Service · Full Web Team for Startups
Full Web Teamfor Startups
Instead of hiring 5 engineers and managing them — get a full team that's already been through it.
A startup doesn't have three months for hiring. Doesn't have a senior salary to spend on a CTO who hasn't decided what to build yet. And doesn't have patience for VC philosophy about "keeping engineering in-house." What it has — a timeline. A budget. And users who are waiting.
We're your development team. Not an outside vendor — a partner. We come in as a complete dev team: an experienced CTO, full-stack engineers, a designer, and DevOps. You drive the vision. We build the product.
01 / Who it's for
Who this is for
We work with startups at every stage — from pre-seed to post-seed, with technical and non-technical founders alike.
02 / Track A · A defined MVP project
MVP development with a clear scope and a clear test goal
A first version built to answer one question with real users — not a small version of the full product. This is what gets delivered, what is included, and how you know the project is done.
What does the first version need to teach you?
Before scope comes a question: who the user is, what the problem is, and what they will do differently once the product exists. That hypothesis, one core flow and a now/later table are the input to the project. How to build them — in the guide:
How to define an MVP you can test with users — the full guideWhat is delivered
Scope and exclusions
An MVP project is defined by what is not in it as much as by what is. This is our default split — and it changes according to each project's scope document.
| Area | Inside the MVP project | Outside the project — separate agreement or on your side |
|---|---|---|
| Specification | Focused specification of the core flow: entities, roles, states and the exceptions that must be handled in version one | A full product roadmap, market research, a business plan |
| Design | UX and UI for the core-flow screens, at a finish level suitable for real users | Branding, a marketing website, investor materials |
| Development | Frontend, backend, basic permissions, the integrations without which the flow does not work | Nice-to-have integrations, a full admin panel, automations that serve future growth |
| Testing and release | Testing of the core flow, a production environment, store submission when the deliverable is an app | Comprehensive test automation, load testing, compliance and security beyond the baseline |
| Measurement | Wiring the metrics defined in the scope document, so the question the MVP was built for can be answered | Analyzing the results and deciding what next — your decision, with the data in hand |
| After handover | Handoff and documentation | Maintenance, ongoing development and day-to-day operations — on the ongoing-team track or under a maintenance agreement |
Acceptance conditions — how we know we are done
And after the first version?
The decision is made on the feedback and usage that were measured — not on a feeling that one more feature is missing, and not as a promise of funding or adoption. Three continuations are possible: the next version as another defined project; moving to an ongoing team when the pace of change justifies standing capacity; or stopping with an orderly handover. Scope and budget for the continuation depend on integrations, risk and the infrastructure required — and are set again at each stage.
03 / What's in the team
What's in the team
A full team — not just developers. A CTO who leads, a designer who understands product, DevOps that handles infrastructure, and QA that tests it all. We plug in as one unit.
04 / Why not in-house
Why not build the team yourself?
Five reasons. Any one is enough on its own. Together — there's no debate.
| The problem | What it looks like | With Onezero Labs |
|---|---|---|
| Cost & time of hiring | Hiring a senior engineer takes 2-3 months. Hiring a full team — half a year. Plus another 3-6 months until they ship. | With us — one week. |
| Salaries | A senior engineer in a major US market costs a six-figure salary plus benefits, equity and recruiting fees. A team of four is a seven-figure annual commitment before anything ships. | With us — one monthly number that covers the whole team, no benefits or management overhead. |
| The team leaves | In an early-stage startup, turnover is high. An engineer leaving after 6 months — you go backwards. | Us — we're not going anywhere. |
| Uneven workload | Most startups don't need 5 engineers all the time. Sometimes 2, sometimes 6. | With us — flexible. We scale up and down with you. |
| Experience | Seven years of working alongside startups and businesses. We've seen many of the mistakes up close. | You — don't need to make them again. |
05 / How it works
How it works in practice
- 01
Week 1
Kickoff & discovery
Meetings with the founders. Understanding the product, the audience, the plan. An initial technical roadmap.
- 02
Week 2
Infrastructure setup
Repository, CI/CD, environments (Dev/Staging/Prod), comms tools (Slack, Linear/Jira), process docs.
- 03
Weeks 3-4
First sprint
We start building. Every sprint (two weeks) — a live build you can see.
- 04
From day one
Constant communication
Dedicated Slack channel, weekly meetings, monthly reports. You always know what's happening.
- 05
Throughout
Right-sizing
The team grows and shrinks with the need. You pay for what you need, no more.
What happens before week 1? You arrive with one hypothesis, one core flow and a now/later table — not a feature list. How to build that:
How to define an MVP you can test with users06 / Track B · An ongoing development team
An external development team to keep building the product
When there is a live product and a priority list that never ends, the question is not 'how many developers' but who is responsible for what, how priorities are set, and what happens at the start and at the end. This is the model.
When does an ongoing team fit?
Which roles and how much capacity?
