Senior Software Engineer/SRE - Application Middleware in City of London

Senior Software Engineer/SRE - Application Middleware in City of London

City of London Full-Time 36000 - 60000 £ / year (est.) No working from home possible
Bloomberg

At a Glance

  • Tasks: Build high-performance software for Bloomberg's global infrastructure and ensure system reliability.
  • Company: Join Bloomberg, a leader in financial technology with a focus on innovation.
  • Benefits: Enjoy competitive salary, health benefits, and opportunities for professional growth.
  • Other info: Dynamic team environment with excellent mentorship and career advancement opportunities.
  • Why this job: Make a real impact by enhancing systems that serve hundreds of thousands globally.
  • Qualifications: Degree in Computer Science or equivalent, strong software engineering skills, and systems knowledge.

The predicted salary is between 36000 - 60000 £ per year.

Senior Software Engineer/SRE - Application Middleware

Location: London, United Kingdom

Description & Requirements

Are you passionate about building high‑performance systems that are fast, resilient, and operate at global scale? Join Bloomberg’s Application Middleware SRE team, where you’ll combine software engineering and systems expertise to keep the backbone of the Bloomberg Terminal running smoothly for hundreds of thousands of users around the world.

The Team

We’re the Site Reliability Engineering team within Bloomberg’s Application Middleware group. Our mission is to ensure that Bloomberg’s core connectivity and messaging layers are resilient, scalable, and fully observable. We own systems that operate at high throughput and low latency, including:

  • Gateways: Secure, high‑performance TCP/SSL entry points to our data centers
  • HFN & NSTP: A global HTTP CDN and SOCKS5 proxy network delivering fast access from any geography
  • Playlist Services: Dynamic path configuration systems optimizing user connectivity in real time
  • PGM Relays: Infrastructure for reliable multicast data delivery

What You’ll Do

  • Build production‑grade software that powers Bloomberg’s global infrastructure
  • Design and implement scalable, fault‑tolerant systems with a focus on observability, performance, and automation
  • Collaborate across engineering teams to introduce automated, self‑service operational workflows
  • Conduct deep systems analysis and root cause investigations for complex, distributed systems
  • Propose and prototype innovative approaches to reliability and risk mitigation
  • Contribute to design docs, runbooks, and post‑incident reviews—clear communication is part of the job

You’ll Need to Have

  • A degree in Computer Science, Engineering, Mathematics, or equivalent practical experience
  • Strong software engineering skills in a high‑level language (Python and C++ are primary)
  • A deep understanding of software system reliability and risk management—including how to identify potential points of failure and design mitigation strategies
  • Good understanding of data structures, algorithms, and system design
  • Experience navigating and improving large, distributed codebases
  • Ability to identify system risks and engineer around points of failure
  • Clear written and verbal communication, including technical documentation and incident analysis

We’d Love to See

  • Systems knowledge: Operating systems, networking protocols (TCP, UDP, multicast), or core database concepts in modern infrastructure
  • Cluster management experience, especially with Argo and/or Kubernetes or other pipeline management platforms
  • Machine management at scale: capacity planning and automating lifecycles of large machine fleets
  • System observability and monitoring: SLIs/SLOs/SLAs, alerting, and building dashboards for complex systems
  • Reliability in distributed systems: knowledge of fault tolerance and network/node failure challenges
  • Mentoring: Proven experience mentoring and growing junior engineers
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Senior Software Engineer/SRE - Application Middleware in City of London employer: Bloomberg

Bloomberg is an exceptional employer, offering a dynamic work environment in London where innovation and collaboration thrive. As part of the Site Reliability Engineering team, you'll have the opportunity to work on high-performance systems that impact users globally, while benefiting from a culture that prioritises employee growth through mentorship and continuous learning. With a focus on automation and observability, Bloomberg empowers its engineers to tackle complex challenges and contribute to cutting-edge technology solutions.

Bloomberg

Contact Details:

Bloomberg Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior Software Engineer/SRE - Application Middleware in City of 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 Bloomberg 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 Bloomberg.

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 Bloomberg.

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 Bloomberg 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 Senior Software Engineer/SRE - Application Middleware in City of London

Software Engineering
Python
C++
System Reliability
Risk Management
Data Structures
Algorithms

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 Bloomberg.

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

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 Bloomberg 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.