All offersWarszawaNetSenior .NET Developer
Senior .NET Developer
Sigma IT Poland

Senior .NET Developer

Sigma IT Poland
Type of work
Employment Type
B2B, Permanent
Operating mode

Tech stack

    nice to have
    nice to have
    nice to have

Job description

Online interview
Friendly offer

Sigma IT Poland is a division within NEXER GROUP – a custom software development company. In Poland, we started in 2017 and now we are 170+ crew with an office in Wrocław, Warsaw, and Cracow. We have the opportunity to work with world-renowned brands from Scandinavia, the UK, and Western Europe. Our goal is to grow strong, rather in competencies than in pure numbers.

If you like what we do, see our offer, maybe it is you we will have the pleasure to meet! :)

We are looking for a Senior .NET Developer to develop a specialized system that ensures the best surgical guidelines are always at hand, resulting in a better patient care experience.

Our client has developed an interactive, user-friendly interface for collection, documentation and follow up on critical performance and quality parameters as outlined by leading clinical experts in respective ERAS® Protocols. The goal is to lead the digitalization of medical science and transform it into best clinical practice for improved quality of care and health economics.


First duties and responsibilities:

  • Rebuild user management to include integration with identity provider such as Azure AD/Entra ID;
  • Implement two-factor authentication via e-mail.


You might be the perfect match if you are/have:

  • 4+ years of experience in similar role;
  • Solid experience with .NET;
  • Understanding of PostgreSQL;
  • Expericence in working with OAuth 2.0 and OpenID Connect;
  • Experience with integration with identity providers such as Azure AD/Entra ID or other;
  • Experience with GitHub and JIRA.


Moreover, we appreciate skills in these areas:

  • Experience with AWS;
  • Hands-on experience with Docker and Kubernetes;
  • Experience with Entity Framework;
  • Good communication skills;
  • Agile mindset;
  • Availability to start work in mid-February/March.


By joining us, you gain the following:

  • Exciting projects, multinational and inspiring environment for talented IT professionals. Various projects in diverse, cutting-edge industries. Biotech, Automotive, Internet of Things, or AR/VR;
  • Code review done by skilled engineers (over 60% of our team are people with over 5 years of experience in the industry);
  • Becoming a part of a team of motivated individuals, that are here to stay. We value loyalty – as you grow, we grow with you;
  • Respect for your private life so you don't have to work overtime or on weekends;
  • Online and offline integration events - including remote X-mass party and annual WOW tour trip abroad - so far we've been in Cape Town and Barcelona.

Perks and benefits:

  • Fully remote work from your convenience or in our office in Wrocław, Warsaw or Cracow;
  • Choice of employment form: we offer B2B or employment contract;
  • Free benefits such as Luxmed, Multisport, and life insurance in Nationale Nederlanden;
  • Attractive referral system (9,5k for senior, 6k for mid, 2,5k for junior);
  • Personal Training Budget and Passion Day - an extra day off for your passion, hobby, and growth to spend as you please;
  • Flexible working hours with no micro-management approach. Our core hours are 9-15, the rest of the working time is your decision;
  • We provide high-quality work equipment + 2 additional monitors and accessories.


If you apply for this position and match our expectations, then:

1) You will be invited to talk with Marta.

2) You will be invited to a technical verification with our colleague.

3) You will have a meeting with client.

Submit your application online in one easy step! Apply now!