Software Engineer

Citadel Securities Americas Services LLC · New York, NY

Education

Bachelor's in Computer Science, Engineering, or a related field

Experience

See posting

Wage

$255,000–$295,000 per year (from the posting)

First / last seen

2026-09-26 / 2026-10-16

Experience must include

Object-oriented programming and designEnd-to-end software developmentC, C++, C#, Java, Python, or PerlStatistical analysisData structures, algorithms, and computer architectureMachine Learning techniques

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Where this job is advertised

National Labor Exchange (state job banks, via usnlx.com search) swa live

first seen 2026-09-26 · posted 2026-09-19

Original posting ↗

Application instructions (verbatim)

Please submit resume and transcripts to citadelrecruitment@citadel.com.

This source's terms don't allow us to republish the full ad; read it at the original posting. Signed-in applicants see the full text on their fit page.

National Labor Exchange (state job banks, via usnlx.com search) swa live

first seen 2026-09-26 · posted 2026-09-18

Original posting ↗

Application instructions (verbatim)

Please submit resume and transcripts to citadelrecruitment@citadel.com.

This source's terms don't allow us to republish the full ad; read it at the original posting. Signed-in applicants see the full text on their fit page.

State job banks via NLx, all orders (NY, CA, TX, GA, FL) swa live

first seen 2026-09-28 · posted 2026-09-19

Original posting ↗

Application instructions (verbatim)

Please submit resume and transcripts to citadelrecruitment@citadel.com.

Full posting text

Software Engineer
Citadel Securities Americas Services LLC — New York, NY

Software Engineer positions offered by Citadel Securities Americas Services LLC (New York, New York). Design and build software components that power proprietary options trading platforms, with a focus on order entry, execution, and exchange connectivity. Develop high-performance, low-latency systems supporting order routing, risk controls, and real-time market data processing. Enhance core trading infrastructure to improve scalability, resiliency, and execution performance while supporting new products and trading strategies. Collaborate closely with traders, quantitative researchers, and technology teams to design, implement, and deploy reliable, high-quality trading solutions. Provide day-to-day support for production trading applications and the underlying infrastructure. Requires a Bachelors or foreign equivalent degree in Computer Science, Engineering, or a related field. Education, training, or experience must include: o Object-oriented programming and design; o End-to-end software development;o C, C++, C#, Java, Python, or Perl;o Statistical analysis;o Data structures, algorithms, and computer architecture; ando Machine Learning techniques. Experience may be, but need not be, acquired concurrently.We are offering a salary range of $255,000 to $295,000. Please submit resume and transcripts to citadelrecruitment@citadel.com. Reference Job ID: 10505716

State job banks via NLx, all orders (NY, CA, TX, GA, FL) swa live

first seen 2026-09-28 · posted 2026-09-18

Original posting ↗

Application instructions (verbatim)

Please submit resume and transcripts to citadelrecruitment@citadel.com.

Full posting text

Software Engineer
Citadel Securities Americas Services LLC — New York, NY

Software Engineer positions offered by Citadel Securities Americas Services LLC (New York, New York). Design and build software components that power proprietary options trading platforms, with a focus on order entry, execution, and exchange connectivity. Develop high-performance, low-latency systems supporting order routing, risk controls, and real-time market data processing. Enhance core trading infrastructure to improve scalability, resiliency, and execution performance while supporting new products and trading strategies. Collaborate closely with traders, quantitative researchers, and technology teams to design, implement, and deploy reliable, high-quality trading solutions. Provide day-to-day support for production trading applications and the underlying infrastructure. Requires a Bachelors or foreign equivalent degree in Computer Science, Engineering, or a related field. Education, training, or experience must include: o Object-oriented programming and design; o End-to-end software development;o C, C++, C#, Java, Python, or Perl;o Statistical analysis;o Data structures, algorithms, and computer architecture; ando Machine Learning techniques. Experience may be, but need not be, acquired concurrently.We are offering a salary range of $255,000 to $295,000. Please submit resume and transcripts to citadelrecruitment@citadel.com. Reference Job ID: 10505716

Why we think this is a PERM ad (100% confidence): Rules: PERM-form signals: offered_position_form, foreign_equivalent, experience_must_include, mail_resume, reference_code, short_terse