Hudson River Trading (HRT) is one of the top algorithmic trading companies in the world. Our research cluster is the backbone of our success; it’s where all of our trading strategies are generated.

We use a large, customized research environment with highly advanced CPU and GPU compute, storage, and networking technology. Our team thinks about the entire software stack, from the user-level API to optimizing performance out of low-level caching. We deal with everything from the theoretical, like fair resource scheduling, to the concrete, like optimizing a trader’s new program run-time performance. 

As a distributed compute engineer in a user-facing environment, you’ll develop and improve on technical solutions that make research as easy and efficient as possible. You’ll work everyday with both talented quantitative traders and software engineers across all trading teams.

Responsibilities

• Ensure HRT’s research environment is best in class, with a focus on user workloads
• Maintain and improve resource scheduling, data caching, and job monitoring to make research as easy, fast, and efficient as possible, using both in-house and open source solutions
• Optimize workloads at the user level to speed up user iteration speed
• Tune workloads at the infrastructure level to make them more resource-efficient
• Share metrics and real-time information with users to give insight into workload behavior
• Sit down with users to understand their specific technical needs
• Contribute individually and through leadership and coordination of the above
• Set technical direction for the platform and take holistic ownership of the software infrastructure that supports Algo research

Qualifications

• Bachelor's degree in Computer Science, Computer Engineering, or a related field
• Strong C++ expertise (daily use preferred)
• Python familiarity preferred
• Experience collaborating closely with quantitative researchers and traders to understand their needs
• Great communication capabilities
• Superior design, debugging, and problem solving skills
• Knowledge of UNIX operating systems (we use Linux), system/processor performance, and network communication

The estimated base salary range for this position is 200,000 to 300,000 USD per year (or local equivalent). The base pay offered may vary depending on multiple individualized factors, including location, job-related knowledge, skills, and experience. This role will also be eligible for discretionary performance-based bonuses and a competitive benefits package.

ThinkMarkets is a global online brokerage firm, specializing in multi-asset trading solutions to thousands of clients around the world. With our flagship ThinkTrader platform, we allow our clients to trade the world 24 hours a day. Our mission is to build an AI-first trading platform by providing access to global markets, advanced trading features and thousands of products across multiple geographies so our clients can trade the world. We use the latest technologies to give traders seamless access to our proprietary trading platforms. 

The successful candidate will lead end-to-end marketing for ThinkTrader, driving retail trader acquisition and scalable growth through a hands-on, data-driven approach across performance, marketing technology, customer journeys, audience modelling, and creative generation.  

Key Responsibilities 

Digital Marketing & Growth 

• Define and execute a global acquisition strategy to scale retail trader growth across paid social, paid search, and programmatic. 
• Own performance marketing with clear accountability for CAC, LTV, funnel performance, and return on spend. 
• Lead mobile app growth, from acquisition through to in-app engagement and retention. 

Customer Journeys, Funnel & Audience Strategy 

• Own the full marketing funnel from awareness to funded and active traders, optimising conversion, retention, and lifetime value. 
• Develop and refine customer journeys and audience segmentation to improve targeting, personalisation, and campaign effectiveness. 

Marketing Technology & Data 

• Leverage marketing technology and analytics to drive decision-making, experimentation, and scalable growth. 
• Demonstrate working knowledge of Google Marketing Platform (GMP) including Google Ads, DV360, Campaign Manager, and Google Analytics. 
• Utilise AI tools and automation to enhance performance, efficiency, and campaign execution. 

 Team Leadership & Operational Excellence 

• Build and lead a high-performing, driven marketing team, prioritizing efficiency and leveraging AI tools and automation to maximize output and scalability. 
• Act as the senior marketing stakeholder for ThinkTrader platform, collaborating with Product, Engineering, and Operations teams. 
• Manage and allocate marketing budgets across media and operational matters  

Requirements 

• 5-7+ years of experience marketing a trading platform or fintech product, or strong knowledge of financial market fundamentals.  
• Hands-on experience across performance marketing, growth funnels, attribution, and lifecycle for platforms or mobile apps, with a strong understanding of AI-enabled marketing and agentic workflows 
• A technical foundation is preferred, with a Bachelor’s degree in Engineering, Computer Science, Mathematics, Physics, or another quantitative discipline, combined with strong marketing expertise. 
• Willingness to work hybrid from the Chicago office (approximately 3 days per week in-office). 

