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The only IT team you will ever need

The only Software Developer team you will ever need.

Software, systems and cloud for companies that want technology that works, and keeps working.

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An app on a laptop and an iPhone that builds itself, then adapts to your brand colors and switches to dark mode

Our method

Align on goals

We align on goals, users, and constraints with clarity.

Our method

Map the system

We map journeys, data, and the system backbone.

Our method

Ship in milestones

We ship in milestones with visibility and feedback.

Our method

Monitor and evolve

We monitor, optimize, and evolve long-term.

Our method

An app for every sector

Management, booking, training, events, e-commerce: the sector changes, the method does not.

  • Management
  • Booking
  • Training
  • Events
  • E-commerce

Illustration: an app that adapts to your brand.

Brands that trust SEM Devs

Wall of Fame

Everything you need, with one method

Five areas, one team: from the application to the network it runs on and the security around it. Every area follows the same four steps.

Custom web applications

Software built around your process

Web platforms designed for how you actually work: bookings, customers, training, logistics. We start from your workflow, not from a template.

  • Management systems and CRMs
  • Booking platforms
  • Portals and e-commerce
  • Dashboards and internal tools
  • Integration with existing systems
  • Maintenance and evolution

Technology and partners

  • Next.js
  • React
  • TypeScript
  • Node.js
  • Laravel
  • PHP
  • Prisma
  • PostgreSQL
  • MySQL
Discover software development

Our method

  1. Align on goals

    We understand the process, who uses it and what has to change.

  2. Map the system

    We design flows, data and architecture before writing code.

  3. Ship in milestones

    Working versions at every milestone, with continuous feedback.

  4. Monitor and evolve

    We fix, update and grow the application over time.

Cloud

Infrastructure that scales and stays affordable

We design, migrate and run cloud and server environments: deployment, backups, monitoring and costs under control.

  • Migration and hosting
  • Deployment and CI/CD
  • Backups and disaster recovery
  • Monitoring and alerts
  • Cost control
  • Test and production environments

Technology and partners

  • DigitalOcean
  • AWS
  • Hetzner Cloud
  • Vercel
  • Docker
  • Kubernetes
  • Nginx
  • GitHub Actions
  • Microsoft
Discover system and cloud

Our method

  1. Align on goals

    We define workloads, budget and availability requirements.

  2. Map the system

    We design environments, access and the backup strategy.

  3. Ship in milestones

    We migrate and go live in phases, without needless downtime.

  4. Monitor and evolve

    Monitoring, alerts and cost optimization over time.

Systems integration

Making your software talk to each other

We connect management systems, e-commerce, ERP and external services with reliable APIs and connectors, so data syncs without manual work.

  • APIs and connectors
  • ERP and e-commerce sync
  • Workflow automation
  • Data migration
  • External service connections
  • Exception handling

Technology and partners

  • WooCommerce
  • WordPress
  • WPGraphQL
  • Stripe
  • PayPal
  • Satispay
  • Klarna
  • Twilio
  • SendGrid
See how we integrate

Our method

  1. Align on goals

    We learn which systems must talk and which data moves.

  2. Map the system

    We document flows, formats and failure points.

  3. Ship in milestones

    Connectors and APIs tested and switched on in phases.

  4. Monitor and evolve

    We watch the syncs and handle exceptions.

Network

Secure, stable, documented networks

We design and maintain business networks: LAN and Wi-Fi, VPN, firewalls and segmentation, up to temporary networks for large events.

  • LAN and Wi-Fi
  • VPN and remote access
  • Firewalls and segmentation
  • Event networks
  • Cabling and equipment
  • Network documentation

Technology and partners

  • Ubiquiti UniFi
  • WatchGuard
  • Fortinet
  • OPNsense
  • Tailscale
  • Zyxel
  • Proxmox VE
  • Synology
  • QNAP
Discover system and cloud

Our method

  1. Align on goals

    We survey sites, users, devices and weak points.

  2. Map the system

    We design topology, VPN and segmentation.

  3. Ship in milestones

    We install and configure, with full documentation.

  4. Monitor and evolve

    We monitor the network and act before it fails.

Cyber security

Defenses, access and compliance

System hardening, access management, endpoint protection, backups and fast response when something goes wrong.

  • Hardening and access
  • Endpoint protection
  • Backups and recovery
  • Incident response
  • Security reviews
  • Compliance support

Technology and partners

  • SentinelOne
  • NinjaOne
  • WatchGuard
  • Fortinet
  • OPNsense
  • Tailscale
  • Trivy
  • Sentry
  • GDPR
Discover security

Our method

  1. Align on goals

    We assess risks, assets and compliance duties.

  2. Map the system

    We define access, protections and recovery plans.

  3. Ship in milestones

    We apply hardening, endpoint protection and backups.

  4. Monitor and evolve

    Continuous monitoring and fast incident response.

10+
Years of experience
80+
Projects delivered
7
Sectors

Why SEM Devs

Expertise, care and transparency in every project, from analysis to release.

Discover our Tech Stack

  • Study and Analysis

    We invest time in observing, understanding, and applying best practices before we write a line.

  • Quality Code

    Designed for the future: clear, efficient, written to last.

  • Experience and Precision

    Care and attention are the cornerstones of how we work, and they show in the results.

  • High-Level Security

    Cybersecurity is our primary commitment. We protect your data with seriousness and expertise.

  • Fully Adaptable

    We tailor our solutions with flexibility and precision to your specific needs.

  • Open-Source

    Free and open-source software is our mission: transparent, accessible, cost-effective.

Partners and certifications

  • SentinelOne
  • NinjaOne
  • Microsoft
  • DigitalOcean
  • Artera
  • SSL/TLS
  • AES-256
  • GDPR
  • EAA

From our blog

Recent articles on development, infrastructure and security.

View all articles

24 Aug 2026, 2 min read

Cyber Resilience Act: under three weeks to 11 September

In July we explained why the CRA's first binding deadline is 11 September 2026, not 2027. Now time is up: from 11 September the 24 and 72-hour clocks for exploited vulnerabilities start. The final checklist, no theory.

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