Senior Fullstack Engineer (.NET & React)

About the Position

Senior Fullstack Engineer (.NET & React)

At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our 6000+ specialists provide a full spectrum of services, including business and tech advisory, enterprise solutions, CX, UX and UI design, managed services, product development, and software development.

Avenga is looking for a Full-stack .NET Engineer for our American project. Our customer is an online enterprise-grade food ordering platform used by many of the US’s largest restaurant chains and millions of users. You will contribute to implementing large, strategic, and complex components and services, including solution design and reliability concerns.

You will join a team that develops tools and user experiences to streamline restaurant catering operations.

Responsibilities

• Design and implement scalable, high-quality components and services aligned with team and company goals.
• Contribute to technical decisions on solution design, architecture, technical debt, reliability, and performance.
• Collaborate with product managers, designers, and stakeholders to translate customer needs into balanced technical solutions.
• Monitor and improve system performance.
• Champion best practices in software development, agile methodologies, and continuous improvement.
• Own delivery pipeline (code quality, testing, deployments) and participate in on-call duties.

Requirements

• 5+ years of experience in software engineering, including knowledge of C#,.NET, and object-oriented concepts.
• Proficiency in front-end development utilizing React.
• Skilled in integrating with third-party APIs.
• Experience with monitoring and observability tools, such as Datadog, Grafana, Sumo Logic, or similar.
• Proficient in MSSQL, PostgreSQL (or similar relational database tooling).
• Experience working with AWS (or similar cloud-based technology platforms).
• English - Upper-Intermediate level or higher.

Nice to Have

• Familiarity with modern CI/CD tooling, such as GitHub Actions, TeamCity, and Octopus.
• Knowledge of Kafka (or similar event streaming tooling).

We Offer

• Opportunity to work on a large-scale, impactful project.
• Collaborative and innovative work environment.
• Professional growth and development opportunities.

About the Company

At Avenga, everyone matters. We provide equal opportunities in recruitment, career development, and leadership, regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or any other characteristic. We are committed to fostering a work environment where our diverse community of employees, candidates, and business partners actively shapes our growth. By bringing together people from different backgrounds and experiences, we build a workplace where everyone feels free to be themselves while honoring the boundaries of others.

Locations

• Ukraine

Technology

• .NET
• React
• MSSQL
• PostgreSQL
• AWS

Seniority

• Senior-level

Application Process

1. APPLICATION: Send us your application, we are ready to hear your story and explore how we can grow together.
2. REVIEW: Our team carefully reviews every application with curiosity and care.
3. TALENT ACQUISITION INTERVIEW: You will meet our Talent team to talk about your goals and learn more about who we are, what we offer, and how we support our people.
4. TECHNICAL INTERVIEW: Our tech interview is all about diving deeper into your expertise and understanding your strengths, how you solve problems, and how you think – no trick questions, just a meaningful conversation.
5. CUSTOMER INTERVIEW: For some roles, especially when our clients are closely involved, you might also have a conversation with them – it’s a chance for everyone to align and get to know each other better.
6. JOB OFFER: If we both feel it’s the right match, we will send you an offer to join us. And even if it’s not the time just yet, you’ll always hear back from us.
7. WELCOME!: Your new team is excited to meet you, support you, and build something great together. Let’s make your first day the start of a journey that shapes a career that matters.

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