Senior Full Stack Developer
Position Overview

We are seeking a Senior Full Stack Developer with a strong backend focus and solid frontend development experience to develop, maintain, and enhance scalable web applications and business systems.

The ideal candidate should be a hands-on developer who is capable of coding independently while also providing technical leadership and guidance to the development team. The role is primarily focused on software development, with approximately 70% backend and 30% frontend responsibilities.

The candidate should have strong hands-on experience in at least one backend technology and framework, together with practical frontend, database, API, and system integration experience.

Key Responsibilities

Design, develop, test, and maintain web applications and business systems.
Perform hands-on backend development, including services, APIs, databases, and system integrations.
Develop frontend components and integrate them with backend services.
Provide technical leadership and guidance to developers within the team.
Participate in system design, architecture discussions, and technical solution planning.
Develop and integrate REST APIs and third-party services.
Troubleshoot and resolve application, integration, and performance issues.
Conduct code reviews and promote coding standards, best practices, and maintainable solutions.
Guide and support junior developers in technical implementation and problem-solving.
Contribute to application security, performance, scalability, and maintainability.
Work with cross-functional teams to understand requirements and translate them into technical solutions.

Requirements

Requirements

3–5 years of professional software development experience.
Strong hands-on coding experience with at least one backend programming language, such as:
- PHP
- Python
- C#
- Java
- Node.js
Strong hands-on experience with at least one backend framework, such as:
- Laravel
- Django
- .NET / ASP.NET Core
- Spring Boot
Practical frontend development experience with at least one framework or library, such as React.js, together with good knowledge of HTML5, CSS3, and JavaScript.
Experience with at least one database technology, such as MS SQL Server, MySQL/MariaDB, PostgreSQL, or NoSQL.
Good understanding of REST APIs, JSON, and third-party API integration.
Strong working knowledge of Git, including branching, pull requests, and code review practices.
Good understanding of object-oriented programming and web application development.
Demonstrated ability to technically lead, mentor, and guide developers while remaining hands-on with coding.
Strong analytical, troubleshooting, and problem-solving skills.
Ability to work independently and collaboratively in a development team.
Project management experience is not the primary requirement for this role.

Preferred / Good to Have

Experience with CI/CD, Azure, or Docker.
Knowledge of application and API security.
Experience with query and application performance optimization.
Familiarity with scalable system design and design patterns.
Experience integrating AI technologies such as OpenAI API, Claude API, or Gemini API.
Exposure to Microsoft Power Platform.

Senior Full Stack Developer (C , Python, and PHP) - Indonesia