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About the Role

We are looking for a talented and driven Java Engineer to take a hands-on delivery role across our core financial systems. You'll be a co-owner of our codebase, a trusted colleague to your peers, and a key contributor to how we evolve our platform. Crucially, you'll bring a genuine understanding of AI concepts and how they can be applied to solve real product problems.

Responsibilities

• Taking end-to-end delivery ownership of key software development projects and enhancements
• Designing and building scalable, server-side Java services that enhance our core financial systems
• Monitoring, managing and further automating business operations
• Acting as a co-owner of the codebase — proactively identifying and implementing improvements
• Collaborating closely with stakeholders to ensure requirements are well understood, designs are sound and deadlines are met
• Reviewing designs and code produced by colleagues, providing clear and constructive feedback

Requirements

• 3+ years of industry experience with a strong track record of delivery
• Solid server-side design and development skills using Java, Linux, Apache, Mongo, and Postgres
• Familiarity with the full agile development lifecycle: version control, testing, CI/CD and build tooling
• Strong organisational and communication skills, comfortable engaging both engineers and business stakeholders
• Able to apply creative, pragmatic thinking to find elegant solutions rather than just brute-force ones
• Demonstrates strong personal integrity and accountability
• Open to and actively seeks constructive feedback
• A passionate advocate for clean, concise and simple code and design
• A natural technical leader who earns the trust and confidence of peers
• A collaborative team player — comfortable giving and receiving constructive feedback, following as well as leading, and always willing to learn
• Someone who thrives in a fast-paced, relatively unstructured environment and takes genuine personal accountability for outcomes
• Quick to get up to speed in new business domains, asking the right questions and absorbing new concepts rapidly

Skills

• Java
• Linux
• Apache
• Mongo
• Postgres
• Spring Boot
• Elasticsearch
• AI concepts
• LLMs
• Machine learning fundamentals
• Prompt engineering
• AI-assisted development tooling
• Vector embeddings
• Semantic search
• Agentic AI systems
• Tool use
• Multi-step reasoning
• Structured output
• Core computer science principles
• Algorithms
• Data structures
• System design

Location

• 20 Fenchurch Street, London, EC3M 3BY

Work Type

• Hybrid working model
• Full-time

Experience Level

• 3+ years of industry experience

Education Level

• Degree in Computer Science, Engineering or a related STEM discipline

Salary/Compensations

• Salary commensurate with experience

Benefits

• Career support and development
• Performance based discretionary cash bonus scheme
• Discretionary stock grant
• Group Life Assurance cover
• Group Income Protection
• Occupation pension scheme based on Gross earnings
• Above statutory annual leave, increasing with service
• Daily company-paid lunch and healthy snack options throughout the day (when working from the office)
• Access to Private Medical Insurance, Dental Plan and / or Health Cash Plan*
• Corporate events
• Travel season ticket loans*
• Cycle to work scheme*
• Fitness subsidisation

About the Company

• Interactive Brokers Group, Inc., a member of the S&P 500, is a global financial services company headquartered in Greenwich, Connecticut, with offices in over 15 countries.
• Through its affiliates, Interactive Brokers provides automated trade execution and custody of securities, commodities, foreign exchange, and prediction markets on over 170 markets in numerous countries and currencies.
• For more than four decades, Interactive Brokers has focused on technology, automation, and innovation to provide clients worldwide with a sophisticated, unified platform to manage their investment portfolios.
• We serve individual investors, hedge funds, proprietary trading groups, financial advisors, and introducing brokers.
• Our culture is driven by problem-solving, efficiency, and continuous improvement.
• We look for individuals who are intellectually curious, collaborative, and motivated to contribute to technology that helps simplify and enhance access to global financial markets.
• Interactive Brokers has consistently been recognized as a top broker by respected industry sources including Barron’s, Investopedia, Stockbrokers.com, and others.
• Covestor Limited (doing business as Interactive Advisors ("IA")) are part of the IBKR group.
• We are an online robo-advisor and investing platform, offering clients in the USA a variety of portfolios.
• This role will be permanent with IA, and working with us you will get exposure to Interactive Advisors work streams but also many projects working with the wider IBKR group.