• Ensure the reliability, security, and performance of backend systems. • Establish best practices in DevOps, observability, and CI/CD. • Work closely with development teams to deploy code, automate processes, and maintain high-availability distributed systems. • Design and implement scalable infrastructure using Terraform, Kubernetes, and containerized environments. • Develop monitoring, logging, and alerting solutions to maintain system health and minimize downtime. • Build and optimize CI/CD pipelines, ensuring efficient deployment of backend services and smart contracts. • Identify and resolve bottlenecks in distributed systems to improve scalability and efficiency. • Implement and enforce security policies, including key management, access controls, and network security.

ROLE SUMMARY The Digital Technology and AI organization's mission is to innovate, build, standardize, and scale breakthrough AI/GenAI solutions, products, and platforms that enable Pfizer to connect digitally with all our customers. We seek a DevOps Engineer who will support a portfolio of AI platforms and services. You will work alongside senior engineers to implement DevOps best practices, maintain CI/CD pipelines, and help ensure the security, reliability, and scalability of our AI infrastructure. This is an excellent opportunity to grow your career in DevOps while working with cutting-edge AI technologies. ROLE RESPONSIBILITIES The DevOps engineer colleague's responsibilities include but are not limited to: Infrastructure & Cloud Operations: - Support AWS cloud infrastructure using Infrastructure as Code (CloudFormation) - Work with AWS services including ECS Fargate, Lambda, Step Functions, S3, DynamoDB, and ECR - Assist in managing multi-environment deployments (dev, test, prod, sandbox) - Help maintain and monitor cloud resources for performance and cost optimization - Participate in infrastructure lifecycle activities including patches and upgrades CI/CD & Automation: - Maintain and enhance CI/CD pipelines using GitHub Actions - Support deployment processes for microservices across multiple environments - Develop automation scripts (Python/Bash) for operational tasks - Manage Docker container builds and deployments - Contribute to GitOps practices and infrastructure as code initiatives Security & Compliance: - Implement security scanning in CI/CD pipelines (SonarQube, Snyk ) - Help manage secrets and credentials using AWS Secrets Manager - Support compliance with enterprise security policies and tagging standards - Respond to security vulnerabilities and incidents under guidance - Participate in security reviews of infrastructure Monitoring & Operations: - Set up and maintain monitoring and alerting using Grafana, Dynatrace, and CloudWatch - Participate in incident response and troubleshooting - Document operational procedures and runbooks - Support on-call rotation for production systems - Help drive continuous improvement initiatives Collaboration: - Work with development teams to understand deployment requirements - Document infrastructure changes and technical procedures - Participate in technical design discussions - Share knowledge and learn from senior team members BASIC QUALIFICATIONS - Bachelor's degree in Computer Science , Engineering, or related field required - 4+ years of experience working with cloud platforms, preferably AWS - Experience with CI/CD pipelines and deployment automation - Hands-on experience with Docker and containerization - Familiarity with AWS services such as: - Compute : ECS, Lambda, or EC2 - Storage: S3, DynamoDB - Container: ECR - Security: IAM, Secrets Manager - Experience with Infrastructure as Code (CloudFormation or Terraform) - Working knowledge of Git version control - Scripting & Programming: Python or Bash scripting experience - CI/CD Tools: GitHub Actions, Jenkins, or similar - Monitoring Tools: Experience with CloudWatch, Grafana, Dynatrace, or similar - Security: Familiarity with security scanning tools - Operating Systems: Linux/Unix administration skills - Strong problem-solving and troubleshooting abilities - Good communication and collaboration skills - Eagerness to learn new technologies and best practices - Ability to work both independently and as part of a team - Attention to detail and commitment to quality - Self-motivated with good time management 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! Information & Business Tech

• Administration of Linux machines, Web servers, Application servers, Databases Application and cloud infrastructure support for customer environments. • Provide application support on Java and Ruby applications. • Own end-to-end availability and performance of mission critical services and build automation to prevent problem recurrence. • Tools development and automation to increase availability and performance. • Ensuring the data, services and infrastructures are reliable, fault-tolerant, efficiently scalable and cost-effective. • Collaborate with Product and Release engineering for new product releases and maintenance. • Coordinate incident, problem and change management. • Participate in on-call rotation for after-hours and weekend emergencies

• Apply best practices for monitoring, observability, security, and infrastructure automation. • Ensure availability of services targeting 99.99% uptime for critical blockchain infrastructure. • Develop and maintain tools for Cardano and Midnight infrastructure in a multi-cloud or bare metal hybrid environment. • Actively troubleshoot issues during testing and deployment, addressing protocol-level bottlenecks. • Build and maintain CI/CD pipelines for Midnight projects. • Participate in on-call rota for production system interruptions. • Manage transition from federated validator to decentralized validator network.