Senior NET Developer

Shimi Sp. z o.o.; Warszawa; Remote; PLN 180,000 - 240,000; Full time

Job summary

A technology solutions company is seeking a Senior .NET Developer to join their Agile Software Development team. This remote role requires experience in full-stack web applications, especially with React, TypeScript, and .NET Core. The successful candidate will lead projects and collaborate with stakeholders to enhance product quality. Compensation is competitive, with a B2B contract offering a rate up to 143 PLN/h.

Qualifications

• 4/5 years hands-on experience designing, building, and deploying applications.
• 2/3 years frontend experience using React, TypeScript, Tailwind CSS, Vite.
• 2/3 years backend experience with .NET Core / .NET 6+ REST APIs.

Responsibilities

• Lead engineer on a small team within the wider engineering group.
• Responsible for continuous improvement of product quality.
• Define scope and deliverables with stakeholders.

Skills

Designing full-stack web applications

React

TypeScript

Tailwind CSS

.NET Core / .NET 6+ REST APIs

Technical ownership

Stakeholder communication

Education

Relevant Degree Qualification

Tools

SQL Server

Gitlab CI/CD

Kubernetes

GCP

AWS

Sentry

New Relic

AI tooling

Job description

We are looking for a Senior .NET Developer to join our client’s team.

We are looking for a Senior .NET Developer to join our client’s Agile Software Development team, as a key contributor in projects across our client’s GDS product suite. The role will be expected to take responsibility for delivering projects as the lead engineer on a small team within the wider engineering group. The role will also contribute to ongoing processes of continuous improvement, of both the quality and execution of the product, and our internal processes.

Required skills and experience

• Minimum 4/5 years hands‑on experience designing, building, and deploying modern full‑stack web applications
• Minimum 2/3 years frontend experience using React, TypeScript, Tailwind CSS, Vite
• Minimum 2/3 years backend experience building .NET Core / .NET 6+ REST APIs
• Demonstrated technical ownership of a project or product
• Ability to articulate decisions from design through to production
• Comfortable working with stakeholders to define scope, deliverables, and architecture

Desired skills and experience

• Relevant Degree Qualification
• SQL Server, Redis or similar data
• DevOps – e.g Gitlab CI/CD, Kubernetes etc
• Cloud – e.g GCP, AWS
• Observability – e.g. Sentry, New Relic etc
• AI tooling experience – (Copilot, ChatGPT and others)

Offer

• Location: Remote (occasional Krakow visits welcome)
• B2B contract (via SHIMI)
• Rate: up to 143 PLN/h + VAT
• Project start date: ASAP
• Long‑term engagement