Windsor Harlow Start a conversation →

Services

Everything Windsor Harlow actually does.

Six practices, about 170 named technologies. We lead with backend, AI/ML and mobile; the rest run to the same standard.

Scope an engagement → Compare engagement models
Lead practices
Backend & Web · AI, ML & MLOps · Mobile
Also delivering
Cloud · Salesforce · Commerce
Regions
Global — Americas, EMEA, APAC
Minimum engagement
Two-week advisory

Start from the problem

01We need to build something newBackend & Web · Mobile · Commerce 02What we have is slow or breakingCloud & DevOps · Backend 03We want AI in the productAI, ML & MLOps 04We are moving to the cloudCloud, DevOps & Infrastructure 05Our Salesforce org is a messSalesforce Development 06We need senior engineers, nowEmbedded team · Retainer

Service catalogue

Six practices, thirty-six service lines.

01

Backend, Web & Distributed Systems

Backends and web apps that hold up as you grow.

You would come to us for

  • A new product built from scratch
  • An application that has outgrown its original design
  • Splitting a monolith without stopping the business
  • APIs other teams can build on

Java & JVM · Node & TypeScript · Frontend · Additional stacks · Distributed design · API paradigms

Lead practice Full practice page →
02

AI, ML & MLOps

AI features that still work once real customers use them.

You would come to us for

  • A chatbot or assistant that answers from your own documents
  • Search that understands meaning, not just keywords
  • Getting an AI prototype ready for real traffic
  • Cutting what your AI costs to run

RAG systems · Retrieval quality · Agentic systems · Orchestration · Serving & inference · Fine-tuning

Lead practice Full practice page →
03

Mobile Development

iOS and Android apps, on the right platform for the job.

You would come to us for

  • A new mobile app for both stores
  • Rebuilding an app that is slow or crashing
  • Getting through App Store and Play review
  • Adding offline or real-time features

Cross-platform · iOS · Android · State & data · Delivery · Quality

Lead practice Full practice page →
04

Cloud, DevOps & Infrastructure

Infrastructure your own team can run after we leave.

You would come to us for

  • Moving off on-prem or a legacy host
  • Cloud bills that keep climbing
  • Deploys that are slow, manual or frightening
  • Systems that fall over under load

AWS · Google Cloud · Azure · Infrastructure as code · Containers & orchestration · CI/CD

13 capability groups Full practice page →
05

Salesforce Development

Salesforce work the next admin can actually maintain.

You would come to us for

  • Custom Apex and Lightning components
  • Untangling years of half-finished automation
  • Connecting Salesforce to the rest of your systems
  • Getting a failing org back under control

Development · Automation · Data · Integration · Clouds · Engineering discipline

6 capability groups Full practice page →
06

Commerce & Product Design

Storefronts and interfaces designed and built by one team.

You would come to us for

  • A Shopify store that has outgrown its theme
  • Migrating a store without losing search rankings
  • Slow pages costing you sales
  • Design that arrives build-ready, not as a picture

Shopify · UI/UX design · Front of funnel · Migration

4 capability groups Full practice page →

Engagement models

How the commercials work.

Any service, any model

ModelWhat it is forCommercialsPricingHandoff docsTypical fit
Fixed-scope projectA defined deliverableFixed price, fixed date Fixed price Included MVPs, migrations, platform builds
Embedded teamSustained capacityRolling monthly Fixed price Optional Teams shipping continuously
Retainer & supportKeeping it aliveMonthly, defined response times Time-based Included Live platforms after launch
Technical advisoryDeciding what to buildFixed price, 2–4 weeks Fixed price Optional Audits, reviews, migration planning

Fixable scope gets a fixed price. We tell you which one you are in before you sign.

Capability index

Search every technology we work in.

How we deliver

The same four stages, whichever service you buy.

Stage 01

Scope

A written scope with the assumptions stated.

Stage 02

Architect

Trade-offs documented: cost, operability, failure modes.

Stage 03

Build

Two-week increments, deployed and demoed. Tests and CI from the first commit.

Stage 04

Hand off

Runbooks, decision records, a walkthrough. Retainer optional, never assumed.

Not sure which service your problem belongs to?

Describe the situation. We will tell you what it needs — including when the answer is another firm.

Scope an engagement →