One Stack. Every Solution.

Every layer of your stack, owned by one team

Web, cloud, AI, security and growth from a single accountable partner. No seams between vendors, and no months lost in them.

120+projects shipped
99.99%average uptime
10+core domains
4continents served

23 disciplines, one contract

All services

Each layer is a practice we staff with senior people. Buy one of them or the whole stack. Either way, one team is accountable.

The four-vendor problem, solved

Same claim as the hero, made concrete: this is what changes when one team owns the whole stack instead of four agencies handing it between them.

Typical multi-vendor stackStackOne
Four vendors, four contracts, four points of failureOne team, one contract, one accountable owner
Security bolted on right before launchSecurity built into the architecture from day one
Context lost at every handoff between agenciesThe same engineers from discovery through production
Billed by the hour, scoped to keep the clock runningPriced by engagement shape, scoped to reach the outcome

How an engagement runs

Four steps, no relay race between departments.

Discover

01

Discover

A short, no-obligation scoping call. We leave with the outcome you need and a realistic shape for budget and timeline.

Assign

02

Assign

One accountable team is staffed across exactly the disciplines the work needs, not a generalist pool, not a bench.

Build

03

Build

Working software every week, async updates plus a standing sync. You see progress, not a status deck.

Run

04

Run

The same engineers stay on for monitoring, on-call and the next iteration. No handover to a different team once it ships.

Recent work

All case studies
StackOne team at work

In production

Systems that stay up when it matters, built by one accountable team.

StackOne engineering

One team

Design, build, security and operations owned end to end.

Government2025

Gov.Digital Portal

A unified citizen-services portal replacing all fourteen, handling millions of requests with zero downtime through the cutover.

increase in citizen engagement40%
Fintech2025

Aura Fintech Dashboard

A real-time financial management platform with global distribution and sub-second analytics across 40+ markets.

real-time data accuracy99.9%

Clients

Companies we build products for, end to end.

Ministry of Influencer
NextGen Academy
AMKT Agro Distributors
Helazone
Tangerine Tours (Pvt) Limited
Kuliyata
TaskA

Partners

Studios and agencies we deliver alongside.

The Chill Agency
Orca Solutions
SwiftGenAI
Kassa Studio
Rech Digital

What it's like to work with us

They took over a migration two other vendors had already failed at, and the cutover was the least eventful hour of the whole project.

R. Fernando

CTO, Gov.Digital Portal

The first team that treated our compliance requirements as an engineering input instead of a document to argue about afterwards.

K. Alwis

Head of Engineering, Aura Fintech

We stopped managing four vendors and started getting one team that actually owns outcomes. The difference showed up in the first sprint.

D. Wickrama

VP Product, Northwind Commerce

Built for regulated environments

Compliance treated as an engineering input from the first sprint, not a report produced before an audit.

Where we work

All industries

Regulated sectors and high-growth ones, which turn out to want the same thing: systems that stay up and can be audited afterwards.

  • Government & Public Sector
  • Enterprise IT
  • Fintech
  • Healthtech
  • SaaS
  • Cybersecurity
  • Startups
Team across 4 continents
  • Americas
  • Europe
  • Asia Pacific
  • Australia

What we build with

Boring where it counts. Proven tools in the load-bearing places, novelty only at the edges.

Platforms
  • Web
  • iOS
  • Android
  • Windows
  • macOS
  • Linux
  • tvOS
  • watchOS
  • Chrome OS
Front-end
  • React
  • Next.js
  • Angular
  • TypeScript
  • Tailwind
  • Framer Motion
  • Storybook
  • Vitest
  • Swift
  • Kotlin
  • Flutter
  • iOS
  • Android
Back-end
  • Node.js
  • Python
  • Go
  • Java
  • C++
  • PostgreSQL
  • MongoDB
  • GraphQL
  • Redis
  • Firebase
  • Supabase
  • Stripe
  • Kafka
  • Elasticsearch
  • Rust
  • .NET
  • PHP
  • MySQL
  • Prisma
Infrastructure
  • AWS
  • Azure
  • Google Cloud
  • Docker
  • Kubernetes
  • Terraform
  • Nginx
  • GitHub Actions
  • Grafana
  • Prometheus
  • GitLab
  • Jenkins
  • Datadog
  • Vercel
  • Netlify
AI
  • OpenAI
  • Anthropic
  • Gemini
  • Mistral AI
  • LangChain
  • pgvector
  • Pinecone
  • Hugging Face
  • Ollama
  • Qdrant
  • Meta
  • NVIDIA
  • PyTorch
  • TensorFlow
Security
  • SOC 2
  • OAuth2
  • SSL/TLS
  • ISO 27001
  • VAPT
  • SIEM
  • HashiCorp Vault
  • Snyk
  • Cloudflare
  • Auth0
Enterprise
  • Odoo
  • SAP
  • HubSpot
  • Zoho
  • Zendesk
  • Jira
  • Notion
  • Zapier
CMS & Commerce
  • WordPress
  • Shopify
  • WooCommerce
  • Webflow
  • Wix
  • Squarespace
  • Contentful
  • Drupal
Game & Immersive
  • Unity
  • Unreal Engine
  • Three.js
  • WebGL
Robotics & IoT
  • ROS
  • Raspberry Pi
  • Arduino
  • MQTT

Notes from production

All insights

Written by the people who were on the call.

We're hiring

4 open roles on senior-led teams. Remote-first · hubs in Colombo & Melbourne.

View open roles

Before you ask

How is this different from hiring an agency?

A typical agency hands you off between departments or subcontracts pieces out. Here, the engineers who scope the work are the ones who build and run it: one team, accountable end to end.

Can we start with just one discipline?

Yes. Most clients start with a single layer, often cloud, security, or web/app, and expand once the working relationship proves out.

How fast can we start?

We respond to every inquiry within one business day, and a scoped Sprint engagement can typically begin within one to two weeks of discovery.

Do you work alongside our existing team?

Regularly. We slot in beside in-house engineers as an extension of the team, or take a layer fully off their plate, whichever the situation calls for.

Tell us what you're building.

One team, one number to call, and an answer within a business day.