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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on a decision-support tool for bidding price optimization in tenders. Technologies used include R, R Shiny, dplyr, ggplot2, plotly, tidyverse, data.table, Git, Docker and AWS. Responsibilities cover developing and maintaining R/Shiny applications, implementing machine learning models, data exploration and modeling, collaborating with research scientists, documenting code and following R package best practices and version control.
from: 3 November 2026
to: 3 December 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:remote • hybrid • full office
Białystok, Centrum
Requirements
Expected technologies
R
Shiny (R)
AWS
Docker
Our requirements
- Minimum 5 years of experience in R programming with a strong focus on R Shiny development
- Proficiency in using R packages for data manipulation and visualization, such as dplyr, ggplot2, and plotly
- Familiarity with modern R frameworks like tidyverse and data.table
- Expertise in data exploration and modeling techniques
- Working knowledge of Git for version control, Docker, and AWS
- A degree in bioinformatics, biology, computer science, or a related field
- Basic shell scripting skills
- Fluent English and residency in Poland
Your responsibilities
- Developing and maintaining R applications, focusing on Shiny for data visualization and user interaction
- Implementing machine learning models to support data-driven decision-making for tender projects
- Collaborating with research scientists to gather requirements and ensure the application meets business needs
- Writing clear, maintainable code and following best practices for R package development
- Conducting data exploration and modeling to derive insights from complex datasets
- Utilizing version control systems like Git for project management and collaboration
- Documenting processes and code to ensure transparency and ease of maintenance
- Staying updated with the latest developments in R and related technologies to enhance project outcomes
About the project
We are looking for an experienced Senior R Developer to join our team and support exciting projects in data science. You will work on the project, which provides data-driven decision support to optimize bidding prices for tenders. Your expertise in R and R Shiny will be essential in developing and deploying a tool that enables businesses to calculate the best price decrease and winning probability. If you are passionate about data science and want to make an impact, this opportunity may be the right fit for you.
What we offer
- Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
- Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
- We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
- Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
- Comfortable workplace – class A offices or remote work
- Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
- PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
- Investment in your growth – meetups, webinars, training platform and technology blog – you choose
- Fantastic atmosphere created by all Sii Power People
Recruitment stages
- 1.Send your CV
- 2.Talk to us about your expectations
- 3.Learn more about our projects and choose the best
- 4.Start your adventure with Sii!
Sii Sp. z o.o.
Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.
This is how we work
Senior R Developer (f/m/x)
I apply to:
Sii Sp. z o.o.
Białystok, Centrum
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