Application Support Engineer

Dubizzle Limited; Greater London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading UK-based FinTech company is seeking an Application Support Engineer to join their dynamic team. The role focuses on solving complex production issues and maintaining application reliability. Responsibilities include incident response, troubleshooting, application debugging across Java, Golang, and Python, and operating Kubernetes clusters. The position offers enhanced leave, private healthcare, and the opportunity for global mobility. Candidates with a strong understanding of PostgreSQL and reliability-focused mindset will thrive in this environment.

Benefits

Enhanced leave - 38 days inclusive of 8 UK Public Holidays

Private Health Care including family cover

Life Assurance – 5x salary

Employee Assistance Program

Company Pension(Salary Sacrifice options available)

Access to training and development

Buy and Sell holiday scheme

Opportunity for work from anywhere/global mobility

Qualifications

• Solid experience with application debugging in Java, Golang, or Python.
• Good grasp of PostgreSQL to run queries and perform safe fixes.
• Familiarity with Kubernetes and modern cloud platforms.

Responsibilities

• Investigate and resolve incidents raised by clients.
• Work across the core stack to trace and fix reliability issues.
• Perform data investigation and fixes using Postgres.
• Patch and maintain Kubernetes clusters.
• Contribute to the improvement of observability and reliability.

Skills

Application debugging

PostgreSQL

Kubernetes

Incident management

Observability tools

Tools

Java

Golang

Python

Job description

Overview

Join the Future of Technology with ZILO™

At ZILO™, we're redefining what’s possible in technology. ZILO™ is the UK-based FinTech specialising in global asset and wealth management software, designed to scale and transform businesses of all types using our own developed AI Technology. Our mission is to digitalise the future of the global asset management industry.

We are a team of experts with decades of combined experience at leading firms globally, who thrive in fast-paced environments and want to shape the future of technology. Every individual plays a key role in driving progress and making a real impact. We continuously strive to innovate and improve.

Why work with us? At ZILO™, you'll be part of a dynamic and inclusive environment where creativity thrives. We offer the opportunity to work on cutting-edge technology, collaborate with talented individuals, and contribute to projects that have a real-world impact. We value continuous learning, personal growth, and providing our team with the resources they need to succeed.

Ready to shape the future? Let’s talk.

This role is hybrid and will require regular weekly attendance at our London office.

We’re looking for an Application Support Engineer to join our team — someone who thrives on solving complex production issues, understands how applications behave in the real world, and takes pride in keeping systems reliable and performant.

This is not a platform engineering role. You won’t just be spinning up Kubernetes clusters or building infrastructure — you’ll be deeply involved in understanding our applications, what they do and how they operate, troubleshooting real-world issues, and working directly on improvements that impact our customers every day.

What You’ll Do

• Incident Response & Troubleshooting: Investigate and resolve incidents raised by clients, diving into logs, metrics, and application code to identify root causes.
• Application Debugging: Work across our core stack — Java, Golang, and Python — to trace and fix issues affecting reliability or performance.
• Data Fixes: Perform data investigation and fixes using Postgres.
• Operational Excellence: Patch and maintain Kubernetes clusters and other production systems.
• SRE Roadmap: Contribute to the continuous improvement of our observability, reliability, and automation initiatives.

Qualifications

• Solid experience with application debugging in at least one of: Java, Golang, or Python.
• A good grasp of PostgreSQL — enough to run queries, analyse data, and perform safe fixes.
• Familiarity with Kubernetes and modern cloud platforms (AWS, GCP, or Azure).
• Understanding of incident management, observability tools (Grafana, Prometheus, etc.)
• A mindset focused on reliability, quality, and ownership.

Benefits

• Enhanced leave - 38 days inclusive of 8 UK Public Holidays
• Private Health Care including family cover
• Life Assurance – 5x salary
• Employee Assistance Program
• Company Pension(Salary Sacrifice options available)
• Access to training and development
• Buy and Sell holiday scheme
• The opportunity for “work from anywhere/global mobility”