Jane Street Logo

Jane Street

Senior Cybersecurity Operations Engineer (OCaml Experience)

Sorry, this job was removed at 03:29 p.m. (EST) on Thursday, Aug 20, 2026
Be an Early Applicant
In-Office
New York, NY, USA
Senior level
In-Office
New York, NY, USA
Senior level

Similar Jobs

16 Minutes Ago
Easy Apply
Hybrid
New York, NY, USA
Easy Apply
230K-270K Annually
Expert/Leader
230K-270K Annually
Expert/Leader
AdTech • Artificial Intelligence • Machine Learning • Marketing Tech • Software • Sports • Big Data Analytics
Lead Genius Sports’ basketball product portfolio, including real-time events and statistics feeds, Performance Studio, tracking-derived metrics, and data visualizations. Own the full product lifecycle, define and communicate the roadmap, prioritize investments across multiple planning horizons, establish KPIs, and drive measurable outcomes. Collaborate with engineering, design, data operations, commercial, marketing, and executive stakeholders while translating customer needs from leagues, teams, media, and betting partners into scalable B2B SaaS products.
Top Skills: AgileB2B SaasBusiness IntelligenceComputer VisionData VisualizationReal-Time Data Feeds
16 Minutes Ago
Easy Apply
Hybrid
New York, NY, USA
Easy Apply
230K-270K Annually
Senior level
230K-270K Annually
Senior level
AdTech • Artificial Intelligence • Machine Learning • Marketing Tech • Software • Sports • Big Data Analytics
Lead the American Football product portfolio, including real-time events feeds, statistics feeds, Performance Studio, and next-generation analytics and visualizations. Own the full product lifecycle, define roadmaps and KPIs, prioritize investments, and coordinate engineering, design, data operations, commercial, and marketing teams. Translate customer needs from leagues, teams, media, and betting partners into scalable B2B SaaS products while driving measurable business outcomes and innovation in sports data, analytics, and computer vision.
Top Skills: AgileB2B SaasBusiness IntelligenceComputer VisionDashboardsData AnalyticsData VisualizationLeanOkrsReal-Time Data
35 Minutes Ago
Remote or Hybrid
United States
160K-180K Annually
Senior level
160K-180K Annually
Senior level
Artificial Intelligence • Big Data • Cloud • Information Technology • Software • Big Data Analytics • Automation
Design and deploy production AI assistants, copilots, agents, RAG systems, and workflow automation using enterprise data. Build AI backend services, APIs, microservices, and AWS serverless workflows; integrate enterprise platforms; implement observability, responsible AI, human-in-the-loop controls, and traceability. Partner with Data, IT, and business teams to improve operational processes and decision-making while managing production incidents, model rollbacks, performance, accuracy, and cost.
Top Skills: AirflowAmazon Api GatewayAmazon BedrockAmazon EventbridgeAmazon S3AnthropicAws LambdaAws SagemakerAws Step FunctionsAzureCi/CdDbtGeminiGoMcpMlflowMlopsN8NOauthOpenaiPgvectorPythonRagRbacSalesforceSemantic RetrievalServicenowSnowflakeSnowflake Cortex SearchSnowflake Ml RegistrySnowparkSsoTypescriptVector SearchWeights & Biases
Lead design and implementation of advanced cybersecurity architecture in OCaml. Provide technical leadership and mentorship, drive cross-functional security strategy, build automated security orchestration, and respond to high-stakes incidents using EDR and SIEM. Develop and maintain alerting and monitoring with Elasticsearch and ElastAlert and program on Linux using shell scripting and Python.
The summary above was generated by AI
Senior Cybersecurity Operations Engineer

OCaml Experience

Jane Street Group, LLC  has multiple openings for the position of Senior Cybersecurity Operations Engineer in New York, NY.

The position duties are as follows: Lead the strategic design and implementation of advanced cybersecurity architecture to proactively defend against complex threats and emerging attack vectors. Day-to-day job duties include: 

  • Architect the development of sophisticated security systems and frameworks in OCaml, driving technical decisions that establish the foundation for the organization's security posture and ensuring scalable, resilient protection across all critical infrastructure; 
  • Provide technical leadership in designing cutting-edge cybersecurity solutions, mentoring junior team members and establishing engineering best practices that enable proactive threat identification and rapid incident containment across complex distributed systems; 
  • Drive cross-functional security strategy by partnering with stakeholders to assess risks, establish security governance frameworks, and lead the design of comprehensive cybersecurity solutions that align with business objectives; and 
  • Spearhead operational efficiency initiatives by designing automated security orchestration platforms and leading the transformation of manual processes into self-healing security systems that scale with organizational growth. 

The position requires five (5) years of progressively responsible experience as a cybersecurity engineer or similar occupation at a financial services or technology firm. Experience must include:

  • Five (5) years of experience responding to cybersecurity incidents in a high-stakes, time-sensitive environment where downtime directly impacts revenue, including experience with EDR tools and SIEM platforms for threat investigation and triage; 
  • Two (2) years of experience contributing to security tool development in OCaml — including incident response automation, threat detection, and security orchestration — with hands-on experience designing, implementing, and maintaining alerting and monitoring solutions using Elasticsearch and ElastAlert; 
  • Five (5) years of experience responding to cybersecurity threats targeting financial institutions, including phishing/credential theft, business email compromise (BEC), ransomware, and supply chain attacks, impersonation, and insider threat; and
  • Five (5) years of experience programming on the Linux platform, including shell scripting, Python, and network security monitoring tools.
  • All technical requirements for this role may be subject to employer conducted testing to assess minimum proficiency.

Part time telecommuting may be permitted with manager approval.

Ref. SCOE26

HQ

Jane Street New York, New York, USA Office

250 Vesey Street, New York, NY, United States, 10281

What you need to know about the NYC Tech Scene

As the undisputed financial capital of the world, New York City is an epicenter of startup funding activity. The city has a thriving fintech scene and is a major player in verticals ranging from AI to biotech, cybersecurity and digital media. It also has universities like NYU, Columbia and Cornell Tech attracting students and researchers from across the globe, providing the ecosystem with a constant influx of world-class talent. And its East Coast location and three international airports make it a perfect spot for European companies establishing a foothold in the United States.

Key Facts About NYC Tech

  • Number of Tech Workers: 549,200; 6% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Capgemini, Bloomberg, IBM, Spotify
  • Key Industries: Artificial intelligence, Fintech
  • Funding Landscape: $25.5 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Greycroft, Thrive Capital, Union Square Ventures, FirstMark Capital, Tiger Global Management, Tribeca Venture Partners, Insight Partners, Two Sigma Ventures
  • Research Centers and Universities: Columbia University, New York University, Fordham University, CUNY, AI Now Institute, Flatiron Institute, C.N. Yang Institute for Theoretical Physics, NASA Space Radiation Laboratory

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account