Software Engineer, Back End Development

Description

Software Engineering, Back End Development

About Astellas

At Astellas we are a progressive health partner, delivering value and outcomes where needed.

We pursue innovative science, focusing initially on areas of greatest potential and then developing solutions where patient need is high, often in rare or underserved disease areas and in life-threatening or life-limiting diseases and conditions.

We work directly with patients, doctors, and health care professionals on the front line to ensure patient and clinical needs are guiding our development activities at every stage.

Our global vision for Patient Centricity is to support the development of innovative health solutions through a deep understanding of the patient experience. At Astellas, Patient Centricity isn’t a buzzword - it’s a guiding principle for action. We believe all staff have a role to play in creating a patient-centric culture and integrating an awareness of the patient into our everyday working practices, regardless of our role, team, or division.

We work closely with regulatory authorities and payers to find new ways to ensure access to new therapies. We deliver the latest insights and real-world evidence to inform the best decisions for patients and their caregivers, to ensure the medicines we develop continue to provide meaningful outcomes.

Beyond medicines, we support our stakeholder communities to drive initiatives that improve awareness, education, access and ultimately standards of care.

The Opportunity

As a back-end Developer, you will be responsible for designing, deploying, and maintaining robust backend systems and APIs that power Astellas’ generative AI platforms and digital transformation initiatives.

You will also focuses on production-level deployment, efficient data integration, and seamless handling of diverse data formats, ensuring scalable and reliable service delivery across commercial, manufacturing, and medical operations.

Hybrid Working

At Astellas we recognise the importance of balancing your work and home life, so we offer a hybrid working solution allowing time to connect with colleagues in person at the office alongside the flexibility to work from home, optimising the most productive work environment for you to succeed and deliver.

Key Activities For This Role

• API Development & Integration: Design, develop, and maintain secure and scalable RESTful and GraphQL APIs to connect frontend applications with backend services.
• Production-Level Deployment: Lead efforts in deploying backend systems to production environments, ensuring high availability, performance, and security.
• Data Management & Integration: Handle various data formats (e.g., JSON, XML, CSV) and integrate with SQL and NoSQL databases for efficient data storage, retrieval, and processing.
• DevOps & Automation: Implement CI/CD pipelines, containerization (Docker/Kubernetes), and automated deployment processes to streamline backend operations and updates.
• Collaboration & Mentoring: Work closely with cross-functional teams—including frontend engineers, data scientists, and data engineers—to ensure cohesive system performance; mentor junior team members in best practices.
• Monitoring & Troubleshooting: Proactively monitor backend systems, perform root cause analysis, and troubleshoot issues to maintain optimal operational performance.
  
  

Essential Knowledge & Experience

• Proven experience in backend development using Python.
• Strong expertise in designing and implementing secure, scalable APIs (RESTful and GraphQL).
• Demonstrated ability to deploy and manage backend systems in production environments, including experience with containerization and CI/CD pipelines.
• Proficiency in handling various data formats and integrating with both SQL and NoSQL databases.
• Solid understanding of software design patterns, security best practices, and performance optimization.
• Familiarity with version control systems (e.g., Git) and agile development methodologies.
  
  

Preferred Experience

• Familiarity with ETL processes and tools for data extraction, transformation, and loading. Experience working on machine learning projects or generative AI applications.
• Proven track record of collaborating with data engineers and data scientists on data-driven initiatives.
• Knowledge of cloud platforms such as AWS, Azure, or Google Cloud Platform.
• Understanding of application monitoring and logging tools (e.g., App Insights, CloudWatch).
• Experience working with commercial data and developing applications is a plus.
  
  

Education

• Bachelor’s degree in a relevant field or equivalent.
  
  

Additional Information

• This is a permanent role based in Poland.
• This role requires a blend of home and minimum once a week in our Warsaw office in Poland. Flexibility may be required in line with business needs. Candidates must be located within a commutable distance of the office
  
  

We are an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, colour, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.