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Senior Software Engineer (Backend)

Bayer
Polandfull_timeVerifiedPosted 13 Feb 2026

About the role

 

At Bayer we’re visionaries, driven to solve the world’s toughest challenges and striving for a world where ,Health for all, Hunger for none’ is no longer a dream, but a real possibility. We’re doing it with energy, curiosity and sheer dedication, always learning from unique perspectives of those around us, expanding our thinking, growing our capabilities and redefining ‘impossible’. There are so many reasons to join us. If you’re hungry to build a varied and meaningful career in a community of brilliant and diverse minds to make a real difference, there’s only one choice.

 

Senior Software Engineer (Backend) 

 

For Digital Hub Warsaw, we are looking for:

Senior Software Engineer (Backend)

A senior software engineer delivers and integrates software to form a complete service or product. Individuals in this role will:

  • Plan and lead development on sets of related stories
  • Have an understanding of the whole system and take responsibility for teaching this to others
  • Work with other disciplines to understand what needs to be built
  • Coach and mentor more junior colleagues
  • Operate the production services being built
  • Find ways to improve system robustness, resilience, and stability

 

Key Tasks & Responsibilities:

Programming and Build

  • Collaborate with others when necessary to review user stories and code and develop
  • implementation approaches
  • Use the agreed implementation approaches to design, code, test, and document programs or scripts of medium-to-high complexity, using the right standards and tools

Systems Design

  • Design systems characterized by medium levels of risk, impact, and business or technical complexity
  • Select appropriate design standards, methods, and tools, and ensure they are applied

effectively

  • Review the systems designs of others to ensure the selection of appropriate technology.

efficient use of resources, and integration of multiple systems and technology

Systems Integration

  • Define the integration build
  • Co-ordinate build activities across systems
  • Understand how to undertake and support integration testing activities

Modern Standards Approach

  • Competently apply a modern standards approach and guide others to do so
  • Information Security
  • Maintain a strong understanding of information security
  • Design solutions and services with security controls embedded, specifically engineered with mitigation of security threats as a core feature.

Prototyping

  • Approach prototyping as a team activity, actively soliciting prototypes and testing with others
  • Establish design patterns and iterate them
  • Use a variety of prototyping methods and choose the most appropriate

Service Support

  • Identify, locate, and fix faults

User Focus

  • Collaborate with user researchers and represent users internally
  • Explain the difference between user needs and the desires of the user
  • Champion user research to focus on all users
  • Prioritize and define approaches to understand the user story, guiding others in doing so
  • Offer recommendations on the best tools and methods to use

Availability and Capacity Management

  • Manage service components to ensure they meet business needs and performance targets

 

Qualifications & Competencies (education, skills, experience):

  • Bachelor's degree in Computer Science, Software Engineering, Information Technology or a related field
  • 5+ experience as a software engineer
  • Proficiency in one or more programming languages such as Python
  • Deep understanding of software development lifecycle and software developmentmethodologies (e.g .. Agile, Scrum)
  • Proficiency in software design and architecture
  • Extensive experience with version control systems like Git
  • Ability to write clean, maintainable, and efficient code
  • Familiarity with integrated development environments (IDEs) like VSCode
  • Knowledge of software development tools and practices, including continuous integratior and continuous deployment (CI/CD)
  • Advanced understanding of database management and SQL (PostgreSQL) and ORM (SQLAlchemy. SQLModel, Aelmbic)
  • Extensive experience with relational, NoSQL and/or vector databases (MongoDB, Redis pgvector)
  • Experience with microservices architecture and RESTful API design (FastAPI) API Observability - Prometheus, Grafana, Open Telemetry, etc
  • <

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Company

Bayer

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