As an Institutional Trader at Optiver you will be instrumental in the decision making and execution of our large-order trading strategies through the management of our relationships with brokers and direct counterparties.

We’re looking for a unique blend of communication skills and quantitative ability. The daily interactions you’ll have with our external partners will provide vital market insights; when these are combined with your analytical skills, intuition and close collaboration with our Screen Traders, you’ll be well placed to negotiate the best possible prices at speed. For many of the products we trade, this approach allows us to continuously operate at the forefront of the market.

What you’ll do

• Identify and capitalize on market opportunities, both independently and within the trading team;
• Make split-second trading decisions that can instantly impact profitability;
• Constantly aim to identify new product/market opportunities to diversify our strategies and maximise success;
• Improve execution and access to volume;
• Network internally with other Institutional Traders and Screen Traders to ensure you’re acting on well-informed decisions;
• Represent Optiver’s quotes and execute orders with many of the world’s largest trading desks via phone, IM and Bloomberg;
• Negotiate prices with brokers and other relevant parties;
• Help improve our systems and tools in order to capture data in the most effective way;
• Understand and apply knowledge of the exchanges’ rules/regulations and market structures in which we engage.

Who you are

• High EQ and strong interpersonal skills, with the ability to positively influence outcomes;
• Excellent verbal and written communication skills; English fluency is a requirement;
• 2-5 years of professional working experience; Previous experience in a similar seat may be beneficial but there’s also a lot of raw skills that can be learnt from other fields and applied to this type of dynamic role.
• Minimum of a BSc in a quantitative or technical field;
• Ability to work well under pressure, thriving when making fast decisions and handling a high volume of trades, often simultaneously;
• Entrepreneurial mindset;
• Detail oriented;
• Competitive by nature;

If you're interested in learning more, have a look at our 'Inside Optiver's Institutional Trading Team' blog!

Who we are 

At Optiver, our mission is to constantly improve the market by injecting liquidity, providing accurate pricing, increasing transparency and acting as a stabilizing force no matter the market conditions. With a focus on continuous improvement, we participate in the safeguarding of healthy and efficient markets for everyone who participates. As one of the largest market making institutions, we are a trusted partner of 70+ exchanges across the globe.

What you’ll get 

You’ll join a culture of collaboration and excellence, where you’ll be surrounded by curious thinkers and creative problem solvers. Motivated by a passion for continuous improvement, you’ll thrive in a supportive, high-performing environment alongside talented colleagues, working collectively to tackle the toughest problems in the financial markets.

Your onboarding will start with an intensive three-month training program alongside other new employees from other departments within the organisation. The first month will be classroom based, bringing you up to speed with the theoretical basics of pricing and the workings of the wider organisation. In the second month you will experience a live simulation trading environment, before putting your knowledge into practice by contributing to your own project, meaning you will be delivering business impact right from the start. We believe hands-on experience is the best way to learn and that’s exactly what we provide.

In addition, you’ll receive:

• A performance-based bonus structure, enabling all of our employees to benefit from our global profit pool.
• 27 paid vacation days plus all UK public holidays.
• Daily breakfast and lunch, along with support on commuting expenses.
• Private medical insurance, pension scheme, and ClassPass fitness membership.
• Training and continuous learning opportunities, including access to conferences and tech events.
• International transfer opportunities for global career growth.

How to apply

Apply directly via the form below. If you have any questions feel free to contact our Recruitment team via our recruitment inquiry form.

Please note:

• We do not require any assistance from third-parties including agencies in the recruitment of this role
• We cannot accept applications via email

Diversity statement

Optiver is committed to diversity and inclusion.

About the Position

At Jane Street, quantitative traders identify market signals, analyze and execute strategies, construct quantitative models, conduct statistical analyses, build algorithmic trading systems, manage risk, develop new businesses, and more.

