Systems for the 0.1%

Engineering the future of enterprise software.

Unisam is a custom software development company building high-performance web, mobile and AI platforms for global brands seeking radical digital transformation.

Trusted by enterprise teams worldwide

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// Why Unisam

A custom software development company built like a research lab.

We treat software the way aerospace treats hardware: with rigour, instrumentation and review. Our engineers ship to production, not slide decks. As one of the best software development companies in Europe, we partner with founders, CTOs and product leaders to turn ambiguous business problems into measurable digital outcomes.

12+
Years engineering
150+
Senior engineers
98%
Client retention
24/7
Global delivery
Case Study · FinTech Alpha

Revolutionising high-frequency trading infrastructure.

We rebuilt a 14-year-old Java monolith into a Rust + Kafka pipeline that reduced p99 latency from 38ms to 1.2ms.

// Stack

Engineered with precision.

2026 reference stack
Frontend
Next.js, React, TanStack, Vue
Backend
Node.js, NestJS, Go, Rust
Mobile
Swift, Kotlin, React Native
Data
PostgreSQL, Redis, Kafka, ClickHouse
Cloud
AWS, GCP, Vercel, Cloudflare
AI/ML
OpenAI, Anthropic, LangGraph, vLLM
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// Voices

What clients say.

Unisam shipped what three previous vendors couldn't. Their engineers think like product owners.
Helena Vogt
CTO, Northwind Mobility
The closest thing to an in-house team we've ever hired. Genuinely the best software development company we've worked with.
Marcus Lee
VP Engineering, Vanta-IO

// Insights

Engineering field notes.

Frequently asked questions

What makes Unisam the best software development company for enterprise work?

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We combine senior-only engineering teams, transparent agile delivery, and deep domain experience across fintech, healthcare and logistics. Every engagement is led by a principal engineer accountable for outcomes — not a project manager translating between you and an offshore pool.

Do you offer custom software development services in Europe and the USA?

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Yes. Unisam operates as a custom software development company across Europe, the United Kingdom and the United States, with delivery hubs aligned to your time zone for synchronous standups and pair programming.

How quickly can a web and mobile app development company like Unisam start?

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Discovery typically begins within two weeks of contract signature. A complete cross-functional pod — product, design, mobile, backend, QA — is mobilised in four to six weeks.

What technologies does your custom software development service use?

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Our default stack is TypeScript end-to-end (Next.js, React, Node, NestJS), PostgreSQL, Redis, AWS/Vercel, with native Swift and Kotlin for mobile. We extend into Go, Rust and Python where the workload demands it.

Do you transfer IP and source code on completion?

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Always. Full intellectual-property and repository ownership transfers to you milestone-by-milestone. There is no vendor lock-in, no proprietary frameworks, and no hidden licensing.

Ready to engineer what's next?

Book a free consultation with our senior engineering team. No sales theatre — just a frank technical conversation.