London, England, United Kingdom · Hybrid
Who is Sonar? Sonar is driving the future of agent-centric software development. As the leader in AI code verification and governance, we solve a critical problem: ensuring that software generated by AI-assisted develope…
Skills: Large Language Models, Post-training, Python, Machine Learning, GRPO
AncestryBuckinghamshire, England, United Kingdom · On-site
About Ancestry: When you join Ancestry, you join a human-centered company where every person’s story is important. Ancestry®, the global leader in family history, connects everyone with their past so they can discover, p…
Skills: Document handling, Document preparation, Equipment maintenance, Quality assurance, Organization skills
London, England, United Kingdom · On-site
Team Lead, Site Operations ICON is a global healthcare intelligence and clinical research organisation united by a mission to bring new medicines and treatments to patients faster. As a values-driven organisation, integr…
Skills: Clinical research, Site operations, Team leadership, Performance management, GCP
London, England, United Kingdom · Hybrid
$84k–$155k/yr
Salary Range: £83,510.00 - £155,090.00 Job Description Summary #LI-Hybrid Location London, United Kingdom Relocation Support: This role is based in London, United Kingdom. Novartis is unable to offer relocation support: …
Skills: GCP Compliance, Clinical Research, Drug Development, Quality Oversight, Inspection Readiness
London, England, United Kingdom · On-site
Who We Are Boston Consulting Group partners with leaders in business and society to tackle their most important challenges and capture their greatest opportunities. BCG was the pioneer in business strategy when it was fo…
Skills: Biopharmaceutical Industry Analysis, Biopharma R&D, Problem Solving, Analytical Approaches, Client Communication
London, England, United Kingdom · Hybrid
$84k–$155k/yr
Salary Range: £83,510.00 - £155,090.00 Band Level 6 Job Description Summary #LI-Hybrid Location London, United Kingdom Relocation Support: This role is based in London, United Kingdom. Novartis is unable to offer relocat…
Skills: GCP Compliance, Clinical Operations, Clinical Research, Regulatory Compliance, Risk Management
London, England, United Kingdom · Hybrid
We are Anthony Nolan. We unite people and science – matching stem cell donors to those in need of transplants and treatments and growing our world-leading stem cell register, so everyone can find the lifesaving match the…
Skills: Interpersonal skills, Written communication, Verbal communication, Multitasking, Prioritization
London, England, United Kingdom · Hybrid
About Zego Insurance hasn’t changed much in over a century. The way we live, work and travel has. Good drivers are the entire point of Zego. Seven in 10 drivers on the road are consistently good, but until telematics cam…
Skills: Machine learning, Deep learning, Signal processing, Python, Data science
London, England, United Kingdom · On-site
About AlphaSense: The world’s most sophisticated companies rely on AlphaSense to remove uncertainty from decision-making. With market intelligence and search built on proven AI, AlphaSense delivers insights that matter f…
Skills: German language, Sales, Recruiting, Account management, Sourcing
London, England, United Kingdom · On-site
Company Background Founded in 1983, BTG Pactual is now the largest investment bank in Latin America. We're committed to a future where investing is dynamic and straightforward, which is why we're undergoing a digitizatio…
Skills: Market Risk Analysis, Python, Pandas, NumPy, AI/LLM Tools
London, England, United Kingdom · On-site
About AlphaSense: The world’s most sophisticated companies rely on AlphaSense to remove uncertainty from decision-making. With market intelligence and search built on proven AI, AlphaSense delivers insights that matter f…
Skills: German Language, Market Research, Stakeholder Management, Project Execution, Lead Generation
London, England, United Kingdom · On-site
About the department The Welbeck Central Pharmacy is a specialist clinical pharmacy service supporting a high-performing private day-case centre in London. The department works across a range of surgical and outpatient s…
Skills: Medicines management, Clinical pharmacy, Medicines optimisation, Governance, Patient care
London, England, United Kingdom · Hybrid
Who We Are: PureSpectrum is a rapidly growing market research and insights platform that simplifies technology, allowing researchers to gather and activate consumer data without disruption. As the go-to solution for high…
