Senior Backend Developer

●

4 days ago

Greece, Attiki, Athens

Full Time

Senior

Hybrid

Basic Information

Significa is a strategic digital agency helping organizations create digital experiences and technology solutions since 2006.

Today, we are a team of 80+ professionals across our offices in Athens and Cairo, partnering with leading organizations in Banking, Finance, Insurance, Travel and Tourism to deliver digital experiences and technology solutions that drive growth and innovation.

We are looking for a Senior Backend Developer ready to build in an AI-native environment, where LLMs, automation, and intelligent integrations are part of everyday engineering and not a future roadmap item.

You will work alongside developers, designers, project managers, and clients to deliver high-quality platforms that create real business value, using modern technologies and AI-powered tools where they add value.

Responsibilities

Develop and maintain backend systems and web applications
Build integrations with APIs and third-party platforms
Design and implement new features and services
Participate in architecture and technical design decisions
Optimize and support existing applications
Collaborate with developers, designers, project managers, and clients
Mentor junior developers and contribute to engineering best practices

Requirements

.NET

.NET Core

.NET Framework

ASP.NET

Back-end Development

CI/CD

Communication Skills

Computer Science

Docker

Microservices

Microsoft Azure

Microsoft SQL Server

Project Management

Software Development

Team Mentoring

4+ years of backend development experience.
Strong knowledge of C# and ASP.NET MVC.
Experience with .NET 5+ / .NET Core.
Experience with REST APIs and web services.
Experience with Sitecore, Umbraco or Kentico CMS platforms.
Git version control.
Understanding of SOLID principles and secure coding practices (OWASP).
Strong analytical and problem-solving skills.
Comfortable using AI tools (e.g. Claude, Claude Code) to improve productivity and accelerate delivery, while maintaining full ownership, critical thinking, and accountability for the quality of your work.
Professional proficiency in English.
Strong problem-solving skills.
Collaborative and team-oriented mindset.
Ownership and accountability.

Benefits

Competitive salary package
Flexible hybrid working model
Private health insurance .
Monthly meal vouchers.
Company laptop and equipment provided.
Dedicated training budget for personal and professional development.
Continuous development of competencies, including structured exposure to AI tools and
practices.
Exposure to challenging projects across multiple industries.
Clear career progression opportunities.
Collaborative and supportive work environment with opportunities for professional growth.

Good to have

Docker
Azure or AWS
CI/CD pipelines
Microservices architecture
Experience integrating LLM APIs (OpenAI, Azure OpenAI, Anthropic)
Familiarity with vector databases (e.g. Pinecone, pgvector, Qdrant)
Exposure to AI agent frameworks (e.g. Semantic Kernel, LangChain)

Senior Backend Developer

Basic Information

Responsibilities

Requirements

Benefits

Good to have

About the company

About the company

Senior Backend Developer

Basic Information

Responsibilities

Requirements

Benefits

Good to have

About the company

About the company