Our trading desks are central to our collaborative and cooperative office environment. You can expect to work side by side with experienced traders who are committed to teaching, guiding, and supporting our newest hires. Through hands-on, interactive training, you’ll acquire significant trading responsibilities within weeks to months of being on the desk. In parallel, you will participate in our robust year-long firmwide educational curriculum.

At Jane Street, the lines between research, technology, and trading are intentionally blurry. As our strategies grow more sophisticated, close collaboration is essential for continuing to push the boundaries of what’s possible. We work with petabytes of data, a computing cluster with hundreds of thousands of cores, and a growing GPU cluster containing thousands of high-end GPUs. We don’t believe in “one-size-fits-all” modeling solutions; we are open to and excited about applying all different types of statistical and ML techniques, from linear models to deep learning, depending on what best fits a given problem.

About You

If you’ve never thought about a career in finance, you’re in good company. Many of us were in the same position before working here. We’re looking for smart people who enjoy solving interesting problems, and we’re more interested in how you think and learn than what you currently know. You should be:

• A critical thinker with a strong quantitative mind
• A collaborative problem-solver who enjoys working on a team
• Proactive, reliable, and courteous with strong organizational and communication skills
• Eager to ask questions, admit mistakes, and learn new things
• Fluent in English

A profitable trading strategy is only as strong as the technology it runs on, and we consider ourselves as much a technology company as a trading firm. General programming experience is a plus, but knowing a particular programming language is not required.

If you’d like to learn more, you can read about our interview process and meet some of the team. 

If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.

About the Position

Our trading is based on our own proprietary models and on busy days we engage in over a million trades. Traders work in teams to seek out and trade on pricing inefficiencies, develop models, manage risk, investigate new products, and push into new business areas. Experienced Traders teach and oversee the less-experienced. New Traders serve as assistants while they learn the ropes, getting increasing responsibility as they demonstrate their ability to handle it.

Technology is at the core of how we approach trading, and we consider ourselves as much a technology company as a trading firm. We use OCaml, a statically-typed functional programming language, as our primary development language, and have the largest team of OCaml Engineers in any industrial setting.

About You

We are looking for people who have a strong quantitative mind and enjoy working collaboratively to solve challenging problems in a practical setting. Prior knowledge of finance or economics is not expected or required. Experience with particular programming languages is also not required, although generally being comfortable programming in your language of choice is a plus. Fluency in English required.

If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.

About the Position

We are looking for a single stock options trader based in London to work closely with our local and global equity options teams and help manage our European equity options book. In this role you’ll have responsibility for running our systematic and more discretionary strategies, whilst looking for opportunities to grow them.

A strong candidate will have an interest in the whole lifecycle of a trade from understanding the signal and idea generation, through trade execution and then book and risk management. Partnering with sell-side counterparts for risk lay-off is a core business for the team, and we are looking for someone who can manage these relationships strategically. 

Single stock vol trading sits at the heart of our European options operation, interfacing closely with the exotics and index options teams. We have a culture of strong collaboration both across teams and across regions. Your working relationships, trader intuition, and ability to analyse special situations will add value to our team. 

About You

• 3+ years of experience in European single stock options or similar
• Familiarity with the inter-dealer broker market and transacting bilaterally
• Able to think critically and implement new ideas
• Strong quantitative skills in understanding options pricing and risk management
• Open to learning new techniques
• Strong communicator with excellent planning, analytical, and people skills; comfortable coordinating across time zones
• Reliable and flexible team player with a positive attitude
• Detail-oriented, organised, and thorough, with a desire for continuous improvement
• Willingness to spend multiple weeks a year traveling to New York and Hong Kong is a plus
• Fluency in English required

If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com. 

About the Position

We are looking for a Dividend Trader based in London to work closely with our global options team and help build out our European dividend trading capabilities. In this role, you'll trade index and single stock dividend futures, manage dividend exposure arising from our broader options portfolio, and identify opportunities to grow our presence in this space.

