Senior Backend Developer (Node.js / Nest.js)

Proxify AB; United States; Remote; USD 90,000 - 120,000; Full time

Job summary

Proxify AB is seeking a Senior Backend Developer (Node.js / Nest.js) for a long-term, full-time remote position. You will build scalable web applications, collaborate with backend engineers and designers, and shape the architecture of our services in a fast-growing network.

Requirements include 5+ years in Node.js, 3+ years with Nest.js, REST/GraphQL APIs, JS/TS proficiency, and experience with SQL/NoSQL databases. CET timezone, remote work, competitive compensation.

Qualifications

• 5+ years of Node.js and 3+ years with Nest.js.
• Experience building REST and GraphQL APIs.
• Strong JavaScript/TypeScript skills.
• Experience with SQL/NoSQL databases.
• Knowledge of JWT/OAuth2 authentication.

Responsibilities

• Design and develop backend apps with Node.js and Nest.js.
• Implement RESTful APIs, GraphQL endpoints, and microservices.
• Ensure performance, scalability, and security of systems.
• Integrate with SQL/NoSQL databases and external services via APIs.
• Maintain code quality with testing and reviews.

Skills

Node.js

Nest.js

REST APIs

GraphQL

JavaScript ES6+

TypeScript

SQL/NoSQL

JWT/OAuth2

Testing Jest

Git

Tools

Docker

CI/CD

RabbitMQ

Kafka

Serverless

Job description

Headquarters: Sweden URL: http://career.proxify.io

The Role

We are looking for a Senior Backend (Node.js / Nest.js) Developer to join our fast-growing network. You’ll be responsible for building modern and scalable web applications, working closely with backend developers and designers to create intuitive user experiences. This is a long-term, full-time remote role with opportunities to work on innovative projects that make a difference.

What we’re looking for

• 5+ years with Node.js and 3+ past years with Nest.js
• Strong expertise in Node.js and Nest.js frameworks.
• Proven experience building REST and/or GraphQL APIs.
• Strong knowledge of JavaScript (ES6+) and TypeScript.
• Solid experience with relational and/or NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB).
• Familiarity with authentication/authorization mechanisms (JWT, OAuth2).
• Experience with unit/integration testing (e.g., Jest, Mocha).
• Proficiency with Git and version control workflows.
• Located in CET timezone (+/- 3 hours), we are unable to consider applications from candidates in other time zones.

Nice to Have

• Experience with cloud platforms (AWS, Azure, GCP).
• Familiarity with CI/CD pipelines and DevOps practices.
• Understanding of event-driven architecture and message brokers (e.g., RabbitMQ, Kafka).
• Experience with Docker and containerized applications.
• Knowledge of microservices and serverless architectures.

Responsibilities

• Design and develop robust, scalable, and secure backend applications using Node.js and Nest.js.
• Implement RESTful APIs, GraphQL endpoints, and microservices architectures.
• Optimize application performance, scalability, and maintainability.
• Integrate with databases (SQL/NoSQL) and external services via APIs.
• Ensure code quality, security, and compliance with industry standards.

What we offer

• Get paid, not played
• No more unreliable clients.
• Enjoy on-time monthly payments with flexible withdrawal options.
• Predictable project hours
• Enjoy a harmonious work-life balance with consistent 8-hour working days with clients.
• Flex days, so you can recharge.
• Enjoy up to 24 flex days off per year without losing pay, for full-time positions found through Proxify.
• Career-accelerating positions at cutting-edge companies
• Discover exclusive long-term remote positions at the world's most exciting companies.
• Hand-picked opportunities just for you
• Skip the typical recruitment roadblocks and biases with personally matched positions.
• A one-time contracting process for endless opportunities, with no extra assessments.
• Compensation: Enjoy the same pay, every month with positions landed through Proxify.