Backend API Developer

Questronix Corporation; Makati; On-site; PHP 900,000 - 1,800,000; Full time

Job summary

Questronix Corporation in Makati, Philippines, is seeking a senior backend developer to design, build, and maintain scalable backend applications and APIs, aligning with business and technical requirements.

You will collaborate across teams to implement secure, high-performance services and guide other developers through SDLC practices, code reviews, and integration standards.

Qualifications

• 5+ years of professional software development experience with strong backend and API development expertise.
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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

Node.js

TypeScript

RESTful APIs

AWS

API Management

Backend scalability

Databases

Security

Authentication/Authorization

Performance optimization

CI/CD

Agile development

Code reviews

Troubleshooting

Communication

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.

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.