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Day 97
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Data Engineer
Budapest, Hungary
Open 3 months, first seen by us 97 days ago- Pay
- Pay not listed
- Work setting
- Not stated
- Employment
Full-time — employment source
Employment type in the employer’s posting: Full-time
From the employer’s posting
What you’ll work on
Full postingBuild and maintain dataset ingestion, cleaning, and versioning pipelines
Design and operate labeling workflows with quality control and agreement tracking
Own dataset testing for coverage, class balance, and leakage
Manage dataset versioning and lineage back to exact training data
Partner with data science and product engineering on data-sharing formats
From the employer’s posting
Build and maintain dataset ingestion, cleaning, and versioning pipelines
Design and operate labeling workflows, including quality control and inter-annotator agreement tracking
Own dataset testing: coverage analysis, class balance, leakage detection, dataset documentation
Manage dataset versioning and lineage so every model release traces back to exact training data
Partner with data science and product engineering teams on data-sharing boundaries and formats
What you’ll bring
All qualificationsCore experience
- 3+ years of data engineering experience
- Strong Python and SQL
- Experience with data versioning tools such as DVC or LakeFS
- Experience with pipeline orchestration such as Airflow or Dagster
- Understanding of ML data issues: leakage, label noise, distribution shift
Qualification wording
3+ years data engineering experience
strong Python and SQL
Experience with data versioning tools (DVC, LakeFS, or similar)
pipeline orchestration (Airflow, Dagster, or similar)
Understanding of ML-specific data concerns: train/test leakage, label noise, distribution shift
Posting record
Report an errorOpen 3 monthsWe first saw this posting 97 days ago and it is still up. Roles open this long are often slow to fill or kept open to collect applications.
- Status in our records
- Live
- First seen by us
- Jul 29, 202697 days ago
- Recorded sightings
- 61
- Last seen by us
- Nov 4, 2026
These dates show when we found the posting. Check the employer’s website to confirm it is still accepting applications.
How this job compares
OPSWAT is hiring
7 open jobs
Open jobs by the week we first saw them, last 12 weeks.
- Hiring at a steady pace
- Its jobs tend to stay up a long time
See how this role fits your experience
Add your resume and we’ll mark which of these tools you already use, and point out anything in the posting that could rule you out.
- Python
- SQL
- Airflow
- Dagster
Where the posting names them
What We Are Looking For - 3+ years data engineering experience; strong Python and SQL - Experience with data versioning tools (DVC, LakeFS, or similar) and pipeline orchestration (Airflow, Dagster, or similar)
- 3+ years data engineering experience; strong Python and SQL - Experience with data versioning tools (DVC, LakeFS, or similar) and pipeline orchestration (Airflow, Dagster, or similar) - Understanding of ML-specific data concerns: train/test leakage, label noise, distribution shift
Your next step
Complete your application on www.opswat.com. The employer’s form will show what is required.
Applying through Greenhouse
- No account needed: the form is one page, with an “Autofill my application” option that reads your resume.
- Greenhouse doesn’t read resumes over 2.5 MB, or details placed in a header, footer, text box, table or second column. The file still attaches, but a recruiter has to type you in by hand.
Already applied? Track this application
About the role
We file this job under Data Engineer, by the work the posting describes.
Data engineers build and run the pipelines that copy data out of apps and outside services into a warehouse or lake, and fix them when a source changes or a load fails.
Expect SQL, Python, a cloud platform, a scheduler such as Airflow, and often tools for large data such as Spark or Kafka.
An analytics engineer works one step later, turning the raw data a data engineer lands into clean tables people can query.
US government figures for database architects
- Median yearly pay, May 2025
- $139,500
- Expected change, 2025 to 2035
- 9.4% more jobsagainst 3.5% for all jobs
The government has no code for data engineers, so these figures are for the closest group, database architects, which includes data integration and data warehousing specialists.
Source: US Bureau of Labor Statistics, Occupational Employment and Wage Statistics (May 2025) and Employment Projections (2025 to 2035). Occupation code 15-1243.
Job description
OPSWAT, a global leader in IT, OT, and ICS critical infrastructure cybersecurity, delivers an end-to-end platform that gives public and private sector organizations and enterprises the critical advantage needed to protect their complex networks, secure their devices, and ensure compliance. Over the last 20 years our commitment to innovative technology has earned the trust of more than 1,700 organizations, governments, and institutions globally, solidifying our role in protecting the world’s critical infrastructure and securing our way of life.
The Position
As a Data Engineer you will own the data foundation the team runs on: dataset pipelines, labeling workflows, and data quality. Model quality is bottlenecked by data quality; this role removes that bottleneck. We've had a strong presence in Veszprém for over a decade, and we're now expanding into Budapest, this role is based in our newly opening Budapest office, right at the start of that growth.
You Will Have the Opportunity to
- Build and maintain dataset ingestion, cleaning, and versioning pipelines (training, validation, and held-out evaluation sets)
- Design and operate labeling workflows, including quality control and inter-annotator agreement tracking
- Own dataset testing: coverage analysis, class balance, leakage detection, dataset documentation
- Manage dataset versioning and lineage so every model release traces back to exact training data
- Partner with data science and product engineering teams on data-sharing boundaries and formats
What We Are Looking For
- 3+ years data engineering experience; strong Python and SQL
- Experience with data versioning tools (DVC, LakeFS, or similar) and pipeline orchestration (Airflow, Dagster, or similar)
- Understanding of ML-specific data concerns: train/test leakage, label noise, distribution shift
- Rigor in documentation and reproducibility
Why You'll Love Working Here
- Innovative Environment: Join a team at the forefront of cybersecurity innovation. At OPSWAT, you'll have the opportunity to work with cutting-edge technologies and contribute to solutions that shape the future of cybersecurity.
- Collaborative Culture: We foster a culture of collaboration, where every team member's input is valued. You'll have the chance to work alongside talented individuals who are passionate about cybersecurity and dedicated to making a difference.
- Professional Growth: At OPSWAT, we prioritize the growth and development of our team members. You'll have access to ongoing training and development opportunities to enhance your skills and advance your career in cybersecurity.
- Impactful Work: Join a mission-driven company that is committed to securing the digital world. Your work at OPSWAT will have a meaningful impact on organizations worldwide, protecting critical data and assets from evolving cyber threats.
- Fun and Dynamic Atmosphere: We believe in fostering a fun and dynamic work environment. From team-building activities to social events, you'll have plenty of opportunities to connect with your colleagues and enjoy the journey together.
OPSWAT is an equal opportunity employer. We celebrate diversity and are committed to providing an environment where equal employment opportunities are extended to all employees and applicants, free of discrimination and harassment of any type. All employment decisions are based on individual qualifications, job requirements, and business needs without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other category protected by federal, state, or local laws.
Recruiting Agencies: we do not accept unsolicited resumes from third party agencies for any of our open positions. To submit resumes for our jobs, there must be a recruiting contract approved by our legal team and endorsed by both parties. We are currently not accepting additional 3rd party agencies at this time.
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- Pay
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- Location & working pattern
Budapest, Hungary
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- Work authorization
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