

Work with us.
Join GSA and become part of a leading quant trading firm where innovation and performance drive us forward. We're looking for individuals with the expertise and determination to contribute to our continued success.
Discover the opportunity to grow with us and make a tangible impact in the world of finance.

Career opportunities.
London
Business Operations - General Application
Business operations at GSA encompass essential functions that drive operational efficiency, financial accuracy, and regulatory adherence. They include the management of trade execution, risk assessment, financial record-keeping, strategic budgeting, talent optimisation, and compliance with legal standards. This collective framework supports the firm's strategic goals and ensures a robust, compliant, and high-performing trading environment.
Regardless of your level of experience, if you’re talented in the areas of Compliance/Legal, Finance, HR, Office Management, Operations, Procurement, Recruitment or Trading Operations and wish to explore possibilities at GSA then we’re always open to making connections.
Unsure of where you might fit in? No problem. Send us your credentials regardless and it will be evaluated by one of the recruitment team here so we can check for you.
The Person
Our people are diverse, though we strive toward a few common traits:
- Conscientiousness: Your job really matters to us. We dig into issues and diagnose their cause, working effectively with colleagues to find immediate fixes and whenever possible, follow up with up with strategic solutions. You understand the value and importance of your role and are diligent in undertaking your responsibilities.
- Proactive and motivated. You thrive best when allowed to take initiative and possess a self-starter approach. You take pride in your work and look to perform to the best of your abilities.
- Interpersonal, collaborative and an effective communicator. Working at GSA requires effective collaboration with a range of colleagues, stakeholders and counterparties.
- Logical, numerate and possess a strong financial intuition: You seek to build upon strong critical thinking and analysis abilities with a deep understanding of your subject area and recognise the importance of context. You have a genuine interest in what we do and are naturally curious to build your understanding across multiple avenues of our business, how we operate and of the people working alongside you.
- Aptitude and adaptability. You strive to pick up and understand new concepts, systems, and strategies quickly.
- Highly organised and able to prioritise effectively. You enjoy crafting and working toward goals. You can efficiently collate, track, continually prioritise and proactively status report whilst managing the simultaneous resolution of many, often time-sensitive, issues.
Academic Requirements:
- We often find a good degree within an analytical field to be advantageous, but we are much more inclined to weight our evaluation toward your experience and career achievements when present.
London
Finance - Accounts Payable
In quantitative trading, operating with precision, speed and efficiency are paramount to success. Our finance function plays a critical part in the day-to-day operations of GSA ensuring (among many other things!):
- Cost-saving opportunities are recognised, budgets accurately allocated, and resources used efficiently to maximise our profitability.
- Timely payments are made to vendors, data providers and counterparties to maintain our access to high quality data, technology, and trading infrastructure.
- Adherence to financial regulations and reporting standards to safeguard the firm’s reputation and reduce risk of penalties.
- Produce accurate financial data and insights to mitigate financial risks and ensure the firm’s financial stability.
- Provide insights into the firm’s financial health to enable informed decisions on investments, resource allocation and growth strategies.
We’re seeking individuals who recognise the importance of the function and want to actively contribute to the team's success.
The Role
Accounts Payable
Your primary objective will be to oversee and execute accounts payable processes with precision and efficiency. This role involves managing a variety of critical tasks under tight deadlines, requiring you to take ownership of key responsibilities that underpin the Finance function. You will also proactively seek to refine and optimise workflows to enhance efficiency and look, in time, to own and drive the function within the team. The environment is fast-paced, and the team is dynamic, bringing together a diverse range of skills and perspectives.
You’ll play a vital role in safeguarding the firm’s financial health and operational efficiency, ensuring seamless payment operations, and directly supporting our ability to innovate and excel.
Typical day-to-day duties and responsibilities:
- Accounts Payable
- Accurately input and code purchase orders and invoices into the purchase order system, ensuring timely processing to maintain operational efficiency.
- Execute supplier payments with precision, safeguarding the firm’s financial integrity.
- Build and maintain strong supplier relationships, addressing queries promptly to uphold trust and reliability.
- Enforce, maintain, and enhance procurement controls, ensuring compliance and continuous improvement.
- Collaborate effectively with internal procurement teams to streamline processes and achieve shared goals.
- Conduct aged creditor analysis to provide actionable insights into payment cycles.
- Perform supplier statement reconciliations to ensure accuracy and accountability.
- Process employee expenses with diligence, ensuring adherence to company policies.
- Cash Management:
- Perform weekly bank reconciliations to ensure accurate cash flow tracking.
- Post cash entries into the accounting system with precision, maintaining the integrity of financial records.
- Monitor cash balances to support informed decision-making and operational readiness.
- Reporting:
- Produce detailed and insightful reports for Management, providing clarity and actionable data on accounts payable and cash management activities.
- Ad Hoc Work:
- Collaborate with and support other team members, contributing to the overall success and efficiency of the Finance team.
The Person
- Proactive and motivated. You’ll have a high level of initiative and a self-starter approach. You care about your work being executed to the highest of standards.
- Logical, numerate and detail oriented: You possess strong critical thinking, are very comfortable with numbers and possess a deep interest in working with data and recognising the importance of operating with precision.
- Interpersonal, collaborative and an effective communicator. The work necessitates frequent collaboration with a range of stakeholders and counterparties both technical and non-technical.
- Conscientious: Your job really matters to us. You understand the value and importance of your role and are diligent in your execution of this responsibility.
The Skills
- Prior experience within an accounting or finance function preferable, but those with a demonstrable desire to build a career in this area still equally appealing.
- Proficiency in Excel (including macros and pivot tables).
- Demonstrable interest in finance and/or quant trading with a genuine interest in the challenges presented within the industry.
Academic Requirements:
- A good degree in finance or a numerate discipline. Otherwise within an analytical field.
London
Infrastructure Assistant
The role is a technical assistant to the IT Infrastructure team, primarily supporting the helpdesk within the team. We are looking for someone who has solid basic IT skills (PC setup, plugging in and setting up workstations, connecting network cables, debugging physical PC issues) and experience with Windows and Linux. Extensive helpdesk or support experience is not required. A keen home PC user who is looking to learn new skills would be ideal.
London
IT Engineer
London
Quantitative Researcher
New York
Quantitative Researcher
London, New York
Quantitative Researcher - Intern
London
Software Developer
London
Software Developer - Intern
Scroll for more information on the application process.

