Vesynta Vesynta is an investor-backed precision medicine company based within the London Cancer Hub. We are building clinical decision support software that personalises dosing of critical therapies at the point of care which provide clinicians with access to data-backed pharmacology models; resulting in fewer toxic side effects, and significantly improved treatment efficacy. We exist to support patients (children, but also women and those with diverse ethnic heritages) who have been traditionally under-represented and poorly served by traditional, coarse dosing methodologies. Our team is fast-paced, results-oriented, and mission-driven. The Job As a Senior Python Engineer, you will develop the core computational modules for our pharmacometrics engine. You will be a dedicated pure Python expert responsible for translating complex scientific models into production-ready software to personalise dosing for children undergoing cancer care. Key Responsibilities: - High-Performance Python: Write custom, highly efficient modules using vectorised operations (numpy, pandas, attrs) to calculate critical clinical metrics. - System Design & Integration: Engage directly with internal software design processes, actively contributing to and following Mermaid.js UML and flow charts for architecture and pipelines. - Math to Code: Read and translate advanced mathematical equations into robust code, backed by strict unit testing against hand-calculated ‘golden’ datasets. - Cross-Language APIs: Own the integration of Python models with an industry-standard R backend (via rpy2), exposing them securely through FastAPI and gRPC. The Products Our web, mobile and Electronic Health Record-integrated applications offer best-in-class actionable precision dosing insights to healthcare professionals, supporting the end-to-end process of Therapeutic Drug Monitoring and Model Informed Precision Dosing. With these, the primary users (hospital-based clinicians, pharmacists and nurses) are able to provide patients with enhanced and personalised care across several therapeutic areas including antibiotics, chemotherapeutics and immunosuppressants. Recruitment Process We conduct our entire recruitment process online to ensure fairness and accessibility for all candidates. Each stage is distinct and focuses on different attributes. The process is intended to be efficient (typically taking around 2 weeks to complete) - some stages are particularly quick to schedule and progress through. Here’s a breakdown: - Application Screening: A review of your CV by our team to assess your experience and high-level fit against the key role requirements. - Initial Screening Call: A brief introductory chat via Google Meet to discuss your background, expectations, and mutual alignment with the role. - Technical Challenge: A take-home Python coding assignment sent via email to evaluate your technical approach and problem-solving skills at your own pace. - Final Interview: A two-part session consisting of an in-depth technical evaluation (discussing hard skills and logic) and a conversational culture-fit exploration. - Selection & Offer: We make a final decision based on a comprehensive review of all stages and extend a formal offer to join the team. Recruiters Vesynta is managing this recruitment process directly and we are only accepting applications from candidates themselves. We do not accept unsolicited CVs or candidate profiles from recruitment agencies. Any unsolicited submissions will not be deemed an introduction, will not form the basis of any contractual agreement (implied or otherwise), and Vesynta will not be bound by any agency terms and conditions. We reserve the right to contact and hire any candidate whose details have been shared with us unsolicited, without any financial obligation or finder’s fee to the submitting agency.

