Summary
Overview
Work History
Education
Skills
Affiliations
Languages
Timeline
Therapeutic and Modality Experience
Generic

Chamara Jayesinghe

Boston,MA

Summary

Strategic biopharmaceutical portfolio and program management executive with 15+ years of experience leading complex cross-functional drug development programs across biotechnology, pharmaceutical, and venture-backed organizations. Proven track record building and leading portfolio management capabilities, driving enterprise-wide governance, strategic planning, operational execution, and resource prioritization across diverse therapeutic portfolios and advanced therapeutic modalities.

Extensive expertise spanning translational medicine, preclinical development, IND-enabling activities, clinical-stage execution, commercialization planning, alliance management, and organizational strategy. Recognized for enabling executive decision-making, aligning complex stakeholder groups, operationalizing portfolio governance frameworks, and leading high-performing matrixed teams in fast-paced and highly innovative environments.

Experienced advisor and partner to executive leadership teams, boards, and external collaborators with deep expertise in oncology, immunology, autoimmune disease, cardiovascular disease, hematology, liver disease, cell and gene therapy, antibodies, and RNA therapeutics.

Overview

8
8
years of professional experience

Work History

Senior Director, Program Leadership

Aditum Bio
Cambridge, MA
05.2025 - Current
  • Serve as Program Team Lead responsible for long-term portfolio strategy, program governance, and development execution across Celexor Bio and Kalexo Bio portfolio companies.
  • Lead cross-functional portfolio planning activities integrating scientific, operational, financial, and competitive landscape insights into executive decision-making and strategic prioritization.
  • Drive development strategy from due diligence through early development, enabling optimized clinical and operational planning across complex therapeutic programs.
  • Partner with executive leadership and functional leaders to establish strategic objectives, portfolio priorities, resource allocation strategies, and organizational execution plans.
  • Develop and operationalize governance frameworks, KPI tracking systems, and integrated program management processes supporting portfolio advancement and corporate objectives.
  • Lead alliance execution and external partner engagement while serving as primary strategic interface across collaborating organizations.
  • Build and foster high-performing cross-functional teams focused on accountability, alignment, operational rigor, and execution excellence.
  • Proactively identify strategic, operational, and development risks while implementing mitigation and contingency planning frameworks.
  • Accountable for managing budget/ long-range portfolio planning of >$100M (Kalexo Bio and Celexor Bio), financial forecasting, and resource allocation activities to enable portfolio optimization and strategic growth.
  • Partner with executive leadership and communications teams to develop strategic messaging, stakeholder communications, and executive updates.
  • Monitor and synthesize competitive landscape intelligence and emerging clinical data to inform evolving portfolio strategy and investment decisions.

Cell Therapy and CAR-T Consultant

Third Rock Ventures
Cambridge, MA
07.2024 - 05.2025
  • Advised venture-backed biotechnology NewCos on portfolio strategy, program governance, development planning, operational build-out, and organizational design.
  • Evaluated therapeutic portfolios, competitive landscapes, commercialization opportunities, valuation scenarios, and strategic resource planning initiatives.
  • Supported program leadership and portfolio management activities across cell therapy and advanced therapeutic programs.
  • Delivered executive-level strategic recommendations to founders, and senior leadership teams regarding portfolio prioritization and operational execution.

Senior Director, Head of Portfolio Management

Immunitas Therapeutics
Waltham, MA
11.2023 - 05.2025
  • Built and led the company’s Program and Portfolio Management function, establishing portfolio governance, competitive intelligence, alliance management, market analysis, and operational execution capabilities across the organization.
  • Directed strategic portfolio planning and cross-functional execution for IMT-009 and the company’s broader immunology and immuno-oncology pipeline.
  • Served as a strategic advisor to executive leadership, enabling portfolio prioritization, tradeoff decisions, and long-range development planning.
  • Led development and implementation of portfolio management best practices, operational frameworks, governance structures, budget management (~$30M) and integrated development processes.
  • Functioned as a key integration point between executive leadership and program teams to ensure organizational alignment and strategic execution.

Director, BEAM-201 Program Manager/ Program Leader

Beam Therapeutics
Cambridge, MA
02.2021 - 11.2023

Director, BEAM-201 Program Leader (05/23-11/23)

Director, Program Management (07/22-05/23)
Associate Director, Program Management (02/21-07/22)

  • Led BEAM-201, the first allogeneic guard-edited CAR-T program, through IND-enabling activities and transition into clinical development.
  • Directed cross-functional strategic planning and execution across Beam’s early pipeline portfolio spanning immunology, oncology, hematology, and liver disease.
  • Held enterprise-level accountability for program operations, timelines, integrated development plans, governance activities, and portfolio deliverables.
  • Developed and implemented portfolio-level operational frameworks, reporting systems, governance processes, and strategic business cases supporting executive and board-level decision-making.
  • Facilitated alignment across research, development, technical operations, regulatory, clinical, and executive leadership teams.
  • Managed integrated development planning, target product profile development, resource prioritization, and risk mitigation strategies across multiple programs.
  • Partnered with leadership to build and scale the Program Management function, including operational processes, portfolio management tools, and organizational best practices.
  • Developed quarterly Board of Directors materials, portfolio reviews, and executive communications supporting strategic decision-making.
  • Led organizational initiatives focused on inclusion, diversity, belonging, leadership development, and cross-functional collaboration.
  • Mentored and developed associates while fostering a culture of accountability, innovation, and operational excellence.

