Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Software Engineer III

Interactive Brokers

Interactive Brokers Group, Inc. (NASDAQ: IBKR), 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.

This is a hybrid role (3 days in the office/2 days remote)

About your team:

Our clearing applications group works on back-end, internal systems and client-facing applications. These applications support Funds and banking software handling client cash, brokerage operations, securities borrowing and lending, clearing operations including regulatory reporting, trade settlement and reconciliation, corporate action processing, client statements, reference data systems, and IPO processing, to name just a few. In addition, we also continuously work on our fully integrated internal development and operational tools used to handle functions such as software releases, job scheduling, service location and security frameworks, and build management tools. We are looking to continuously improve our intelligent, automated systems to provide the world-class solutions and systems our brokerage customers expect.


What will be your responsibilities within IBKR:
  • Creating software applications or systems to meet user needs while considering functionality, reliability, and scalability.
  • Utilizing Java programming languages to write clean, maintainable, and efficient code and develop back-end services and algorithms
  • Conducting thorough testing to identify bugs or issues in the software and resolving them to ensure high-quality deliverables.
  • Working closely with other developers, designers, product managers, and stakeholders to understand project requirements and specifications.
  • Reviewing code written by peers for quality assurance and providing constructive feedback.
  • Updating and modifying existing applications to improve efficiency, enhance functionality, and fix vulnerabilities.
  • Creating and maintaining detailed documentation for code, software designs, and development processes for future reference.
  • Keeping up with industry best practices, emerging technologies, and programming languages to refine skills and improve development processes.
  • Contributing to project timelines, estimates, and resource allocations to ensure deadlines are met and goals are achieved.
  • Assisting users with software-related issues and providing training sessions when needed.
  • Have a desire to learn about and understand financial instruments and concepts.
Skills Required:
  • Bachelor's or master's degree in computer science or related degree.
  • 5+ years of Java experience or similar object-oriented language experience.
  • Strong knowledge of object-oriented concepts, n-tier applications
  • Knowledge of relational database concepts (Oracle is a plus).
  • Hands-on experience with server-side programming, ideally with Java/JEE or C++, message-oriented systems, RESTful web services, and microservices.
  • Desire to challenge the status quo, create simple, elegant solutions to complex problems, and follow solutions from development through production release, acceptance testing, and support.
  • Experience with configuration and deployment on application servers, ideally JBoss.
  • Knowledge of financial instruments is a plus but is not required. Otherwise, you have a desire to learn about and understand financial instruments and concepts.
To be successful in this position, you should be:
  • Detail-oriented self-starter who is comfortable working both independently and collaborating with your team.
  • Passionate about writing clean, well-tested, and maintainable code.
  • You should have a high level of comfort in an environment of continuous integration and deployment.
  • Optimizing, improving, and supporting existing algorithms and systems to reach the goal of highly automated robust systems with full test coverage requiring minimal operational oversight.
  • Creating independent automated risk controls and checks to ensure that systems are performing as expected and catching potential errors as soon as possible.
  • Developing message-oriented systems, batch processing applications, and web application-based management consoles.
  • Continuous learner and will use and/or learn the right language and technology to solve a problem.
Company Benefits & Perks:
  • Competitive salary, annual performance-based bonus and stock grant
  • Retirement plan 401(k) with competitive company match
  • Excellent health and welfare benefits, including medical, dental, and vision benefits
  • Wellness screenings and assessments, health coaches and counseling services through an Employee Assistance Program (EAP)
  • Paid time off and a generous parental leave policy
  • Daily company lunch allowance provided, and a fully stocked kitchen with healthy options for breakfast and snack
  • Corporate events including team outings, dinners, volunteer activities and company sports teams
  • Education reimbursement and learning opportunities
  • Modern offices with multi-monitor setups.
Vacancy posted 2 hours ago
Similar jobs that could be interesting for youBased on the Software Engineer III in Greenwich, CT vacancy
  • $182k - $274k

     ...Total Visits, March 2025) Day to Day As a Data Scientist III at Indeed, you will leverage your expertise in data science, statistics...  ...impact across the organization. You will work closely with engineering and product or marketing teams to identify opportunities,... 
    Suggested
    Work experience placement
    Local area

    Indeed Inc.

