Senior Data Engineer

Cloud & warehouse: GCP, BigQuery, Bigtable, Cloud Storage

Streaming & messaging: Pub/Sub, Kafka

Processing: Dataflow (Apache Beam), with Flink/Spark where appropriate

Orchestration: Airflow (Cloud Composer)

Analytical store: ClickHouse

Languages: Python, SQL

Modelling & quality: dbt, data quality gates

Containers & CI/CD: Docker, Kubernetes, GitHub Actions / equivalent

Legacy (being retired): Snowflake

Design and build batch and streaming pipelines on Dataflow, Pub/Sub, and Kafka feeding BigQuery, Bigtable, and ClickHouse

Help drive the migration off Snowflake onto our GCP-native stack — and retire shadow pipelines along the way

Own the orchestration layer in Airflow, including SLAs, retries, and data quality gates

Model data for analytics and for ML — including feature pipelines that serve both training and low-latency online inference

Partner with ML engineers on feature stores, drift monitoring, and retraining workflows

Capture requirements from stakeholders and translate them into pragmatic, well-scoped data products

Continuously improve data quality, reliability, observability, and cost efficiency

Identify new data sources worth acquiring and integrate them cleanly

🎯You'll have the exhilarating opportunity to contribute to a product that is highly appreciated by users and the cybersecurity community at large

🎯 You'll experience a highly supportive and caring environment, fostering growth, flexibility, and autonomy

🎯 You'll embark on an exciting journey of continuous learning and problem-solving, leveling up as our organization grows

🎯 Most importantly, you'll have a blast at HTB 🥳 because fun is an essential ingredient in our recipe for success! Just wait until you see our global meet-ups!

Private health care

Paid paternity leave

25 annual leave days

Free lunch & snacks at the office

120€ Ticket Restaurant by Edenred

Dedicated budget for training and professional development, participation in conferences

Full access to the Hack The Box lab offerings; so you can learn how to hack 😉

State-of-the-art equipment (mac, iPhone, and mobile plan)

Flexible WFH (Hybrid Model) - Fully Remote is also an option if you're not an Attica resident

Our benefits package is designed to provide strong support to our team, but it may vary depending on location and type of employment (e.g., UK, Greece, or engagement through an Employer of Record).

Level 1: To complete level one’s objective, submit your application.

Level 2: Meet the Talent Acquisition team. Level’s objective: highlight your past achievements, ambitions, and values.

Level 3: Meet the hiring team. Level’s objective: connect with the hiring team and share with them your achievements.

Level 4: Complete 2 assignments that align with day-to-day job-related tasks and responsibilities. Part of the assignment is discussing it with the hiring team in a debriefing session, in order to walk the team through your thinking process.

Level 5: Congratulations! Not many reach this level 💪. Level’s objective: have a constructive, final conversation with senior leadership to explore the role and your future at HTB.

Level 6: You've officially received an offer from HTB! To complete the last level and the Quest, all you need to do is accept the offer.

Quest complete. Congratulations, you’re officially one of us 🥳🎉🎇Your next quest: complete the onboarding.

At Hack The Box, we are on a quest to find the most exceptional and enthusiastic talent to join our team. Whether or not you consider yourself a gamer, we value what makes you unique and want to know more about you. This job post provides just a glimpse of the incredible gamified experience our business and consumer customers enjoy through our platforms. So, if you're ready to embark on a journey of growth and adventure, we can't wait to meet you!

Hack The Box is the Cyber Performance Center with the mission to provide a human-first platform to create and maintain high-performing cybersecurity individuals and organizations.

Hack The Box is the only platform that unites upskilling, workforce development, and the human focus in the cybersecurity industry, and it’s trusted by organizations worldwide for driving their teams to peak performance. Offering an all-in-one environment for continuous growth, assessment, and recruitment, Hack The Box provides solutions for all cybersecurity domains.

Launched in 2017, Hack The Box brings together the largest global cybersecurity community of more than 3 million platform members. Rapidly growing its international footprint and reach, Hack The Box is headquartered in the UK, with additional offices in the US, Australia, and Greece.

Get the most important updates on HTB’s latest year !

We are super proud to share that HTB’s all three entities across the UK , US , and Greece have been Certified as a Great Place to Work (Oct 2023-Oct 2024).

Furthermore, in 2024 the HTB's Greek entity has been listed by the Great Place to Work Institute as the #2 Best Workplace in Greece and #10 Best Workplace in Europe (among Small & Medium Workplaces💪).

Take a sneak peek at how it is to be part of HTB and our 2023 Global Retreat . Get more insights about our HTB culture and employee experience by visiting the “ about us ” section of our site, our career site , and Glassdoor .

At Hack The Box, we are committed to fostering a diverse, inclusive, and equitable workplace. We believe that diversity enriches our performance, services, and the communities we serve. As such, we ensure that all job applications are considered solely based on merit, skills, and qualifications. We do not discriminate on grounds of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We are dedicated to providing a fair and respectful work environment that reflects our values.