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Fidelity Investments

Quant Developer

London
Posted 5 days ago
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The Role

We are seeking a Quantitative Developer with strong engineering skills to join our London-based team. This role is ideal for a technically strong developer who combines deep experience in highly scalable trading systems with the ability to adapt and extend back testing systems for DeFi as well as operate on cloud infrastructure.

You will work closely with quant researchers and analysts to build research infrastructure, that can design, test, and deploy strategies capitalizing on decentralized markets.

Key Responsibilities

System Adaptation

  • Work with existing research frameworks to integrate DeFi-specific functionality
  • Extend and optimize components for on-chain analysis, risk management, and simulated connectivity to decentralized venues
  • Implement enhancements in Rust and Python for performance, reliability, and security

Monitoring & Troubleshooting

  • Develop metrics and dashboards to monitor strategy performance and market conditions
  • Troubleshoot unexpected behaviors and refine infrastructure based on feedback
  • Continuously adapt to changing protocols and smart contract mechanics to adapt to evolving DeFi ecosystems

Reasons to use Rodeo

I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

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Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.

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Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

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Strong

Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

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Cross-Team Collaboration

  • Work closely with the Head of Quant Strategies to align our infrastructure development with business goals
  • Present findings and system metrics to team and internal stakeholders
  • Contribute to thought leadership and internal knowledge sharing on programming techniques, new software innovations and AI

The Expertise and Skills You Bring

Technical Expertise

  • Strong proficiency in a systems language such as C++/Rust etc.
  • Advanced skills in Python, relational databases and SQL/Snowflake
  • Experience working with trading platforms

Analytical & Research Skills

  • Familiarity with back testing and designing statistically sound experiments
  • Structured approach to hypothesis generation, model building, and validation
  • Strong understanding of portfolio construction, risk modeling, and financial techniques

Professional Experience

  • Typically, 9+ years of experience in quantitative development/research
  • Experience working with modern cloud technologies (e.g. AWS)
  • Advanced degree (MSc or PhD) in a quantitative discipline (e.g., Mathematics, Computer Science, Physics, Statistics)
  • Experience working in a collaborative, cross-functional environment
  • Prior experience adapting or extending trading systems

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Preferred Qualifications

  • 2+ years of experience with DeFi protocols, protocol mechanics, and smart contracts
  • Familiarity with MEV, gas optimization, and Layer 2 scaling solutions
  • Experience with trading infrastructure and execution in decentralized markets
  • Demonstrated initiative in research, strategy development, and process improvement

The Team

Fidelity Digital Assets® is dedicated to building products and services that help institutions adopt digital assets and innovate within the increasingly digital world of finance. Fidelity Investments began researching blockchain technology and digital assets solutions in 2014, and years of research and development have provided us with the deep expertise necessary to build the future of finance.

Come join the Quantitative Strategies team within Fidelity Digital Assets® to help grow our business initiatives within DeFi and contribute to our research and product capabilities using your insights.

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Category: Information Technology

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Skills

Rust
Python
C++
SQL
Snowflake
DeFi
Trading Systems
Cloud Infrastructure
AWS
Backtesting
Risk Management
Portfolio Construction
Smart Contracts
MEV
Gas Optimization
Data Analysis

Location

London, England, United Kingdom

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