    Stamford, CT
    3 days ago
  •  ...JobTarget is looking for a Software Engineer to join our team in our Stamford ct office. This person is responsible for the end-to-end planning, building, and deploying of our software systems. He/she will be able to drive the programming of well-constructed, testable... 
    Suggested
    Full time
    Casual work
    Work at office

    Jobtarget

    Stamford, CT
    14 hours ago
  •  ...applications group works on back-end, internal systems and client-facing applications. These applications support Funds and banking software handling client cash, brokerage operations, securities borrowing and lending, clearing operations including regulatory reporting,... 
    Suggested
    Work at office
    Immediate start
    Remote work

    Interactive Brokers

    Old Greenwich, CT
    3 days ago
  • $105k - $145k

     ...all, we're backed by a culture of respect. We embrace authenticity and inspire people to thrive. About the role As our Software Engineer, you'll join the Content Delivery Engineering team (CDE) within NBCUniversal's Global Video Engineering organization in New... 
    Suggested
    Work at office
    Local area

    NBCUniversal

    Stamford, CT
    2 days ago
  • $100k - $150k

     ...innovation and creating the best experience for job seekers. Day to Day Indeed's Notifications team is seeking exceptional software engineers to join us in building and maintaining CommsHub — Indeed's internal communications platform that delivers hundreds of... 
    Suggested
    Work experience placement
    Local area
    Worldwide

    Indeed

    Stamford, CT
    5 days ago
  • $135.2k - $306.4k

     ...Job Description Senior / Principal Software Engineer or Architect Database Engine, Search & Document Systems We are looking for senior systems builders to help shape the next generation of document, search, and AI-facing capabilities inside Oracle Database. This... 
    Full time
    Temporary work
    Flexible hours

    Oracle

    Stamford, CT
    1 day ago
  •  ...applications group works on back-end, internal systems and client-facing applications. These applications support Funds and banking software handling client cash, brokerage operations, securities borrowing and lending, clearing operations including regulatory reporting,... 
    Work at office
    Immediate start
    Remote work

    Interactive Brokers

    Old Greenwich, CT
    3 days ago
  •  ...in their field, offering specialized solutions and expert guidance tailored to their clients' needs. They are looking for a Software Engineer who will design, develop, and maintain high-quality software solutions that meet the needs of our client's users. This is an... 

    The Right Click, Inc.

    Stamford, CT
    20 hours ago
  • $165k - $187k

     ...improved after-tax outcomes. For more firm information, please visit Position Summary: OSAM is hiring a Senior Software Engineer to join our Technology team. The ideal candidate will have demonstrated a passion for solving business problems with... 
    Local area
    Remote work
    Work visa

    Franklin Templeton

    Stamford, CT
    4 days ago
  • $175k - $250k

     ...seek people who think in code and are motivated by being around like‑minded people. The Role Our group is responsible for building software enabling both the large‑scale quantitative research operations that drive WorldQuant’s platform and the production of our... 
    Casual work
    Flexible hours

    WorldQuant

    Greenwich, CT
    14 hours ago
  • $107.3k - $185.84k

     ...Description: This Lockheed Martin (LM) Enterprise Business and Digital Transformation (EBDT) Software Engineer position is for a Java / COTS developer for the Rotary & Mission Systems (RMS) IT organization supporting engineering applications for the RMS business area... 
    Full time
    Temporary work
    Work experience placement
    Work at office
    Remote work
    Relocation
    Flexible hours
    Shift work
    3 days per week

    Lockheed Martin Corporation

    Stamford, CT
    20 hours ago
  • $155k - $222.6k

     ...team builds and operates the time-series database and supporting software components that store and serve the telemetry behind Cisco...  ...infrastructure in C++, take on real responsibility, and learn from the engineers around them. Your Impact As a member of the Time Series... 
    Full time
    Temporary work
    Local area
    Flexible hours

    Cisco

    Stamford, CT
    14 hours ago
  •  ...accounting, and market data systems. Build and improve APIs, software frameworks, testing strategies, and CI/CD processes to enhance...  ...Understanding of software development best practices and modern engineering methodologies. Experience using AI-powered development tools... 
    Internship

    Green Key Resources

    Greenwich, CT
    3 days ago
  •  ...your background aligns with future opportunities, we’ll reach out directly when formal applications become available. About Software Engineering Roles at Danaher Are you passionate about building real-world applications, writing clean code, and solving meaningful... 
    Remote job
    Internship

    Danaher

    Stamford, CT
    14 hours ago
  • $4,500 - $5,800 per week

     ...Job Description At Citadel, our engineers work in small teams to turn the best ideas into high-performing and resilient technology. With short development cycles, work rapidly goes into production. As an engineer, you can create system architectures, develop platforms... 
    Weekly pay
    Internship
    Relocation package

    Citadel

    Greenwich, CT
    14 hours ago
  •  ...quality of care. Kibu has raised over $5M in seed funding and supports more than 400 organizations across 46 states. Senior Software Engineer Kibu is seeking a talented and driven Senior Software Engineer to play a key role in shaping our innovative platform for disability... 
    Work at office
    Remote work

