Expected, C#, .NET, Visual Studio, https://jobeax.com/link/6WcBICn0LM558SP0

Optional, Postman, Playwright

About the project, Ignite innovation in software development - shape the future with cutting-edge .NET and React solutions!, , As a Senior Fullstack Developer, you will be working for our client, a leading technology innovator. You’ll contribute to building sophisticated applications by leveraging your expertise in C# and React, helping to deliver impactful digital solutions. Join us and propel your career into new dimensions of success and innovation., , Warsaw or Gdańsk-based opportunity with hybrid work model (1day/ week in the office).

This is how we work, at the client's site

Your responsibilities, Develop high-quality software using C# (.Net Framework, .Net Standard, .Net Core) in accordance with technical documentation., Implement frontend features and interfaces with React (versions 18+)., Analyze and enhance existing codebases, including legacy systems., Design and develop scalable architecture solutions., Collaborate closely with cross-functional teams—testers, analysts, and product owners—within agile (SCRUM) environments., Debug, profile, and optimize application performance., Apply best practices such as DDD, CleanCode, and SOLID principles., Work with SQL Server and TSQL using SQL Management Studio., Utilize Visual Studio for development processes.

Minimum 5 years of software development experience in .NET applications., At least 3 years working with React., Proficiency in Polish and a communicative level of English (min. B2)., Well-developed analytical thinking abilities., Excellent organizational skills and attention to quality and deadlines., Secondary education, preferably higher education in computer science or related fields.

Optional, Experience in creating views for mobile applications., Background developing solutions for the financial sector., Knowledge of test automation tools like Postman or PlayWright., Familiarity with WCAG standards.

Division of working time, backend - 70%, frontend - 30%

What we offer, ITDS Clubs, Access to medical insurance, Access to Multisport, Access to Pluralsight, Integrational Events, Ambassador Program

Benefits, sharing the costs of sports activities, private medical care, flexible working time, fruits, integration events, corporate gym, saving & investment scheme, no dress code, coffee / tea, drinks, christmas gifts, birthday celebration, sharing the costs of a streaming platform subscription, access to +100 projects, access to Pluralsight

Recruitment stages, online interview, online interview

#GETREADY to meet with us!, ITDS Business Consultants is involved in many various, innovative and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people., , We would like to meet you. If you are interested please apply and attach your CV in English or Polish, including a statement that you agree to our processing and storing of your personal data.

ITDS’s Whistleblower Procedure, You can report violations in accordance with ITDS’s Whistleblower Procedure available here:

ITDS Polska Sp. z o.o., ITDS supports financial service providers to take the next steps., , We identify what’s possible, every day. Opportunities in the areas of technology, organization, and digitization., , We see where banks, insurers, payment companies, or fintech can go and how they can get there., , That’s why we want to stimulate you to ramp up your ambition. Forget what you perceive as restraints and step towards the new reality., , ITDS in Poland - Pure player in new Technologies & Financial Industry, +300 IT implementation professionals, +20 clients in the Banking, Insurance, Payment & Fintech Industry, , ITDS excels in digital strategy delivery and implementation of best-of-breed lending solutions. ITDS has delivered successful strategic projects throughout Europe since 1998. We combine the experience we’ve accumulated with in-depth knowledge of technologies, business processes, and EU legislation to unlock new business opportunities.

This is how we work,

Senior Fullstack Developer (.NET & React)

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