Sr. Software Developer

This is Hybrid role (3 days in office /2 days remote) Sr. Software Developer (Greenwich, CT) (Hybrid: Remote work permitted 2 days/week) (multiple positions). Designing and implementing high quality software solutions for compliance, regulatory, and back-office business areas. Define and gather business requirements. Transform business requirements into technical designs and complex applications. Write and maintain design and operational documents. Modernize and refactor legacy systems to improve scalability, reliability, and performance. Participate in code reviews and mentor junior team members. Research novel technologies and solutions to solve a variety of business and technical problems.  Hybrid: Remote work permitted 2 days/week. Must work from Greenwich, CT office 3 days/week. Requires – Master’s degree or foreign equivalent in Computer Science, or related field and Three (3) years of experience as a Software Developer or related position developing with Java. 3 years of experience developing software with JDBC; XML; JSON; Spring; Java EE; and EJB. 3 years of experience with Oracle Database; SQL; SQL Tuning; PL/SQL; data modeling; and table/index design. 2 years of experience building REST services. 2 years of experience with Python and Bash. Send resume with cover letter to IBG LLC, Attn: A.Torres Ref:VD2026, atorres@ibkr.com. No calls. EOE 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   Offices: Greenwich, CT (Greenwich, CT);