Senior Backend Engineer (Project Based)

PT. Salis Investama; Jakarta Pusat; On-site; IDR 350,000,000 - 550,000,000; Full time

Job summary

PT. Salis Investama seeks an experienced backend engineer to lead a small team delivering production-grade services in PHP (Laravel) or Node.js on PostgreSQL. The role covers data modeling, migrations, API contracts, and secure coding practices for regulated clients.

You will review pull requests, break features into tasks, and deputise for the Technical Lead in client meetings and AWS-based deployments with CI/CD. Fluency in English is required; Mandarin is a plus.

Qualifications

• 6+ years building production backend systems with PHP/Laravel and/or Node.js.
• Strong SQL/DB design and performance tuning (PostgreSQL/MySQL).
• Experience leading a small team or workstream.
• Experience deploying on AWS and CI/CD practices.
• Knowledge of OWASP Top 10 and secure coding.

Responsibilities

• Review contract engineers' pull requests before they reach staging or production.
• Break features into tasks, estimate effort in person days, and track delivery against the plan.
• Design and build backend services and APIs in PHP (Laravel) or Node.js on PostgreSQL, owning the data model, migrations, and API contracts.
• Deputise for the Technical Lead in client meetings, stand-ups, and technical decisions.
• Maintain CI/CD, automated tests, and deployment standards on AWS with DevOps.
• Apply security and audit requirements for regulated clients, and write short technical handover notes.

Skills

PHP/Laravel

Node.js

PostgreSQL

MySQL

SQL optimization

Code review

Team lead

Git workflows

CI/CD

AWS

Docker

IaC

Security (OWASP)

OJK/regulated

React

NoSQL

Kafka/WebSockets

English

Mandarin

Tools

React

Kafka

WebSockets

Job description

6+ years building production backend systems with strong PHP (Laravel) and/or Node.js.

Solid relational database design and SQL (PostgreSQL/MySQL), including performance tuning.

Experience reviewing code and leading a small team or workstream, able to cover for the Technical Lead at short notice.

Comfortable with Git workflows, CI/CD, and cloud deployment (AWS preferred).

Good grasp of secure coding (OWASP Top 10) and personal data handling.

OJK-regulated industry experience (insurance, banking, lending), React, ISO 27001/pentest remediation, Docker and IaC, message queues and object storage, NoSQL, and real-time streaming (WebSockets, Kafka).

Fluent in English; Mandarin Chinese is a plus.

Responsibilities :

Review and approve contract engineers' pull requests before they reach staging or production.

Break features into tasks, estimate effort in person days, and track delivery against the plan.

Design and build backend services and APIs in PHP (Laravel) or Node.js on PostgreSQL, owning the data model, migrations, and API contracts.

Deputise for the Technical Lead in client meetings, stand-ups, and technical decisions.

Maintain CI/CD, automated tests, and deployment standards on AWS with DevOps.

Apply security and audit requirements for regulated clients, and write short technical handover notes.