Sonalake logo

Your software partners. Using cutting-edge analytics, automation, and visualisation technologies, we help organizations innovate. The result is greater intelligence, insight, efficiency, and opportunity for business domains.

CorporationTelecom & many more170Poznań (+2 locations)

tech stack

Java logo


Spring logo


Spring Boot logo

Spring Boot

JS logo


React logo


Kotlin logo


Selenium logo


AWS logo


Docker logo


Kubernetes logo


our team

Ciaran Treanor


I head up engineering and have a background in distributed systems, high-performance applications and product teams. I’m also a language geek. I run, race sailboats, watch a lot of rugby, and go to far too many gigs.

Egle Venclovaite

Head of Design

I lead the design and marketing team. I develop strategic design vision for the company and oversee product design services for clients. I like hiking with my two pups, cooking, interior design and DIY.

Artur Sulkowski

Software Engineering Manager

I strive to get the bigger picture and connect the worlds of engineering and business. My job is to ensure the balance between development efficiency, team satisfaction and customer success.

take a closer look

Who we are

We’re a trusted software partner that provides product design and development, engineering teams support, and expert consulting. We develop innovative, open-source software across the full stack.

Communication service providers use our network service analytics solution, VisiMetrix, to monitor, analyse, visualise and maintain network performance. Our Switched on Fibre FTTx BSS solution is a modular suite of software that’s used to automate the lead-to-cash journey for fibre operators.

Our clients

We work with international clients, global tech brands and emerging start-ups. Our clients include the likes of Three, Vodafone, Ericsson, eir, Yahoo!, Orreco, Broadridge, Beyond Identity and Truata.

Career development

There’s an opportunity to work on different tech stacks and methodologies, gain invaluable industry experience, and accelerate your professional growth with on-the-job learning. We embrace innovation by creating new tools for internal use, contributing to the open-source community, and researching ways to use existing products in new problem domains.

Learning and development

We’re committed to developing the capabilities, skills and potential of each of our employees. Everyone gets access to individual training budgets and five paid training days per year.

Peer-to-peer learning is central to everything we do. It’s not just mentorship opportunities with senior developers, designers or leaders. We organise regular knowledge-sharing talks, workshops and communities of practice to help you upskill and stay up to date with new technologies and methodologies.

Be part of a team

We’re an inclusive organisation that embraces diversity, with 13 different nationalities employed at Sonalake. We know that different perspectives enrich us and help to make us more competitive. We have a flat organisational structure with no silos or hierarchies. Here, you can be part of a team where everyone is respected, valued and part of the conversation.

our offices


    plac Andersa 5


    Quantum House, Temple Rd


    Mlynské nivy 18890/5

company insight

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