Custom software · Athens, Greece

We build software that scales.

End-to-end product engineering for businesses that need performance, reliability and craft — from the first line of code to production, and beyond.

0+
.NET — latest, always
0 runtimes
Web · iOS · Android, one team
0%
Observability coverage

Full-stack, full-stop.

Architecture, design, build, deploy, observe. One team owns the whole line — no hand-offs, no finger-pointing.

⚡

Web Applications

High-performance web apps with Next.js, React and .NET backends. Server-rendered, SEO-ready, measured in milliseconds.

📱

Mobile Apps

Native iOS & Android from a shared React Native / Expo codebase — push notifications, deep links, offline-first where it matters.

🧠

Backend & APIs

Cloud-native .NET with Clean Architecture, CQRS, gRPC and real-time SignalR — built to grow from one shop to thousands.

🤖

AI Integration

LLM-powered features that ship: intelligent imports, copilots, automation — with cost controls and guardrails baked in.

A straight line to production.

🎯

Discover & architect

We map the domain, pick boring-where-possible technology, and design for the scale you'll actually hit.

🛠️

Build & test

Unit, integration and E2E suites from day one — Testcontainers, Playwright, NBomber. Quality is not a phase.

🚀

Deploy & automate

CI/CD pipelines to cloud platforms with zero-downtime releases, staged rollouts and instant rollback.

📡

Observe & evolve

OpenTelemetry traces, metrics and logs on every request. We see problems before your users do.

Software First,
always.

Great software is built through craft, not shortcuts. We work with businesses to deliver solutions that are maintainable, observable, and built to last.

We stay on the industry's cutting edge — .NET 10, React 19, cloud-native patterns, comprehensive testing and full observability stacks.

🏆 Professionalism
✅ Quality-first
🔁 Agile delivery
💡 Innovation
☁️ Cloud native
Current stack
.NET 10 · Next.js 16 · Expo
Cutting-edge, production-proven
Testing philosophy
Unit · Integration · E2E · Load
Testcontainers, Playwright, NBomber
Observability
Full-stack visibility
OTel · Grafana · Prometheus · Loki · Jaeger

Built, shipped and run by us.

Not just client work — we design, build and operate our own products, end to end. Here are three of them.

ΠΑΦΑΜΕ
Case study One platform. Two storefronts. Three runtimes. Web & native mobile ordering, live shop dashboards, real-time order tracking, AI-assisted menus, invoicing — at 4% commission, fair by design.
.NET 10 Next.js 16 Expo / React Native PostgreSQL OpenSearch SignalR
Explore the platform →
QuietFiles
Our product File conversion that never phones home. HEIC → JPG and PDF → JPG converters running 100% in the browser — WASM decoders, Web Workers, zero uploads. No accounts, no cookies, free at quietfiles.com.
Astro TypeScript WebAssembly Web Workers Cloudflare Pages
Explore QuietFiles →
Retro Palette
Our product Photos, redrawn on hardware that no longer exists. An iOS and Android app that quantizes any picture to an authentic console palette — Game Boy, NES, C64 and more — with period-correct dithering. Entirely on-device: no upload, no account, no tracking.
.NET MAUI C# SkiaSharp iOS & Android Offline-first
Explore Retro Palette →

We ship the tools we depend on.

When MediatR went commercial, we pulled our own mediator out of a production system, cleaned it up and published it under Apache 2.0. Free for everyone, including you.

SoftwareFirst.Switchboardv1.2.1
A lightweight, MediatR-compatible mediator for .NET
  • Drop-in replacement. Swap the package, change using MediatR; to using Switchboard; and AddMediatR to AddSwitchboard — handlers, behaviors and call sites compile unchanged.
  • Under 500 lines of code, one dependency. Just Microsoft.Extensions.DependencyInjection.Abstractions. Nothing to audit that you can't read in an afternoon.
  • Targets net8.0, net9.0 and net10.0. Move off MediatR without moving frameworks first.
  • Predictable semantics. Notification handlers run sequentially in registration order, so scoped state like an EF Core DbContext stays safe. Cancellation tokens never get dropped.
  • New in 1.2. Startup validation, built-in OpenTelemetry and a scope per dispatch for Blazor Server — all opt-in, no extra dependency.
  • Battle-tested. Extracted from the platform behind ΠΑΦΑΜΕ, not written for a blog post.
dotnet add package SoftwareFirst.Switchboard
Apache-2.0 net8.0 net9.0 net10.0 CQRS Pipeline behaviors Notifications OpenTelemetry
Program.cs
using Switchboard;

// One registration call — assembly scanning included.
builder.Services.AddSwitchboard(cfg => cfg
    .RegisterServicesFromAssemblyContaining<GetOrderHandler>()
    .AddOpenBehavior(typeof(LoggingBehaviour<,>)));

public sealed record GetOrder(int Id) : IRequest<OrderDto>;

public sealed class GetOrderHandler
    : IRequestHandler<GetOrder, OrderDto>
{
    public Task<OrderDto> Handle(
        GetOrder request, CancellationToken ct) => /* ... */;
}

// Inject ISender anywhere and send.
await sender.Send(new GetOrder(42), ct);

Have something worth building?

Tell us what you're trying to ship. We'll tell you exactly how we'd build it — architecture, timeline, cost.

info@softwarefirst.gr