Vesynta Vesynta is an investor-backed precision medicine company based within the London Cancer Hub. We are building clinical decision support software that personalises dosing of critical therapies at the point of care which provide clinicians with access to data-backed pharmacology models; resulting in fewer toxic side effects, and significantly improved treatment efficacy. We exist to support patients (children, but also women and those with diverse ethnic heritages) who have been traditionally under-represented and poorly served by traditional, coarse dosing methodologies. Our team is fast-paced, results-oriented, and mission-driven. The Job As a Senior Python Engineer, you will develop the core computational modules for our pharmacometrics engine. You will be a dedicated pure Python expert responsible for translating complex scientific models into production-ready software to personalise dosing for children undergoing cancer care. Key Responsibilities: - High-Performance Python: Write custom, highly efficient modules using vectorised operations (numpy, pandas, attrs) to calculate critical clinical metrics. - System Design & Integration: Engage directly with internal software design processes, actively contributing to and following Mermaid.js UML and flow charts for architecture and pipelines. - Math to Code: Read and translate advanced mathematical equations into robust code, backed by strict unit testing against hand-calculated ‘golden’ datasets. - Cross-Language APIs: Own the integration of Python models with an industry-standard R backend (via rpy2), exposing them securely through FastAPI and gRPC. The Products Our web, mobile and Electronic Health Record-integrated applications offer best-in-class actionable precision dosing insights to healthcare professionals, supporting the end-to-end process of Therapeutic Drug Monitoring and Model Informed Precision Dosing. With these, the primary users (hospital-based clinicians, pharmacists and nurses) are able to provide patients with enhanced and personalised care across several therapeutic areas including antibiotics, chemotherapeutics and immunosuppressants. Recruitment Process We conduct our entire recruitment process online to ensure fairness and accessibility for all candidates. Each stage is distinct and focuses on different attributes. The process is intended to be efficient (typically taking around 2 weeks to complete) - some stages are particularly quick to schedule and progress through. Here’s a breakdown: - Application Screening: A review of your CV by our team to assess your experience and high-level fit against the key role requirements. - Initial Screening Call: A brief introductory chat via Google Meet to discuss your background, expectations, and mutual alignment with the role. - Technical Challenge: A take-home Python coding assignment sent via email to evaluate your technical approach and problem-solving skills at your own pace. - Final Interview: A two-part session consisting of an in-depth technical evaluation (discussing hard skills and logic) and a conversational culture-fit exploration. - Selection & Offer: We make a final decision based on a comprehensive review of all stages and extend a formal offer to join the team. Recruiters Vesynta is managing this recruitment process directly and we are only accepting applications from candidates themselves. We do not accept unsolicited CVs or candidate profiles from recruitment agencies. Any unsolicited submissions will not be deemed an introduction, will not form the basis of any contractual agreement (implied or otherwise), and Vesynta will not be bound by any agency terms and conditions. We reserve the right to contact and hire any candidate whose details have been shared with us unsolicited, without any financial obligation or finder’s fee to the submitting agency.

• Access Architecture and Design: Design, implement, and manage the IAM infrastructure, including identity provisioning, authentication, and authorization systems. Develop and maintain the overall IAM roadmap and architecture, ensuring alignment with organizational security policies and business objectives • Access Role Design and Management: Design and document granular access roles and policies based on the principle of least privilege. Collaborate with business units to define and manage role-based access control (RBAC) and attribute-based access control (ABAC) models. Conduct regular reviews and clean-up of access roles to maintain security posture and compliance • Infrastructure Provisioning and Least Privilege Enforcement: Design and implement secure infrastructure provisioning mechanisms using tools like Terraform or equivalent, ensuring all resources are provisioned with security best practices. Implement and enforce least privilege principles across cloud environments and on-premises systems. Automate the enforcement of security controls and access policies for infrastructure components • Support Business Growth and Scalability: Ensure the IAM solutions are scalable and resilient to support rapid business growth and expansion into new markets or services. Integrate new applications and services into the centralized IAM platform, focusing on seamless and secure user experience. Provide technical guidance and support for IAM-related projects and initiatives • Operations and Compliance: Monitor and troubleshoot IAM system performance and availability. Ensure all IAM processes and systems comply with regulatory requirements (e.g., SOC 2, ISO 27001, SOX). Develop and maintain comprehensive documentation for all IAM systems and processes, including the IAM Design Document File

• Lead application security testing and assessment efforts across a complex DoD application portfolio • Serve as the technical authority for SAST, DAST, and penetration testing operations • Mentor junior engineers and drive secure development lifecycle improvements program-wide • Collaborate directly with the Cybersecurity Architect on secure SDLC strategy and AppSec governance • Influence how security is embedded across the development pipeline from design through deployment • Lead SAST operations using Fortify and own findings triage and remediation tracking • Oversee SonarQube continuous code security analysis and quality gate governance • Lead DAST execution and runtime vulnerability assessment activities • Plan, lead, and execute penetration testing engagements • Lead secure code review processes and mentor developers on remediation • Own application vulnerability remediation tracking and verification • Develop and maintain application security assessment and pen test report standards • Drive secure development lifecycle compliance across assigned application portfolios • Mentor junior and mid-level AppSec engineers • Serve as AppSec liaison to the Cybersecurity Architect on SDLC security strategy