Algorithms Engineer designing and implementing differential privacy systems for Oblivious. Building privacy-enhancing technologies for secure data collaboration across various industries.
Responsibilities
Implement and analyse privacy loss accountants (RDP, zCDP) and their conversions to (ϵ, δ)-DP. Calibrate and apply noise mechanisms (Gaussian, Laplace) based on rigorous sensitivity analysis.
Develop algorithms for static and dynamic sensitivity analysis of relational operators. Build query rewriting logic to inject calibrated noise and manage a per-user privacy budget ledger.
Use Python AST manipulation and static analysis to enforce a DP-safe execution environment, ensuring user-submitted code cannot leak private information.
Implement and benchmark state-of-the-art algorithms (e.g., MWEM, PGM, PrivBayes variants) for high-dimensional synthetic data generation, analysing their privacy-utility trade-offs.
Requirements
Strong foundation in probability, statistics, and linear algebra. You must be comfortable with statistical modelling, proving bounds, and reasoning about error/variance.
Proficiency in Python for scientific computing, including numerical stability considerations (e.g., floating-point precision, clipping, scaling).
Demonstrated ability to translate mathematical concepts from academic papers or technical specifications into robust, well-tested code.
**Desirable**
Direct experience with differential privacy concepts or libraries (OpenDP, SmartNoise, TensorFlow Privacy).
Knowledge of compiler design, abstract syntax trees (ASTs), or program analysis.
Experience with machine learning, particularly with noise models, statistical learning theory, or generative models.
Familiarity with SQL parsers or database internals.
Benefits
Private Health Insurance
Paid Time Off
Work From Home, with one required in-office anchor week every six weeks for deep collaboration and planning
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