Senior Software Engineer - Core Enrichments Team

Krakow, PolandFull-TimeSeniorSoftware Engineering

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You take full ownership of complex systems from design to deployment, delivering reliable, scalable solutions.
You write clean, well-tested code and champion quality across the team.
You mentor others and actively share your knowledge to level up peers.
You navigate trade-offs pragmatically, balancing velocity with maintainability.
You communicate clearly and influence product and tech decisions with transparency.
You spot technical risks early and propose solutions before issues arise.
You thrive working across multiple languages and frameworks, adapting your skills to get the job done.

Gain experience leading large, distributed services used in production at scale.
Deepen your expertise in multi-language codebases (Go, Python, Java, Scala) across diverse data systems.
Develop leadership skills by mentoring engineers and influencing cross-team architectures.
Collaborate with cross-functional partners (data science, product) to shape product roadmaps.
Expand your impact by driving reliability, automation, and operational excellence initiatives.

Own the design and end-to-end delivery of key data enrichment services that process millions of data events daily.
Improve system architecture to enhance reliability, scalability, and performance of data pipelines.
Mentor and guide team members through reviews, knowledge sharing, and pairing sessions to promote best practices.
Collaborate with product and operations teams to identify and mitigate technical risks early.
Drive improvements in testing, monitoring, CI/CD, and automation to reduce operational friction.
Influence technical roadmap decisions and contribute to cross-team initiatives that enhance platform capabilities.

Demonstrated success owning and delivering complex backend services in a production environment.
Strong software development skills with production experience
Proven ability to design scalable, low-latency, distributed data processing systems.
Experience mentoring others and influencing engineering practices and decisions.
Track record of identifying and reducing technical debt and operational risk.
Familiarity with cloud-native infrastructure, CI/CD pipelines, and automated testing frameworks.

We build core enrichment services integral to company-wide data products impacting millions of users.
Our culture values ownership, collaboration, and continuous learning across multiple programming languages and technologies.
We prioritize engineering excellence—high quality, observability, and automation are in our DNA.
The team is cross-functional, closely partnering with data science, product, and infrastructure teams.
We support your growth through mentorship, technical leadership opportunities, and a growth mindset.

Annual Leave: 20 or 26 annual leave days per annum plus an additional day for each year of service (to a max of 5).
Private Medical Insurance - Luxmed health & dental cover for you and your dependants.
Commuter Assistance - Up to the value of 80 PLN net a month for public transport.
Savings Plan - Two company saving plans provided by Nationale Nederlanden: Employee Capital Plan (PPK) & Employee Saving Plan (PPO)
QED PROGRAM - Qualtrics Engineer Development (QED) program: support, engineering learning activities up to 10% of engineering work time each quarter.
Wellness - Up to the value of 800PLN gross per quarter can be reimbursed for a variety of wellness activities via our dedicated platform Forma.
A choice of Multispot cards available.
Our employee assistance program with Unum provides counselling and wellbeing support to all employees
Experience bonus - 7000 PLN gross per annum. Qualtrics experience bonus is a program designed to provide experiences to our employees they might not otherwise have.
Group Life & Income Protection Insurance
Glasses/Contact lenses Reimbursement
Free breakfasts, lunches, snacks, and drinks for everyone in the office
Tax-deductible expenses (up to 75% depending on role)