Translational Medicine Global Operations, Strategic Initiatives

Novartis
Cambridge, MA
04.2019 - 01.2021
  • Managed strategic operational planning and portfolio operations activities across a global Translational Medicine organization supporting approximately 880 FTEs.
  • Led enterprise-wide strategic initiatives, operational transformation efforts, and organizational optimization programs supporting complex drug development portfolios.
  • Partnered closely with global functional leaders to identify organizational priorities, operational gaps, and strategic opportunities aligned with enterprise objectives.
  • Directed strategic resource planning, financial governance, operational analytics, and budget management activities across global functions.
  • Developed executive portfolio reviews, KPI tracking frameworks, operational dashboards, and strategic analyses supporting leadership decision-making.
  • Led major organizational initiatives including cell and gene therapy infrastructure investment proposals, clinical operations optimization strategies, and laboratory consolidation initiatives.
  • Implemented operational and financial process improvements resulting in approximately $7 million in combined savings across FTE planning, CAPEX, and operational spend.
  • Partnered with Oncology Cell and Gene commercial teams to develop long-term strategic positioning and competitive assessments for Kymriah and emerging pipeline assets.
  • Designed analytics and operational intelligence frameworks supporting portfolio benchmarking, organizational effectiveness, and strategic planning.
  • Coached and mentored colleagues on strategic initiatives, operational excellence, and sustainable organizational improvements.
  • Led organizational culture and engagement initiatives supporting leadership alignment, collaboration, and workforce development

Program Manager, Oncology Franchise

Bluebird bio
Cambridge, MA
05.2018 - 04.2019
  • Supported portfolio governance, strategic planning, and operational execution activities across the Oncology Franchise.
  • Designed and facilitated executive leadership forums supporting portfolio decision-making, organizational alignment, and strategic prioritization.
  • Led cross-functional planning and execution activities supporting Abecma commercialization readiness and development operations.
  • Directed research-stage programs through IND/CTA-enabling activities including EBV-specific cytotoxic T-lymphocyte programs.
  • Managed alliance relationships and governance activities with external collaborators and strategic partners.
  • Led development and implementation of integrated strategic and operational program plans across internal and external programs.
  • Developed board materials, portfolio reviews, business planning analyses, and executive program updates.
  • Facilitated proactive risk identification, resource planning, operational tracking, and mitigation planning across cross-functional teams.

Education

MSc/ PGDIP - Aerospace Physiology

King’s College
London

BSc Honors - Physiology

The University of Edinburgh
Edinburgh, United Kingdom

Professional Courses - Project Management, Clinical Trials Research and Operations

Harvard Extension School
Cambridge, MA

Skills

    Portfolio Governance

    Global Portfolio Strategy

    Program Leadership

    Drug Development Strategy

    Cross-Functional Team Leadership

    Translational Medicine

    Clinical Development

    Resource Allocation

    Strategic Planning

    Portfolio Prioritization

    Executive Communications

    Board Presentations

    Alliance Management

    Budget Management

    Risk Mitigation

    Organizational Leadership

    Operational Excellence

    Change Management

    Competitive Intelligence

    Strategic Initiatives

    Development Operations

    KPI Development

    Investment Thesis Development

    Asset Due Diligence

    Scenario Planning

    Stakeholder Engagement

    Matrix Leadership

    Organizational Transformation

Affiliations

  • The Peloton Group - On Site at Novartis, Life Sciences Consultant/ Senior Consultant, (Cambridge, MA) 04/2017 - 05/2018
  • The Broad Institute of MIT and Harvard - Project Coordinator and Research Associate, (Cambridge, MA), 05/2015 - 12/2016
  • Beth Israel Deaconess Medical Center, Harvard Medical School – Research Associate, Master’s Thesis Research, (Cambridge, MA) 05/2014 - 12/2014
  • The University of Edinburgh – Research Associate, (Edinburgh, UK) 01/2013 – 06/2013

Languages

English
Native or Bilingual
Sinhalese
Native or Bilingual

Timeline

Senior Director, Program Leadership

Aditum Bio
05.2025 - Current

Cell Therapy and CAR-T Consultant

Third Rock Ventures
07.2024 - 05.2025

Senior Director, Head of Portfolio Management

Immunitas Therapeutics
11.2023 - 05.2025

Director, BEAM-201 Program Manager/ Program Leader

Beam Therapeutics
02.2021 - 11.2023

Translational Medicine Global Operations, Strategic Initiatives

Novartis
04.2019 - 01.2021

Program Manager, Oncology Franchise

Bluebird bio
05.2018 - 04.2019

MSc/ PGDIP - Aerospace Physiology

King’s College

BSc Honors - Physiology

The University of Edinburgh

Professional Courses - Project Management, Clinical Trials Research and Operations

Harvard Extension School

Therapeutic and Modality Experience

Therapeutic Areas:

  • Immuno-Oncology
  • Immunology
  • Autoimmune Disease
  • Cardiovascular Disease
  • Hematology
  • Liver Disease

Modalities:

  • Autologous CAR-T
  • Allogeneic CAR-T
  • Antibodies
  • RNA Therapeutics
  • Cell and Gene Therapy

Representative Programs:

  • Abecma (BCMA Autologous CAR-T)
  • Kymriah (CD19 Autologous CAR-T)
  • BEAM-201 (Allogeneic CAR-T)
  • IMT-009 (Antibody)
  • KLX-1101 (Divalent siRNA)
  • CLXR-901 (Antibody)
  • Multiple Early-Stage Pipeline Programs