At a Glance
- Tasks: Join our middle-office team to develop Python tools for trading systems and data analysis.
- Company: LMAX, a leading financial technology firm with a collaborative environment.
- Benefits: Enjoy 25 days holiday, private medical coverage, and wellness programs.
- Other info: Dynamic role with opportunities for learning and career growth.
- Why this job: Make an impact in finance by building high-performance software with cutting-edge tech.
- Qualifications: Experience in Python development and automated testing is essential.
The predicted salary is between 56700 - 69300 £ per year.
- Description
- Overview
LMAX is looking for a Python developer to join our middle-office team.
This team works closely with the infrastructure, research and treasury teams.
In this position you can expect to take a significant role in the development of our trade reconciliation, back-testing framework and trading monitoring.
You will be working with the team to design and implement our trading system with a predominant focus on data engineering.
We are looking for developers who are confident in their ability to develop software, both with others and on their own.
A finance or trading background is not required.
What you will be working on
Our infrastructure team works in C++ and our research team works in Python for analysis and automation.
This role sits within the middle-office team, working primarily in Python.
You'll be collaborating with both teams- supporting research with data analysis and working alongside the infrastructure team when needed.
You'll be building Python tools and services that work with large volumes of financial data, used by teams across the business for analysis and reporting.
This brings real performance challenges around throughput.
You can expect to focus more on software performance than at other organisations, while still striving for clean, maintainable code.
Testing
We rely heavily on validating our system using our extensive test suites.
We test at all levels of our system from unit testing to full end-to-end tests in which the entire system is launched and tested in a simulated environment.
All tests are run every 15 minutes on our CI to give us a fast and reliable feedback cycle.
There is no waiting for overnight test suites here.
As a developer at LMAX you will be expected to help maintain our test framework so that we can continue to develop high quality code at speed.
Responsibilities
- Produce clear, well-structured and fully tested Python code
- Focus on performance and throughput
- Use pair programming to increase the spread of knowledge and avoid siloing
- Continuously design and implement new features that improve the safety, performance and usability of our software
Requirements
Essential Skills / Experience
- Python development, (Numpy/Pandas/SQL)
- Automated Python Testing
- Ability to understand business requirements and develop systems to meet them
- Ability to design well documented, simple and elegant systems that are easily maintainable
- Ability to work independently and with little guidance
Desirable Skills / Experience
- Test driven development, with experience in testing at different levels of the system (unit, integration and acceptance tests). For python we use pytest
- Experience with pybind/nanobind
- Airflow DAGs or equivalent workflow orchestration
- Polars for high-performance data processing
- Continuous Integration (Jenkins)
- Knowledge of Websocket, TCP/IP networking
- Science or Maths related degree
Benefits
- 25 days of holiday
- Bonus
- Pension contribution
- Private medical, dental, and vision coverage
- Life assurance
- Critical illness cover
- Wellness contribution program with access to Class Pass
- Plumm Platform
- Five volunteering days
- Give as You Earn initiative
- Learning and development programs
- Electric Vehicle Scheme
- Cycle to Work Scheme
- Season Ticket Loan
Python Developer in London employer: LMAX Group
LMAX Group is an exceptional employer that fosters a collaborative and innovative work culture, making it an ideal place for Data Operations Engineers to thrive. With a strong focus on employee growth, LMAX offers extensive learning and development programs, alongside competitive benefits such as private medical coverage and a wellness contribution programme. Located in a dynamic environment, employees are empowered to contribute to cutting-edge data solutions that drive the company's success in the Forex and digital currency trading sectors.
StudySmarter Expert Advice🤫
We think this is how you could land Python Developer in London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at LMAX Group or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to LMAX Group.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like LMAX Group.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like LMAX Group that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Python Developer in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at LMAX Group.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at LMAX Group and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at LMAX Group
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If LMAX Group uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
