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

CLaaS2SaaS; Islamabad; On-site; PKR 1,800,000 - 2,400,000; Full time

Job summary

CLaaS2SaaS is seeking a highly capable Senior Developer to lead the design, development, and optimization of scalable web applications and business systems. This role requires hands‑on development experience and the ability to contribute to architecture decisions and technical improvements across projects.

The ideal candidate will mentor junior developers, collaborate with stakeholders to deliver reliable and maintainable solutions aligned with business objectives, and ensure performance,

Qualifications

• 5–7 years of professional software development experience.
• Experience building enterprise-grade web applications.
• Strong hands-on development with C#, Python and PHP.

Responsibilities

• Design, develop, enhance, and maintain web applications and internal systems.
• Lead technical discussions, solution architecture, and system design initiatives.
• Translate requirements into scalable technical solutions and ensure performance, security, and maintainability.
• Develop and integrate APIs and database solutions; conduct code reviews and enforce coding standards.
• Mentor junior developers and share knowledge across the team.

Skills

C#

Python

PHP

Job description

Experience Level: Minimum 5–7 years of relevant professional experience

About the Role

We are looking for a highly capable Senior Developer to lead the design, development, and optimization of scalable web applications and business systems. This role requires strong technical expertise, hands‑on development experience, and the ability to contribute to architecture decisions and technical improvements across projects.

The ideal candidate is experienced in building enterprise‑grade applications, troubleshooting complex technical issues, and collaborating closely with stakeholders to deliver reliable and maintainable solutions aligned with business objectives.

Key Responsibilities

• Design, develop, enhance, and maintain web applications and internal systems
• Lead technical discussions, solution architecture, and system design initiatives
• Translate business and functional requirements into scalable and effective technical solutions
• Ensure application performance, security, scalability, and maintainability
• Develop and integrate APIs, third‑party services, and database solutions
• Conduct code reviews and ensure adherence to coding standards and development best practices
• Troubleshoot and resolve complex technical and system‑related issues
• Collaborate with cross‑functional teams to ensure timely and high‑quality project delivery
• Mentor junior developers and support technical knowledge‑sharing within the team
• Contribute to technical documentation, process improvements, and continuous development initiatives

Requirements

• Minimum 5–7 years of professional experience in software or application development
• Strong hands‑on experience with C#, Python, and PHP
• Strong understanding of web application development and software architecture
• Experience working with databases, APIs, and system integrations
• Familiarity with version control systems and structured development workflows
• Strong analytical and problem‑solving skills with the ability to handle complex technical challenges
• Ability to work independently while collaborating effectively within a team
• Experience mentoring or guiding junior developers is an advantage
• Exposure to cloud technologies or enterprise systems is a plus