Full Stack Developer (Python/React)
Join Appsilon - a remote-first team that empowers pharmaceutical and life sciences companies to leverage open-source technology for faster, data-driven decision-making in regulated environments. We specialize in R, Shiny, and cloud technologies, and we’re passionate about open source, innovation, and building impactful solutions.
Your responsibilities:
Work with a team of developers on client projects
Write high-quality code using Python (Django, Flask, or FastAPI) and ReactJS
Build and improve web applications (HTML, CSS, JavaScript/TypeScript)
Design and build APIs (especially RESTful APIs)
Use databases like PostgreSQL or MySQL
Understand client needs and turn them into working software
Help plan and improve how we work (tools, code quality, etc.)
Join discussions to make good technical decisions
Curious about what we actually do? Check out our blog!
We’re looking for someone who:
Knows Python well and has experience with Django, Flask or FastAPI
Can use ReactJS, JavaScript, and TypeScript
Understands HTML, CSS, and web development best practices
Has experience building APIs and working with databases
Uses Git and deployment tools confidently
Writes clean, well-organized code
Can solve problems and work in a fast-paced team
Works well with others and supports teamwork
Enjoys learning new tools and technologies
Can work independently and pay attention to details
Has fluent English (C1 minimum) and self-organization skills to thrive in a remote-first setup
Nice to have:
SQL and ORMs (especially SQLAlchemy)
Experience with Streamlit or R/Shiny
Working knowledge of Docker and Unix
Knowledge of Sass and data visualizations
Understanding of CI/CD tools and cloud deployments
Experience with ETL processes
Knowledge of design patterns and SOLID principles
We offer:
Fully remote work, with flexible working hours that support focus, collaboration, and sustainable delivery.
Hands-on development role where you build real, production-grade web applications used by global pharma and life sciences teams.
Close collaboration with experienced developers, data scientists, and product-minded teams, with space to influence technical decisions and code quality.
Exposure to regulated, data-intensive environments where engineering standards and thoughtful solutions truly matter.
Competitive B2B compensation aligned with your experience and impact, with clear and transparent terms.
Time and budget for continuous professional development, including courses, certifications, and learning new technologies.
A transparent growth framework and career paths that support long-term development as an engineer.
Modern equipment (MacBook or ThinkPad with Linux) and tools that enable efficient, high-quality development work.
A remote-first, trust-based culture that values ownership, collaboration, and continuous improvement.
Important note: To complete the hiring process, you need to have a valid government-issued ID (for Polish citizens) or a valid passport (for non-Polish citizens).
What can you expect during the recruitment process?
General interview with the People Team
Technical task (Codility test)
Technical interview
Final interview with the Head of Technology
Offer
Does this sound like a great opportunity for you?
Use the Apply button below!
Appsilon is committed to being a diverse and inclusive workplace. We encourage applicants of different backgrounds, cultures, genders, experiences, abilities, and perspectives to apply. All qualified applicants will receive consideration for employment without regard to race, color, national origin, religion, sexual orientation, gender, gender identity, age, physical disability, or length of time spent unemployed.