Skip to main content
MissionHires logo

Sr. Backend Engineer

MissionHires
Full Timesenior
Franklin Township, New Jersey, USPosted April 21, 2026

Resume Keywords to Include

Make sure these keywords appear in your resume to improve ATS scoring

Node.jsExpressGCPDockerKubernetesPostgreSQLKafkaRabbitMQ

Sign up free to auto-tailor your resume with all these keywords and get a higher ATS score

Job Description

As a Senior Backend Engineer, you will design and develop scalable backend services using Node.js and NestJS, create and maintain high-performance RESTful APIs, and implement automated tests to ensure software quality. You'll manage relational databases, particularly PostgreSQL, collaborate on system design, and actively participate in code reviews to enhance development processes. Additionally, you'll oversee optimal service performance, manage production deployments, and mentor junior developers.

You’ll lead technical discussions, establish best practices, and promote a culture of continuous learning and improvement in a dynamic startup environment.

Overall you will...

  • Design and develop robust, scalable backend services using Node.js and NestJS (Express)
  • Create and maintain high-performance RESTful APIs
  • Implement automated tests to ensure software quality and reliability
  • Manage relational databases, preferably PostgreSQL
  • Collaborate on system design and architecture
  • Actively participate in code reviews and continuous improvement of our development processes
  • Ensure optimal service performance and manage production deployments
  • Handle multiple tasks simultaneously, allowing quick rotation between them in a dynamic startup environment
  • Mentor junior developers and provide technical guidance to the team
  • Lead technical discussions and help establish best practices
  • Share knowledge through pair programming and code reviews
  • Foster a culture of continuous learning and improvement

Qualifications

  • Bachelor's degree in Computer Science or related fields, or equivalent experience and 3+ years of experience in the field
  • Solid experience in backend development with Node.js and NestJS (Express)
  • Proven experience in creating and managing RESTful APIs
  • Advanced knowledge of relational databases, preferably PostgreSQL
  • Experience implementing unit and integration tests
  • Familiarity with design principles and architectural patterns
  • Experience in deploying services and managing their performance plus independence for feature delivery in a dynamic startup context
  • Track record of successfully mentoring junior developers
  • Ability to communicate complex technical concepts clearly
  • Experience in establishing development standards and best practices
  • Excellent problem-solving abilities and analytical thinking
  • Ability to work in a team and communicate effectively
  • Self-taught nature with a strong interest in the latest technological trends

Desirable skills:

  • Experience with cloud computing platforms, specifically Google Cloud Platform (GCP)
  • Knowledge of containers and orchestration, such as Docker and Kubernetes
  • Experience with messaging and queuing systems like RabbitMQ/Kafka/PubSub
  • Spanish and English proficiency

About the role

As a Senior Backend Engineer, you will design and develop scalable backend services using Node.js and NestJS, create and maintain high-performance RESTful APIs, and implement automated tests to ensure software quality. You'll manage relational databases, particularly PostgreSQL, collaborate on system design, and actively participate in code reviews to enhance development processes. Additionally, you'll oversee optimal service performance, manage production deployments, and mentor junior developers.

You’ll lead technical discussions, establish best practices, and promote a culture of continuous learning and improvement in a dynamic startup environment.

Overall you will...

  • Design and develop robust, scalable backend services using Node.js and NestJS (Express)
  • Create and maintain high-performance RESTful APIs
  • Implement automated tests to ensure software quality and reliability
  • Manage relational databases, preferably PostgreSQL
  • Collaborate on system design and architecture
  • Actively participate in code reviews and continuous improvement of our development processes
  • Ensure optimal service performance and manage production deployments
  • Handle multiple tasks simultaneously, allowing quick rotation between them in a dynamic startup environment
  • Mentor junior developers and provide technical guidance to the team
  • Lead technical discussions and help establish best practices
  • Share knowledge through pair programming and code reviews
  • Foster a culture of continuous learning and improvement

Qualifications

  • Bachelor's degree in Computer Science or related fields, or equivalent experience and 3+ years of experience in the field
  • Solid experience in backend development with Node.js a

Want AI-powered job matching?

Upload your resume and get every job scored, your resume tailored, and hiring manager emails found - automatically.

Get Started Free