AI automation & custom software · London, working worldwide

AI automation & custom software for your business.

Let the robots do the boring bits. We build AI automations that take the repetitive stuff off your team's plate: the copy-pasting, the inbox sorting, the Monday-morning reports. If someone does it the same way every week, there's a good chance we can automate it.

  • Working version in days
  • Fixed-price builds
  • You own the code

Software we’ve built for

AI changes every month. We keep testing the new models as they land and build so you can switch to a better one without starting over. No lock-in, ever.

  • GPT
  • Claude
  • Gemini
  • Grok
  • Muse
  • Mistral
  • DeepSeek
  • Qwen
  • Kimi
  • Jev
  • Local models

Your team is great.
Their to-do list isn't.

None of that needs a person. Hand it to a machine and give your team their time back for the work that does.

  • Someone copies data from one system into another. Every. Single. Day.
  • Your inbox has turned into a to-do list nobody agreed to.
  • Reports get built by hand, and they're out of date by Tuesday.
  • Customers ask the same ten questions, and someone answers every one.
  • The off-the-shelf tool almost fits. Almost.

Pretty much anything
that runs on a computer.

Here's where we usually start. Not on the list? Ask anyway, because that's often where the interesting projects are.

Email & document processing

AI that reads invoices, orders, contracts and forms, pulls out what matters and puts it where it belongs.

  • Invoices
  • Inbox triage
  • PDFs & scans

Connecting your apps

Your CRM, accounts, spreadsheets and shop finally talking to each other. No more copy-pasting between tabs.

  • CRM sync
  • Xero & QuickBooks
  • APIs & webhooks

AI assistants on your own knowledge

Assistants that answer from your docs, policies and product info, for customers or your own team, and know when to pass to a human.

  • Customer support
  • Internal helpdesk
  • Your data only

Reports that build themselves

Numbers pulled from wherever they live, summarised in plain English and dropped into your inbox or Slack on schedule.

  • Weekly summaries
  • Dashboards
  • Alerts

AI agents for multi-step work

For jobs with a bit of judgement in them: research, lead qualification, drafting replies, checking documents. A human signs off where it matters.

  • Agents
  • Approval steps
  • Tool calling

Custom software, when nothing else fits

Sometimes the answer is a proper app. Web, mobile, APIs, cloud, or modernising the old system everyone is scared to touch.

  • Web & mobile
  • APIs & cloud
  • Legacy systems
Invoice processingInbox triageCRM syncAI assistantsAI agentsAutomated reportsDocument checksLead qualificationCustom apps

What this looks like
in real life.

Every business has jobs that waste hours, delay sales or quietly lose money. Here are a few examples of what we could take off your plate. The details depend on how your business works.

Sales & pricing

Quotes that price themselves

WhenA customer emails a complicated request for a quote

ThenProducts, quantities and specs are pulled out and priced from your costs, stock and pricing rules. A draft quote is ready for approval, without rebuilding it from scratch.

Useful for: Manufacturing, wholesale, trades, equipment suppliers

Proposals & tenders

Proposals written in minutes

WhenYou finish a customer call or receive a project brief

ThenA first draft is assembled from your past proposals, services, case studies and pricing guidance, in your format and tone. Your team polishes it instead of facing a blank page.

Useful for: Consultancies, agencies, construction, professional services

Orders & operations

Orders without the copy-pasting

WhenCustomers send orders by email, PDF or spreadsheet

ThenEach line is matched to your catalogue and checked for gaps or mismatches. The order is prepared in your system for approval, with nobody retyping it.

Useful for: Wholesale, distribution, manufacturing, suppliers

Billing & revenue

Work done. Nothing missed on the invoice.

WhenA job finishes, timesheets arrive or the client asks for extra work

ThenJob notes, agreed rates, materials and extras are checked against the invoice draft. Anything billable that's missing is flagged, with evidence, before it goes out.

Useful for: Construction, logistics, field services, staffing

Payments & cash flow

Unpaid invoices that chase themselves

WhenAn invoice becomes overdue

ThenPayment status is checked and polite reminders go out under your rules. Disputes and unusual cases go to a person, not another reminder.

Useful for: Agencies, contractors, consultants, business suppliers

Bills & bookkeeping

Supplier bills without the typing

WhenSupplier invoices arrive by email as PDFs or photos

ThenSupplier, amounts and VAT are read, checked against what you ordered and drafted in your accounting software. Mismatches are held; a person approves before anything is paid.

Useful for: Trades, wholesale, hospitality, agencies, offices

Leads & follow-ups

Enquiries that never go cold

WhenA new enquiry arrives by email or through your website

ThenThe details are captured, organised and sent to the right person. If nobody replies, a follow-up is scheduled, so good leads don't slip through the cracks.

Useful for: Trades, agencies, service businesses, B2B suppliers

Customer service

Customer requests without inbox chaos

WhenQuestions, changes and problems land in a shared inbox

ThenRequests are grouped, prioritised and assigned. Routine questions get draft replies from approved information; anything sensitive or unusual goes to a person.

Useful for: Property management, facilities, suppliers, service businesses

Reports & documentation

Reports that practically write themselves

WhenNotes, results and documents arrive at the end of a job or period

ThenA draft is assembled in your template, with sources referenced and missing details highlighted. Experts spend their time reviewing, not formatting.

Useful for: Inspections, professional services, compliance, operations

Got a task like this? Tell us about it →

“AI can't write real software.”
We hear that a lot.

We've proved it wrong more than a few times. With AI doing the heavy lifting and an experienced engineer steering, software that used to take months, or even years, now takes days or weeks.

