Deputy Head of Open Source Development

G-Research; Greater London; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Highly competitive compensation

Annual discretionary bonus

Lunch provided

30 days’ annual leave

9% company pension contributions

Informal dress code

Comprehensive healthcare

Cycle-to-work scheme

Monthly company events

Job summary

G-Research, located in Greater London, is looking for a Deputy Head of Open-Source Development. This senior role involves leading engagement between the open-source program office and internal stakeholders, aligning contributions with business needs, and driving internal adoption of initiatives.

The successful candidate will possess a strong engineering background in areas like distributed systems and machine learning, along with exceptional communication skills to foster relationships across diverse teams.

Competitive compensation, annual bonuses, and other benefits such as 30 days' leave, are included.

Qualifications

• Strong engineering background across distributed systems, data platforms, machine learning, HPC infrastructure, or developer tooling.
• Experience in reviewing or writing production-quality code in Python, C++, Java, Rust or Go.
• Ability to navigate complex codebases and understand architectural trade-offs.
• Excellent communication skills to engage and influence stakeholders.
• Strong relationship-building skills to work effectively across technical and non-technical groups.
• Proven ability to operate in complex environments and manage competing priorities.
• Pragmatic and resilient approach with a passion for open source.

Responsibilities

• Lead engagement between OSPO and internal stakeholders, ensuring alignment between contributions and business priorities.
• Partner with Head of Open-Source Development to shape strategy and evaluate opportunities.
• Build relationships across engineering, research, and leadership teams.
• Identify technical needs and translate them into actionable initiatives.
• Act as primary contact for requests, managing requirements and expectations.
• Evaluate technologies and research tooling for adoption opportunities.
• Drive internal adoption of contributions and gather feedback.
• Promote awareness of OSPO’s capabilities across the firm.
• Support governance, prioritization, and portfolio management.
• Maintain documentation, roadmaps, and reporting on programme impact.

Skills

Distributed systems

Data platforms

Machine learning

HPC infrastructure

Developer tooling

Production-quality code

Excellent communication

Relationship-building

Job description

We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity.

From our London HQ, we unite world-class researchers and engineers in an environment that values deep exploration and methodical execution - because the best ideas take time to evolve. Together we’re building a world-class platform to amplify our teams’ most powerful ideas.

G-Research runs one of the largest and most influential Open-Source Program Offices (OSPO) in the world, comprising 30 - 35 upstream engineers working across machine learning, big-data systems, high-performance computing (HPC), distributed systems, developer tooling and critical infrastructure.

Take the next step in your career.

The role

G-Research operates one of the world’s largest OSPO, partnering closely with projects such as Apache Arrow, Parquet, Polars, Kubernetes and LLVM. Our engineers deliver production-grade improvements that benefit both the wider open-source community and G-Research’s research, machine learning and platform teams.

We are hiring a Deputy Head of Open-Source Development to act as the senior in-office leader for the programme, ensuring our open-source contributions remain closely aligned with internal priorities and business needs.

This is a senior technical leadership role at the intersection of engineering, research and organisational strategy. Working closely with the Head of Open-Source Development, you will build relationships across the Research, Machine Learnin Engineering, Platform, Security, Legal, Architecture and Executive teams, helping to drive the adoption, alignment and understanding of the OSPO’s work across the firm.

Key responsibilities of the role include:

• Leading day-to-day engagement between the OSPO and internal stakeholders, ensuring alignment between open-source contributions and business priorities

• Partnering with the Head of Open-Source Development to shape strategy, evaluate opportunities and prioritise work across Research, Machine Learning and Platform Engineering areas

• Building trusted relationships across engineering, research, architecture and leadership teams

• Identifying emerging technical needs and translating them into actionable open-source initiatives

• Acting as a primary point of contact for new requests, managing requirements and stakeholder expectations

• Evaluating technologies, proof of concepts and research tooling to assess suitability and adoption opportunities

• Driving internal adoption of open-source contributions, gathering feedback and coordinating improvements

• Promoting awareness of OSPO’s capabilities, impact and strategic value across the firm

• Supporting governance, prioritisation, and portfolio management across the OSPO

• Maintaining clear documentation, roadmaps and reporting to measure and communicate programme impact

Who are we looking for?

The ideal candidate will have the following skills and experience:

• Strong engineering background across distributed systems, data platforms, machine learning, HPC infrastructure, developer tooling, or related domains

• Experience reviewing or writing production-quality code, ideally in Python, C++, Java, Rust or Go

• Ability to navigate complex codebases and understand architecture-level trade-offs

• Excellent communication skills with ability to engage and influence stakeholders at all levels

• Strong relationship-building skills and the ability to work effectively across technical and non-technical groups

• Proven ability to operate in complex environments, influence without authority and manage competing priorities

• Pragmatic and resilient approach with strong judgement and a passion for open source

Nice to have:

• Experience contributing to open-source projects or communities

• Experience in quantitative research, HPC, machine learning or regulated environments

Why you should apply

• Highly competitive compensation plus annual discretionary bonus

• Lunch provided (viaJust Eat for Business) and dedicated barista bar

• 30 days’ annual leave

• 9% company pension contributions

• Informal dress code and excellent work/life balance

• Comprehensive healthcare and life assurance

• Cycle-to-work scheme

• Monthly company events