Dividend trading at Jane Street interfaces closely with our single stock and index options businesses. You'll collaborate with colleagues across products and regions, contributing to idea generation, risk management, and strategic positioning. We are actively expanding our dividend trading capabilities and are looking for someone who brings product expertise and market intuition to help us develop this area. Your understanding of the dividend landscape, ability to spot relative value, and willingness to push us in new directions will be instrumental in our growth.

Our Trading team is full of highly motivated professionals who have created a culture of trust, respect, and collaboration. Your working relationships, trader intuition, and ability to analyse special situations will add value to our team.

About You

• 3+ years of experience trading dividends at a bank or trading firm
• Strong understanding of index and single stock dividend futures markets
• Able to think critically and implement new ideas
• Strong quantitative skills in pricing and risk management
• Programming skills in Python preferred
• Experienced teaching others and open to learning new techniques
• Strong communicator with excellent planning, analytical, and people skills; comfortable coordinating across time zones
• Reliable and flexible team player with a positive attitude
• Detail-oriented, organised, and thorough, with a desire for continuous improvement
• Willingness to spend multiple weeks a year traveling to New York and Hong Kong is a plus
• Fluency in English required 

If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com

About the Position

We are looking for an experienced natural gas analyst/trader to help our team develop our existing fundamental-driven trading. The ideal candidate will be capable of providing deep insight into the European and/or Global gas market, driving and owning modelling and associated trading strategy. The role sits within the global Commodity team, which covers a wide range of products and strategy types within Jane Street’s core quantitative trading strategy.

The right person will have a strong fundamental background in natural gas and enjoy working in a fast-paced and collaborative environment.

About You

• 3+ years of professional experience in analyzing European natural gas fundamentals
• Exposure to building part or all of the Global LNG S&D balance is a plus
• Strong analytical capabilities
• Experience with oil or gas physical markets is beneficial
• Proficiency in statistics
• Coding skills are a plus
• Fluency in English required

If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.

About the Position

We are looking for an Exotic Options Trader based in London to work closely with our local and global options teams. In this role, you'll price complex derivatives, identify trading opportunities, and strategically manage relationships with our sell-side counterparties.

Exotic options trading at Jane Street sits at the intersection of our single stock and index options businesses. You'll collaborate closely with colleagues across products and regions, contributing to idea generation, model development, and strategic positioning. Partnering with sell-side counterparts is a core part of the business, and we are looking for someone who can cultivate these relationships and help us access flow we might otherwise miss.

We have a culture of strong collaboration both across teams and across regions, and are actively expanding our exotic options trading capabilities. We're looking for someone who brings deep product knowledge and market intuition to the team. Your understanding of complex payoffs, ability to price quickly and accurately, and willingness to push us in new directions will be instrumental in our continued growth.

Our Trading team is full of highly motivated professionals who have created a culture of trust, respect, and collaboration. Your working relationships, trader intuition, and ability to analyse special situations will add value to our team.

About You

• 3-6 years of experience in exotic options trading
• Strong quantitative skills in pricing complex derivatives
• Familiarity with the sell-side landscape and a track record of building productive counterparty relationships
• Able to think critically and implement new ideas
• Programming skills in Python preferred
• Experienced teaching others and open to learning new techniques
• Strong communicator with excellent planning, analytical, and people skills; comfortable coordinating across time zones
• Reliable and flexible team player with a positive attitude
• Detail-oriented, organised, and thorough, with a desire for continuous improvement
• Willingness to spend multiple weeks a year traveling to New York and Hong Kong is a plus
• Fluency in English required

If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com

About the Position

We're looking for an experienced Natural Gas Analyst to help our team research new strategies that incorporate fundamental views into our European natural gas trading. Our team has an open mandate to think about the existing successful trading that we do, and find new ways to marry fundamental analytics with Jane Street’s core quantitative trading strategy.  

The right person will have a strong fundamental background in natural gas and enjoy working in a fast-paced and collaborative environment.

