Software Developer

DeARX; Sandton; On-site; ZAR 600 000 - 900 000; Full time

Job summary

A leading technology company in South Africa is looking for a Senior Full Stack Software Engineer to manage the full software development lifecycle. Responsibilities include designing and developing scalable applications using C# and Java, while providing technical leadership within a cross-functional team. An ideal candidate has over 6 years of experience in software development, is proficient in both front-end and back-end frameworks, and possesses a strong understanding of microservices architecture. Competitive compensation package offered.

Qualifications

• 6+ years proven experience in full-stack software development.
• Strong experience in C# and Java.
• Hands-on experience with modern front-end and back-end frameworks.

Responsibilities

• Design and develop complex full-stack applications using C# and Java.
• Build and maintain front-end and back-end services.
• Develop and integrate RESTful APIs and microservices.

Skills

C#

Java

Agile methodologies

RESTful API design

Microservices architecture

Database optimization

Education

Relevant tertiary qualification in Information Technology or Computer Science

Tools

Git

AWS

Azure

Job description

Job Title: Senior Full Stack Software Engineer (Level III) – C# / Java

Role Purpose

The Level III Software Engineer is a senior technical contributor within a cross-functional delivery team responsible for the full software development lifecycle — from concept and design through development, deployment, and ongoing operations.

This role focuses on building scalable, high-performance, and maintainable software solutions. The engineer is accountable for designing, developing, testing, deploying, and enhancing complex systems while ensuring long-term sustainability and client experience. The incumbent also provides technical leadership by guiding developers and stakeholders in scoping work, tracking progress, and resolving engineering challenges.

As a Full Stack Engineer, the role spans both front-end and back-end development, applying a holistic engineering approach to create robust, reliable, and user-centric applications.

Key Responsibilities

• Design and develop complex full-stack applications using C# and Java

• Participate in architecture decisions to ensure scalability, performance, and future readiness

• Build and maintain front-end and back-end services across the full application stack

• Develop and integrate RESTful APIs and microservices

• Ensure code quality through testing, reviews, and best engineering practices

• Optimize database performance and application efficiency

• Support deployment pipelines and cloud-based solutions

• Collaborate with product owners, architects, and cross-functional teams

• Guide and mentor developers on engineering standards and problem-solving

• Troubleshoot and resolve production and development issues

• Contribute to continuous improvement of SDLC processes and engineering practices

Minimum Education

• Grade 12 / National Certificate / Vocational

Preferred Education

• Relevant tertiary qualification in Information Technology or Computer Science

Experience Required

• 6+ years proven experience in full-stack software development

• Strong experience in C# and Java

• Demonstrated experience delivering complex projects end-to-end

• Hands-on experience with modern front-end and back-end frameworks

• Experience working in agile, cross-functional teams

Technical Knowledge & Skills

Expert-level understanding and application of:

• Software Development Life Cycle (SDLC)

• Advanced programming concepts

• Algorithms and data structures

• Object-oriented design and design patterns

• Version control systems (e.g., Git)

• Automated testing practices

• Database systems and query optimization (SQL / NoSQL)

• RESTful API design and integration

• Cloud platforms (AWS and/or Azure)

• Microservices architecture

• Event-driven architecture

• Performance optimization and scalability strategies

Key Competencies

• Strong analytical and problem-solving ability

• Systems thinking and architectural awareness

• Collaboration and stakeholder communication

• Mentorship and technical leadership

• Attention to detail and quality-driven mindset

• Ownership and accountability