Software Engineer (C#, Python) – Energy Trading – HYBRID

Job Overview

Position Overview: As a Cloud Infrastructure Engineer at Circadia Health, you will play a critical role in ensuring our technical infrastructure’s stability, scalability, and efficiency, which
powers innovative predictive clinical analytics solutions. Reporting directly to the CTO, you will work collaboratively with the engineering and product teams to maintain and enhance the systems and processes that underpin
our mission to save lives through advanced healthcare technology.
You will manage key technical systems and workflows, oversee infrastructure, pipeline optimization, and the seamless integration of external data sources.
This hands-on role requires deep technical expertise, problem-solving abilities, and a passion for healthcare technology.
This role demands a deep passion for improving patient care through healthcare technology and a hands-on approach to solving challenges. Your ultimate goal will be to deliver an exceptional customer experience while building
the foundation for Circadia’s future success. This is a mission critical role where reliability standards are extremely important since you will be directly responsible for the health of our software architecture serving
30k+ patients monitored by our Circadia Contactless Monitor (IoT devices) every day, growing to 100k+ in the next 2 to 3 years.
Key Responsibilities:OverviewMaintain and enhance AWS infrastructure instrumentation and observability tools (e.g., Grafana, alarms) to ensure system reliability.Oversee Circadia’s CI/CD pipelines (Jenkins) to enable
efficient and seamless code deployment.Manage and maintain a fully separated staging environment for testing and development.Monitor AWS infrastructure for cost efficiency, identifying and implementing improvements.Optimize
Snowflake ETL pipelines to reduce costs while maintaining performance and reliability.Manage GPT pipelines in Azure to ensure performance and cost-efficiency.Develop and maintain data pipelines for integrating external electronic
health record (EHR) system data.Monitor and maintain MySQL databases to guarantee optimal performance and reliability.Collaborate with the backend team to design and implement APIs supporting Circadia’s suite of products.
Architecture: Design, deploy, and manage AWS infrastructure solutions to support various applications and services.Design scalable systems for storage and processing of large amounts of medical data.Manage databases (e.g.,
MySQL, MongoDB), optimizing for performance, scalability, and cost-efficiency.Manage compute clusters (e.g., ECS), serving various internal and customer-facing products and services.Utilize Terraform to efficiently manage
cloud infrastructure.Ensure high availability, scalability, and reliability of the cloud environment.
Security: Collaborate with development, operations, and security teams to ensure seamless integration and delivery
of applications.Manage cloud infrastructure roles, permissions, and access credentials.Oversee regular and thorough rotation of access credentials and keys.
Reliability: Troubleshoot and resolve infrastructure-related issues promptly and effectively.Maintain comprehensive and actionable runbooks for dealing with incidents and infrastructure outages.Create detailed post-mortems
in case of significant outages.Implement automated alerting and incident response systems to identify and resolve issues quickly.
Documentation: Create and maintain comprehensive documentation for cloud infrastructure and processes.Maintain documentation at a level required for a cloud infrastructure powering a SaMD (Software as a Medical Device)
product.
Instrumentation: Develop and maintain instrumentation infrastructure to ensure system health.Build instrumentation systems to provide timely system health checks and alerts using Prometheus and Grafana.Implement
and maintain automated alerting and incident response systems for quick issue identification and resolution.
DevOps Support: Automate routine tasks and processes to improve efficiency and reduce manual intervention.Implement
and maintain CI/CD pipelines (Jenkins, CircleCI, or similar) to manage the deployment of Circadia’s services and products (backend services, Android, iOS, React apps).Write clean, testable code with a commitment to maintaining
high coding standards through comprehensive testing (Jest, PyTest, JUnit, etc.).
Attributes:Need to Haves:Advanced knowledge of AWS services, including EC2, S3, RDS, Lambda, IAM, and monitoring tools like Grafana, Prometheus,
and CloudWatch.Proficient in CI/CD pipeline management using Jenkins, CircleCI, or GitHub Actions, with experience in Terraform for Infrastructure as Code (IaC).Strong experience with MySQL performance tuning, Snowflake
ETL optimization, and data pipeline development for EHR system integration.Expertise in containerization and orchestration using Docker, Kubernetes, and AWS ECS/EKS for scalable infrastructure management.Solid understanding
of RESTful API design and backend integrations, working closely with backend teams to optimize database interactions.Strong knowledge of cloud security best practices, including IAM roles, encryption, and compliance standards
like HIPAA/SOC 2.Proficiency in Python and SQL scripting for automation, database management, and ETL workflows.
Nice to Haves:Experience with Azure services for managing GPT pipelines and multi-cloud infrastructure.Familiarity
with big data technologies such as Apache Spark, Kafka, and MSK for large-scale data processing.Advanced experience in cost optimization strategies for cloud infrastructure and database performance tuning.
Technical acumen: Advanced knowledge of all AWS systems and services.Detail oriented: Responsible for mission-critical healthcare products and services.Communications and Trust: Phenomenal communication skills with the
ability to maintain the highest levels of confidentiality on a consistent basis.Organisation and Getting Stuff Done: Juggling multiple projects and timelines. Prioritising. Keen eye for detail in all tasks and projects.
Exceptional at making lists and maintaining organisation.Growth Mindset: Your ability to learn from mistakes, reflect on mistakes, and not make mistakes again. Being curious and asking questions and facing resilience in
the face of setbacks.
Benefits:Join an energetic, diverse team dedicated to working towards the challenge of improving and saving patient livesPrivate health insurance with Vitality Health for you and your family, including
discounted gym memberships, wellness retreats, fitness devices, and lots more28 days paid annual leave during each holiday year (including bank holidays)Fully financed learning and personal development courses to help you
grow in your roleOpportunity to attend conferences and acquire certifications, paid for by the companyNew laptop of your choice for you to work on either at home, our at Circadia’s London Bridge officeFlexible / hybrid
working to suit your personal circumstances and allow you to be productive wherever you are most comfortable workingParticipate in and help plan regular team events, lunches and dinners