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Software Engineer

Ansatz Capital · New York

Extracted from the posting

Base
$150,000 – $250,000
Remote
On-site
Stack
C++, Python, Linux, AWS

Software engineer role at a lean quantitative trading startup building scalable trading applications and infrastructure, with daily or more frequent releases. Work spans hardware drivers, TCP/multicast handlers, and Python interfaces, with latency-focused optimization. Stack is C++20 on Linux with a Python layer, and the codebase uses lock-free multi-threaded communication.

We are looking for a

software engineer

to join a lean and technical quantitative trading startup. You’ll be responsible for developing and maintaining scalable trading applications and infrastructure for many financial markets and assist with developing the full stack of infrastructure to support trading operations.  The role is fast paced, with daily or even more frequent release cycles, and requires a good sense of prioritization between longer and shorter term needs.


Within our systems, from hardware drivers to TCP/multicast handlers to Python interfaces, each layer requires custom optimization for latency, bandwidth, or both. An understanding of trade-offs in terms of clock cycles and CPU cache effects is a must.  Multi-core/multi-threaded communications using lock-free algorithms will be employed to increase the theoretical computational limit per unit time; consequently, the candidate should have a good grasp of run-time behavior, serialization delays, and asymptotic behavior in this environment. Compensation consists of base salary, discretionary performance bonus, and possible participation in longer-term incentive schemes.

Skill Requirements

  • C++11 and higher experience
  • Excellent design and debugging skills
  • Experience developing for production critical systems
  • Excellent communication and prioritization skills

Technical Details About Us

  • Linux shop running modern kernels
  • C++20 codebase, Python layer on top
  • Technical expertise throughout (everyone programs)
  • Cloud-scalable research infrastructure

Desirable Skills

  • Experience with Python
  • Experience with x86 hardware
  • Experience with performance engineering
  • Understanding of Intel Xeon pipelining and cache behavior
  • Experience with the TCP networking stack
  • Experience optimizing Linux kernels / using kernel-bypass networking
  • Experience leveraging AWS or similar cloud infrastructure

Benefits

  • Catered meals and bountiful snacks
  • Generous budget for home office equipment
  • Health / Dental / Vision / 401k
  • Fitness and wellness benefits
  • Base compensation: $150,000-250,000 with additional discretionary annual performance bonus

Technologies

C++PythonLinuxAWSTCP
Ansatz Capital
Ansatz Capital

Job details

TypeFull-time
Work ModeOn-site
LevelMid Level
Location🇺🇸New York, NY
Salary$150,000 - $250,000
PostedNov 06, 2026
Apply Now

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