What we do

Full-Stack Development

We design and build complete web applications end to end, from database schema to the last pixel. Because one team owns the full stack, your product ships as a single coherent, scalable system instead of a patchwork of handoffs.

Layered architecture diagram: an interface plane above a logic and data plane above an infrastructure grid, illustrating end-to-end full-stack web application development.

01What we do

Web application development services, end to end

One senior team owns database schema through to the last pixel, so you get a coherent system instead of a patchwork of handoffs. Whether you need a custom web application built from scratch or an enterprise platform modernised, the engagement is scoped and priced before it starts.

Frontend

Responsive, interactive UIs with React, Next.js and TypeScript. Performance and UX first.

Backend

Robust REST and GraphQL APIs with Node, Express and Python. Microservices and scale.

02What we do

Who we build for

Teams outgrowing a spreadsheet

The process works but it is held together by one workbook, one person and a lot of copy-paste. We turn it into software with rules, permissions and an audit trail.

Founders with a validated idea

You do not need a technical co-founder to ship. A senior team translates the business goal into production software and hands you the code.

Companies replacing legacy systems

An old platform nobody wants to touch, still running something critical. We modernise it without stopping the business that depends on it.

03What we do

What every engagement includes

  • A fixed price for the whole build, agreed after scoping and before any code
  • Weekly demos, so progress is something you see rather than something you are told
  • Senior engineers who own the outcome from first call to production
  • Applications built to WCAG 2.1 AA accessibility standards
  • Bilingual or multilingual delivery on request
  • Full source code, assets and IP transferred to you on final payment
NEXT.JSREACTREACT NATIVETYPESCRIPTTAILWINDNODE.JSPYTHONGODJANGOFASTAPIGRAPHQLREST APISPOSTGRESQLSUPABASEPRISMAREDISKAFKALLMS & RAGPINECONECLAUDEAWSGCPAZUREDOCKERKUBERNETESTERRAFORMCI/CDSTRIPE

04What we do

The stack we use for this

Next.jsReactTypeScriptNode.jsPythonGraphQLPostgreSQLTailwind

05Pricing

One flat rate. No surprises.

Every engagement is scoped up front at a fixed price. No hourly billing, no scope-creep invoices. You know the number before we start.

06What we do

From first call to production

A clear, four-step path with a fixed price agreed before we start. No surprises, no open-ended invoices.

  1. 01

    Discover

    Scope, goals, constraints. A fixed plan and price.

  2. 02

    Design

    Architecture and UX before production code.

  3. 03

    Build

    Senior engineers, weekly demos, no surprises.

  4. 04

    Ship and Scale

    Launch, monitor, and grow with you.

07Client work

What clients say about working with us

5.0 average rating

  • Canada
    Maurizio and his team were great to deal with! Answered all questions and explained everything in detail and always had recommendations to help keep the progress of the build on track.

    Full-stack web application · 2 months

  • SwedenReturning
    Awesome job, we are very pleased with the result…

    Full-stack web application · 7 weeks

  • Canada
    We hired L3 to build our booking and invoicing application, and the experience exceeded expectations from start to finish. Their customer service and attention to detail were outstanding, and they were quick to resolve any issues that came up along the way. Everything works flawlessly now. Highly recommend them to anyone looking for a reliable development partner.

    Booking and invoicing platform · 7 months

  • United Kingdom
    It was better than I could have imagined. I would highly recommend them. It was one of the best working experiences I have had.

    Full-stack web application · 2 months

  • United States
    The experience working with Level 3 was top notch. Excellent communication during the entire project. I highly recommend this team.

    Full-stack web application · 3 weeks

  • United Kingdom
    We spoke with a number of providers before selecting LevelThree Co, and from the outset Maurizio and his team stood out for how quickly they understood our requirements. They grasped the scope and intent of the project almost immediately and proposed a solution that was well thought through, technically sound, and fairly priced.

    Full-stack web application · 4 weeks

  • United States
    The attention to detail and the care they put into their work is rare when you work with someone you don't have a previous relationship with, and the LevelThree team are exceptional. Maurizio gave his personal time, attention and care to my project, including once calling me at 4am his time because he was working so hard on the project.

    Full-stack web application · 4 weeks

  • AustraliaReturning
    Can't speak highly enough of Maurizio, his team, and the work that was delivered. This is my second and largest order with them and somehow they managed to go above and beyond the already impeccable standard they've previously set.

    Full-stack web application · 2 weeks

  • Saudi Arabia
    This is an exceptional service and a wonderful journey. All my expectations were met and above…

    Full-stack web application · 8 weeks

  • United StatesReturning
    This was by far the experience it needed to be. I would work with Level 3 for every project I have now and in the future. We walked through time together to create something amazing!

    Full-stack web application · 4 months

  • Serbia
    Went above and beyond to complete the work! Understood the assignment instantly, overdelivered on a very short deadline and even added some awesome features that were outside of the scope of work.

    Full-stack web application · 4 days

  • United States
    Absolutely outstanding experience. The work was delivered quickly and with impressive attention to detail. Communication was clear throughout the entire project, and every request was handled with professionalism and skill. The final result exceeded my expectations and made the whole process effortless on my end.

    Full-stack web application · 3 weeks

  • United States
    The team at Level Three has exceeded my expectations! They took the time to understand my specific needs and preferences, and designed an incredibly gorgeous website for my real estate firm. They went the extra mile to ensure I had a seamless and positive experience.

    Website design and build · 2 weeks

  • United States
    Maurizio went above and beyond, adding extra features that made the app work and look even better than I expected. Because of the complex math behind my original calculator, we had to make a few revisions to get everything translating correctly from Excel to JavaScript. Maurizio and his team worked with me patiently to fine-tune the calculations until it was perfect.

    Pricing calculator web application · 3 weeks

08What we do

Often built alongside

Headquartered in Toronto, working with clients across North America, Europe and Asia. Software development in Toronto

10What we do

Common questions

How much does custom software development cost?

We work on a flat rate, not by the hour. After a short scoping call we give you one fixed price for the entire build, with clear deliverables and milestones, so you know the full cost before we write a line of code. No hourly meters, no surprise overages. The figure depends on scope, and scoping is free.

How long does it take to build an MVP or custom application?

It depends on scope, but we commit to a concrete timeline with milestones in the proposal before you sign. Focused MVPs typically land in weeks rather than months; larger platforms run longer. You always know what ships, and when.

Who owns the code and intellectual property?

You do. On final payment, all source code, assets, and IP transfer to you with a clean handover and documentation. No lock-in.

Start with a free discovery call. Transparent, flat-rate, delivered.

Ready to build something great?