Senior Manager, ML Ops & Observability Engineer
- Greece-Thessaloniki Chortiatis

Our Purpose
Our Values
Pfizer Digital
Benefits
Use Your Power for Purpose
Do you want to make a global impact on patient health? Do you thrive in a fast-paced environment that integrates scientific, clinical, and commercial domains through engineering, data science, and AI. Join Pfizer Digital’s Commercial Creation Center & CDI organization (C4) to leverage cutting-edge technology for critical business decisions and enhance customer experiences for colleagues, patients, and physicians. Our team of engineering, data science, and AI professionals is at the forefront of Pfizer’s transformation into a digitally driven organization, using data science and AI to change patients’ lives, leading process and engineering innovations to advance AI and data science applications from prototypes and MVPs to full production.
What You Will Achieve
MLOps Platform Execution & Model Operations
Lead the design, implementation, and operation of MLOps platforms supporting model development, deployment, monitoring, and lifecycle management.
Own production workflows for:
Model packaging and deployment
Versioning and rollback
Promotion across environments (dev/test/prod)
Implement standardized CI/CD pipelines for ML workloads, integrating with enterprise DevOps and infrastructure platforms.
Partner with infrastructure and DataOps teams to ensure ML workloads run on secure, scalable, and cost-effective cloud-native environments (AWS/Azure).
Translate Director-level AI platform strategy into reliable, repeatable ML operational capabilities.
Model, Data & System Observability
Own end-to-end observability for ML systems, spanning:
Model performance and behavior
Data quality and drift
Pipeline health and system reliability
Implement and operate observability tooling using:
OpenTelemetry for distributed tracing
Metrics and dashboards (Prometheus, Grafana)
Logs and analytics (ELK or equivalent)
Define and track ML-specific reliability signals, such as:
Model performance degradation
Data drift and feature anomalies
Prediction latency and failure rates
Establish SLOs and alerting strategies for ML services in production.
Testing, Validation & Responsible AI Enablement
Ensure testing and validation are embedded throughout the ML lifecycle, including:
Model validation and regression testing
Data and feature consistency checks
Deployment verification and rollback testing
Integrate automated ML testing and quality gates into CI/CD pipelines.
Support non-functional testing for ML systems, including:
Performance and scalability testing
Reliability and resilience testing
Security and access validation
Partner with AI, data, and compliance teams to support responsible and compliant AI operations, including auditability, traceability, and explainability hooks (where required).
AI Platform Enablement & Cross‑Team Collaboration
Enable data scientists and ML engineers to move models from experimentation to production efficiently and safely.
Provide reusable tooling, templates, and paved paths for:
Experiment tracking
Model registry usage
Deployment and monitoring patterns
Collaborate closely with:
Infrastructure Engineering (runtime, scaling, security)
DataOps Engineering (data pipelines, feature stores, data quality)
Product and analytics leaders to align ML capabilities to business outcomes
Reliability, Incident Management & Continuous Improvement
Own operational reliability for ML platforms and services.
Lead response to ML-related production incidents, including:
Model failures or degradations
Data drift–driven issues
Pipeline or inference outages
Conduct post-incident reviews and drive systemic improvements.
Continuously improve MLOps maturity using SRE-inspired practices and metrics.
People Leadership & Engineering Ways of Working
Set clear expectations for operational ownership, quality, and delivery.
Coach engineers on:
MLOps best practices
Observability and reliability mindset
Secure and compliant AI operations
Establish strong engineering discipline through design reviews, runbooks, documentation, and continuous learning.
Act as the primary execution partner to the Director-level Commercial AI Analytics Solutions & Engineering Lead for ML operations and observability.
Here Is What You Need (Minimum Requirements)
BA/BS with 6+ years of experience in ML engineering, MLOps, platform engineering, or related roles.
Strong hands-on experience operationalizing ML systems in AWS or Azure environments.
Proven expertise in:
MLOps pipelines and tooling (experiment tracking, model registry, deployment, monitoring)
CI/CD for ML workloads (e.g., GitHub Actions or equivalent)
Containerized and cloud-native ML runtimes
Solid understanding of testing and validation for ML systems, including:
Model regression and performance testing
Data and feature validation
Deployment and rollback verification
Strong experience implementing observability and reliability practices using tools such as OpenTelemetry, Prometheus, Grafana, and ELK.
Demonstrated experience with DevSecOps and secure SDLC for AI/ML systems, including secrets management and access controls.
Proficiency in programming and scripting (e.g., Python, Bash, SQL; familiarity with ML frameworks).
Strong communication and collaboration skills; ability to deliver outcomes through teams and influence cross-functionally.
Proven leadership abilities.
Bonus Points If You Have (Preferred Requirements)
Master's degree in Computer Science, Data Science, AI/ML, or related field.
Experience with MLOps platforms and tools (e.g., MLflow, Kubeflow, feature stores).
Background in data drift detection, model monitoring, and ML reliability engineering.
Familiarity with responsible AI, governance, or regulated environments.
Relevant certifications:
AWS/Azure Professional
Kubernetes (CKA/CKAD)
Cloud security or data/AI platform certifications.
Experience using common AI tools, including generative technologies such as ChatGPT or Microsoft Copilot, to support problem solving and enhance productivity. Demonstrated curiosity for exploring how these tools can improve outcomes and understanding of responsible AI practices, including risk management and ethical use.
