Applications Developer in London

Applications Developer in London

London Full-Time 60000 - 80000 £ / year (est.) Home office (partial)
Marsh

At a Glance

  • Tasks: Enhance technology systems and improve data processes for better performance.
  • Company: Join Mercer, a leader in investment management with a vibrant culture.
  • Benefits: Enjoy professional development, flexible work options, and a supportive team.
  • Other info: Diverse and inclusive workplace with excellent career growth opportunities.
  • Why this job: Make a real impact on technology solutions while growing your career.
  • Qualifications: BSc/MSc in relevant fields, experience with C# and Python, strong SQL skills.

The predicted salary is between 60000 - 80000 £ per year.

Mercer is seeking candidates for the following position based in the London office: Applications Developer.

What can you expect?

This is a hands‑on technical role focused on improving the robustness, stability, and performance of our technology systems. You will work across the technology platform, with an initial focus on data pipelines, helping to redesign and enhance data processes to make them more fault tolerant, scalable, and efficient. The role offers broad exposure to investment management data, systems, and the wider business.

We will count on you to:

  • Work closely with the Head of Production and support teams to identify areas for improvement
  • Learn our technology architecture and systems, with a focus on trading systems and the data lake used for regulatory reporting
  • Collaborate with the broader Engineering team to understand practices and architecture
  • Perform technical analysis to identify root causes of issues
  • Design and implement technical changes and improvements
  • Take part in coding and code reviews
  • Work closely with business teams as needed

What you need to have:

  • BSc or MSc in a financial, technological, mathematical, or scientific discipline, with a strong analytical foundation
  • Current experience with C# and Python and a passion for software development
  • Strong SQL skills
  • Experience in designing robust data flows and systems
  • Strong, clear, and concise communication skills, both verbal and written
  • A strong sense of responsibility and commitment to quality
  • Self‑driven, motivated work ethic
  • Energetic and enthusiastic personality

What makes you stand out:

  • IMC or another investment management qualification
  • Experience with Apache Airflow
  • Experience with Databricks
  • Experience with asset management data
  • Passion for design and architecture

Why join our team:

  • We help you be your best through professional development opportunities, interesting work and supportive leaders
  • We foster a vibrant and inclusive culture where you can work with talented colleagues to create new solutions and have impact for colleagues, clients and communities
  • Our scale enables us to provide a range of career opportunities, as well as benefits and rewards to enhance your well-being

Marsh is committed to embracing a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age background, civil partnership status, disability, ethnic origin, family duties, gender orientation or expression, gender reassignment, marital status, nationality, parental status, personal or social status, political affiliation, race, religion and beliefs, sex/gender, sexual orientation or expression, skin color, or any other characteristic protected by applicable law. We are an equal opportunities employer. We are committed to providing reasonable adjustments in accordance with applicable law to any candidate with a disability to allow them to fully participate in the recruitment process. If you have a disability that may require reasonable adjustments, please contact us.

Marsh is committed to hybrid work, which includes the flexibility of working remotely and the collaboration, connections and professional development benefits of working together in the office. All Marsh colleagues are expected to be in their local office or working onsite with clients at least three days per week. Office-based teams will identify at least one "anchor day" per week on which their full team will be together in person.

Marsh

Contact Details:

Marsh Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Applications 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 Marsh 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 Marsh.

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 Marsh.

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 Marsh 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 Applications Developer in London

C#
Python
SQL
Data Pipeline Design
Technical Analysis
Root Cause Analysis
Software Development

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 Marsh.

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Marsh 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 Marsh

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 Marsh 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.