Senior Back-End Software Engineer with Node.js

This is us

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 Ul design, managed services, product development, and software development.

This is the job

We’re looking for a Back-End Software Engineer with a strong focus on building and scaling backend services and APIs. In this role, you’ll work on our Backend for Frontend (BFF) layer and core service engines — powering seamless integrations between our frontend applications and enterprise systems.

This is the team

You’ll design and implement high-performance Node.js and Nest.js services, develop RESTful APIs, and collaborate closely with frontend and platform teams to deliver reliable, scalable, and secure solutions. Experience building backend services that expose REST APIs and integrating with enterprise systems is highly valued.

This is you

• 5+ years professional software engineering experience
• Backend development with Node.js and NestJS
• Container orchestration with Kubernetes, Docker, and Helm
• Infrastructure as code with Terraform
• AWS cloud services and deployment
• Enterprise application development
• Large-scale business-critical applications
• Third-party system integration (CRM, enterprise platforms, APIs)

• Self-starter with ability to work independently with minimal supervision
• Excellent written and verbal communication skills
• Strong stakeholder communication (technical and non-technical audiences)
• Collaborative team player
• Constructive feedback (giving and receiving)
• Problem-solving skills
• Commercial awareness and business acumen
• Technical decision-making aligned with business outcomes

This is your role

• Develop and maintain enterprise integration services and platform tooling using NestJS
• Provision and configure cloud environments using GitOps, CI/CD pipelines, Helm, Amazon EKS, and ArgoCD
• Integrate with enterprise systems including Netcracker, Salesforce CRM, internal APIs, and Storyblok headless CMS
• Implement infrastructure as code using Terraform for AWS cloud infrastructure
• Participate in code reviews and technical discussions within Agile Scrum team
• Deliver secure, scalable solutions in complex enterprise environments

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.