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 budget.
- Other info: Inclusive culture with excellent career growth and regular team socials.
- Why this job: Make an impact in FinTech while collaborating with a dynamic team of engineers.
- Qualifications: Proven experience in SaaS applications and strong problem-solving skills required.
The predicted salary is between 60000 - 80000 £ 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
Requirements
- 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 at careers@bmlltech.com.
Senior Python Engineer employer: BMLL
BMLL is an exceptional employer, offering a dynamic and inclusive work culture that fosters collaboration and innovation. With a hybrid working model based in London, employees enjoy competitive benefits such as a generous holiday allowance, private medical insurance, and opportunities for continuous learning, all while contributing to cutting-edge technology in the FinTech sector. The company prioritises employee growth through mentorship and challenging projects, making it an ideal place for those seeking meaningful and rewarding careers.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Python Engineer
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, attend meetups, and engage with professionals on LinkedIn. We all know that sometimes it’s not just what you know, but who you know that can help you land that Senior Python Engineer role.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those involving Python and data visualisation. We love seeing real-world applications of your expertise, so make sure to highlight any relevant work when you chat with potential employers.
✨Tip Number 3
Prepare for interviews by brushing up on your problem-solving skills. Practice coding challenges and be ready to discuss your thought process. We want to see how you tackle complex requirements and translate them into actionable tasks, just like you would at BMLL.
✨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, we’re always on the lookout for passionate candidates who fit our inclusive and collaborative culture.
We think you need these skills to ace Senior Python Engineer
Some tips for your application 🫡
Tailor Your CV:Make sure your CV is tailored to the Senior Python Engineer role. Highlight your experience with SaaS applications, Python, and any relevant FinTech projects. 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 this role and how you can contribute to our team. Don't forget to mention your experience in agile environments and your problem-solving skills.
Showcase Your Projects:If you've worked on any relevant projects, make sure to include them! Whether it's a personal project or something from your previous job, we love seeing practical examples of your work, especially in data science and visualisation.
Apply Through Our Website:We encourage you to apply through our website for the best chance of getting noticed. It helps us keep track of applications and ensures you’re considered for the role. Plus, it’s super easy!
How to prepare for a job interview at BMLL
✨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.
✨Showcase Your Problem-Solving Skills
Prepare examples that highlight your analytical and troubleshooting abilities. Think of specific challenges you've faced in previous roles and how you tackled them, especially in a fast-paced agile environment.
✨Communicate Clearly
Practice explaining complex technical concepts in simple terms. You’ll need to interact with both technical and non-technical audiences, so being able to bridge that gap is crucial.
✨Demonstrate Leadership and Mentorship
Be ready to discuss your experience in mentoring junior engineers and leading projects. Share specific instances where you’ve taken the lead on design and implementation, showcasing your leadership style.
