Senior R/Shiny Developer

Salary: 87600 to 302400 PLN per year Your responsibilities: Designing comprehensive solutions in R for clients. Choosing the right technology solutions for the right problems. Sharing knowledge and driving innovation. Delivering the features according to the timeline or discussing/communicating the changes. Taking care of the direct communication with clients. Showing a high level of understanding of clients' problems. What we expect from you: Advanced R knowledge, including advanced mechanisms of Shiny (e.g., bindings, register DataObj, performance, promises, single-threading, etc.) and ability to effectively use them in practice. Proven track of building web applications or websites using R/Shiny and JavaScript. Writing high-quality optimal code. Good understanding of reactivity in Shiny and ability to troubleshoot. Experience in processing, analyzing, and visualizing data sets optimally. Advanced git knowledge. Very good knowledge of SQL. Experience using cloud computing environments (AWS, Azure, GCP). Experience with JS and ability to use it to implement visually impressive applications. You have a valid passport (when you're based outside of Poland) or ID (if you're based in Poland). Good understanding of Agile. Experience working in a team environment. What’s in it for you: Up to 25.200 PLN/month + VAT on a B2B contract ( Up to $5650/month ). Please check our career path document regarding levels and salary systems. 100% remote work, flexible schedule, and a global team culture. Work on impactful, real-world products used by enterprise clients and scientific industries. Time and budget for continuous professional development, including domain knowledge, certifications, and industry events. Collaboration with experienced engineers, data scientists, and subject matter experts in a supportive, high-trust environment. Modern equipment (MacBook or ThinkPad with Linux) and tools that enable efficient, high-quality delivery work. A remote-first culture built on trust, ownership, and kindness, where teams collaborate effectively and take pride in high-quality delivery. 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 Home assignment Tech interview with the Career Role Leader Final interview with the Head of Technology (we cherish our values; you can read more about them here ). 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. Does this sound like a great opportunity for you? Use the Apply button below!