---
title: "Vibe Coding Agency London | India-Based AdTech Development"
description: "We build advertising software and adtech apps for London companies. Fast, high-quality development from India using vibe coding."
image: "https://foundrysoft.co/api/og?type=page&title=Vibe+Coding+Agency+London+%7C+India-Based+AdTech+Development&st=We+build+advertising+software+and+adtech+apps+for+London+companies.+Fast%2C+high-quality+development+from+India+using+vibe+coding."
url: "https://foundrysoft.co/services/vibe-coding-advertising-apps-london"
---

Vibe Coding · London · Built in India for London adtech teams

# Vibe coding agency for London

We build advertising software for London companies using vibe coding from India. We write the logic and let AI write the code. This means London agencies and brands get custom adtech tools built in a fraction of the usual time.

Book a 30-min scoping call [See our work](https://foundrysoft.co/work)

No sales script. You talk to the engineers who'd build it.

9+ hrs

Timezone overlap

Our team works a shifted day so you get real-time standups and same-day turnarounds in your time zone, not next-morning replies.

100%

You own the IP

Every line of code, model weight, and prompt is yours from day one. NDAs and clean IP assignment are standard, not an upsell.

Senior

No juniors hidden on the bill

You work directly with the engineers building your system. No account managers sitting between you and the people writing code.

Weeks

To first deployment

We move from scoping to a working system in production in weeks. Most engagements ship something usable inside the first month.

## What we build

Concrete systems we ship, tuned to your data and your stack.

### UK compliance tools

Adtech built to respect GDPR and UK data privacy laws from the start.

### Multi-currency reporting

Dashboards that handle GBP, EUR, and USD conversions accurately.

### Local publisher integrations

Direct integrations with UK and European ad networks.

### Client portals

Secure portals for your clients to view their campaign performance.

## How we work

01

### Scope & evals

We pin down what success means and build the evaluation set before writing the feature, so quality is measured, not guessed.

02

### Build in the open

Weekly demos against real data. You see progress every week and can change direction before it gets expensive.

03

### Ship & instrument

We deploy with logging, cost tracking, and guardrails in place, then tune against production traffic.

04

### Hand off or stay

Take the keys with full docs, or keep us on for iteration. Either way you're never locked in.

## Questions, answered

### Do you overlap with UK hours?

+

Yes. We have strong overlap with the UK working day for standups and collaboration.

### Do you understand GDPR?

+

Yes. We build data privacy into the architecture. We do not store data we do not need.

### Can you invoice in GBP?

+

Yes. We can bill in GBP so you do not have to deal with currency conversion fees.

### How do we start?

+

We start with a quick scoping call to understand what you want to build and confirm if vibe coding is the right fit.

## Let's scope your build.

Tell us what you're trying to ship. We'll tell you honestly whether AI is the right tool and what it would take.

Start the conversation

```json
{
  "@context": "https://schema.org",
  "@type": "Organization",
  "name": "FoundrySoft",
  "url": "https://foundrysoft.co",
  "logo": "https://foundrysoft.co/logo.svg",
  "description": "FoundrySoft builds production-grade software and AI systems for US companies, from an India-based team of senior engineers.",
  "sameAs": [
    "https://github.com/foundrysofthq",
    "https://www.linkedin.com/company/foundrysoft",
    "https://www.instagram.com/foundrysoft/"
  ]
}
```

```json
{
  "@context": "https://schema.org",
  "@type": "WebSite",
  "name": "FoundrySoft",
  "url": "https://foundrysoft.co"
}
```

```json
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": "Service",
      "name": "Vibe Coding Agency London | India-Based AdTech Development",
      "description": "We build advertising software and adtech apps for London companies. Fast, high-quality development from India using vibe coding.",
      "serviceType": "Vibe Coding · London",
      "url": "https://foundrysoft.co/services/vibe-coding-advertising-apps-london",
      "provider": {
        "@type": "Organization",
        "name": "FoundrySoft",
        "url": "https://foundrysoft.co"
      },
      "areaServed": {
        "@type": "Country",
        "name": "London, UK"
      }
    },
    {
      "@type": "FAQPage",
      "mainEntity": [
        {
          "@type": "Question",
          "name": "Do you overlap with UK hours?",
          "acceptedAnswer": {
            "@type": "Answer",
            "text": "Yes. We have strong overlap with the UK working day for standups and collaboration."
          }
        },
        {
          "@type": "Question",
          "name": "Do you understand GDPR?",
          "acceptedAnswer": {
            "@type": "Answer",
            "text": "Yes. We build data privacy into the architecture. We do not store data we do not need."
          }
        },
        {
          "@type": "Question",
          "name": "Can you invoice in GBP?",
          "acceptedAnswer": {
            "@type": "Answer",
            "text": "Yes. We can bill in GBP so you do not have to deal with currency conversion fees."
          }
        },
        {
          "@type": "Question",
          "name": "How do we start?",
          "acceptedAnswer": {
            "@type": "Answer",
            "text": "We start with a quick scoping call to understand what you want to build and confirm if vibe coding is the right fit."
          }
        }
      ]
    },
    {
      "@type": "BreadcrumbList",
      "itemListElement": [
        {
          "@type": "ListItem",
          "position": 1,
          "name": "Home",
          "item": "https://foundrysoft.co"
        },
        {
          "@type": "ListItem",
          "position": 2,
          "name": "Services",
          "item": "https://foundrysoft.co/services"
        },
        {
          "@type": "ListItem",
          "position": 3,
          "name": "Vibe Coding · London",
          "item": "https://foundrysoft.co/services/vibe-coding-advertising-apps-london"
        }
      ]
    }
  ]
}
```