Senior .NET Engineer

Avenga

. Build and evolve secure, maintainable .NET applications and REST APIs .

Posted 11/9/2026full-timeSofia • BulgariaSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building and evolving secure, maintainable .NET applications and REST APIs, with a strong focus on cloud-based service design and integrations. Proficient in deploying, monitoring, and troubleshooting applications in cloud environments while ensuring high standards of security and maintainability.

Highest-signal resume keywords

C# ProgrammingREST API DevelopmentCloud DeploymentAutomated TestingSQL and Relational Databases

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

C# ProgrammingREST API DevelopmentObject-Oriented DesignAutomated TestingSQLDebuggingTroubleshootingCloud EnvironmentsMicroservicesGRPC

Soft Skills

Clear English CommunicationMentoring

Tools & Technologies

GitAWSAzureOpenShiftKubernetesCI/CDJenkinsAnsible Tower

Industry Keywords

Agile DeliveryN-Tier SolutionsMessagingRabbitMQProduction Applications

Tech Stack

Tools & technologies

AnsibleAWSAzureCloudGRPCJenkinsKubernetesMicroservicesOpenShiftRabbitMQSQL.NET

About the role

Key responsibilities & impact

Build and evolve secure, maintainable .NET applications and REST APIs
Contribute to cloud-based service design and integrations
Use messaging or gRPC where appropriate
Write automated tests, review code, and document technical decisions
Deploy, monitor, and troubleshoot applications in cloud environments
Help resolve complex production incidents
Work with distributed engineering and business teams across EMEA
Translate requirements into practical, production-ready solutions
Improve delivery processes

Requirements

What you’ll need

Senior-level experience delivering production applications and APIs with C# and supported .NET versions
Strong understanding of object-oriented design, REST APIs, and web standards
Sound judgement regarding security, resilience, and maintainability
Hands-on experience deploying, debugging, and troubleshooting web applications and APIs in a cloud environment
Experience writing automated tests
Experience using Git to collaborate on software changes
Working knowledge of SQL and relational databases
Ability to investigate complex problems, identify root causes, and deliver reliable fixes
Clear English communication skills
Experience collaborating with distributed technical and business teams
Ability to mentor other engineers
Nice-to-have: experience in Agile delivery environments or N-tier solutions
Nice-to-have: experience with microservices, RabbitMQ, or gRPC
Nice-to-have: hands-on experience with AWS, Azure, OpenShift, or Kubernetes
Nice-to-have: experience with CI/CD and Jenkins or Ansible Tower

Benefits

Comp & perks

Equal opportunities regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or any other characteristic
Respectful and inclusive work environment
Opportunity to work on a long-term project for an existing client
Career development and talent team support
Opportunity to collaborate with distributed international teams
Mentoring opportunities
Opportunity to shape solutions and delivery processes