Software Developer NET BI SQL

We are looking for a Software Developer (.NET, BI, SQL) to join a project 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.Who we are: We are Inspeerity (part of DevelopX group), a modern software house, providing software development, consultancy, and maintenance services. We specialize in full stack development – from defining project requirements, to designing, building, and deploying software applications for web, backend, enterprise and mobile. We are crazy about technology, serious about people. TL;DRWho: Software Developer (.NET, BI, SQL)Contract Type: B2B/UoPMaximum notice period: 3 monthsSalary range: Up to 150 PLN/h + VATStart date: from 01.12.2025Term of the agreement: 1 year, with the possibility of extension for another 2 yearsCompany: Software HouseWhat you’ll be doing: 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.You will be the best fit if you have: 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.What we offer:Remote work or working from our Bialystok, Warsaw, Rzeszow offices. It's up to you Great working conditions and best equipment. Private, comprehensive medical cover. Training budget. Physical and psychological care with Multisport Card and Mindgram application. And most importantYou'll work with experienced, committed people who will appreciate you, your skills and knowledge and give you support when you need it Time for your turn ;)