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Senior R/Shiny Developer

Role overview

Qualifications

  • Advanced R knowledge, including advanced Shiny mechanisms (bindings, register DataObj, performance, promises, single-threading) and ability to apply them in practice.
  • Proven track record of building web applications or websites using R/Shiny and JavaScript.
  • Very good knowledge of SQL.
  • Experience using cloud computing environments (AWS, Azure, GCP).

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.

About the company

Appsilon logo

Appsilon

Our vision: To discover tomorrow’s applications of data and apply them today. We constantly improve how data is acquired, processed and used. Appsilon was founded in 2013 as a data science company, but its founders have worked together for over a decade. They combined their global experiences from companies like Google, Microsoft, Bank of America and UBS into their own company, Appsilon. We are driven by using Data Science at the forefront of business, leveraging the potential of the ever increasing amount of data. Our team has proven their skill set many times over, winning the Global Management Challenge with AI support or World Port Hackathon in Rotterdam. Some of the industries we work with include but are not limited to Finance, Healthcare, Maritime, Retail and Real Estate. Appsilon delivers high-quality data analysis and technical support. If you have a difficult problem that requires strong analytical skills or think that your data is being underutilised, then we're the right people!

Company details

Company size51 - 200

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Job description

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.

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Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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