hub on the operator's own website, quotes in seconds, every booking in one place, cover from trusted partners, and paying only per booking: one promise per ad, one shared look, and components that make the next ad a matter of minutes. The same visuals went on to power the promotional video.

GB

Contract

Remote

7

5.0