Senior Machine Learning Engineer - Agents dataCanva • London, England, United Kingdom
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Senior Machine Learning Engineer - Agents data
Canva
- London, England, United Kingdom
- London, England, United Kingdom
À propos
Job Overview We are building AI that feels magical and lands real impact for millions of people. We're looking for a Machine Learning Engineer to own the data foundations that power our multimodal agent research—building the pipelines, datasets, and tooling that turn ambitious research ideas into trainable reality.
About The Team We explore multimodal agentic architectures, build scalable training and evaluation loops, and partner closely with product and platform teams to turn breakthroughs into delightful product features. We are a cutting‑edge post‑training team, developing new multimodal agentic systems.
About The Role You'll be responsible for the data lifecycle that fuels our agent research: from collection and curation through to preprocessing, quality assurance, and delivery into training pipelines. You’ll work closely with research scientists to understand what data is needed, then design and build the systems to make it happen—reliably and at scale.
What You’ll Be Doing In This Role
Design and build data pipelines for agent training: collection, filtering, deduplication, formatting, and versioning across text, image, and multimodal sources.
Develop tooling for dataset construction—including human annotation workflows, synthetic data generation, and preference data collection for RLHF/DPO‑style training.
Own data quality: build validation frameworks, monitor for drift and contamination, and establish standards that make datasets trustworthy and reproducible.
Create evaluation datasets and benchmarks in collaboration with researchers—curating task distributions that surface real failure modes.
Build and maintain infrastructure for efficient data loading, storage, and retrieval at scale (S3, distributed systems, streaming pipelines).
Collaborate with research scientists to translate research requirements into concrete data specifications, and iterate as experiments reveal new needs.
Document datasets thoroughly: provenance, known limitations, intended use cases, and versioning history.
Profile and optimize research code for training and inference efficiency, implement comprehensive test coverage for data pipelines and ML workflows, ensuring reliability and catching regressions early.
Elevate codebase quality through code reviews, refactoring, and establishing engineering best practices that help research velocity scale sustainably.
Contribute to team roadmaps by identifying data bottlenecks and proposing solutions that unblock research velocity.
You’re likely a match if you have
Strong software engineering skills in Python, with experience building production‑grade data pipelines and ML DevOps.
Practical experience with prompt engineering—designing, testing, and refining prompts for reliable LLM/VLM outputs.
Experience with ML data workflows: large‑scale data processing and loading (Ray, or similar), data versioning, and format considerations for training (tokenization, batching, sharding).
Hands‑on experience working with data pipelines for large‑scale distributed ML training runs.
Familiarity with annotation tooling and human‑in‑the‑loop data collection (Label Studio or internal systems).
Understanding of ML training requirements—you know what “good data” looks like for LLM/VLM fine‑tuning and can anticipate downstream issues.
Experience loading and writing large datasets to/from cloud infrastructure (AWS) and distributed storage systems.
Strong communication skills: you can work with researchers to scope ambiguous problems and translate needs into actionable plans.
A collaborative approach, comfortable taking ownership and iterating quickly.
Nice to have
Experience with preference data collection for RLHF or reward modeling.
Familiarity with multimodal data (image‑text pairs, video, design assets).
Experience building synthetic data generation pipelines using LLMs.
Background in data quality metrics and monitoring systems.
Contributions to dataset releases or benchmarks in the ML community.
What’s in it for you? Achieving our crazy big goals motivates us to work hard—and we also offer a stack of benefits to set you up for every success in and outside of work.
Here’s a Taste Of What's On Offer
Equity packages – we want our success to be yours too.
Inclusive parental leave policy that supports all parents & carers.
An annual Vibe & Thrive allowance to support your wellbeing, social connection, home office setup & more.
Flexible leave options that empower you to be a force for good, take time to recharge, and support you personally.
Other Stuff To Know We make hiring decisions based on your experience, skills and passion, as well as how you can enhance Canva and our culture. When you apply, please tell us the pronouns you use and any reasonable adjustments you may need during the interview process. Please note that interviews are predominantly conducted virtually.
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Compétences linguistiques
- English
Avis aux utilisateurs
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