We build software for people, not stacks.

SeioraDEV

Web, mobile, e-commerce, and CMS systems. We write code that holds up the first month in production and the third year in maintenance—without changing owners three times along the way.

What we build

Product types where the difference between "it works" and "it works for years" actually shows.

B2B SaaS products

Multi-tenant apps with complex roles, billing, and audit logs. We build systems founders use to win over investors—and that don't need to be rewritten from scratch six months later.

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Internal tools and admin panels

Dashboards for sales, operations, and finance. Often they replace five Excel sheets and three Slack channels. Less glamorous than public-facing sites—but people use them eight hours a day, so they have to work right.

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B2B and complex e-commerce

Stores with per-customer pricing, multi-warehouse inventory, or ERP integrations. This is where Shopware or custom usually beats Shopify.

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Mobile-first products

Apps where mobile isn't secondary—it's the primary channel. Field workers, couriers, retail staff. Often offline-first, with sync when the network comes back.

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Legacy refactors and migrations

PHP4 that refuses to die. A 200,000-line monolith. A system nobody fully understands anymore. We come in, read the code, plan migration in phases—because the business can't stop.

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AI-augmented products

An existing product where we add an AI layer—semantic search, customer support assistants, document classification, automation of repetitive tasks. AI doesn't ship separately—it ships as part of the software we're already building.

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What we develop

Technical areas we cover in-house, without subcontractors.

Web

Custom Web Applications

Full-stack development—from interaction layer to database. We write code that holds up both the first month in production and the third year in maintenance.

Frontend Backend Reliability SaaS
Mobile

Mobile application development

Native iOS and Android when performance matters, React Native when speed-to-market matters. We choose per project and explain why.

iOS Android Cross-platform Performance
Commerce

E-Commerce Solutions

Stores where we optimize what most teams don't touch—checkout. That's where you lose money, not on the homepage.

Checkout Payments Conversion Growth
API

API Development

REST, GraphQL, webhooks. We build new APIs and clean up legacy ones that can't keep up with the apps using them.

REST GraphQL Integrations Microservices
Technical standards we hold

A project isn't done when it works on screen. Here are four things that have to pass before we call it ready.

  1. Test coverage ≥ 70% on critical flows. We don't launch without it.
  2. Code review on every PR. No one pushes to main solo, not even at 11 PM.
  3. Lighthouse ≥ 90 on performance. Slow isn't "done."
  4. Documentation in the repo. A README the next developer can actually read.

Got a spec? Got just an idea? Got a legacy system that's leaking?

All three scenarios are welcome. 30 minutes on a call—you get an honest take on whether and how, plus a ballpark budget if it makes sense to continue.