Skills: Supply acquisition, Partnership management, Market research, Business development, Strategic planning
London, England, United Kingdom · Hybrid
Host Broadcast Services (HBS) is a leading, independent host broadcast specialist, dedicated to helping international sports federations, organising committees, and rights holders deliver their events to a global audienc…
Skills: Research, Production support, Journalism, Digital media, Sports storytelling
London, England, United Kingdom · Hybrid
GENERAL SUMMARY We are seeking to appoint a non-executive director to Chair our Audit and Risk Committee (ARC) — a pivotal governance role providing strategic oversight of Digital Catapult’s audit, risk management, and f…
Skills: Audit, Risk management, Financial reporting, Governance, Strategic oversight
London, England, United Kingdom · Hybrid
Location: London, UK (Hybrid role) Reporting to: Principal Scientist, Global Technical Development Orchard Therapeutics is a global biotechnology gene therapy company dedicated to transforming the lives of people affecte…
Skills: ELN administration, Data management, Benchling, SQL, Laboratory informatics
London, England, United Kingdom · Hybrid
Graduate Consultant – Strategy Consulting, Strategy3 Application Deadline: 18 August 2026 Department: Graduate Employment Type: Full Time Location: London Compensation: £28,000 / year Description Are you driven by data a…
Skills: Analytical mindset, Problem-solving, Data synthesis, Storytelling, Critical thinking
London, England, United Kingdom · Hybrid
The Product Manager - AI Tools & Infrastructure is responsible for delivering a clear and compelling product strategy for AI-led tools and workflows, driving value for Foundry customers and growth for the business. The r…
Skills: Product strategy, AI tools, VFX workflows, Animation production, Project management
London, England, United Kingdom · Hybrid
About Ogilvy Ogilvy, part of WPP, was founded in 1948 by David Ogilvy. David created a culture that deeply respects and cares about its people and clients. Our mission is to inspire people and brands to make an impact an…
Skills: Medical Writing, Scientific Narrative Development, Cardio-Renal-Metabolic Therapy Expertise, ABPI Guidelines, Sunshine Act Compliance
London, England, United Kingdom · Hybrid
About Ogilvy Ogilvy, part of WPP, was founded in 1948 by David Ogilvy. David created a culture that deeply respects and cares about its people and clients. Our mission is to inspire people and brands to make an impact an…
Skills: Medical Writing, Scientific Strategy, Client Management, Line Management, Pharmaceutical Regulations
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
You will develop and implement advanced post-training solutions for agentic coding models to ensure high-quality, enterprise-grade code generation. Additionally, you will collaborate with cross-disciplinary teams to translate research prototypes into cutting-edge products.
The ideal candidate holds an advanced academic degree (Master's or PhD) in a quantitative field and possesses at least 4 years of industry experience in machine learning. Expertise in LLM post-training techniques such as RLVR, SFT, and policy optimization is required.
Sonar is driving the future of agent-centric software development. As the leader in AI code verification and governance, we solve a critical problem: ensuring that software generated by AI-assisted developers or autonomous agents is reliable, secure, and maintainable.
Integrating seamlessly with Claude Code, Codex, Cursor, GitHub Copilot, Gemini, and Devin, we help over 75% of the Fortune 100 build trusted, reliable, compliant software. Customers who use Sonar are 44% less likely to report an outage due to AI-generated code.
We believe code verification is the critical missing link in the Agent-Centric Development Cycle (AC/DC). Industry giants like Nvidia, ServiceNow, Booking.com, Goldman Sachs, AstraZeneca, and Ford Motor Company count on us to provide independent, explainable, consistent review and governance of their AI-generated code via products like:
Our team operates across global hubs in Austin, Bochum, Dubai, Geneva, London, Singapore, Tokyo, and Washington D.C. We move with a mindset we call CODE:
With over $400M in revenue and profitable, fast-paced growth, we are building the backbone of the AI software revolution. If you’re hungry to have an impact, want to build at a fast pace, and ready to work at the forefront of AI, we want to hear from you.