The old way

  • A team of developers, testers and project managers
  • Months of meetings and specs before anything works
  • Every change means a change request, and more waiting
  • A budget only big companies could justify

The new way

  • One senior engineer working with AI agents
  • A working first version in days, not a drafted spec. We talk about something real
  • Changes made as you test, often the same day
  • A fraction of the cost, and you own all of it

Built from scratch

Web apps, mobile apps, internal tools, customer portals and APIs. Not just automations: complete, production-ready software.

Senior judgement on every line

AI writes fast, and 20 years of experience decide what ships. Everything is tested, reviewed and secured to the standards we learned building banking and payment systems.

Ideas that were too expensive are back on the table

That internal tool you gave up on because the quote was huge? It's worth asking again. Things we couldn't dream of building a year ago are now a normal week's work.

No big-bang projects.
Small wins, in days.

You don't need an “AI strategy” to get started. Start with one annoying task, and once it works, pick the next one.

go-live-check

→ checking automation before go-live

✓ tested on real emails, edge cases too

✓ human approval on anything unusual

✓ alerts if something fails

live, and handed over_

  1. 01

    Free chat

    Tell us what eats your week. We'll tell you honestly whether automating it is worth it. If the answer is a spreadsheet formula, we'll say so.

  2. 02

    Pick one thing and build it

    We start with the task that pays back fastest, agree a fixed price and build it in days or weeks, not months.

  3. 03

    Run it, then grow it

    It runs on your real data, with a human checking it until you trust it. Then we move on to the next thing, or hand it over to your team with proper docs.

AI demos are easy. Reliable ones aren't.

Anyone can wire up a chatbot over a weekend. Making it work on a Monday morning, with messy real data and edge cases nobody planned for, is the hard part. That's where years of building payment and banking systems pays off.

01

Humans stay in charge

Anything risky or unusual goes to a person for approval. The AI does the legwork, and you make the calls.

02

Your data stays yours

The AI only sees what it needs. We can use UK/EU-hosted providers, servers in your own region, or run models locally when it matters.

03

Built not to break

Logging, retries and alerts, the habits you learn building payment systems. If something fails, someone knows.

04

You own everything

The code, the accounts, the docs. No lock-in and no mystery boxes.

We like websites
that show prices.

So here are ours. Every project is a bit different, but you'll always know the price before we start.

First chat

Free

30 minutes. No slides, no hard sell. Just your problem and honest advice.

Small automation

From £1,500

One workflow, built, tested and running, at a fixed price. Most land between £1,500 and £5,000.

Bigger builds

Fixed quote

Assistants, agents and custom apps. Scoped together, with the price agreed before any work starts.

Looking after it

From £150 / month

Monitoring, fixes when something changes, small tweaks and a quick call whenever you need one.

Prices are shown in GBP; we can also quote and invoice in EUR or USD. Running costs such as AI usage and hosting are separate. We estimate them before you commit.

Small studio.
No middlemen.

Altersoft is a small studio run by Jakub. The person on your first call is the person who designs and builds your automation. No account managers, no hand-offs, no junior team learning on your project.

Jakub has spent 20 years building software, most recently as a tech lead in London fintech. He uses AI every day, from coding agents to LLM APIs, tool calling and speech-to-text, and knows where it shines and where it needs supervision.

20years building software
10+organisations, from startups to household names

What Jakub has worked on

Finance

Systems where mistakes cost real money

Banking, lending and payment platforms built on event-driven cloud services, with integrations and long-running workflows that have to get it right every time.

Scale

Platforms used by millions

Services behind busy consumer websites and apps, built to stay fast and up when the traffic arrives.

Integration

Making systems talk to each other

APIs, messaging, search and data pipelines connecting systems that were never designed to work together.

Leadership

Leading teams & untangling legacy

Technical leadership, architecture, mentoring, and modernising older systems without a risky big-bang rewrite.

AI

AI in daily practice

Coding agents, LLM APIs, structured outputs, tool calling and speech-to-text, used every day in our own work, not just on slides.

Small business

Warehouse, invoicing & payroll systems

Custom business software for SMEs, including warehousing, distribution, bookkeeping, payroll and CRM. This is where Altersoft started.

Fair questions.

I don't know anything about AI. Is that a problem?

Not at all. You know your business and we know the tech. Just tell us what's annoying, and we'll work out the rest.

Will this replace my staff?

It replaces tasks, not people. The aim is to take the dull, repetitive bits away so your team can spend time on the work that needs a human.

Is my data safe?

Privacy is designed in from the start. The AI only sees what it needs, data stays in your own accounts where possible, and we can use UK/EU-hosted providers, servers in your own region, or local models.

What tools do you use?

We don't have a favourite tool. We pick the best one for the job. That usually means custom workflows built in C#/.NET, Python, Node.js or Rust, with the right database behind them, running on Azure, AWS or your own servers. The AI part can be GPT, Claude, Gemini, Mistral or local models. And we never lock you into one provider. Nobody knows where AI goes next, and today's best model could be beaten next month, so we build things that can switch easily. AI changes fast, and so do we.

What if it breaks?

Everything we build logs what it does and alerts someone when it fails. We can look after it for you, or hand it over with documentation so your team can run it.

Do you work outside the UK?

Yes. We're based in London and work with clients anywhere: the US, Europe, Asia and beyond. Everything runs over video calls, shared documents and regular written updates, and we book calls at times that suit your time zone. If your data needs to stay in your country or region, we can host your automation there. Support continues outside London hours, and we can quote and invoice in GBP, EUR or USD.

Got a task that eats your week?
Let's get rid of it.

Drop us a line about what's bugging you. A couple of sentences is plenty. You'll hear back from a real person (we know, ironic).

hello@altersoft.co.uk

Or call +44 7441 113592

Outside the UK? Tell us your time zone and we'll book the first call at a time that suits you.