Lead Data Scientist, Credit Risk — Strategic ML Leader

Harnham; Phoenix (AZ); On-site; USD 140,000 - 150,000; Full time

Job summary

Harnham in Phoenix seeks a senior Data Scientist to lead development, validation, and deployment of advanced quantitative models within a regulated environment. You will partner with business and executive stakeholders to quantify outcomes and drive data‑driven decisions.

The role requires 8+ years in data science or risk analytics, strong Python/SQL, and experience with gradient boosting and model governance. In-office 4 days per week in NW Phoenix.

Qualifications

• 8+ years of experience in Data Science, Quantitative Analytics, Risk Analytics, or a related discipline.
• Advanced proficiency in Python and SQL.
• Strong expertise in data modelling, statistical analysis, and quantitative problem solving.
• Experience developing and evaluating gradient boosting and other predictive modelling techniques.
• Proven ability to independently own and drive complex analytical projects.
• Exceptional communication and presentation skills, including experience presenting to executive audiences.
• Demonstrated experience defending models during audits, reviews, or governance assessments.
• Background in financial or risk modelling within a regulated industry.

Responsibilities

• Design, develop, validate, and monitor advanced predictive and risk models.
• Analyse large-scale financial, transactional, and customer datasets.
• Apply machine learning and statistical techniques to solve complex business problems.
• Translate model insights into measurable financial impact and business recommendations.
• Lead analytics initiatives from problem definition through implementation and performance tracking.
• Present technical findings and strategic recommendations to senior leadership and executive stakeholders.
• Support model governance activities, regulatory reviews, and external audit processes.
• Collaborate with cross-functional teams to ensure models are aligned with business objectives and compliance requirements.
• Provide technical guidance and mentorship to peers and junior team members.

Skills

Python

SQL

Statistical analysis

Machine learning

Risk modelling

Executive communication

Education

Bachelor's degree in quantitative field

Master's degree in Data Science/Applied Math or related

Tools

Gradient boosting

Job description

Harnham in Phoenix seeks a senior Data Scientist to lead development, validation, and deployment of advanced quantitative models within a regulated environment. You will partner with business and executive stakeholders to quantify outcomes and drive data‑driven decisions.

The role requires 8+ years in data science or risk analytics, strong Python/SQL, and experience with gradient boosting and model governance. In-office 4 days per week in NW Phoenix.