Senior Data Scientist

Justera Group; Solna kommun; Hybrid; SEK 900,000 - 1,200,000; Full time

Benefits offered by this job

Flexible hybrid work

25 days annual leave

Competitive compensation

Professional development

Cross-functional collaboration

Exposure to robotic technologies

Job summary

Justera Group is seeking an experienced Senior Data Scientist to support model validation activities within a highly regulated financial environment. You will bring strong expertise in IFRS 9, ECL methodologies, and advanced analytical modeling to ensure robust validation and governance.

You will collaborate with risk, finance, and analytics teams, prepare validation documentation, and contribute to evolving validation frameworks.

Qualifications

• Proven experience as a Data Scientist in complex analytical environments.
• Strong expertise in advanced statistical methods and ML techniques.
• In-depth knowledge of credit risk concepts and IFRS 9 regulatory frameworks.
• Experience with ECL model development and/or independent validation.

Responsibilities

• Perform independent validation of credit risk and IFRS 9 ECL models per regulatory requirements.
• Assess model design, methodology, assumptions, implementation and performance using advanced techniques.
• Evaluate robustness, stability and predictive power across portfolios and scenarios.
• Identify limitations and provide actionable recommendations to strengthen governance.
• Collaborate with risk, finance, and analytics to communicate validation outcomes.

Skills

Advanced statistics

Machine learning

Credit risk concepts

Model validation

Job description

About Justera GroupJustera Group AB is a leading Swedish IT consulting firm with great experience specializing in building high-performing technology teams and delivering end-to-end IT solutions. Led by dynamic female executives, Justera Group focuses on helping businesses harness the power of digital technologies to continuously evolve in today’s rapidly changing economy. The company has deep expertise in IT consultancy, software development, and recruitment services, providing clients with purpose-driven, well-trained consultants who consistently deliver efficient and effective results. Justera Group manages the entire talent lifecycle, from hiring to ongoing management, ensuring the right fit for each project on time and within budget. With their strong commitment to quality, collaboration, and client success, Justera Group is a trusted partner for technology innovation across Sweden.

About the Role

An exciting opportunity is available for an experienced Senior Data Scientist to support model validation activities within a highly regulated financial environment. The successful candidate will bring strong expertise in IFRS 9, Expected Credit Loss (ECL) methodologies, and advanced analytical modeling, combined with a solid understanding of the regulatory and accounting frameworks governing these models.

Key Responsibilities

• Perform independent validation of credit risk and IFRS 9 Expected Credit Loss (ECL) models in accordance with applicable regulatory and accounting requirements.
• Assess model design, methodology, assumptions, implementation, and performance using advanced statistical and machine learning techniques.
• Evaluate model robustness, stability, predictive power, and appropriateness across relevant portfolios and scenarios.
• Identify model limitations and provide clear recommendations to strengthen model effectiveness and governance.
• Collaborate with stakeholders across risk, finance, and analytics functions to communicate validation outcomes and support remediation activities.
• Prepare high-quality validation documentation and reports aligned with internal standards and regulatory expectations.
• Contribute to the ongoing enhancement of model validation frameworks, methodologies, and best practices.

Requirements

• Proven experience working as a Data Scientist in a complex analytical environment.
• Strong expertise in advanced statistical methods and machine learning techniques.
• In-depth knowledge of credit risk concepts and IFRS 9 regulatory and accounting frameworks.
• Demonstrated experience in ECL model development and/or independent model validation.
• Strong analytical and problem-solving capabilities, with the ability to challenge and assess complex models objectively.
• Excellent written and verbal communication skills.
• Professional proficiency in English.

Preferred Qualifications

• Previous experience within banking, financial services, or other highly regulated industries.
• Familiarity with model risk management principles and validation best practices.
• Experience working with large and complex datasets in enterprise environments.

What We Offer

• A dynamic and innovative workplace, driving advancements in cutting-edge robotic technologies
• The opportunity to collaborate with talented cross-functional teams on meaningful and impactful projects
• Competitive compensation and a comprehensive benefits package
• A supportive culture that fosters continuous learning, growth, and professional development
• Flexible hybrid working model for an optimal work-life balance
• 25 days of annual leave to recharge and relax