Full Stack Developer - JavaScript/Java/Flutter/Swift

Job Description

Title: Full Stack Developer - JavaScript/Java/Flutter/Swift

Company Name: Cortex Applied

Vacancy: 2

Age: At least 20 years

Job Location: Sylhet (Sylhet Sadar)

Salary: Tk. 12000 - 18000 (Monthly)

Experience:

Published: 2026-07-17

Application Deadline: 2026-07-27

Education:

Requirements:

Skills Required:

Additional Requirements:

• Age At least 20 years

We are looking for a versatile Full Stack Developer with experience working across diverse technologies and the ability to adapt quickly to different project requirements.

Responsibilities

• Develop responsive and user-friendly interfaces using Flutter and React.js.

• Build, maintain, and improve frontend and backend application features.

• Integrate APIs, databases, and third-party services.

• Collaborate on application architecture and technical decision-making.

• Test features thoroughly and identify functional, usability, and performance issues.

• Perform manual QA and help maintain overall product quality.

• Debug and resolve issues across different parts of the technology stack.

• Work independently and manage multiple projects or technologies when required.

• Document technical work and communicate progress clearly.

Requirements

• Professional experience in full stack software development.

• Strong experience with Flutter and React.js.

• Experience with backend technologies, REST APIs, databases, and application integrations.

• Ability to work with unfamiliar technologies and learn new tools quickly.

• Good understanding of responsive UI development and user experience principles.

• Strong debugging, problem-solving, and quality assurance skills.

• Ability to test your own work carefully before delivery.

• Familiarity with Git and modern development workflows.

• Good communication and collaboration skills.

Preferred Qualifications

• Experience developing AI agents, AI-powered applications, or integrating large language model APIs.

• Experience with automated testing, CI/CD, cloud services, or DevOps workflows.

• Familiarity with multiple backend frameworks and database technologies.

We are looking for someone who is not limited to a single technology stack, takes ownership of their work, and is comfortable contributing across development, testing, and product improvement.