Quantitative Developer

Janus Henderson Investors

$110K — $125K *
Finance & Insurance
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years building enterprise-quality quantitative models for asset management.
  • Proven experience deploying and monitoring large-scale quantitative models in production.
  • Strong familiarity with software development life cycle (SDLC) practices.
  • Proficient in using modern AI tools for coding support.
  • Extensive experience documenting model implementations.

Responsibilities

  • Collaborate with PMs to translate ideas into quantitative models and portfolio strategies.
  • Enhance the research platform through data ingestion, back testing, and portfolio analysis.
  • Manage the multi-asset data layer with a focus on quality control.
  • Utilize AI coding agents for daily development tasks and provide feedback on their usage.
  • Develop AI-based tools that improve research workflows and client reporting.
  • Produce reliable code that other quant analysts can depend on for further development.
  • Mentor teammates in effective AI-based engineering techniques.

Benefits

  • Hybrid work environment with accommodations for flexibility.
  • Generous holiday and paid volunteer time policies.
  • Professional development support including tuition reimbursement.
  • Parental leave and family services offered.
  • Access to wellness programs like Headspace and ClassPass.
  • Engaging company events and unique challenges for employee participation.
  • Complimentary snacks, beverages, and social events like happy hours.
Full Job Description
  • Partner with asset allocation PMs and researchers to take ideas from notebook to production: signals, CMAs, optimization, portfolio construction, rebalancing rules, and attribution.
  • Build and extend the team's research platform: data ingestion, back testing, scenario analysis, portfolio construction, monitoring, and reporting.
  • Own the multi-asset data layer: market data, macro, fundamentals, fund and index data, internal holdings, with quality control the PMs actually trust.
  • Use AI coding agents daily for prototyping, refactoring, testing, review, and documentation. Bring opinions on where they help and where they hurt.
  • Build internal AI-backed tooling for the team where it earns its keep: research workflows, client-reporting drafts, commentary support, meeting prep.
  • Write production code that other quants want to build on. Own reliability, testing, and observability for what you ship.
  • Mentor teammates on effective AI-augmented engineering practice.
  • Carry out other duties as assigned


What to expect when you join our firm

  • Hybrid working and reasonable accommodations
  • Generous Holiday policies
  • Paid volunteer time to step away from your desk and into the community
  • Support to grow through professional development courses, tuition/qualification reimbursement and more
  • Maternal/paternal leave benefits and family services
  • Complimentary subscription to Headspace - the mindfulness app
  • Corporate membership to ClassPass and other health and well-being benefits
  • Unique employee events and programs including a 14er challenge
  • Complimentary beverages, snacks and all employee Happy Hours


Must have skills

  • Have built industrial-scale enterprise-quality quantitative/systematic models based on specs provided by PM's.
  • Have deployed quantitative/systematic models to production at non trivial size. Have monitored operational performance of these models and taken ownership of making sure the models behave properly
  • Are familiar with the SDLC (eg testing/deployment)
  • Are heavy users of modern AI tools (claude code/codex/opencode/pi/ampcode/factory droid/cursor/cline)
  • Have written extensive documentation about the implementation of a model.


Nice to have skills

  • Working knowledge of financial markets preferred
  • Knowledge of Excel preferred
  • Github (or other version control), CI/CD and/or cloud services experience is beneficial
  • Excellent interpersonal, relationship building and customer service skills
  • Strong econometrics and statistics background, experience in asset pricing empirical work
  • Passionate about financial markets with a curiosity about investing


Supervisory responsibilities

  • No


Potential for growth

  • Mentoring
  • Leadership development programs
  • Regular training
  • Career development services
  • Continuing education courses


Compensation information

The base salary range for this position is $110,000 - $125,000. This range is estimated for this role. Actual pay may be different. This position will be open through June 30, 2026.

Colorado law requires an estimated closing date for job postings. Please don't be discouraged from applying if you see this date has passed.

Annual Bonus Opportunity: Position may be eligible to receive an annual discretionary bonus award from the profit pool. The profit pool is funded based on Company profits. Individual bonuses are determined based on Company, department, team and individual performance.

Benefits: Janus Henderson is committed to offering a comprehensive total rewards package to eligible employees that includes; competitive compensation, pension/retirement plans, and various health, wellbeing and lifestyle benefits. To learn more about our offerings please visit the Why Join Us section on the career page here.

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