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Software Developer (.NET, BI, SQL)
  • Białystok
Software Developer (.NET, BI, SQL)
Białystok, Białystok, Podlaskie Voivodeship, Polska
INSPEERITY sp. z o.o.
2. 11. 2025
Informacje o stanowisku

technologies-expected :


  • .NET
  • BI
  • T-SQL
  • SQL
  • OLAP
  • ETL
  • UML

about-project :


  • TL;DR
  • Who: Software Developer (.NET, BI, SQL)
  • Contract Type: B2B/UoP
  • Maximum notice period: 3 months
  • Salary range: Up to 150 PLN/h + VAT
  • Start date: from 01.12.2025
  • Term of the agreement: 1 year, with the possibility of extension for another 2 years
  • Company: Software House
  • Project topic: Public Institution
  • The project is carried out as part of a public tender for the development and maintenance of enterprise-class IT systems for a European Agency operating in Poland.

responsibilities :


  • Designing and developing enterprise-level software solutions using .NET technologies, SharePoint, and React.
  • Translating business and technical requirements into clear, practical software designs and prototypes.
  • Proposing and implementing technical solutions that meet business needs and solve complex challenges.
  • Leading development teams and supporting them throughout the project lifecycle.
  • Setting and maintaining software development standards to ensure high-quality, consistent, and secure code.
  • Optimizing applications for performance, security, and overall quality.
  • Estimating development effort and timelines, contributing to project planning and delivery.
  • Managing configuration, version control, and software releases.
  • Preparing and maintaining technical documentation to support development, operations, and testing.
  • Contributing to requirements analysis, testing, quality assurance, change management, and deployment activities.
  • Creating internal testing tools and supporting second- and third-line technical support as needed.
  • Collecting and interpreting software metrics to drive improvements in quality and performance.

requirements-expected :


  • At least one certification in a software development technology domain (Microsoft Business Intelligence, .NET, or similar) at an intermediate level, or an equivalent internationally recognized certificate.
  • English level B2 or higher.
  • At least a bachelor’s degree in computer science or a related field.
  • Experience in at least two projects focused on design, implementation, and deployment of solutions based on Microsoft Business Intelligence or similar technologies, including at least one complete solution lifecycle.
  • At least 3 years of experience working in .NET development.
  • Proficient in designing and developing complete software solutions, including data layer, business logic layer, and UI layer, with strong knowledge of databases, SQL, ETL, reporting, OLAP, and data mining tools.
  • Expert in developing enterprise-level software systems in the specified technology domain, with hands-on experience in Scrum-based environments.
  • Knowledge of UML and the ability to design applications using UML diagrams.
  • Ability to lead technical teams, solve problems effectively, and document technical solutions clearly and effectively.

offered :


  • Development budget (€1200)
  • Modern work tools and technologies
  • Private medical care and a Multisport/Medicoversport card
  • Collaboration with experienced and engaged people who will appreciate your work and support you whenever you need it ?
  • Hybrid and flexible cooperation model based on a B2B contract, with the option of occasional on-site presence at the client’s office (e.g. once or twice a week, depending on project needs)
  • Access to psychological support and well-being material through Mindgram

benefits :


  • sharing the costs of sports activities
  • private medical care
  • sharing the costs of professional training & courses
  • life insurance
  • remote work opportunities
  • flexible working time
  • integration events
  • corporate library
  • no dress code
  • employee referral program

  • Praca Białystok
  • Białystok - Oferty pracy w okolicznych lokalizacjach


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