Development capacity for agencies, custom systems for businesses.
We work as a development subcontractor for marketing and web agencies, on a white label basis. For businesses we build custom web applications, client portals and system integrations, using Next.js, React, TypeScript and Node.js.
About us
What you get
when you work with us
You do not fill in a form and receive something weeks later. You know where the project stands, what is happening and why. Two of us work on it, so there is always a specific person to ask.
Handover does not end the work. If you have a question, need a change, or the system grows, we are reachable. You do not get a support desk. You get the people who wrote the code.
Why work with us
Predictable deadlines
Estimates are given in writing and delivery runs in two week cycles. If a slip is coming, you hear about it in advance, not on the due date.
Direct contact with the developers
No project management layer between the question and the answer. You talk to the person doing the work.
Code and accounts you can take with you
We hand over the source code and the accounts whenever you ask. We do not require exclusivity and we do not withhold access.
Reachable after handover
We keep answering once the project ships. Bug fixing terms are set out in our terms and conditions, not promised verbally.
Capabilities
What we build
Web applications and client portals
Authenticated interfaces, role based permissions and custom admin panels. The functionality template solutions do not cover.
System integration and custom APIs
Connecting payment, invoicing, shipping, CRM and ERP systems. Designing REST and GraphQL APIs, and consuming existing ones.
Work on existing codebases
We take over running projects. Bug fixing, new features, performance work and dependency upgrades.
Corporate and multilingual sites on Next.js
Server side rendering, multiple languages, structured data and measurable load times.
Technical operations and availability
Updates, monitoring and incident handling after launch. Terms are set in a separate maintenance agreement.
How we work
How we will work with you
YOU SEE WHERE THE WORK STANDS
Consultation
We start by understanding the task, then propose a solution. A short call is enough to establish what is needed and agree on the direction.
Development
We plan and build, and progress stays visible throughout. If something changes, you hear about it at the time, not at handover.
Testing
We review the work before handover. We check it on phones, tablets and desktop browsers.
Launch
We put the system live and show you how to run it. We stay reachable afterwards.
Professional background
Where the experience comes from
There are two of us, with more than 20 years of development experience between us. That experience was built during previous employment, on projects we worked on as developers.
- OTP
- K&H
- Porsche
- Austrian and Danish clients
- Public sector projects
These organisations were clients of our previous employers. They are not DEV DUO clients, and DEV DUO was not a supplier on these projects.
Selected work
Our work
VibeVaults
A feedback collection widget for agencies. Authentication, permissions, real time features and subscription management.
Tar Engineering
A bilingual site for a machine manufacturing company, built on Next.js.
Get in touch
Let us talk
about the work
Tell us briefly what you need and we will get back to you.
