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Software that hits hard & ships fast.

We design and build unapologetically effective software for ambitious businesses and modern households. Web & mobile apps, internal tools, home automations, integrations, data platforms, and AI features—delivered with thick borders, sharp shadows, and zero fluff.

About Us

London · UK

ISA BAR FIN LTD is a product-minded engineering studio. We fuse strategy, design, and build to deliver software that is brutally simple and commercially sound.

  • Senior engineers + product designers only.
  • Security-first: SSO, secrets, and audits by default.
  • Transparent delivery: weekly demos, measurable outcomes.
Angular architecture with strong geometry

Services & Solutions

From idea to ship

Product & Tech Strategy

Discovery, scoping, roadmaps, architecture decisions. We cut scope, not value.

Web & Mobile Apps

React/Next, TypeScript, Node, Python. iOS/Android via React Native. Offline-first, accessible, fast.

Automations & Domestic Apps

Smart-home controls, family dashboards, energy tracking, personal finance helpers.

Data & Integrations

APIs, ETL, analytics, dashboards. Stripe, Xero, Shopify, HubSpot, HomeKit, Alexa & more.

AI Features

Search, summarisation, routing, OCR, RAG, custom assistants. Ethical and private by design.

Industries Served

We move across domains
Financial Services
KYC, risk dashboards, client portals.
Retail & eCommerce
Headless storefronts, OMS, fulfilment.
Healthcare
Scheduling, telehealth, secure records.
Real Estate
Property search, deal rooms, analytics.
SMEs & Startups
MVPs, internal tools, integrations.
Domestic
Smart-home apps, energy, family finance.

Why Choose Us

Differentiators
Senior-only team
No hand-offs, no training project—just seasoned builders.
Design with teeth
Thick borders, sharp shadows—clarity that converts.
Security-first
OWASP-influenced patterns, SSO, least privilege, audit trails.

Case Studies

Selected work
Downtown skyline at dusk with lights

Payments Ops Portal

Consolidated reconciliation workflow cut 
manual effort by 60% for a finance team.

Stack: Next.js · Node · Postgres · Stripe
Concrete texture close-up

Home Energy Dashboard

Real-time usage + alerts. Families reduced energy bills by 15–20% in 3 months.

Stack: React Native · HomeKit · MQTT
Brutalist building with deep shadow

Retail Click-to-Fulfil

Headless storefront + OMS integration; NPS up 18 points, returns down 9%.

Stack: Remix · GraphQL · Shopify

Testimonials

Clients speak
“Clear, fast, fearless. They shipped the features we kept postponing for a year.”
— COO, fintech
“The domestic energy app pays for itself monthly. Beautifully simple.”
— Household pilot user
“They cut scope by half and doubled impact. Brutal focus.”
— Founder, retail scale-up
“Security posture was rock-solid from day one.”
— Head of IT

Insights & Resources

Request a deep-dive
Modern architecture with grid shadows

Scope like a rebel

How to cut features without cutting value: a ruthless approach to MVPs.

Steel staircase with strong lines

Security by default

SSO, permissions, secrets, and logging—what “secure enough” really looks like.

Street texture with high contrast

AI without the hype

Practical AI features that save time and money—no magic wands, just value.

FAQs

Straight answers
How do projects start?

We begin with a short discovery (1–2 weeks) to align on goals, users, and scope. You get a roadmap, architecture notes, and first designs.

Typical timelines?

Small features: 1–3 weeks. MVPs: 6–12 weeks. Platforms: phased delivery. Weekly demos keep momentum and visibility.

Code ownership & IP?

You own 100% of the deliverables and IP. We work in your repos and CI/CD whenever possible.

Support after launch?

Yes—SLAs and retainers for maintenance, small enhancements, monitoring, and security updates.

Pricing & Engagement

Simple & transparent

Fixed-Scope

From £8k — £60k

Clear outcomes, fixed budget. Best for pilots and tightly scoped builds.

  • Discovery included
  • Milestone billing
  • Risk buffer baked in

Time & Materials

£80 — £140 / hr

Flexible priorities with weekly planning. Perfect for evolving products.

  • Weekly demos
  • Transparent timesheets
  • Cancel anytime

Dedicated Squad

From £12k / mo

Cross-functional team embedded with you. Velocity without hiring.

  • 1–4 senior makers
  • Blended rate
  • Rolling quarterly plan

Note: Ranges are indicative; we’ll shape the most efficient path to impact.

Contact & CTA

Let’s build

Start a conversation

Tell us about your goals. We’ll reply within one business day.






Call us

Phone: 07537134743

Email: info@isabarfin.com

Registered office
20 Vincent Square
London, England
SW1P 2NA

Logo: ISA BAR FIN LTD

London brutalist facade with texture