Senior Software Engineer | Research Tech | Experienced Hire at Susquehanna International Group, LLP
Bala Cynwyd (Philadelphia Area), PA
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Jun 30, 2026
Bala Cynwyd (Philadelphia Area), PA
Jul 21, 2026
What this job asks for AI summary
A senior engineering role on a research technology team at a quantitative trading firm, focused on building and maintaining the applications, services, and platforms that quantitative researchers and traders use daily. Work spans full-stack development — backend services in C# and .NET, Python data pipelines, and React frontends — covering areas such as stock basket analysis, news aggregation, and production infrastructure. Close day-to-day collaboration with researchers and traders is central to the role.
Senior level · 5+ years · Philadelphia-Camden-Wilmington, PA-NJ-DE-MD · Bachelor's required · Full-time
“or” means any one of them counts — you don't need all of them.
We read this from the posting text with AI. Skim the description below before ruling yourself out.
How this req sits in the market our data
Roughly 490 people in the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD area plausibly meet what this posting asks for (software developers). range 370–630
Applicant volume Moderate — A normal amount of company. The rare requirements below are what will separate a shortlisted application from the rest.
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $135,966 (middle half $106,205–$168,771).
Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Jul 28, 2026. It is a model, not a headcount.
Why we read it this way (5)
The posting is tagged '#LI-Onsite', confirming this is an on-site role. No location is explicitly named in the JD text, but Susquehanna International Group (SIG) is headquartered in Bala Cynwyd, PA, within the Philadelphia CBSA — used here as the inferred location.
The degree requirement is a hard gate: 'A minimum of a Bachelor's degree in Computer Science, Computer Engineering, Mathematics, Physics, or a related technical field.'
React is listed in the requirements section with the qualifier 'or other modern JavaScript frameworks'; Angular and Vue are captured as alternatives. JavaScript appears separately in the stack description ('React and JavaScript frontends') and is marked preferred rather than a distinct hard gate.
.NET is mentioned in the narrative stack description ('C# and .NET backend services') rather than the requirements block, so it is marked preferred.
No compensation figures are provided in the posting.
Read the full posting
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