Senior Lead Software Engineer - Python & Java

JPMorgan Chase & Co.; Greater London; On-site; GBP 85,000 - 110,000; Full time

Job summary

A global financial services leader is seeking a Senior Lead Software Engineer to develop high-quality production code and optimize AI-driven workflows. Key responsibilities include driving product design and serving as a cloud deployment expert. Ideal candidates should have advanced proficiency in Python and experience with AWS and machine learning. This is a full-time position based in Greater London, offering an opportunity to collaborate within an agile team while contributing significantly to business impact.

Qualifications

• Advanced proficiency in Python programming.
• Hands-on experience in cloud environments.
• Ability to tackle design problems independently.

Responsibilities

• Develop secure and high-quality production code.
• Optimize RAG-based semantic search workflows using OpenAI.
• Influence product design and application functionality.

Skills

Python programming

Java concepts

Cloud-based systems

AI and machine learning

Education

Computer Science or related field

Tools

AWS

OpenAI

Claude models

Job description

Senior Lead Software Engineer - Python / Java

LONDON, LONDON, United Kingdom

Job Information

• Job Identification 210685354
• Job Category Software Engineering
• Business Unit Asset & Wealth Management
• Posting Date 11/11/2025, 02:44 PM
• Locations 60 Victoria Embankment, London, Greater London, EC4Y 0JP, GB
• Job Schedule Full time

Job Description

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level.

Be an integral part of an agile team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products.
As a Senior Python Engineer at JPMorgan Chase within the AM Research Technology team, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. Drive significant business impact through your capabilities and contributions, and apply deep technical expertise and problem-solving methodologies to tackle a diverse array of challenges that span multiple technologies and applications, particularly in cloud-based systems and AI-driven solutions.

Job responsibilities:

• Develops secure and high-quality production code, and reviews and debugs code written by others, with a focus on cloud-based systems using AWS and Python.
• Implements and optimizes RAG-based semantic search and LLM inference workflows using OpenAI and Claude models.
• Drives decisions that influence the product design, application functionality, and technical operations and processes.
• Serves as a function-wide subject matter expert in cloud deployment and AI technologies.
• Actively contributes to the engineering community as an advocate of firmwide frameworks, tools, and practices of the Software Development Life Cycle.
• Influences peers and project decision-makers to consider the use and application of leading-edge technologies.
• Adds to the team culture of diversity, opportunity, inclusion, and respect.

Required qualifications, capabilities, and skills:

• Formal training or certification on Java / Python concepts and proficient advanced experience.
• Hands-on practical experience delivering system design, application development, testing, and operational stability, particularly in cloud environments.
• Advanced proficiency in Python programming.
• Advanced knowledge of cloud-based systems, artificial intelligence, and machine learning, with considerable in-depth knowledge in implementing solutions using AWS.
• Ability to tackle design and functionality problems independently with little to no oversight, demonstrating self-starter capabilities.
• Practical cloud-native experience, specifically with AWS.
• Experience in Computer Science, Computer Engineering, Mathematics, or a related technical field.

Preferred qualifications, capabilities, and skills

• Experience with RAG-based semantic search and LLM inference workflows using OpenAI and Claude models.
• Proven track record of proposing solutions independently and owning execution end-to-end in an individual contributor role.

About Us

J.P. Morgan is a global leader in financial services, providing strategic advice and products to the world’s most prominent corporations, governments, wealthy individuals and institutional investors. Our first-class business in a first-class way approach to serving clients drives everything we do. We strive to build trusted, long-term partnerships to help our clients achieve their business objectives.
We recognize that our people are our strength and the diverse talents they bring to our global workforce are directly linked to our success. We are an equal opportunity employer and place a high value on diversity and inclusion at our company. We do not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. We also make reasonable accommodations for applicants’ and employees’ religious practices and beliefs, as well as mental health or physical disability needs. Visit ourFAQs for more information about requesting an accommodation.

About the Team

J.P. Morgan Asset & Wealth Management delivers industry-leading investment management and private banking solutions. Asset Management provides individuals, advisors and institutions with strategies and expertise that span the full spectrum of asset classes through our global network of investment professionals. Wealth Management helps individuals, families and foundations take a more intentional approach to their wealth or finances to better define, focus and realize their goals.