Every cancer patient deserves access to treatment options. Massive Bio is an AI-powered precision medicine platform transforming how cancer patients discover and access clinical trials by eliminating the barriers of geography, financial constraints, and information asymmetry that have historically limited enrollment.
Founded in 2015 and headquartered in US, Massive Bio is scaling its impact globally by powering operations across multiple countries and bringing innovative cancer treatment options to a rapidly growing and diverse population of patients. Through our proprietary AI platform, we connect individuals to clinical trials worldwide and partner with leading pharmaceutical companies, contract research organizations (CROs), and healthcare systems to accelerate drug development and expand equitable access to cutting-edge therapies.
We're recognized as a leader in health-tech innovation. Massive Bio was featured as #4 in Fast Company's Startup 100 list for Turkey and has raised $24M total funding from impact-driven investors including Revo Capital, the International Finance Corporation, and Cavendish Impact Foundation, validating both our business model and our mission-driven approach.
Position Overview
The ideal candidate will be responsible for HR operations and administration across our global workforce, with deep expertise in Turkish labor law and working knowledge of international HR practices including US employment and contractor management in LATAM and EU. This role requires a proactive, ownership-driven approach to human resources management and operational efficiency, ensuring compliance across multiple jurisdictions while supporting seamless day-to-day HR functions.
Key Responsibilities
HR Administration & Employee Management
- Maintain and update employee records, contracts, and HR documentation in compliance with Turkish labor laws, US regulations, and company policies
- Manage payroll coordination across multiple systems including Gusto (US) and Kolay IK (Turkiye) and Deel, ensuring accurate and timely processing through third-party payroll providers
- Handle employee time-tracking, leave management, and attendance records across all regions
- Coordinate employee benefits programs and assist employees with related inquiries
- Support performance management processes by assisting with reviews, feedback collection, and performance improvement plans
- Address employee concerns and escalate issues to HR leadership when necessary
- Facilitate employee training sessions and professional development initiatives
Process Improvement & Compliance
- Ensure compliance with Turkish labor laws (İş Kanunu, SGK requirements) and maintain awareness of US federal/state employment regulations
- Support contractor management and compliance for international team members, particularly in Latin America
- Implement process improvements to enhance workflow efficiency across HR and operations
- Assist in audits and inspections by maintaining organized personnel records and compliance documentation
- Maintain accurate payroll expense tracking and reporting across all entities
Recruitment & Talent Acquisition
- Assist in domestic and international recruitment processes, including job postings, screening resumes, coordinating interviews, and onboarding new hires
- Support full-cycle recruiting with various interview techniques and evaluation methods
- Utilize LinkedIn Talent Solutions and professional networks for proactive candidate sourcing
Qualifications
- Bachelor's degree in Human Resources, Business Administration, or related field
- Minimum 3 years of experience in human resources and HR operations in Turkey
- Strong command of Turkish labor legislation, SGK processes, and payroll regulations
- Working knowledge of US employment practices and international contractor management
- Experience with HRIS and payroll systems; familiarity with Gusto and Kolay IK preferred
- Fluency in Turkish and English (professional fluency required)
- Familiarity with KVKK (personal data protection), health & safety regulations, and information security procedures
- Proficiency in Applicant Tracking Systems and familiarity with LinkedIn for talent acquisition
- Takes extreme ownership of responsibilities with a proactive, self-starter mindset
- Strong organizational skills with ability to manage multiple priorities across time zones
- Proficiency in Microsoft Office Suite and operational tools
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What We Do
Increasing Accessibility to Clinical Trials and Personalized Cancer Treatment Options. Every cancer patient is different and deserves treatment of the highest quality that is personalized, affordable, and easily accessible. Massive Bio translates the world-class oncology knowledge of the large cancer centers' experts, facilitates a virtual tumor board collaboratively with the treating oncologist, and advises the patient and treating oncologist to operationalize these expert recommendations at the point of care thereby, eliminating additional time, travel, and cost. 85% of US cancer patients receive treatments in community practices where treating oncologists are overwhelmed with the influx of new tests and treatments while trying to manage their busy practices. We believe all cancer patients deserve equal access to the latest in cancer research and treatment
