Senior Backend Engineer (Node.js / NestJS / AWS)

Senior Back-End Software Engineer with Node.js Innovate what matters, where it matters Apply now 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. Locations Warsaw Remote status Fully Remote Technology Node.js Seniority Senior-level Your way in starts here APPLICATION Send us your application, we are ready to hear your story and explore how we can grow together. REVIEW Our team carefully reviews every application with curiosity and care. If your profile isn’t the right fit today, we will keep it in mind for future opportunities that match your skills and ambitions. 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. 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. 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. 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. 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.