At a Glance
- Tasks: Lead the design and implementation of innovative features in cutting-edge financial technology.
- Company: Join BMLL, a leading provider of data analytics in the finance sector.
- Benefits: Enjoy competitive salary, 25 days holiday, remote work options, and wellness perks.
- Other info: Inclusive culture with excellent career growth and continuous learning opportunities.
- Why this job: Make an impact in FinTech while working with top-tier technologies and a collaborative team.
- Qualifications: Proven experience in Python, SaaS applications, and strong problem-solving skills.
The predicted salary is between 70000 - 90000 £ per year.
About BMLL
BMLL is the leading independent provider of harmonised Level 3, 2 and 1 historical data and analytics across global equities, ETFs, futures and US equity options. We provide market participants with immediate access to granular T+1 order book data and advanced analytics, enabling them to accelerate research, optimise trading strategies, and better understand market behaviour. BMLL was acquired in 2025 by Nordic Capital, alongside minority shareholder Optiver, marking a joint commitment to accelerate the company’s next phase of growth. We offer an inclusive and collaborative culture, a hybrid working environment that includes regular days in our London office, weekly team lunches, and a variety of out-of-hours social activities.
About the Role
This is a unique opportunity to build industry-leading technology, drive innovation and influence the direction of our company. The BMLL Lab & Vantage products are the market leading applications for data science and data visualisation on the largest financial datasets. This role involves working in a team of Python & Typescript engineers, alongside the SaaS applications Product Owner. As a senior engineer you will take the lead on design and implementation of new features.
Key Responsibilities
- Partner closely with Product Owner in translating complex requirements into clear, actionable engineering tasks.
- Contribute to the application design and development, with effective strategies for testability and product quality.
- Ensure the architecture of the system aligns with best practice and meets the goals for scalability, reliability & security.
- Provide mentorship to junior engineers.
Leadership: Proven experience in designing solutions in a fast-paced agile environment.
SaaS: Expertise in developing single-tenant and multi-tenant B2B SaaS applications with REST APIs and distributed microservices.
FinTech: Experience in delivering SaaS applications into front-office capital markets.
Design: Proficient in architecture design using AWS services such as Cognito, Lambda, Fargate, API Gateway, Terraform.
Data Skills: Experience in data science and financial data visualisation applications in Typescript.
Problem Solving: Strong analytical and troubleshooting skills.
Communication: Excellent communication skills to interact effectively with development teams and product managers.
Desirable Skills
- Excellent communication skills, with the ability to communicate fluently with both technical and non-technical audiences.
- Experience with data science tools, e.g. one or more of Spark, pandas, DuckDB, DataBricks, Snowflake.
- Knowledge of agile development and continuous delivery methodologies.
Benefits
- Competitive salary
- 25 days holiday plus bank holidays
- Discretionary Bonus
- Pension Scheme
- Private Medical Insurance
- Work remotely abroad for up to 40 business days each year
- Life Insurance
- Childcare Nursery Scheme
- Combination of remote and London-based office working, with 2 days in the office per week.
- A yearly Well-being Physical Activity budget
- Continuous learning through funded training and challenging projects
- Collaborative culture
- Weekly team lunches
- Free Fruit, snacks, and drinks provided throughout the day (When office-based)
- Regular Team Socials
- Cycle to Work Scheme
We are an inclusive employer and welcome applicants from all backgrounds. We pride ourselves on our commitment to Equality and Diversity. We are committed to removing barriers throughout our hiring process. If you have any special requirements or require reasonable adjustments to help you access career opportunities at BMLL, please do let us know.
Senior Python Engineer in London employer: Bmll-Technologies-Ltd
BMLL is an exceptional employer that fosters an inclusive and collaborative culture, offering a hybrid working environment with regular team lunches and social activities in London. Employees benefit from competitive salaries, generous holiday allowances, and a commitment to continuous learning through funded training, making it an ideal place for those seeking meaningful growth in the FinTech sector.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Python Engineer in London
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, especially those who work at BMLL or similar companies. A friendly chat can sometimes lead to insider info about job openings or even a referral.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your Python projects, especially those related to data science or FinTech. This will give you an edge and demonstrate your expertise when you get that interview.
✨Tip Number 3
Prepare for the technical interview! Brush up on your coding skills and be ready to solve problems on the spot. Practising with platforms like LeetCode or HackerRank can help you ace those tricky questions.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining the BMLL team.
We think you need these skills to ace Senior Python Engineer in London
Some tips for your application 🫡
Tailor Your CV:Make sure your CV is tailored to the Senior Python Engineer role. Highlight your experience with Python, Typescript, and any relevant SaaS applications. We want to see how your skills align with what we're looking for!
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you're passionate about working at BMLL and how you can contribute to our innovative projects. Keep it concise but impactful – we love a good story!
Showcase Your Problem-Solving Skills:In your application, don’t forget to mention specific examples of how you've tackled complex problems in previous roles. We’re keen on seeing your analytical skills in action, especially in a fast-paced environment like ours.
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way to ensure your application gets into the right hands. Plus, it shows us you’re serious about joining our team at BMLL!
How to prepare for a job interview at Bmll-Technologies-Ltd
✨Know Your Tech Stack
Make sure you’re well-versed in Python and Typescript, as these are key for the role. Brush up on your knowledge of AWS services like Cognito and Lambda, and be ready to discuss how you've used them in past projects.
✨Understand the Business
Familiarise yourself with BMLL's products and the financial data landscape. Being able to talk about how your skills can contribute to their mission will show that you're genuinely interested in the company and its goals.
✨Prepare for Problem-Solving Questions
Expect to tackle some analytical challenges during the interview. Practice explaining your thought process clearly, as communication is key. Use examples from your experience where you’ve solved complex problems in a fast-paced environment.
✨Show Your Leadership Skills
As a senior engineer, you'll need to demonstrate your ability to mentor others and lead projects. Think of specific instances where you've guided junior engineers or taken charge of a project, and be ready to share those stories.
