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Your EU engineering hub: senior engineers in Europe, 0% EOR fees, full ownership transfer

Serious Software builds, runs and transfers senior engineering teams in Europe for EU, UK and US companies. We handle entity setup, contracts, payroll, tax and compliance. You get the engineers, and the team becomes yours when you're ready.

Get your BOT plan in 2 working days How Build-Operate-Transfer (BOT) works AI & Intelligent Solutions Development
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Cost Savings Calculator

Save time, money, and resources with Serious Software. See how our savings calculator can simplify your operations, cut costs, and boost efficiency. See your potential savings clearly and make smarter decisions effortlessly.

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Cost per hire

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Serious Software

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Recruitment agencies

With Serious Software you can save:

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More than 30+ engineers?

Please contact us to arrange a call with the Serious Software management team to discuss collaboration opportunities and projected costs.

we supply excellence

Engagement models

HOT Service

AI Dev Solutions

  • Custom AI and machine learning
  • AI‑enabled data analytics and insights
  • Integration of AI capabilities
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Developer/Team

  • Developer/Team
  • Short-term Project
  • Long-Term Development
  • Bug Fixes & Tech/Customer Support
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NEW Build, Operate, Transfer (BOT)

Smarter Scaling for
Software Teams

For businesses looking to expand their software development capabilities without the limitations of traditional outsourcing, the BOT model offers a structured, cost-effective, and sustainable pathway to building, operating, and ultimately owning a high-performance engineering team. This approach ensures scalability, efficiency, and full control over technology, talent, and processes.

  • Phase 1 - Build

    A development hub is created, hiring top talent and setting up legal, financial, and operational frameworks aligned with business objectives.

  • Phase 2 - Operate

    The team operates under the partner’s management, ensuring smooth software development, testing, and deployment while maintaining quality and efficiency. Businesses gain visibility and reduce risks.

  • Phase 3 - Transfer

    After a set period, full ownership of the team, infrastructure, and operations transitions to the business, ensuring smooth autonomy.

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About Serious Software

Built for Long-Term Delivery, Not Short-Term Outsourcing

Serious Software is a UK-based engineering partner helping VC-backed and scaling technology companies across the US and Europe accelerate critical growth and delivery by providing senior engineers, reducing execution risk, and delivering results when momentum matters most—without recruiting fees or transactional engagements.

How We Operate

At Serious Software, we believe that trust is built through consistency, not promises.

  • UK-based leadership and governance
  • European engineering hub with stable, long-term teams
  • Clear communication and documentation
  • Security, compliance, and delivery discipline
  • Commercial transparency with no recruiting fees

Our Commitment

Serious Software exists to support durable growth through reliable engineering execution. We measure success by:

  • Sustained delivery, not short-term output
  • Stable teams, not headcount growth
  • Reduced operational risk, not speed alone
  • Partnerships that last beyond individual projects
  • Client trust, not transactional engagement
About Us
Why choose us?

Serious Software can offer...
overseas R&D

At Serious Software, we strive to ensure that you receive modern and responsive outsourcing and IT services.

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modern & responsive tech

Technologies

Serious Software specializes in scalable, high-end web and mobile applications (iOS, Android) alongside AI and data solutions. Our full-stack expertise covers C/C++, C#, .NET, Java, JavaScript, PHP, Python, and Ruby on Rails, as well as machine learning, analytics, and intelligent automation across operating systems like UNIX.

Technologies Case Studies
developer teams & partners

Our Developer Teams & Partners

With our Head Office based in the United Kingdom we have many developer teams and partners working throughout Europe.