How we hire.
// Not just a test. A quest for the best.
Fill out an application
You'll find a list of open opportunities above. If you find one you like the sound of, you can start the process by filling out the application form. It's a chance to describe your skills, accomplishments, and the unique qualities you bring to the table.
Fill out an application
You'll find a list of open opportunities above. If you find one you like the sound of, you can start the process by filling out the application form. It's a chance to describe your skills, accomplishments, and the unique qualities you bring to the table.
Phone interview
This is your opportunity to engage with us directly and share your story. Discuss your experiences, how you solve problems, and your fit with our values. It's a chance to convey your enthusiasm and how your expertise aligns with GSA's mission.
Take-home practical
Our take-home challenges are a critical piece of the puzzle. They're designed to assess your technical ability, problem-solving skills, and creativity. You'll be given a task that mirrors the complexities you'd face as part of our team, so we can see how you tackle real-world problems.
Take-home practical
Our take-home challenges are a critical piece of the puzzle. They're designed to assess your technical ability, problem-solving skills, and creativity. You'll be given a task that mirrors the complexities you'd face as part of our team, so we can see how you tackle real-world problems.
On-site interviews
An on-site interview is your chance to engage with potential colleagues and understand the dynamics of our workplace. We're interested in how you integrate with our team and align with our goals.
Final interviews
In the final interviews, we delve into the depths of your expertise and your vision for the future. It's a dialogue with our senior leaders about possibilities, aspirations, and the impact you can have at GSA. Here, we make the crucial decisions about moving forward together.
Final interviews
In the final interviews, we delve into the depths of your expertise and your vision for the future. It's a dialogue with our senior leaders about possibilities, aspirations, and the impact you can have at GSA. Here, we make the crucial decisions about moving forward together.