Senior Backend Engineer (.NET / AWS) | Generative AI

About the Position

We are looking for a Senior Backend Engineer (.NET / AWS) to join one of our engineering teams building a greenfield platform that enables creative teams to explore and develop new ideas using enterprise Generative AI services.

The platform uses off-the-shelf enterprise AI APIs for text and image generation. Rather than building AI models, you’ll develop the backend platform that integrates these services while capturing the entire ideation process.

Responsibilities

• Develop backend services using C# /.NET.
• Build cloud-based applications and services on AWS.
• Integrate enterprise AI services for text and image generation.
• Develop backend capabilities that capture prompts, generated assets, and the complete ideation process.
• Contribute to interactive experiences that support AI-assisted concept development.
• Support integrations with enterprise platforms used for design guidelines and documentation.
• Build backend services that enable AI-powered interactions with enterprise documentation.
• Contribute to the development of agentic workflows supporting software delivery.
• Take ownership of backend services, including operational responsibilities.

Requirements

• Strong backend development experience using C# / .NET.
• Hands-on experience with AWS.
• Experience building cloud-native applications and services.
• Experience developing agentic workflows for software deployment.
• Interest in building products powered by Generative AI.
• Strong communication and collaboration skills.

Nice to Have

• Experience working with Model Context Protocol (MCP).
• Experience integrating enterprise AI services.
• Experience working with enterprise SaaS platforms.
• Familiarity with agentic AI frameworks and orchestration approaches.

We Offer

• Relocation package
• Competitive compensation packages
• Flexible working hours
• Job rotation
• Performance bonuses
• Learning through Arnia Academy
• Attractive projects
• Trainings
• International work experience
• Referral program
• Medical benefits

About the Company

At Arnia, we are a diverse and passionate team of software development engineers, quality assurance engineers, business analysts, system administrators, and managers, united by our shared dedication to creating high-quality software solutions and delivering exceptional services to our valued customers and partners.

We believe in customer satisfaction as being the single most important goal we want to achieve in everything we do. But we also believe that we can reach this goal while having fun at work, making friends, and enjoying working together. We have game evenings, nights out and team building events to help us know each other better and spend quality time together. Also, we have a flat organization, with no unnecessary hierarchies and where you reach the management easily.

In Arnia you will meet very skilled software engineers with rich academic background, with passion for innovation and continuous education, self-driven and oriented toward results. At the same time, they are people with high sense of humour, fun and informal, that value friendship, trust and a nice working environment.

Excellence is achieved step by step, it is a journey we always take together as a team and as a modern organization.

We recognize the value of each individual, we value diversity and we support your development career – your success is our success! We take pride in helping our people to develop their career, continuously improving their skills and their technical knowledge and to fully reach their own development goals.

People are different, they are coming from various cultures and are motivated by different things:

• The financial interests
• The career development plan
• The technologies and the projects
• The work-life balance
• The opportunities to travel abroad

Why Arnia?

We recognize people’s diversity and we try to meet everyone’s goals.

• Game Evenings
• Nights Out
• Team Buildings
• Trainings

Arnia encourages you to pursue your own interests, projects and ideas – passion can turn small things into big things – we want to be part of your own individual success. Let us know your ideas and your personal interests and we will find a way to support you.

Relocation Package

Competitive Compensation Packages

Flexible Working Hours

Job Rotation

Performance Bonuses

Medical Benefits

Not the least, we have class A offices, located in Piata Victoriei – Europa House building, next to the metro stations and to other transportation means. It is very easy to get to work and you will enjoy the quality and the lifestyle of our offices.

Attractive Projects

International Work Experience

Referral Program

Learning Through Arnia Academy

And if you like all these, why don’t you join us?

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Whatever role you choose to pursue in our organization, as long as it aligns with our company goals and values, we will support you all the way. We provide for each employee:

• A clear development plan for your career
• Mentoring support, to help you grow in our organization
• Customized trainings and courses
• Periodical 1:1 meeting with your direct manager and upper management
• Annual performance reviews
• Constant feedback and career development support

Also, you will have the chance to mentor other people, to contribute to their growth and to help them with their career development. As a family, we support each other to achieve our best potential and to contribute better to the organization success.

In Arnia we need more than just excellent software engineers – we need highly skilled technical leaders, business analysts, and managers. And they are usually found within our own organization – they are people who showed great skills as individual contributors and choose to follow a leading role. Growing as a leader requires the development of specific skills, such as: people management, social awareness, self-awareness and leadership vision. If you are up to the challenge, we will support you and we will provide the best opportunities to show your talent and dedication.

And if you choose to be a full-time individual contributor, you will get the chance to develop your engineering skills, enrich your technical knowledge and promote to senior levels – it’s up to you and us to find together the best path for your career.

I joined the Arnia team in 2011 on the XpressEngine project (PHP based CMS, most popular in South-East Asia) and now I’m leading the team that develops our own CMS, Karybu. Also, our PHP team is involved in a lot more projects on different technologies ranging from Magento to WordPress and from Zend Framework to Symfony2. Dan D., PHP Tech Lead @ Arnia

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Recruitment process

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Arnia Software has consolidated its position as a preferred IT outsourcing company in Romania and Eastern Europe, due to its excellent timely delivery and amazing development team.

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Our services include:

Nearshore with Arnia Software

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Offshore Software Development

Engagement models

Bespoke Software Development

Staff Augmentation

Digital Transformation

Mobile App Development

Banking Software Solutions

Quality Assurance

Project Management

Open Source

Nearshore Development Centre

Offshore Development Centre (ODC)

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