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Java Software Engineer

Tallinn, Estonia

Company Overview

Interactive Brokers Group, Inc. (Nasdaq: IBKR) is a global financial services company headquartered in Greenwich, CT, USA, with offices in over 15 countries. We have been at the forefront of financial innovation for over four decades, known for our cutting-edge technology and client commitment.

IBKR affiliates provide global electronic brokerage services around the clock on stocks, options, futures, currencies, bonds, and funds to clients in over 200 countries and territories. We serve individual investors and institutions, including financial advisors, hedge funds and introducing brokers. Our advanced technology, competitive pricing, and global market help our clients to make the most of their investments.

Barron's has recognized Interactive Brokers as the #1 online broker for six consecutive years. Join our dynamic, multi-national team and be a part of a company that simplifies and enhances financial opportunities using state-of-the-art technology.

Position

We seek a skilled Software Engineer to design, implement, and maintain API authentication applications and internal tools to streamline external client integration. The ideal candidate should have hands-on experience with Java and be able to communicate effectively in a fast-paced environment.

You will be part of an engineering team that focuses on developing and supporting core authentication systems, leveraging OAuth 2.0, OpenID Connect, and similar protocols to ensure secure and scalable access for our external clients. Our team is also responsible for building and enhancing internal tools (e.g., dashboards, CLI utilities, and web applications) to help us manage third-party integrations. The position is well-suited for an organized individual who can meet deadlines, follow written procedures, collaborate for improvements, and be a team player.

Responsibilities

  • Produce scalable, flexible, efficient full-stack Java applications in an agile environment.
  • Collaborate with security and API engineering teams to implement best practices for authentication, access control, and token management.
  • Architect, design, and develop a software framework to support group goals.
  • Contribute to all development lifecycle phases, including requirements gathering, communication with stakeholders, and documentation.
  • Advise on technical limitations and service design, prepare reports, and present demos to internal and external third-party integration teams.
  • Participate in code reviews, testing, and deployment processes to ensure high-quality deliverables.

Qualifications, Skills & Attributes

Minimum qualifications:

  • Master’s degree or foreign equivalent in computer science or related field and 2 years experience as a Java developer or related IT position developing with Java. Alternatively, a bachelor’s degree or foreign equivalent in computer science or related field and 3 years of experience as a developer or related IT position developing with Java, C++, Python, or Go. 
  • 2+ years of experience with automation scripting third-party API integrations using Python or Bash.
  • Knowledge of security best practices for API development and integration.
  • Experience with designing and implementing RESTful APIs in an Agile environment.
  • Strong problem-solving skills and the ability to work independently in a fast-paced environment.

Company Benefits & Perks

  • Discretionary annual bonus (cash and stock)
  • Private healthcare insurance
  • Free recreational pass (AYCM XL package)
  • Daily food allowance in the office
  • Monthly BKK pass
  • Hybrid way of working (2 days home office/week)
  • Modern office in the heart of Budapest with free amenities
  • Great atmosphere with friendly and exceptional colleagues and frequent company outings.
    *The benefits package will be reviewed regularly and may be subject to change.

 

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Interactive Brokers (“IBKR”) is committed to protecting the privacy of its users. 1. Aggregate Information about Visitors. We collect information on a general and aggregate basis, such as IP addresses, in order to analyze the performance of our sites. This data is used completely anonymously in order to determine the number of people who visit our sites and the most frequently used sections of our sites. This enables us to continually update and refine our sites to ensure it provides you with a successful experience. 2. Information about Users. When registering you are requested to enter certain information about yourself. This information forms the basis for any job application. 3. Your online resume and job application. The details of your job application, covering letter, resume and academic results and any other information will not be viewed by anyone except IBKR and any third party service providers used by IBKR for its hiring processes. 4. Information Management. You can edit any information entered at any time before your job application is submitted. This includes contact details, email address, job application information and password. However, once a job application has been sent, that specific job application cannot be altered. You have certain rights to see and correct data held about you. Please refer to the IBKR Group Privacy Policy on our website. 5. Security. The security of our system is very important to us and we work hard on it. However, please note that no data transmission over the Internet is 100% secure.

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