Applied research engineer Work, Jobs (with Salaries)

ML Research Engineer
White Circle —London
- £120,000 - £250,000 a year
- Full-time
- Hybrid work
- English
- SQL
- Python
- Relocation assistance
- Annual leave
Research Engineer, Algorithms
Normal Computing Corporation —London
- £300,000 - £400,000 a year
- Full-time
- Hybrid work
- Doctoral degree
- Machine learning
- Python
14d
Senior Applied Research Engineer - Video Team
Synthesia —London
- Full-time
- Remote
- AWS
- Communication skills
- Python
- Annual leave
KTP Associate Agentic AI Security and Privacy Research Engineer
University of Edinburgh —Edinburgh
- Full-time
- English
- University
- APIs
- Annual leave
- Employee discount
AI Research Engineer (Multi-Modal Reinforcement Learning) - 100% Remote Worldwide
Tether Operations Limited —London
- Full-time
- Remote
- Doctoral degree
- Computer Science
- English
Research Engineer, Domain Scaling
Normal Computing Corporation —London
- £250,000 - £340,000 a year
- Full-time
- Hybrid work
- AI
Applied AIML Lead Research Engineer
JPMorganChase —Glasgow
- Full-time
- Doctoral degree
- Computer Science
- Master's degree
4d
Junior AI Engineer - Remote
Attercop —Brighton
- Full-time
- Remote
- Azure
- Computer Science
- Engineering
Quick apply
4d
Junior AI Engineer - Remote / Contract
Attercop —Brighton
- Remote
- Azure
- Computer Science
- Engineering
Quick apply
4d
Research Engineer in Reinforcement Learning
InstaDeep —London
- £70,000 - £90,000 a year
- Hybrid work
- Business development
- Software development
- AI
Quick apply
Member of Technical Staff- Research Engineer (Harness Engineering and Agentic Orchestration)
Tessl —London
- Full-time
- Hybrid work
- Bar
- Doctoral degree
- Master's degree
Advanced Research Engineer – Laser Machining
The Manufacturing Technology Centre —Coventry
- £42,000 - £48,000 a year
- Full-time
- Hybrid work
- Doctoral degree
- Engineering
- Presentation skills
Quick apply
Graduate Machine Learning Researcher - Chicago
IMC Financial Markets —London
- £300,000 a year
- Full-time
- Doctoral degree
- Computer Science
- Machine learning
- Annual leave
Staff Research Engineer - Multimodal Generative Modelling
Synthesia —London
- Full-time
- Remote
- Communication skills
Applied Scientist — AI Studio
Wiley —Oxford
- £53,000 - £75,867 a year
- Full-time
- Doctoral degree
- Contracts
- AI
Applied Research Engineer - Dubbing
Synthesia —London
- Full-time
- Remote
- Communication skills
- Python
- SDLC
- Annual leave
Applied AI - Member of Technical Staff
Callosum —London
- £101,000 - £192,000 a year
- Full-time
- Master's degree
Quick apply
Staff Machine Learning Infrastructure Engineer, Simulation
Waymo —London
- £155,000 - £163,000 a year
- Full-time
- Computer Science
- Bachelor's degree
- Machine learning
Assistant Professor (Research Focussed) (111823-0726)
University of Warwick —Coventry
- £47,389 - £56,535 a year
- Doctoral degree
- Analysis skills
- University
8d
Senior Applied AI Engineer
Xapien —London
- Full-time
- Hybrid work
- Master's degree
- Life insurance

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ML Research Engineer

White Circle
London

Apply Now

Job details

Full-time
£120,000 - £250,000 a year

Benefits

Relocation assistance
Annual leave

Qualifications

Multilingual
English
SQL
Natural language processing
Python

Full job description

TLDR: We are looking for several ML Engineers to train, post-train, and evaluate the LLMs at the core of our platform. This is hands-on modern model training work: large-scale data pipelines, SFT/RLHF/DPO-style alignment, reward models, distributed multi-GPU training, and evaluation.

About us

White Circle is an AI Safety company building the safety, reliability, and optimization layer for AI systems. At the core of our platform are policies – simple natural-language rules that define what an AI model should and shouldn’t do. We automatically test, enforce, and continuously improve these policies at scale.

