Senior Software Developer II

Rosstone Professional Solutions • JavaScript • TypeScript • 8 days ago
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Salary
≈ $42k – $82k per year (Estimated)
Location
In office (Johannesburg)
Seniority
Senior · 5+ years exp

Confirmed on the employer's own hiring board on Oct 11, 2026. First seen by Alion on Apr 15, 2026. Rosstone Professional Solutions scores D on the Alion truth index.

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Company
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Profile match

Rosstone Professional Solutions

Rosstone Professional Solutions, the trading name of Rosstone Consulting, is a South African workforce solutions company that supplies specialised professionals on flexible terms to ICT, engineering and financial services clients. Its services cover talent resourcing, workforce and vendor management and the facilitation of independent contractors and freelancers, with placements concentrated in Johannesburg, Sandton, Cape Town, Centurion and Pretoria. It recruits for client assignments such as software and DevOps engineers, data scientists, SAP consultants, project and programme managers, process and mechanical engineers and IT support technicians.
rosstone.co.za • Johannesburg • Durban • Pretoria • Cape Town • Gqeberha • Recruiting & Staffing

Responsibilities

  • Design, develop, and maintain robust front-end applications using React.js
  • Transform business requirements into clean, efficient, and reusable code
  • Build responsive, high-performance user interfaces
  • Integrate front-end solutions with RESTful APIs and backend services
  • Ensure code quality through reviews, testing, and best practices

Technical Leadership

  • Mentor and guide junior and intermediate developers
  • Contribute to architecture and design decisions
  • Champion best practices in performance, security, and maintainability
  • Participate in sprint planning, estimation, and technical discussions

Collaboration & Delivery

  • Work closely with product owners, designers, backend developers, and QA teams
  • Support Agile processes (Scrum / SAFe)
  • Troubleshoot and resolve production issues
  • Continuously improve development standards and tooling

Qualifications:

  • Degree or Diploma in Computer Science, Information Systems, or related field

    (or equivalent practical experience)

Experience:

  • 5+ years in software development
  • 3+ years hands-on experience with React
  • Experience working in Agile teams
  • Exposure to enterprise or large-scale systems (advantageous)

Technical Skills:

  • Strong expertise in React.js
  • Proficiency in JavaScript (ES6+), HTML5, CSS3
  • Experience with Redux / Context API
  • REST API integration experience
  • Familiarity with tools like Webpack or Vite
  • Version control (Git)
  • Responsive design & cross-browser compatibility

Nice to Have:

  • TypeScript, Next.js, or similar frameworks
  • Cloud platforms (Azure / AWS)
  • Testing frameworks (Jest, Cypress)
  • Experience in financial services or regulated environments

Key Competencies

  • Strong problem-solving and analytical thinking
  • Excellent communication and collaboration skills
  • Ownership mindset with attention to detail
  • Ability to thrive in a fast-paced, Agile environment
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