About You

• 3+ years of professional experience in analyzing European natural gas fundamentals
• Strong analytical capabilities
• Knowledge of oil or gas physical/financial markets
• Proficiency in statistics
• Coding skills are a plus
• Fluency in English required

ThinkMarkets is a global online brokerage firm, specializing in multi-asset trading solutions to thousands of clients around the world. With our flagship ThinkTrader platform, we enable clients to trade global markets 24/7. Our mission is to build an AI-first trading platform by providing access to global markets, advanced trading features and thousands of products across multiple geographies so our clients can trade the world. We use the latest technologies to give traders seamless access to our proprietary trading platforms. 

We are seeking a Marketing Intern to join our global team in London. This is a role for an aspiring marketer who believes that the future of marketing is AI-augmented. You'll support retail trader acquisition, learn performance marketing, and work with AI tools to scale output. 

This is an entry-level role suited to a motivated, data-curious person with an interest in marketing technology and AI-driven creative. 

Key Responsibilities 

• Support acquisition campaigns across paid media, SEM, and mobile app marketing for FX/CFD trading products
• Analyse performance data across the funnel, identifying drop-offs and optimisation opportunities
• Work with CAC, LTV, conversion rates, and campaign-level metrics to improve performance
• Learn and apply tools within the Google Marketing Platform (Google Ads, GA4)
• Contribute to mobile app growth initiatives, including ASO and app install campaigns for trading audiences 
• Use AI tools to generate, test, and iterate on ad creatives and campaign structures
• Contribute to growth initiatives across landing pages, messaging, and user journeys
• Contribute to campaign reporting, dashboards, and performance insights

Requirements:  

• Recently completed (or in final year of) a degree in Marketing, Business, Computer Science, or a quantitative field
• Strong analytical mindset, comfortable working with numbers, data, and maths/statistics
• Demonstrated interest in performance marketing, growth, or campaign-based roles
• Familiarity with platforms such as Google Ads, Meta, TikTok, or similar (academic or personal projects is fine)
• Exposure to AI tools (ChatGPT, Claude, automation tools, etc.) and curiosity to apply them in marketing
• Strong interest in fintech, trading platforms, or financial markets (FX, CFDs, crypto, or equities exposure is a plus)
• Proactive, self-starter mindset with the ability to take ownership of tasks
• Available to start immediately or on short notice

Internship Details 

• Duration: 6 months (extendable based on performance) 
• Type: Full-time, stipend-based 
• Location: London office 
• Potential: High-performing interns may be considered for full-time roles

In Superbet, the Quant team is responsible for developing the models and tools required for trading a wide range of sports. We aim to provide the best betting experience to our current customers and those we will acquire during our expansion across the globe. This will mean producing prices for the full range of markets that our customers expect, same-game accumulators, 100% betting availability, and 100% cash out. We see the Quant team as a major driver within this process and want to talk to people who believe they could help us become one of the leading betting brands worldwide.

As a Senior Quant, we would like you to play a big role in driving this process. Use your industry experience to produce Player Prop prices, solve the related contingencies required for same-game accumulators, maximise uptime and bring ideas about products and best-in-class modelling methodologies with you.

We are looking for someone who:

• Has experience delivering in-house models within the betting industry
• Can help us produce market-leading bet builder / same game acca solutions across multiple sports
• Would like to guide proprietary modelling of non-core markets
• Has experience dealing with large data sets and feeds
• Wants to become a key part of a fast-growing Quant team and company
• Has excellent communication skills, able to understand and translate complex technical information to others
• Feels comfortable collaborating with various teams
• Has a strong work ethic with a drive for completing high-quality work

Bonus points if you have:

• Experience in American Sports modelling
• Bet Builder / Same game accumulator modelling
• Experience in eSports modelling
• Golang experience

What you'll be doing:

• Develop mathematical and statistical models which will price the core and derivative markets for those Sports
• Produce related contingency modelling solutions
• Provide performance analysis through backtesting and optimizing model output
• Collect and analyse market data in order to aid model development
• Create and price new products to supplement existing markets/sports
• Build trader tooling in order to maximize the efficiency of the trading operation
• Collaborate with engineering resources to enable seamless integration of any provided solutions

Join Geneva Trading's visionary approach in marrying cutting-edge technology with expert trading acumen. Our proprietary hardware and software teams, along with our own co-located infrastructure, provide you with an unparalleled electronic edge over the competition. This platform empowers you to excel in a highly competitive global trading landscape, especially in oil commodities like Crude, Fuel, Distillates, Jet, Gasoline, Naphtha, Propane, NGL, and LPG.

