Senior Backend Developer (Python/AWS)

Job Description

As a Senior Backend Developer (Python/AWS), you will be responsible for the design, development, and operational support of backend systems and APIs in a global cloud environment. You will combine strong backend engineering skills with DevOps practices, ensuring that AWS-based services and integrations are scalable, secure, and efficient. This role is ideal for someone who enjoys owning solutions end-to-end, from infrastructure to code to production support.

What you will be doing:

• Design, build, and maintain backend services and APIs with a focus on scalability, performance, and security.
• Develop and deploy AWS infrastructure using Infrastructure as Code (Terraform), covering services such as S3, Lambda, ECS, RDS, MWAA, Glue, and API Gateway.
• Implement and manage CI/CD pipelines, automating build, test, and deployment processes.
• Monitor, troubleshoot, and resolve production incidents, ensuring high system availability and reliability.
• Optimize cloud environments for cost efficiency and performance.
• Collaborate with cross-functional teams in an Agile setting, participating in sprint planning, code reviews, and backlog refinement.
• Maintain clear technical documentation and contribute to knowledge-sharing across the team.

Qualifications

• 4+ years of experience in backend development and DevOps.
• Strong proficiency in Python (Go or JavaScript is a plus).
• Hands-on expertise with AWS services (e.g., S3, Lambda, ECS, Glue, RDS, API Gateway) and Infrastructure as Code (Terraform).
• Solid understanding of DevOps and CI/CD practices, including tools such as Jenkins, Git, Nexus, Docker, and Kubernetes.
• Experience with container orchestration (OpenShift or Kubernetes) is a plus.
• Familiarity with Agile methodologies and collaboration tools (Jira, Bitbucket, Confluence).
• Excellent communication skills and ability to work effectively in global, distributed teams.
• Pharma or other regulated industry experience is a plus, but not required.

Additional Information

Why Fusion?

At Fusion, we unite entrepreneurial minds from around the globe to develop and implement game-changing solutions that build lasting relationships with our clients.

We value employees who challenge the status quo through innovation, adapt to diverse client needs in ever-changing environments, and commit to continuous learning—for themselves and their colleagues.

We provide a competitive salary and benefits package, along with an outstanding work environment that fosters long-term career development opportunities.

Our Benefits:

• Workflex: Enjoy 25 days of flexibility to work from your preferred global location.
• Flexible Time Off: Take the time you need to recharge and maintain a healthy work-life balance, with flexibility beyond standard holiday allowances.
• Annual Training Budget: Access CHF 1,500 to invest in your professional development and skill enhancement.
• Continuous Learning: Thrive in an environment that encourages ongoing learning, with opportunities to develop new skills and broaden your expertise.
• Global Mobility Support: Gain assistance with international assignments, visa/permit support, and relocation services.
• Unity Scheme: Benefit from loyalty rewards starting after 3 years of service.
• Referral Program: Earn a referral fee for every successfully hired referee.
• Local Benefits: Access a range of country-specific benefits tailored to your location.
• People Focus: Unite with the best global talent in life sciences, empowered to grow and collaborate in a vibrant environment.
• Truly Global: Join a truly global organization where mutual support, teamwork, and diversity drive our collective success.