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Avenga
Avenga
5,001 – 10,000 Employees
ConsultingHealthcareManufacturing
Avenga is an international technology and software engineering company serving enterprises through consulting, product development, and digital transformation. Its teams build custom software, cloud, and integration solutions for complex challenges across consulting, manufacturing, and healthcare, drawing on the expertise of more than 6,000 professionals in multiple countries. Avenga also supports talent acquisition and career development within its organization.
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Senior Node.js Engineer

Build scalable backend systems for Avenga’s IT consulting projects as a senior Node.js engineer. Design APIs, optimize databases, and help deliver secure, reliable software.

BGBulgariaHybridFull-timeMiddleSeniorEnglish RequiredBackend EngineerSoftware Engineer
CloudDockerJavaScriptMicroservicesMongoDBMySQLNode.jsNoSQLPostgresTypeScript

Description

  • Build and maintain scalable Node.js backend applications.
  • Develop and connect REST APIs and microservices.
  • Produce efficient, reusable, clearly documented code.
  • Work with frontend, QA, and DevOps engineers and product stakeholders.
  • Design and improve database structures, queries, and data access.
  • Find and fix performance constraints and technical problems.
  • Apply secure practices to authentication, authorization, and data handling.
  • Create and maintain automated unit and integration tests.
  • Review code and help uphold sound engineering practices.
  • Take part in technical discussions, architecture choices, and solution design.
  • Assist with CI/CD, releases, and production issue resolution.
  • Maintain application reliability, scalability, and ease of maintenance.
  • Share expertise and help colleagues develop professionally.

Requirements

  • Bring at least three years of professional backend development experience, including substantial hands-on Node.js work.
  • Demonstrate strong JavaScript (ES6+) and TypeScript skills.
  • Have experience with Node.js frameworks such as Express.js, NestJS, or Fastify.
  • Understand asynchronous programming and event-driven architecture.
  • Have designed and developed REST APIs.
  • Know relational or NoSQL databases such as PostgreSQL, MySQL, or MongoDB.
  • Be familiar with ORM or ODM tools such as Prisma, TypeORM, Sequelize, or Mongoose.
  • Understand software design principles, patterns, and clean architecture.
  • Use Git and collaborative development workflows.
  • Be familiar with Docker, CI/CD pipelines, and cloud environments.
  • Have experience writing unit and integration tests.
  • Understand application security, performance tuning, and debugging.
  • Bring strong problem-solving skills and a proactive development approach.
  • Communicate well in English and collaborate with international teams.

Benefits

  • Equal opportunity regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or other characteristics.
  • A respectful, inclusive workplace.
  • The chance to work with international teams.
  • Opportunities for professional growth and knowledge sharing.

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