We’ve raised $11M from top funds, founders, and senior leaders at OpenAI, Anthropic, HuggingFace, Mistral, DeepMind, Datadog, Sentry, and others
We process over 100M+ API calls every month
We fine-tune and train our own LLMs so they run faster and cheaper than any open or proprietary model

We’re a small, highly focused team. If you want to work deeply on hard problems, see your work ship to production quickly, and influence how AI safety is actually built – you’re the one we need.

You will:

Turn petabytes of unstructured text into a structured, explorable view (topics, clusters, segments, trends, anomalies): iterate from “unknown unknowns” to stable definitions we can track.
Build scalable representation pipelines: sampling strategies, preprocessing/normalization, embeddings at scale, indexing, and retrieval to make the corpus searchable and analyzable.
Use LLMs pragmatically: labeling/classification, weak supervision, data enrichment, summarization, and automated diagnostics of inbound volumes (with cost/quality controls).
Deliver insights that change decisions: translate findings into product and operational actions (what data we have, what’s missing, where quality breaks, what to prioritize next).
Ship self-serve analytics: datasets, data models, and lightweight tools/dashboards so the team can explore and answer questions without ad-hoc requests.
Partner closely with engineering/research: align pipelines with production constraints (latency/cost/privacy), and integrate outputs into workflows.

You'll fit right in if you:

Strong Python + SQL with an engineering mindset: you can build reliable pipelines, not just notebooks.
Solid applied NLP/ML experience on real-world text: embeddings, clustering, topic modeling, semantic search, classification; you understand failure modes and how to debug them.
Comfortable at scale: distributed processing, large-scale storage-querying, and performance-cost tradeoffs.
You know how to evaluate fuzzy problems: offline/online metrics, human-in-the-loop labelling, inter-annotator agreement, drift monitoring, and reproducibility.
Have prior work with safety/moderation datasets, policy/rule systems, or high-volume logging/observability

A big plus:

A public builder footprint: open-source models, datasets, or training frameworks on HuggingFace/GitHub, benchmarks, papers (workshop or main conference), or technical posts with real usage
Experience training models at a frontier or near-frontier lab, or leading open-source model releases with documented adoption
Experience with RL methods for LLMs beyond standard RLHF: online RL, GRPO-style methods, or novel alignment approaches
Experience with moderation, safety, or classification models at scale
Multilingual model training experience

Why White Circle

Paid time off in line with your local regulations, no matter where you work from
Work from Paris (hybrid) with a relocation package available, or work from London (note: we are currently unable to provide relocation support and medical insurance for London-based roles)
Comprehensive medical insurance for our France-based team
All the hardware, tools, and services you need
Covered subscriptions for AI agents and IDEs
Team off-sites twice a year: we've recently been to the Alps and to Saint-Tropez

How we hire

Introductory call with HR (25 min)
Take-home test task
Technical interview with Head of Applied Research (60 min)
Final conversation with our CEO (45 min)

Please submit your application in English.

Compensation Range: $120K - $250K

Apply Now

Refine Your Search

applied research engineer jobs

ML Research Engineer

Research Engineer, Algorithms

Senior Applied Research Engineer - Video Team

KTP Associate Agentic AI Security and Privacy Research Engineer

AI Research Engineer (Multi-Modal Reinforcement Learning) - 100% Remote Worldwide

Research Engineer, Domain Scaling

Applied AIML Lead Research Engineer

Junior AI Engineer - Remote

Junior AI Engineer - Remote / Contract

Research Engineer in Reinforcement Learning

Member of Technical Staff- Research Engineer (Harness Engineering and Agentic Orchestration)

Advanced Research Engineer – Laser Machining

Graduate Machine Learning Researcher - Chicago

Staff Research Engineer - Multimodal Generative Modelling

Applied Scientist — AI Studio

Applied Research Engineer - Dubbing

Applied AI - Member of Technical Staff

Staff Machine Learning Infrastructure Engineer, Simulation

Assistant Professor (Research Focussed) (111823-0726)

Senior Applied AI Engineer

I want to receive the latest job alerts for applied research engineer

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