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.Net C# Software Engineer

Confidential

Kallithea, Attica Hybrid permanent

Posted: January 30, 2026

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Quick Summary

We are looking for a skilled .NET developer to join our team and work on complex and challenging projects in a collaborative and dynamic environment.

Job Description

At Relational FS we know that companies with a strong positive culture perform so much better. That is why every day we strive to create a collaborative and inclusive working environment where our people can feel empowered to succeed.

Are you a skilled and experienced .NET developer looking for an opportunity to grow while working on exciting and challenging projects in a collaborative and dynamic environment?

Relational FS has an opportunity available, to work on complex and challenging new products, to drive transformative change for our top-tier Financial Services clients. Operating in an Agile environment, applications are built with latest modern technologies like C#, microservices and front-end web frameworks.

 

Responsibilities

Design, code, debug, document, and test software according development fundamentals, processes, and specifications

Estimate development project tasks and timelines

Contribute to product design reviews with creative and practical solutions

Mentor junior team members

 

Essential Qualifications

Excellent English communication (both verbal and written)

Familiarity with Agile methodologies

Bachelor’s degree in computer science or other relevant field

2+ years of relevant working experience

Strong understanding of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms

Good understanding of C# .NET & Asp.Net WebAPI,

Good understanding of RDBMS (SQL Server) and ORMs

Good understanding of microservice architecture

Experience with Front-end technologies, especially angular, will be considered a plus

Experience with REST microservices and Service oriented architecture will be considered a plus

 

Desired Qualifications: What we might consider an advantage

Unit testing (Test Driven Development)

Azure DevOps Pipelines (CI/CD)

Cloud native containerized application Docker

 

What Does our tech stack look like?

At Relational FS, we pride ourselves on adaptability and keeping up with the latest technologies. Our current tech stack looks like this

.NET C#

Azure DevOps CI/CD, Git

Kubernetes, Docker, Harbor

MSSQL, PostgreSQL, Redis, Spark.NET

Prometheus, Grafana, Loci, Jaeger, OpenTelemetry

 

Why work with us?

Relational FS is one of Greece's leading technology software companies, with a mission to provide our clients with innovative, scalable, and secure software solutions that enhance their business performance and customer satisfaction. Through matrix organizational structure we achieve cross-functional collaboration which helps to increase efficiency, innovation, and responsiveness to changing markets. Along with that we introduced a software coaching/mentoring scheme which provides guidance, feedback, and support to software engineers or learners who want to improve their skills, knowledge, and performance.

 

You will collaborate with experienced and talented people, who will inspire you, mentor you, and help you grow. You will also have access to numerous resources, tools, and facilities that will enable you to do your best work.

 

As an equal opportunity employer, we celebrate diversity and are committed to creating an inclusive environment for all employees.

Our company is people - centric and offers personalized benefits to each employee:

We want you to be well compensated for what you bring in, so we offer an attractive salary package

Your health matters to us, so all colleagues have a private health insurance plan from day one

Developer’s fuel is coffee, and the supply source is in our kitchen!

We are excited for challenges, so you are invited to take part in exciting projects

We love the Relational vibes so we gather on smaller and bigger occasions to celebrate good times together!

Relational Financial Solutions adheres to the General Data Protection Regulation principles by applying its Privacy Policy as published in https://www.relationalfs.com/legal-information/pri.... By submitting an application to this position and by sharing your personal data with Relational Financial Solutions you acknowledge and accept its Policy and authorise Relational Financial Solutions to process your personal data for the purposes of the company's recruitment opportunities, in line to the Policy.

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