Staff Software Engineer, ML Engineering



Software Engineering, Data Science
Budapest, Hungary
Posted on Tuesday, June 25, 2024

Who Are You

We seek a highly skilled and experienced Staff Software Engineer to join our dynamic and growing ML Engineering team. As a Staff Software Engineer for ML Engineering, you will build platforms that empower fellow engineers and Data Scientists to create market-leading fraud prevention products. We want you to help us lead the scaling of our business, make data-driven decisions, and contribute to our overall ML and data strategy. The ideal candidate must:

  • Effectively communicate complex data problems by tailoring the message to the audience and presenting it clearly and concisely.
  • Balance multiple perspectives, disagree, and commit when necessary to move key company decisions and critical priorities forward.
  • Ability to work independently in a dynamic environment and proactively approach problem-solving.
  • Be committed to driving positive business outcomes through expert data handling and analysis.
  • Be an example for fellow engineers by showcasing customer empathy, creativity, curiosity, and tenacity.
  • Have strong analytical and problem-solving skills, with the ability to innovate and adapt to fast-paced environments.
  • Design and build clear, understandable, simple, clean, and scalable solutions.

What You'll Do

  • Be an individual contributor who can navigate between design/architecture and execution of the design.
  • Modernize Signifyd’s Machine Learning (ML) Platform to scale for resiliency, performance, and operational excellence, working closely with Engineering and Data Science teams across Signifyd’s R&D group.
  • Work alongside ML Engineers, Data Scientists, and other Software Engineers to develop innovative big data processing solutions for scaling our core product for eCommerce fraud prevention.
  • Take full ownership of significant portions of our ML processing products, including collaborating with stakeholders on machine learning models, designing large-scale data processing solutions, creating additional processing facets and mechanisms, and ensuring the support of low-latency, high-quality, high-scale decisioning for Signifyd’s flagship product.
  • Own the significant advancement of our model training and data processing ecosystem, including the evolution of our feature stores and data processing pipelines.
  • Architect, deploy, and optimize ML and Data solutions on AWS, developing scalable data processing solutions to streamline data operations and analysis and enhance data solution deployments.
  • Implement data and ML processing solutions for offline, batch, and real-time use cases.
  • Mentor and coach fellow engineers on the team, fostering an environment of growth and continuous improvement.
  • Identify and address gaps in team capabilities and processes to enhance team efficiency and success.
  • Automate monitoring of model performance and user behavior.
  • Influence the tooling, frameworks, and ML practices with the ML teams.

What You'll Need

  • Ideally has 5-10 years of experience in data/ML engineering, including at least five years of experience as a software or machine learning lead. Have successfully navigated the challenges of working with large-scale data processing systems.
  • Deep understanding of data processing, comfortable working with multi-terabyte datasets, and skilled in high-scale data ingestion, transformation, and distributed processing, with strong Apache Spark experience.
  • Experience in building low-latency, high-availability data stores for use in real-time or near-real-time data processing with programming languages such as Python, Scala, Java, or JavaScript/TypeScript, as well as data retrieval using SQL and NoSQL.
  • Hands-on expertise in data technologies with proficiency in Spark, Airflow, Databricks, AWS services (S3, EMR, SQS, Kinesis, etc.), and Kafka. Understand the trade-offs of various architectural approaches and recommend solutions suited to our needs.
  • Significant experience in programming languages such as Java, Python, or Scala and experience understanding Cloud infrastructure environments including Kubernetes and Serverless.
  • Working knowledge of ML algorithms, clustering algorithms, and binary classifiers (such as XGBoost)
  • Experience using feature stores: homegrown solutions or commercial and open-source products like Tecton and Chronon.
  • Experience with the latest technologies and trends in Data, ML, and Cloud platforms.
  • Demonstrable ability to lead and mentor engineers, fostering their growth and development.
  • You have successfully partnered with Product, Data Engineering, Data Science, and Machine Learning teams on strategic data initiatives.


  • Stock Options
  • Annual Performance Bonus or Commissions
  • Pension matched up to 3%
  • ‘Day one’ access to great health insurance scheme
  • Enhanced maternity and paternity leave (12 weeks full-pay for mums & dads)
  • Paid team social events
  • Headspace Benefits
  • Dedicated learning budget through Learnerbly