We are actively seeking a seasoned trader in OTC oil commodities to spearhead our rapidly expanding operations. The role calls for not only proven expertise in trading Swaps, Derivatives, and Cleared products on platforms like ICE and CME but also robust risk management capabilities and exemplary leadership skills.

Key Responsibilities:

• Recruit, oversee, and mentor a team of traders in energy markets, promoting a culture of high performance.
• Rigorously identify and manage trading risks, ensuring strict adherence to both company and regulatory guidelines.
• Develop and execute innovative trading strategies in alignment with market dynamics.
• Monitor and manage financial performance, setting and achieving profit targets.
• Serve as the primary liaison with both internal and external parties.
• Ensure that all trading activities meet applicable laws and company policies.
• Stay updated on market trends and regulatory changes, adjusting trading strategies as necessary.

What You'll Need:

• A bachelor’s degree in a field directly relevant to trading activities.
• Substantive OTC trading experience, with a focus on risk management.
• Deep understanding of oil commodities and their derivatives, including Swaps, Cleared products, and platforms like ICE and CME.
• Familiarity with proprietary trading systems.
• Ability to develop and execute strategies based on in-depth market analysis.

#LI-DNI.

We're building out a trading initiative in London, with a growing focus on listed commodities options. This expansion is supported by a mix of internal talent and experienced external hires. With a collaborative and entrepreneurial culture, the team offers a unique opportunity to help shape and scale a new desk from an early stage.

The group combines deep expertise with broad trading experience and values innovation, ownership, and cross-functional collaboration. As the desk continues to grow, there will be increasing opportunities to take on broader responsibilities and contribute meaningfully to its success.

 Your Core Responsibilities

• Manage broker relationships in the Commodities team
  Be able to take lots of responsibility and ownership early in your time here to drive the strategy forward.
• Closely collaborating and effectively communicate with Vol and Screen traders to manage risk portfolios
• Leverage an entrepreneurial mindset to identify and research new trading opportunities
• Perform trades analysis to improve trading

Your skills and experience:

• 2+ years of experience as an Execution/Broker Trader
• BS, MS preferably in business, economics or STEM
• You have a quantitative and strategic mindset and a healthy appetite for risk
• Strong technical skills in Statistics and Python
• You have a proven ability to act and make decisions in a fast-paced and competitive environment
• You are analytical, passionate about reflecting on past trades, and always seeking to do better
• Strong communication and teamwork abilities

We're building out a trading initiative in London, with a growing focus on listed commodities options. This expansion is supported by a mix of internal talent and experienced external hires. With a collaborative and entrepreneurial culture, the team offers a unique opportunity to help shape and scale a new desk from an early stage.

The group combines deep expertise with broad trading experience and values innovation, ownership, and cross-functional collaboration. As the desk continues to grow, there will be increasing opportunities to take on broader responsibilities and contribute meaningfully to its success.

 Your Core Responsibilities

• Maximize revenue by identifying and monetizing short- and long-term mispricing’s, as well as managing the resulting positions.
• Be able to take lots of responsibility and ownership early in your time here to drive the strategy forward.
• Managing risk and developing market making strategies
• You will have lots of responsibility and ownership early on to drive strategies forward and be successful
• IMC is highly collaborative between traders, quants, and developers so the scope of responsibility is fairly fluid involving a mixture of data-driven analysis, quantitative modelling and algorithm development

Your skills and experience:

• 3+ years’ experience in Commodities markets
• BS, MS, or PhD, preferably in STEM
• You have a quantitative and strategic mindset and a healthy appetite for risk
• Strong technical skills in Statistics and Python
• You have a proven ability to act and make decisions in a fast-paced and competitive environment
• You are analytical, passionate about reflecting on past trades, and always seeking to do better
• Experience with managing risk and developing market making strategies
• Product experience is preferred
• Strong communication and teamwork abilities