Engineer - Java, AWS

Overview

Engineer on IG's Prime Core team, building open-spec, cloud-native trading APIs and the real-time price, order/execution and reference-data systems that institutional and retail clients rely on every trading day.

What you'll do

• Write production Java that other people have to maintain: tested, readable, and honest about its edge cases.
• Work in a spec-driven, AI-assisted development workflow, specifying intent clearly and critically reviewing AI-generated output.
• Contribute to design discussions and technical decisions.
• Deploy and run what you build in AWS, and learn how the cloud behaves when things go wrong.
• Investigate production issues alongside more experienced engineers using logs, metrics, traces and JVM diagnostics to find root cause under time pressure.
• Grow into deeper ownership of services as you build confidence in the systems.

What you'll need

• 3-5 years of professional Java development experience, including hands-on AWS.
• Solid commercial experience writing Java in a production environment.
• Real understanding of JVM runtime behaviour: memory management and garbage collection, the Java memory model, and thread interaction.
• Working knowledge of concurrency and multi-threading, including visibility problems, contention, and bugs that appear only under load.
• Practical JVM diagnostics: reading thread and heap dumps, reasoning about GC behaviour, profiling, and narrowing down memory leaks or contention problems.
• Experience with the Spring Framework, ideally Spring Boot.
• Hands-on AWS experience: deployed and debugged something real in the cloud, and understand the services used.
• Practical experience using AI coding tools as part of your normal workflow, with the judgement to know when their output is wrong.
• Comfort on Linux, including basic shell scripting.
• Curiosity and persistence when something does not add up, and willingness to ask questions early and often.

Details

• Location: Bangalore, India.
• Hybrid working model: three days a week in the office.
• Number of openings: 1.