Software Developer Graduate: September 2027 London

SIG Susquehanna; Greater London; On-site; GBP 30,000 - 42,000; Full time

Job summary

Susquehanna in London is looking for high-potential graduates to join our Software Development Graduate program, starting September 2027. You will work with senior technologists from day one, mentored throughout, and contribute to developing scalable, high-performance trading technology.

You will develop in C#, C++, and Python, focusing on algorithms and data structures, with a strong emphasis on problem solving, curiosity, and effective communication within multidisciplinary teams.

Qualifications

• Graduating in 2027 with a Computer Science, Engineering, Mathematics or Physics degree.
• Strong OO programming skills in C#, C++ and Python; solid grasp of algorithms and data structures.
• Demonstrated problem-solving ability and data-driven thinking.
• Curious, eager to learn, and able to communicate clearly with teammates.

Skills

C#

C++

Python

OO programming

Algorithms & data structures

Problem solving

Communication

Education

STEM degree (CS/Engineering/Math/Physics)

Job description

Overview

Susquehanna is seeking talented graduates to join their growing London office in September 2027.

As a Software Development Graduate at Susquehanna, you will be working with senior technologists from the beginning of your programme who will act as your mentors throughout. Your role will allow you to get involved with the development teams building cutting-edge technologies.

You will be working with Software Developers who have a constant focus on evolving a stable, scalable, optimised environment with minimised risk. Our growing team of analysts, developers, infrastructure engineers and support specialists design, deliver and optimised industry leading technical solutions that can process large amounts of data, ensuring high performance and stability.

What we’re looking for

Technical: You have strong software development skills in any object-oriented language (we use C#, C++ & Python mostly). You also understand algorithms, data structures, and object-oriented design patterns.

Problem Solver: When it comes to solving problems, you use clear and sound reasoning. You’re rational and like to use numbers and data to come up with sensible solutions.

Curious: You’re eager to learn and develop new technologies. You’re inquisitive and creative, questioning the status quo.

Communicator: You enjoy building relationships with those you work closely with. You enjoy sharing ideas, expressing your thoughts, and listening to the views of others.

Ambitious: You constantly set yourself goals in life and give your all to achieve them. You’re not afraid to put in the effort to reach your full potential.

Education: You be graduating in 2027 from a Computer Science, Engineering, Mathematics, Physics or related STEM bachelors or masters degree. Prior experience in finance or trading is not necessary.

What’s in it for you:

Education

Our education and training is industry leading. Getting a “big picture” perspective of our technology is important. You will also join industry lectures to understand trading and delve deeper into the crucial role that technologists play in Susquehanna. We provide a variety of technical classes to get you up to speed on any technologies that will be needed for success in your role. These include C#, C++, Python.

Real Impact

Through a combination of hands‑on and classroom discussion, you will learn how we solve the real technical challenges of building and maintaining the best trading systems. You will learn about our use of leading‑edge hardware and software technologies. With other developers and traders, you will collaborate on live challenges, improvements, and technical issues which are key to the ongoing success of the business.

Culture

Our non-hierarchical culture allows employees of every level to thrive. We are not your typical trading firm – the environment is casual, collaborative and we focus on continuous development, no matter how long you’ve been in Susquehanna.

About Susquehanna

Susquehanna is a global quantitative trading firm powered by scientific rigor, curiosity, and innovation. Our culture is intellectually driven and highly collaborative, bringing together researchers, engineers, and traders to design and deploy impactful strategies in our systematic trading environment. To meet the unique challenges of global markets, Susquehanna applies machine learning and advanced quantitative research to vast datasets in order to uncover actionable insights and build effective strategies. By uniting deep market expertise with cutting‑edge technology, we excel in solving complex problems and pushing boundaries together.

Interview Process

Apply > Technical Screen > Recruiter Interview > Technical Interview > Final Interview > Offer

Note: You must be available to begin in September 2027 to qualify for this role.

Susquehanna is an equal opportunity employer. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruitment process, please contact us.