become a cyto
Make mom proud
become a cyto
Make mom proud
Careers
“You can never understand one language until you understand at least two”
- Geoffrey Willans
It’s a common problem in drug development. Biologists and bioinformaticians don’t understand each other.
We tackle this from day 1 at CytoReason. Our biologists, bioinformaticians, data scientists and engineers sit together in the same room and work on the same projects towards the same goal. After a while they start speaking the same language, complementing each other’s work, and building something big together.
As a Cyto you’ll work with a multidisciplinary on the industry’s most burning questions. Along the way, you’ll help the world’s top pharma companies make groundbreaking discoveries and bring novel therapies to the patients who most need them.
Senior Python backend developer
About The Position
We are seeking an experienced Senior Python Engineer to join our engineering team and drive the development of robust, scalable, and high-performance backend solutions. In this role, you will design and implement core services, optimize data workflows, and contribute to architecture decisions that support mission-critical applications. The ideal candidate brings deep expertise in Python, hands-on experience with distributed systems or data-intensive environments, and a passion for building reliable, production-grade software.
Responsibilities
- Enabling the adoption of next-generation orchestration tool – Nextflow
- Build software components to automate and reduce human work to annotate and design a model
- Design and implement backend APIs using Nest.js,FastAPI integrating with data layers and external systems.
- Contribute to and review frontend features in React, ensuring seamless integration with backend services.
- Help design and shape the product, working closely with product managers, bioinformaticians, and other stakeholders to align technical decisions with product goals.
- Mentor and support other developers through code reviews, internal discussions, clean code and technical guidance.
- Collaborate cross-functionally with product, data, and infrastructure teams to define requirements and deliver solutions.
- Write and maintain technical documentation and high-level designs
The Tech You’ll Work With:
- Frontend: React, TypeScript, Tailwind CSS
- Data & Storage: LakeFS, PostgreSQL, BigQuery
- Cloud: Google Cloud Platform (GCP), AWS
- Additional tools: Python, R (familiarity a plus, not required)
- CI/CD & DevOps: Docker, Kubernetes
Requirements
- 7+ years of experience as a full-stack or backend-focused developer with expereise in data releate product.
- Proficiency in NodePython .js / Nest.js and experience with scalable API design.
- Strong understanding of distributed systems, performance optimization, and cloud architectures.
- Experience leading projects or mentoring engineers — you enjoy helping others grow.
- Hands-on experience with modern frontend frameworks, preferably Reactin Python.
- Strong communication and planning skills, with the ability to provide technical input during project scoping.
- Track record of delivering efficiently in agile teams with shifting priorities.
- Proactive mindset — someone who can take ownership, identify problems, and propose solutions.
Advantages
- Experience with Python or R for data-related workflows.
- Background in data-intensive systems or bioinformatics.
- Hands-on experience with modern frontend frameworks, preferably React.
- Familiarity with multi-cloud environments (GCP + AWS)