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Application Admin Engineer with .NET

Algoteque • Warszawa (Poland) • Full Remote

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About us

ALGOTEQUE is an IT consultancy firm that helps startups, mid-sized and large corporations to create and deliver innovative technologies. Our team has a successful track record in designing, developing, implementing, and integrating software solutions (AI, ML, BI, Web, Automation) for Telecom, Energy, Bank, Insurance, Pharma, Automotive, Industry, e-commerce. We deliver our services both in fixed-price and time-and-materials models, helping our customers achieve their business and IT strategies.

Job Description

Algoteque is seeking a hybrid Application Admin Engineer with .NET to join a strategic project in the medical technology sector. You'll support the stability of a legacy Vaccination Register platform, while transitioning into .NET backend development of a refactored, modernized solution. The role is split into two key areas of responsibility: 1. Legacy System Maintenance – Application Administration (approx. 40%) The existing legacy platform must remain stable during the transition. Responsibilities include: - Ensuring the application is running smoothly - Diagnosing and fixing bugs - Performing upgrades and system-level adjustments - Supporting ongoing operations and patch deployments 2. .NET Development – (approx. 60%) The candidate will have the opportunity to transition into .NET backend development within the new refactored system: - Working closely with our lead architect - Contributing to the backend in .NET and integrating with a React frontend - Writing clean, scalable code and supporting CI/CD efforts

Required qualifications

- Strong experience with application administration and support - Experience with monitoring tools, debugging live systems, performance tuning - Solid understanding of .NET development (C#) - Ability and motivation to grow in backend development under mentorship - Team player who enjoys working in evolving, real-life production environments - Knowledge of React or front-end collaboration is a plus

Benefits

- Work on a real-world, high-impact platform - Be part of a collaborative and forward-thinking team - Grow your backend development career under expert guidance

Job details

Company

Algoteque

Contract

Full-time

Job location

Full Remote • Warszawa (Poland)

Reference

2269414

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Application Admin Engineer with .NET

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