Backend API Developer

Questronix Corporation 2; Makati; On-site; PHP 1,200,000 - 1,800,000; Full time

Job summary

Questronix Corporation 2 is seeking a senior backend engineer to design, develop, and maintain scalable backend applications and APIs. You will build secure integrations, optimize data processing, and ensure system reliability across internal and external applications.

The role requires deep expertise in Node.js, TypeScript, RESTful APIs, and AWS, with strong focus on security, performance, and scalable architecture.

Qualifications

• 5+ years of professional software development experience with strong backend and API development expertise.
• 5+ years of experience with Node.js, TypeScript and RESTful APIs.
• Knowledge of AWS and API Management.
• Strong experience designing and developing scalable backend applications, RESTful APIs, services, and system integrations.

Responsibilities

• Design, develop, and maintain scalable backend applications, services, and APIs based on business and technical requirements.
• Develop secure, reliable, and high-performing APIs and integrations supporting internal and external applications.
• Design and optimize application logic, data processing, database interactions, and system integrations.
• Perform code reviews, troubleshooting, performance tuning, and resolution of complex technical issues.
• Collaborate with frontend developers, QA engineers, DevOps, architects, and business stakeholders throughout the SDLC.
• Provide technical guidance to other developers and ensure adherence to coding, security, integration, and development standards.

Skills

Backend development

API design

Node.js

TypeScript

RESTful APIs

AWS

API Management

Database design

Security & auth

CI/CD

Agile

Code reviews

Debugging

Tools

Git

CI/CD tooling

Job description

Job Description:

• Design, develop, and maintain scalable backend applications, services, and APIs based on business and technical requirements.
• Develop secure, reliable, and high-performing APIs and integrations supporting internal and external applications.
• Design and optimize application logic, data processing, database interactions, and system integrations.
• Perform code reviews, troubleshooting, performance tuning, and resolution of complex technical issues.
• Collaborate with frontend developers, QA engineers, DevOps, architects, and business stakeholders throughout the SDLC.
• Provide technical guidance to other developers and ensure adherence to coding, security, integration, and development standards.

Requirements

Qualifications:

• 5+ years of professional software development experience with strong backend and API development expertise.
• 5+ years of experience with Node.js, TypeScript and RESTful APIs.
• Knowledge of AWS and API Management.
• Strong experience designing and developing scalable backend applications, RESTful APIs, services, and system integrations.
• Solid understanding of databases, data structures, application architecture, security, authentication, authorization, and performance optimization.
• Experience with software development tools, version control, testing, CI/CD, and Agile development practices.
• Ability to troubleshoot complex technical issues, perform code reviews, and provide technical guidance to other developers.
• Strong analytical, problem-solving, communication, and collaboration skills.