    Connecticut Innovations

    Stamford, CT
    1 day ago
  • $110.5k - $160k

     ...Description By applying to this position, your application will only be considered for our fall Software Development Engineer (SDE) internship roles. Our fall intern roles have start dates in August/September 2026 and are 12 weeks in duration. Do you want to solve real... 
    Full time
    Internship
    Work at office
    Worldwide
    Monday to Friday

    Amazon

    Stamford, CT
    2 days ago
  •  ...the office/2 days remote). About Your Team: The current Tools Engineering team has provided various world‑class tools across the firm(...  ...Responsibilities: We seek a self-driven, self-motivated & self-managed software developer with expertise in Python programming. An ideal... 
    Work at office
    Remote work

    Interactive Brokers

    Greenwich, CT
    3 days ago
  •  ...Our client is seeking a Full Stack Software Developer with strong experience in C#.NET, Angular, and SQL to support the development and enhancement of enterprise-level applications within a Financial Services environment. This role will partner closely with business... 

    The Right Click, Inc.

    Stamford, CT
    20 hours ago
  •  ...infrastructure, data pipelines, and user-facing AI applications. Role Summary We are looking for an enthusiastic Intern Software Engineer to support the AI/LLM initiative team. You will assist in various aspects of the software development lifecycle, including development... 
    Full time
    Internship

    WorldQuant

    Old Greenwich, CT
    1 day ago
  • $55k - $151.47k

     ...Associate Job Description & Summary The Opportunity As an AI Engineer, you will be at the forefront of transforming raw data into...  ...Internal Firm Services practice, you will apply data, algorithms, and software engineering to build and deploy software and platform systems... 
    Work experience placement
    H1b

    PwC

    Stamford, CT
    1 day ago
  • $100k

     ...lab etc to name a few. Currently, we are looking for entry-level software programmers, Java full stack developers, Python/Java developers, data analysts/data scientists, machine learning engineers for full time positions with clients. Who should apply? Recent computer... 
    Full time
    H1b

    SynergisticIT

    Stamford, CT
    14 hours ago
  • $200k - $220k

     ...responsible for providing trading and related backend systems used in brokerage business ~Design, implement and deliver high quality software solutions that conform to architectural standards ~Manage and 'own' significant development tasks end-to-end (from business... 

    Solomon Page

    Greenwich, CT
    3 hours ago
  •  ...Our Tax Compliance team develops and maintains enterprise-level software to meet global tax reporting obligations accurately and...  ...# Bachelor's or Master's degree in Computer Science, Computer Engineering, or a related technical field. #3+ years of experience in... 

    Texas State Library and Archives Commision

    Stamford, CT
    2 days ago
  •  ...About Mirafra : Mirafra is software service base organization started in 2004. We are 500+ employees in India and 250+ In US Clear visibility...  ...’s degree preferred or Bachelor’s degree in Computer Science, Engineering or Mathematics Minimum of 3 years of experience in Java... 

    Mirafra Technology

    Greenwich, CT
    3 days ago
  •  ...include butare not limited to: i. Website performance and outages ii. Updating the CMS to ensure the latest stable version is implemented iii. Updating any plugins or 3rd party tools to ensure the latest stable version isimplemented iv. Other miscellaneous hosting need... 
    Contract work
    Immediate start

    Syntricate Technologies

    Stamford, CT
    1 day ago
  •  ...The Opportunity: A small, highly technical team is hiring a senior engineer to work on a set of core systems that are the foundation for our firm. These tools are already deeply embedded across the organization, and the work centers on making them faster, more stable,... 
    Work at office

    CPS

    Old Greenwich, CT
    2 days ago
  • $175k - $220k

     ...Our Client's Platform engineering team is looking for a Senior Platform Engineer - Design, the person will define, design and develop plans...  ...consistent standardized solutions across IB for all hardware, software, configurations, and processes. Implement tools and... 
    Weekend work

    Solomon Page

    Greenwich, CT
    1 day ago
  • $150k - $250k

     ...Lead Software Engineer WorldQuant develops and deploys systematic financial strategies across a broad range of asset classes and global markets. We seek to produce high-quality predictive signals (alphas) through our proprietary research platform to employ financial... 
    Casual work
    Flexible hours

    WorldQuant

    Old Greenwich, CT
    14 hours ago
  • $100k - $120k

     ...financial workflows into clean, scalable, and user-friendly interfaces. This individual will work closely with product managers, backend engineers, and client-facing teams to ensure Vantage delivers a seamless and reliable user experience for both internal and external... 
    Full time
    Work at office
    Remote work

    Valitana

    Stamford, CT
    14 hours ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Software Engineer III. Be the first to apply!