Capacity is described as roles and allocation type — not as a vague number of developers. The actual allocation is set in the agreement according to the workload, and changes with it.
| Role | Allocation type | What it means in practice |
|---|---|---|
| Tech Lead | Standing, part-time | One point of contact. Owns architecture, code review and the two-week planning. The same person throughout the engagement |
| Full-stack engineers | Dedicated, sized to the workload | The main allocation. Grows or shrinks with the work list, with the notice period set in the agreement |
| UI/UX designer | As needed | Joins when there are new screens or an experience change; not on the team when there is no design work |
| DevOps / Cloud | Shared | Infrastructure, deployments, monitoring and backups. Shared across clients, with defined responsibility for your system |
| QA | Per sprint | Testing of what each sprint delivers, and regression on the critical flows before every deployment |
| Product management | Optional | Only if nobody fills the role on your side. Even then — the business decisions are yours |
Who is responsible for what?
| Area | You | Us |
|---|---|---|
| Product and prioritization | Decide what matters and why. Approve the sprint plan | Propose an order by effort and risk, flag dependencies, say when something is not worth it |
| Scope | Define the business need and the acceptance condition for each item | Break it into deliverable items, estimate, warn about overrun before it happens |
| Development | Available for questions and decisions during the sprint | Code, code review, documentation, unit tests. Code quality is our responsibility |
| QA and acceptance | Test against the acceptance conditions you defined. Approve release | Internal testing and regression before anything reaches you for acceptance |
| Production and operations | Own the accounts, the domain and the data. Decide on deployment windows | Monitoring, deployments, backups and incident handling — within the scope and service hours set in the agreement |
| Budget | Set the monthly capacity and the notice period for changing it | Report capacity use every sprint; no overrun without approval |
How is work planned and reported?
How does it start, and how does it end?
When is a defined project the better choice?
When the scope is known, there is a single target date and there is no live product to maintain yet, a defined project with written acceptance conditions gives both sides more certainty. The first version of a new product is almost always such a project; the MVP track above describes it.
07 / Beyond the code
What you get beyond the code
We don't just write lines. We're partners — with perspective, network, and judgment.
08 / Technology
Our stack
A full stack — frontend, backend, mobile, cloud, database, auth, payments, and AI. All modern — not because it's trendy, but because it ships faster and scales better.
Frontend
- React
- Next.js
- Vue
- Remix
Backend
- Node.js
- Python
- Go
Mobile
- React Native
- Flutter
- Native
Cloud
- AWS
- GCP
- Vercel
Database
- PostgreSQL
- MongoDB
- Redis
Auth
- Auth0
- Clerk
- Supabase
Payments
- Stripe
- PayPlus
AI
- OpenAI
- Claude
- MCP Servers
09 / Why us
Why us
FAQ
Frequently asked questions
There is no honest flat price for a full team: the budget follows scope. The drivers are which roles you need and at what capacity (frontend, backend, mobile, design, DevOps, product), whether you need a fractional CTO, and how long the engagement runs. We scope the work first, then give a fixed, itemized quote — what is included, what is excluded and what would change the number. You get one monthly number that covers the whole team — all-in, no surprises.
Think about the true cost of building in-house: salaries + benefits + office + equipment + manager + onboarding period. We're about half. Without the risk of a bad hire.
A freelancer is one person. We're a full team. A freelancer leaves after 3 months. We don't. A freelancer doesn't do architecture, DevOps, and design together. We do — all in-house.
A typical dev shop takes a project, delivers, and leaves. We're a team. We stay. We grow with you. New feature or small bug — the same person handles it.
Default — remote (Zoom, Slack). If you want in-person meetings — at our office or yours, as needed.
The opposite. We help you hire them, run a structured handoff, and then scale our involvement down — or stay on as on-demand support.
Yes. Same team, web and mobile, in sync.
Yours. All of it. The code, the repository, the accounts, the GitHub. We help from the outside.
Minimum 3 months at the start — so there's a real outcome. After that — month-to-month. You can pause, stop, scale up. Flexible.
We have pre-seed tracks — a fixed-price MVP package or a small team of 1-2 developers. Let's talk and figure it out.
Not usually. But for special projects, we can discuss a hybrid model — part cash, part equity.
Standard. We sign an NDA upfront on every project. Your idea stays yours.
Depends — let's talk. We appreciate referrals.
To the CTO/Tech Lead leading your team. One point of contact. They keep you updated on all the technical details, clearly.
Happy to. We document, explain, and support the handoff. So your in-house team has a solid base to continue from.
An MVP project is a defined deliverable: a scope document with a hypothesis, a core flow and a now/later table, a working version handed over to you with code, access and documentation — and acceptance conditions written in advance. An ongoing team is capacity: roles and allocation set in the agreement, two-week prioritization, and continuous responsibility for development, QA and production. You can start with a project and move to a team — or the other way round — and each track has its own section on this page.
A handover package: the repository in your name, cloud accounts, domain and store accounts in your ownership, operating and configuration documentation, a list of open tasks and known risks, and an orderly handoff to the team that continues — in-house or external. It is the same standard we require when we take over a product from a previous vendor.
Keep reading
- Case studyCase study: OneAI — five years of AI, acquired by monday.comA long-term technology partnership: from a language AI and API platform, through chat agents, to a voice AI system — and the 2026 acquisition by monday.com.
- GuideHow a development estimate is builtWhat an estimate is made of and how to read a range before you commit a runway to it.
- Case studyCase study: Tory — on-demand mobile servicesWe built a client app, a driver app, and a real-time dispatch backend from scratch. Architecture, matching engine, and an order flow measured in seconds.
Let's talk
Got a startup idea?
A 30-minute intro call. No strings attached. We'll tell you if we're a fit, what team size to start with, and how long it'll take.
Straight. To the point. On time.