First Line Software Family

First Line Software Family We are an international team of tech enthusiasts with over 400 employees. Join Our Team! We create incredible projects all over the world. Are you in?

First Line Software is an international team of programming enthusiasts with over 400 employees. Our offices are located in the Czech Republic, Poland, the USA, Germany, Montenegro, Australia, and the Netherlands. We are a successful international company, which combines the attractive and routine-free atmosphere of a start-up.

This summer, we launched FLS x Claude™ Architect Camp — a two-month learning journey designed to help every FLS engineer...
08/27/2026

This summer, we launched FLS x Claude™ Architect Camp — a two-month learning journey designed to help every FLS engineer build practical AI skills, prepare for the Claude Architect Certification, and apply Claude by Anthropic confidently in real client projects 🚀

But learning hits differently when it comes from someone who’s already been through it.

Our colleague Petar Markovic, Frontend Developer & Claude Certified Architect, shares his top 5 certification insights — from where to study and how to practice to the mindset that helps when exam answers feel almost equally right.

Swipe through for Petar’s tips 👉

🏁 Our team is at Ai4 - Artificial Intelligence Conferences , where AI leaders and innovators come together to explore ho...
08/13/2026

🏁 Our team is at Ai4 - Artificial Intelligence Conferences , where AI leaders and innovators come together to explore how to turn AI ambition into real-world impact.

And we brought our pit stop idea with us. In Formula 1, a pit stop isn’t a breakdown — it’s where a skilled team quickly identifies what’s slowing the car down, fine-tunes it, and gets it back in the race.

That’s how we approach AI transformation: find the friction, tune what matters, and accelerate forward. From scaling AI to upskilling teams, we help businesses make AI actually work.

07/08/2026

Every company working in AI right now sounds the same. Same promises, same buzzwords, same five claims.

So we skipped the script and answered the questions people actually ask us.

💬 A few questions we hear most:
— What does an «AI-Native» engineering company do day to day?
— Why do we run an AI Maturity Assessment instead of selling pilots?
— What happens after go-live, since that is where a lot of AI work quietly starts to drift?

We skipped the scripts and answered your questions about what AI looks like in production.

Watch the full Q&A, and if it lines up with where your organization is, the offer at the end is simple: a straight conversation about what is actually possible.

🚀 We Open-Sourced Our AI Evaluation FrameworkBuilding AI is one thing. Making sure it keeps delivering reliable results ...
06/24/2026

🚀 We Open-Sourced Our AI Evaluation Framework

Building AI is one thing. Making sure it keeps delivering reliable results after deployment is another.

That’s why we’re open-sourcing eval-ai-library — our AI evaluation framework featuring 15+ metrics for RAG systems and AI agents, developed through real-world production engagements across healthcare, real estate, and digital experience.

This is the framework we use to measure AI quality and reliability in production.

🔗 GitHub link in profile Bio.

⭐ If you find it useful, give the repo a star and help more teams discover it.

🌊 One Wave, two unforgettable events!From enjoying the vibrant local atmosphere in Valencia to boat tours in Stuttgart, ...
06/20/2026

🌊 One Wave, two unforgettable events!

From enjoying the vibrant local atmosphere in Valencia to boat tours in Stuttgart, our teams shared days full of joy, connection, and great memories.

Different locations, one team spirit 💙

06/12/2026

“Claude has become part of my daily workflow.”

We spoke with our Software Developer, Hazir, about how he’s using Anthropic Claude to save time, work more efficiently, and boost productivity.

🎥 Watch the video to learn more.

🚀 Big news: First Line Software is now an Anthropic Claude Select Partner.As an AI-native engineering company, we help o...
06/10/2026

🚀 Big news: First Line Software is now an Anthropic Claude Select Partner.

As an AI-native engineering company, we help organizations move from AI experimentation to production-ready solutions that create real business value.

From intelligent automation to AI-powered applications and digital experiences, we’re helping clients unlock the potential of modern AI technologies, including Claude.

We’re excited to deepen our collaboration with Anthropic and support organizations on their AI journey.

🌊 Our One Wave journey has begun!The first stop was Montenegro, together with our Serbia team, bringing a Spanish twist ...
06/04/2026

🌊 Our One Wave journey has begun!

The first stop was Montenegro, together with our Serbia team, bringing a Spanish twist to this year’s Open Air Fest.

A day of poolside fun, dancing, music, great food, and even better company — celebrating the connections that bring us together across cultures and borders.

More One Wave moments are coming soon! 🌍

🌊 Our One Wave journey has begun!The first stop was Montenegro, together with our Serbia team, bringing a Spanish twist ...
06/04/2026

🌊 Our One Wave journey has begun!

The first stop was Montenegro, together with our Serbia team, bringing a Spanish twist to this year’s Open Air Fest.

A day of poolside fun, dancing, music, great food, and even better company — celebrating the connections that bring us together across cultures and borders.

More One Wave moments are coming soon! 🌍✨

05/22/2026

🏃‍♂️ Last weekend, our teammates joined The Wings for Life World Run from different cities and time zones to help raise funds for spinal cord injury research.

This year, 346,527 participants across 173 countries raised €9.2 million to support the cause. We’re proud our team was part of it, including one teammate who even pushed past 20km. 💪

We build technology, but we’re really trying to make things better for people. Days like this remind us why that matters. 🙌

Address

1 Broadway
Cambridge, MA
02142

Opening Hours

Monday 9am - 10pm
Tuesday 9am - 10pm
Wednesday 9am - 8pm
Thursday 9am - 8pm
Friday 9am - 8pm

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