Entry-level software engineers build scalable infrastructure, trading systems, cloud environments, data ingestion platforms, testing and deployment tools, and internal productivity systems. Responsibilities vary by engineering team and include reliability, high-performance systems, distributed storage, and large-scale data processing. Candidates need a technical or quantitative degree, programming experience, large-scale systems experience, strong analytical and interpersonal skills, and enthusiasm for building quality software.
Position Summary
Two Sigma is a leading quantitative investment management and trading firm. The company applies a scientific approach to investing, combining cutting-edge technology, artificial intelligence, data science, and quantitative research with rigorous human inquiry to capitalize on market opportunities and deliver alpha for investors.
Our team of engineers, quantitative researchers and data scientists looks beyond the traditional to test hypotheses and develop creative solutions to some of the world's most complex economic problems.
Technology drives our business - it's our main advantage - and software engineers play a pivotal role.
Software engineers at Two Sigma focus on analysis, experimentation, design, and elegant implementation. They build the scalable tools the organization needs to explore data's possibilities and act on our findings - to mine the past and attempt to predict the future.
As a Two Sigma engineer, you'll champion the rigorous, collaborative, scientific approach that allows us to meet business needs. You'll join a forward-looking, future-reaching organization to build software that will scale with the company. You'll have opportunities to learn from others and share your expertise.
We attract engineers with a real passion for data. We seek individuals who want to build for today and invent for tomorrow. We value curiosity and insight, balanced with pragmatism and practicality. We recognize both the small steps, as well as the broad vision.
As a student, you will be hired into a general Software Engineering role and matched to a specific team 2-3 months before you start.
Depending on the Engineering area you join, you will take on the following responsibilities:
Wondering if this is the right role for you? You should possess the following qualifications:
Two Sigma is a leading quantitative investment management and trading firm. The company applies a scientific approach to investing, combining cutting-edge technology, artificial intelligence, data science, and quantitative research with rigorous human inquiry to capitalize on market opportunities and deliver alpha for investors.
Our team of engineers, quantitative researchers and data scientists looks beyond the traditional to test hypotheses and develop creative solutions to some of the world's most complex economic problems.
Technology drives our business - it's our main advantage - and software engineers play a pivotal role.
Software engineers at Two Sigma focus on analysis, experimentation, design, and elegant implementation. They build the scalable tools the organization needs to explore data's possibilities and act on our findings - to mine the past and attempt to predict the future.
As a Two Sigma engineer, you'll champion the rigorous, collaborative, scientific approach that allows us to meet business needs. You'll join a forward-looking, future-reaching organization to build software that will scale with the company. You'll have opportunities to learn from others and share your expertise.
We attract engineers with a real passion for data. We seek individuals who want to build for today and invent for tomorrow. We value curiosity and insight, balanced with pragmatism and practicality. We recognize both the small steps, as well as the broad vision.
As a student, you will be hired into a general Software Engineering role and matched to a specific team 2-3 months before you start.
Depending on the Engineering area you join, you will take on the following responsibilities:
- Building the underlying infrastructure that virtually every other engineering team at Two Sigma uses, such as our distributed storage and public and private cloud environments.
- Ensuring the reliability of "mission critical" products and systems vital to Two Sigma, such as our main trading system.
- Using a suite of open source and proprietary tools to build the environments that test and deploy our quantitative strategies, also known as models.
- Building and maintaining the low-latency, high-performance infrastructure and systems responsible for executing trades.
- Building and scaling the infrastructure used to ingest data from 10,000+ sources daily.
- Partnering with our Corporate teams to develop tools, systems and products responsible for increasing productivity and efficiency across the organization.
Wondering if this is the right role for you? You should possess the following qualifications:
- A Bachelor's, Master's, or PhD degree in a technical or quantitative field.
- Experience with Java, C, C++, Python, Ruby, Perl, or other languages that target the JVM.
- Experience in large-scale systems.
- Exceptional programming skills.
- Strong analytical, organizational, and interpersonal skills.
- A passion of building quality software.
- We are open-minded in our search for critical thinkers who are passionate about technology. While we analyze the data-rich domain of finance, financial experience is not a requirement.
Two Sigma London, England Office
7 Devonshire Square, London, England, United Kingdom, EC2M 4YA
Similar Jobs at Two Sigma
Fintech • Software • Financial Services
Lead Risk Engineering in London by managing and developing a high-caliber engineering team, setting technical standards, defining platform strategy, and overseeing execution. Own risk platforms across the trading lifecycle, from data and forecasts through execution and PnL. Partner with risk analysts, traders, portfolio managers, and engineering teams to translate complex requirements into highly available solutions. Remain hands-on with architecture and development while managing stakeholders, roadmaps, delivery, performance, and team growth.
Top Skills:
Ai Coding AgentsJavaLarge Language Models (Llms)PythonRelational DatabasesSoftware AgentsWeb Services
Fintech • Software • Financial Services
Develop and maintain reliable software systems, automation, monitoring, observability, and production data pipelines. Improve scalability, availability, operability, and deployment processes while collaborating with software engineering teams on architecture and performance. Operate production-critical environments, follow change-management controls, enhance automated testing, and participate in support rotations for research and data pipelines.
Top Skills:
JavaScriptLinuxPythonRubyUnix
Fintech • Software • Financial Services
Develop, operate, and maintain low-latency infrastructure that processes and redistributes market data and orders in live production. Partner with trading desks, exchanges, counterparties, and data providers to minimize outages, support trading, and ensure regulatory compliance. Responsibilities include production support, infrastructure reliability, performance analysis, and systems operation across multiple asset classes.
Top Skills:
C++JavaKernel BypassLinuxNetworkingPython
What you need to know about the London Tech Scene
London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.
