Senior Software Engineer with Data Quality

B2B140 - 185 PLN NET PER HOUR

LOCATION + Remote Poland: Katowice, Kielce, Kraków, Wrocław

VirtusLab is a leading European software consulting and engineering company. Our mission is to craft clean code and practical solutions with precision and purpose. We foster a dynamic culture rooted in strong engineering, a sense of ownership, and transparency, empowering professionals to make a substantial impact in the software industry.

About the role

Java Expert

Kotlin Advanced

Spring Boot Advanced

GCP Advanced

BigQuery Regular

Kubernetes (GKE) Basic

Apache Beam Basic

Apache Kafka Basic

Python Basic

Snowflake Basic

Project

PTI

Project scope

The team is responsible for developing and maintaining one of the key data processing platforms. Currently, the focus is mainly on DevOps initiatives and R&D work, which is why we’re looking for someone to take ownership of the Data Quality area and have a real impact on the quality of data delivered to clients. Your main responsibility will be to identify, analyse, and eliminate data quality issues, as well as build solutions to reduce their recurrence in the future.

This is a role with a high degree of autonomy and real impact; you’ll work alongside an experienced team of engineers, while also having the space to propose your own improvements and shape the overall approach to Data Quality. The project presents interesting technical challenges. Any mechanisms for improving data quality must be designed so as not to affect the performance of the production environment. Instead of “inline” solutions, offline approaches are used, allowing issues to be analysed and fixed without impacting data processing time. We’re looking for someone who will help not only reduce the existing backlog of data quality issues, but also develop a more proactive approach to detecting and preventing problems. This is an interesting project for someone who enjoys working at the intersection of data engineering, analytics, and automation and wants to make a real impact on the stability and quality of a large data ecosystem.

Tech stack:

Kotlin
Java
Spring Boot
Google Cloud Platform (GCP)
BigQuery
Bigtable
Snowflake
Apache Beam

Challenges

challenges related to high-performance data processing and large system scale,
working with a modern technology stack in a cloud environment.
AI Native Organisation

Team

Around the product, there are a couple of subteams; you will be the third teammate of the Data Quality team that focuses on improving the quality of the data portfolio.

Project

NeverBounce

Project scope:

We are developing an email validation system for one of our major customers – a service that helps companies know right away if an email address is correct, valid, and has no problems in receiving messages. Fewer email sending problems, more organized databases, good reputation of the sender & sending millions of emails every day.

The solution is now completely rebuilt and transferred from AWS to the modern Google Cloud server. The main team is building the new version but will need your help in managing the existing one – troubleshooting old issues, fixing bugs, providing support, and ensuring a seamless process during the transition until the complete new platform is available.

The subject is quite clear – you will see that in a couple of weeks you will apply your efforts to programming, rather than being involved in figuring out business rules. The challenge is in the environment: the running system that is constantly used by many people and is securely protected and requires every change to be well-thought-out.

Tech stack:

Java
Spring Boot
Google Cloud Platform (GCP)
AWS

Why it's worth it? Challenges:

being part of a full platform rewrite and a cloud migration from AWS to GCP,
real ownership, you decide how to approach and fix what lands on your plate,
a clear domain with interesting engineering problems rather than the other way around,
working on a product used directly by the client’s customers,
modern stack in a cloud-native environment,
AI Native Organization.

Expected Capabilities & Expertise:

– Data analyst instincts + software engineer’s hands. ~70% of the job is finding a cohort in BigQuery, working out why the data is wrong, and fixing it at scale. Strong SQL and genuine curiosity about data are non-negotiable.

– JVM backend (Kotlin/Java, Spring Boot). Must be able to build their own remediation tooling and checks, not just run queries. Beam/Dataflow, Kafka, Snowflake, Bigtable are a plus, not a must.

– Data quality/observability mindset. Has built monitors, data tests, or anomaly detection. Understands the difference between firefighting and building prevention and wants the second.

– Ownership and autonomy. The backlog is unassigned and partly undefined. They must take a vague ticket, scope it themselves, deliver, and propose what’s next. Fluent English, direct work with the US team, remote.

– Comfortable with legacy and ambiguity. A live, latency-sensitive system where fixes run offline, and validation is statistical, not a green test. No greenfield here.

A few perks of being with us

Building tech community

Flexible hybrid work model

Home office reimbursement

Language lessons

MyBenefit points

Private healthcare

Training Package

Virtusity / in-house training

And a lot more!

Apply now

Senior Software Engineer with Data Quality

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Future recruitment processes: I hereby give consent as per art. 6.1.a of the GDPR to the processing of my personal data by Virtus Lab Sp. z o. o. (as Co-Controller for a full list of joint controllers, see Privacy Policy) with its headquarters at Szlak 49 Street, 31-153 Cracow, in order to use this data in future recruitment processes. I hereby agree to possible storage of my personal data for this purpose in Virtus Lab’s database for a period of 36 months maximum. At the same time I accept the Privacy Policy of the Data Controller. I acknowledge that I have the right to access this data or have it rectified or deleted on demand. This consent can be withdrawn at any point, but this does not make the previous processing illegal*.

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Are you interested in specific tech stack/domain/project? Let us know!

If you would like to add something?

Coordinated by

Anna Goraj-Schuster

Talent Acquisition Lead

Senior Software Engineer with Data Quality

B2B140 - 185 PLN NET PER HOUR

LOCATION + Remote Poland: Katowice, Kielce, Kraków, Wrocław

Apply now