At Sonar, we are seeking an ambitious senior researcher to join our cross-disciplinary team, innovating and developing the next generation of solutions to build enterprise-grade coding agents and models. You will harness Sonar’s deep experience in static analysis, and combine it with your experience and leading techniques in large language model post-training. If you are interested in being hands-on with state-of-the-art research, building practical solutions that deliver high-impact for customers, and working within a team of innovative researchers and engineers, this role is for you.
\nWhat you will doOutcome Driven Development: Work in a team developing and implementing advanced products that enable customers to post-train models to power their agentic coding practices. These agents need to generate high-quality code that meets their enterprise standards and software development best practices.
Translate Prototypes to Products: Collaborate closely with researchers, research engineers, MLOps and engineers within the team to design hypotheses and experiments, iterate proofs-of-concept quickly and develop successful prototypes into cutting-edge products.
Subject Matter Expert: You will contribute and discuss ideas within our cross-disciplinary team, driving towards the next generation of coding model post-training for enterprises.
Spearhead Research & Innovation: Stay up-to-date with the latest LLM and agentic developments; you are driven by learning and teaching others. You will need to explain complex technical details and concepts to both technical and non-technical audiences.
The ideal candidate will have:
An advanced academic background (Master’s or PhD) in Computer Science, Machine Learning, or a related quantitative field.
4+ years industry experience in machine learning, with a solid understanding of modern software engineering practices and tools.
Fluency with Python including core ML frameworks, experience with Rust or any of SonarQube’s flagship languages (C#, C++, JS/TS, Java) is a plus.
Expertise in post-training of large language models, including:
Policy optimization algorithms (e.g. GRPO, PPO)
Verifier-based RL frameworks (RLVR)
Supervised fine-tuning (SFT)
Data-centric AI methods, including synthetic data and curation
Parameter-efficient fine-tuning (PEFT)
Preference and Safety Alignment
Experience of driving research projects, delivering valuable findings and prototypes, and then converting them into products.
Excellent communication skills in English and a talent for explaining complex scientific topics clearly and concisely.
We're intentional about this. We believe the best teams are built in the room together. Three anchor days — Mondays, Tuesdays, and Thursdays — create the collaboration rhythm that makes a hub office worth having.
Candidates need to be genuinely based in the location the role is posted — if that's not where you are today, we're happy to support relocation for the right person.
At Sonar, we believe that our diversity is our strength. We are a global company that values and respects different backgrounds, perspectives, and cultures. We are committed to fostering a diverse and inclusive work environment where everyone feels valued and empowered to contribute their best. We are proud to be an equal opportunity employer and welcome all qualified applicants, regardless of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.
If you need any accommodation, please reach out to us at [email protected].
All offers of employment at Sonar are contingent upon the results of a comprehensive background check and reference verification conducted before the start date.
Applications that are submitted through agencies or third party recruiters will not be considered.
Trusted by 7M devs, Sonar is committed to enabling developers and organizations to build better code for better software
Sonar is the trust and verification layer for AI code, and the industry standard for automated code review for 17+ years. Sonar delivers deterministic, repeatable, and actionable code verification at scale by integrating code quality and code security into a single platform. The company analyzes more than 750 billion lines of code daily to ensure software is secure, reliable, and maintainable. Sonar is rooted in the open source community and is trusted by 7M+ developers globally, including teams at Snowflake, Booking.com, Deutsche Bank, AstraZeneca, and Ford Motor Company. To learn more about Sonar, please visit: www.sonar.com
Offices: Route de Pré-Bois 1, Vernier, Geneva 1214, CH · 80, Route des Vernes, Building " Le Paon" - 2nd Floor, Pringy, Auvergne-Rhône-Alpes 74370, FR · 111 W 6th St., 200, Austin, Texas 78701, US · Universitätsstraße 142, Bochum, North Rhine-Westphalia 44799, DE · 168 Robinson Road, Capital Tower #20-01, Singapore, 068912, SG
There are currently 1,523 open science & research positions in London, United Kingdom listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Novartis, Ipsos in the UK, JPMorganChase, PULSE HEALTHCARE LIMITED, Genomics England, among others. Browse the listings above to see every active employer.
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