Please apply by sending your CV in English.
Work Location Assignment: Hybrid
Purpose
Breakthroughs that change patients' lives... At Pfizer we are a patient centric company, guided by our four values: courage, joy, equity and excellence. Our breakthrough culture lends itself to our dedication to transforming millions of lives.
Digital Transformation Strategy
One bold way we are achieving our purpose is through our company wide digital transformation strategy. We are leading the way in adopting new data, modelling and automated solutions to further digitize and accelerate drug discovery and development with the aim of enhancing health outcomes and the patient experience.
Flexibility
We aim to create a trusting, flexible workplace culture which encourages employees to achieve work life harmony, attracts talent and enables everyone to be their best working self. Let’s start the conversation!
Equal Employment Opportunity
We believe that a diverse and inclusive workforce is crucial to building a successful business. As an employer, Pfizer is committed to celebrating this, in all its forms – allowing for us to be as diverse as the patients and communities we serve. Together, we continue to build a culture that encourages, supports and empowers our employees.
Disability Inclusion
Our mission is unleashing the power of all our people and we are proud to be a disability inclusive employer, ensuring equal employment opportunities for all candidates. We encourage you to put your best self forward with the knowledge and trust that we will make any reasonable adjustments to support your application and future career. Your journey with Pfizer starts here!
Breakthroughs that change patients’ lives
Research confirms what intuition tells us: that purpose-driven companies perform better, are more innovative, attract and retain the best people, and know how to unleash the power of those people. Pfizer’s purpose—Breakthroughs that change patients' lives—fuels everything we do and reflects our passion for building on our legacy as one of the greatest contributors of good to the world.
Each word in our purpose has meaning and reflects the value we strive to bring to patients and society:
“Breakthroughs” - These are the innovations, scientific and commercial, that we seek to deliver every day. All colleagues, regardless of role, level or location, strive for breakthroughs every day.
“Change” - We want to do more than simply improve patients’ medical conditions; we want to dramatically change their lives for the better.
“Patients’ lives” - We consider not only patients, but everyone they touch—including their families, caregivers, and friends—and everything they love to do. It’s an intentionally holistic view.
Our purpose ensures that patients remain at the center of all we do. We live our purpose by sourcing the best science in the world; partnering with others in the healthcare system to improve access to our medicines; using digital technologies to enhance our drug discovery and development, as well as patient outcomes; and leading the conversation to advocate for pro-innovation/pro-patient policies.
Every decision we make and every action we take is done with the patient in mind—and to nurture an environment where breakthroughs can thrive.
Our Values
To fully realize Pfizer’s purpose, we have established a clear set of expectations regarding “what” we need to achieve for patients and “how” we will go about achieving those goals.
The “how” is represented by four simple, powerful values—courage, excellence, equity, and joy—that define our company and our culture.
Courage: Breakthroughs start by challenging convention, especially in the face of uncertainty or adversity. This happens when we think big, speak up, and are decisive.
Excellence: We can only change patients’ lives when we perform at our best together. This happens when we focus on what matters, agree who does what, and measure our outcomes.
Equity: We believe that every person deserves to be seen, heard, and cared for. This happens when we are inclusive, act with integrity, and reduce healthcare disparities.
Joy: We give ourselves to our work, but it also gives to us. We find joy when we take pride, recognize one another, and have fun.
Pfizer Digital
Pfizer Digital takes immense pride in being at the forefront of innovation, harnessing cutting-edge smart technology that profoundly impacts the lives of our patients.
With the transformative potential of digital solutions, we revolutionize how we discover, develop, and deliver medicines, enabling us to achieve breakthroughs faster and more efficiently.
By streamlining and automating transactional processes, we create valuable time and resources, empowering our talented team to focus on meaningful work that truly makes a difference in healthcare and beyond.
Benefits at Pfizer
Pfizer offers competitive compensation and benefits programs designed to meet the diverse needs of our colleagues. Our Pay for Performance Philosophy and Practices reward colleagues based on the contributions they make to our business.
Our Competitive Benefits Programs help our colleagues by:
- Promoting Health and Wellness to help colleagues maintain and improve their physical and mental wellbeing. Pfizer offerings include health and disability insurance, preventative health programs, medical screenings, free or reduced-cost vaccinations, discounts on Pfizer products, mental health support, nutrition and fitness counseling and more.
- Strengthening Colleagues’ Financial Security by providing company contributions to retirement plans, life insurance and financial planning education to help colleagues achieve their financial goals.
- Providing Benefits and Time off for the Moments that Matter to ensure Pfizer colleagues have the time away from the office to recharge, recover and return to work as the best version of themselves. Vacation, Holiday time and Sick time are just the beginning, with a 12 week parental leave policy for both parents of a new born, 10 day of caregiver leave for those times when your family needs you whether it’s a child, spouse or parent, bereavement leave, and additional country-specific programs.
- And so much more, depending on your country and site, Pfizer offers childcare facilities or discount programs, on-site health and/or fitness centers, movement and mindfulness solutions, “Log in for your Day” work flexibility and so much more.
For U.S. based jobs, view an overview of Pfizer’s U.S. benefits program (opens in a new window)
