Senior Full Stack Developer

Net

-, Warszawa+4 Locations

Transition Technologies MS

Full-time

B2B, Permanent

Senior

Remote

Tech stack

Polish

B1

English

B2

.Net

master

TypeScript

advanced

REST

advanced

Azure

advanced

Microservice Architecture

advanced

React

advanced

SQL

advanced

NoSQL

advanced

Formik

regular

yup

regular

Job description

Your responsibilities:

No information.

We are looking for you, if you have:

• Minimum 5 years of work experience related to software development in enterprise projects/products

• Expert knowledge in .NET (C#, .NET Core, ASP.NET MVC, Entity Framework);

• Experience with Azure cloud (e.g. Azure Functions, Storage)

• Strong understanding of microservice architectures, principles and patterns

• Experience building and maintaining large-scale React applications using TypeScript

On plus will be:

• Familiarity with Jest and React Testing Library for writing and maintaining unit/integration tests

• Ability to work with Redux state management, including Rematch models, effects, and reducers

• Proficiency with Formik and Yup for complex forms and validation schemas

• Experience customizing UI using Material-UI and styled-components

• Experience with continuous Integration (GitLab), code repositories (GIT), issue tracking systems (Jira)

• Understanding of REST principles and experience in building APIs

• Knowledge of database techniques like SQL, NoSQL and graph databases

• Experienced in product development with Scrum methodologies

• Experienced in designing software components based on requirements

• Experienced in the supervising/supporting other developers

• Good communication skills, team player, work under tight deadlines, good mentoring

We offer:

• Interesting and challenging projects

• Flexible working hours

• Friendly, non-corporate atmosphere

• Stable working conditions (CoE or B2B)

• Possibility for self-development and promotion in the company

• Rich benefits package

• Possibility to work remotely

We reserve the right to contact the selected candidates.

Published: 13.08.2025

Meet the company

Transition Technologies MS

We are a rapidly growing IT company with global reach. We deal with IT outsourcing and implementation projects in flexible cooperation models, providing access to competence and experts in technologies from mainstream to cloud. TTMS' greatest strength is its skilled professionals, so people are at the heart of our organisational culture.

Company profile

Office location