Web apps and SaaS platforms that keep up with you

We build web applications and SaaS platforms with React, Next.js and Node.js - from the first release to scaling a product that already has users, with AI features where they add value.

How it works05 steps
  1. ProductUsers, model, next milestone
  2. ArchitectureFits the team that maintains it
  3. BuildWorking software every sprint
  4. LaunchFast, server-rendered, indexed
  5. OperateMonitoring and improvements
ReactNext.jsNode.js

Web Development

What we build

  • 01

    SaaS platforms & portals

    Multi-tenant products with auth, billing and integrations.

  • 02

    Next.js sites & apps

    Server-rendered, fast and visible to search engines and AI crawlers.

  • 03

    APIs & backends

    Node.js services and data models built to grow with the product.

  • 04

    Takeovers & performance

    Stabilising and speeding up products that already have users.

  • 05

    Dedicated teams

    Senior engineers inside your roadmap, for as long as you need them.

Results from our case studies

55%

faster API responses

StaffSquared case study →

65M+

profile visitors

ReviewHero case study →

100%

higher net promoter score

StaffSquared case study →

Selected work

Built for clients, running today

“Lexis Solutions was able to quickly understand our project scope and help us define the timelines and deliverables to the project. They were flexible and professional. The StaffSquared.com platform has grown in terms of features, functionality, partnership integrations, and mobile app integration. We are now able to quickly respond to bugs, updates, and centralization of services, increasing our ability to scale for the marketplace.”
Bob NeveuCompany Director & Investor, Staff Squared
All case studies

How we work

From first workflow to production

  1. 01

    Understand the product

    Users, business model, the milestone that matters.

  2. 02

    Plan the architecture

    A stack that fits the team that will maintain it.

  3. 03

    Ship in short iterations

    Working software every sprint, reviewed with you.

  4. 04

    Operate and improve

    Monitoring, performance and features after launch.

Illustrative product

Small releases. Real progress.

Your web appv1.2

Workspace

Projects
  • Client portal

    AL
  • Website refresh

    JM
  • Member area

    SK
Weekly activityNew

Let real usage guide what’s next.

Add insights. Learn from your users. Keep shipping.

Choose a release. See the product evolve.

Is it a fit?

Who we build this for

A good fit if you have

  • A new web product that needs a senior team from day one
  • A platform that has become slow or hard to change
  • A product team that needs more engineering capacity

Probably not for

  • Template websites with no custom functionality
  • The lowest hourly rate above everything else

Technologies we use

FAQ

Questions we often hear

Something else on your mind? Ask the engineers who would build it.

Ask us directly

Next step

Let’s talk about your project

Tell us what you are working on, and the engineers who would build it will get back to you.

Lexis Solutions builds AI-native software from Sofia, Bulgaria – agentic systems, intelligent data pipelines, and the interfaces that bring them to life.

Claude Partner Network Select Services Partner
ISO 9001:2015 Certified Software Company
Lexis Solutions Ltd featured on DesignRush

Contact

Office / Sofia