Software Engineer III - Low-Latency Java and Kafka

JPMorgan Chase & Co.; England; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading financial institution in the United Kingdom is seeking a passionate Software Engineer III. In this role, you will design and develop high-performance Java applications while collaborating with a diverse global team. You will have the opportunity to lead technical initiatives, support junior colleagues, and contribute to a culture of innovation and inclusion. Experience with Java and modern testing tools is essential, along with strong communication skills. Join us to make a real impact in the liquidity business.

Qualifications

• Proficient applied experience in Java.
• Must understand OO programming paradigms and multi-threading.
• Experience in building high-performance Java applications.

Responsibilities

• Design and develop high-performance, latency-sensitive code.
• Write secure, high-quality code and automated tests.
• Provide technical leadership to small engineering sub-teams.

Skills

Java fundamentals

Spring Boot

Multi-threading

Messaging technologies

Communication skills

Event driven architecture

Education

Formal training or certification on Java concepts

Tools

JUnit

Mockito

Spring Test Framework

Linux

Kafka

Job description

Be an integral part of a team that's constantly pushing the envelope to enhance, build, and deliver cutting‑edge technology products.

Join JPMorgan’s Liquidity and Account Solutions Technology team and be part of a dynamic group dedicated to delivering innovative technology products. We are seeking motivated Java engineers to enhance our global technology organization, focusing on modern solutions for the Corporate & Investment Bank’s Payments business. Our systems manage client liquidity in real‑time, supporting cash demands and building a next‑generation core wholesale banking platform designed for global scale and rapid response.

As a Software Engineer III at JPMorgan Chase within the Liquidity and Account Solutions Technology team, you will be responsible for building and supporting services for our market‑leading liquidity business. You will contribute features, enhancements and bug fixes – ensuring our codebase remains modern, well‑structured and robust. You will collaborate with colleagues to perform technical analysis of client requirements, participate in estimation, planning, code reviews, architecture design sessions and retrospectives. This role offers the opportunity to learn about liquidity from colleagues, stakeholders and extensive training resources. You will have the chance to grow your skills through our curated technical development programs and dedicated training days. This exciting role provides you with the opportunity to see the direct impact of your contributions on the liquidity business and receive client feedback from around the globe. While banking experience is not required, you must be a passionate and well‑rounded technologist, eager to continuously learn and enhance your skills.

Job responsibilities

• Design and develop high‑performance, latency‑sensitive code, incorporate security requirements and review code written by team members using software engineering best practices
• Write secure, high‑quality code and automated tests
• Produce architecture and design artifacts for complex applications while being accountable for ensuring design constraints are met by code
• Identify opportunities to eliminate recurring issues to improve overall operational stability of software applications and systems
• Participate in communities of practice across the group to drive awareness, consistency and adoption of modern technologies
• Add to team culture of diversity, equity, inclusion, and respect
• Collaborate effectively as part of a global team
• Provide technical leadership to small engineering sub‑teams focused on the delivery of a small epic by transforming requirements into stories and a build plan
• Support junior colleagues in their technical growth
• Provide out of hours application support and coordinate Production releases

Required qualifications, capabilities, and skills

• Formal training or certification on Java concepts and proficient applied experience.
• Excellent understanding of Java fundamentals and frameworks (Spring Boot), OO programming paradigms, multi‑threading, messaging technologies and computer networks
• Experience in building high‑performance, latency‑sensitive Java applications
• Experience in maintaining and troubleshooting software running in a Linux environment, familiarity with the Linux operating system, system utilities, containers and cloud architectures and services
• Experience with modern testing tools (JUnit, Mockito, Spring Test Framework)
• Strong interpersonal and communication skills, with experience working with globally distributed engineers and stakeholders
• Understanding of the full software development lifecycle and agile approach
• Hands‑on experience with event driven architecture and distributed messaging technologies (Kafka)

Preferred qualifications, capabilities, and skills

• Hands on experience another statically compiled language like Golang, Rustor C++
• Experience with gRPCand Google Protocol Buffers
• Experience with caching technologies, e.g. Redis
• Experience with infrastructure as code software, e.g. Terraform
• Experience using and designing schemas/data structures in resilient SQL and NoSQL databases (e.g. CockroachDB)
• Familiarity with front‑end technologies, like ReactJs
• Certified Kubernetes and public cloud knowledge (e.g. CKAD and AWS certifications)