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R Developer

Johannesburg, Gauteng · Information Technology
Position Overview:
We are seeking a highly skilled and experienced Senior R Developer to join our data-driven team. The ideal candidate will have a strong background in R programming, with expertise in statistical analysis, data visualization, and machine learning. As a Senior R Developer, you will play a key role in designing, developing, and maintaining data analysis pipelines, as well as mentoring junior developers. You should be passionate about data science, writing clean, maintainable code, and have a deep understanding of modern data analysis practices.

Key Responsibilities:
  • Design, develop, and maintain robust, scalable, and high-performance R-based data analysis pipelines.
  • Collaborate with cross-functional teams to define, design, and implement data-driven solutions.
  • Write reusable, testable, and efficient code for statistical analysis and data visualization.
  • Integrate data from various sources and ensure data quality and integrity.
  • Optimize data processing workflows for maximum speed and scalability.
  • Implement security and data protection measures.
  • Troubleshoot and debug data analysis pipelines to resolve issues.
  • Mentor and guide junior developers, providing technical leadership and code reviews.
  • Stay up-to-date with emerging technologies and industry trends to ensure our solutions remain cutting-edge.
  • Participate in Agile/Scrum processes, including sprint planning, stand-ups, and retrospectives.

Required Skills and Technologies:
  • Proficiency in R: Extensive experience with R programming and its libraries (e.g., dplyr, ggplot2, Shiny).
  • Statistical Analysis: Strong understanding of statistical methods and their application in data analysis.
  • Data Visualization: Expertise in creating data visualizations using libraries like ggplot2, plotly, and lattice.
  • Data Manipulation: Experience with data manipulation and cleaning using libraries like dplyr and tidyr.
  • Machine Learning: Familiarity with machine learning algorithms and libraries (e.g., caret, randomForest, xgboost).
  • Database Management: Experience with relational databases (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB).
  • APIs and Web Scraping: Expertise in designing and consuming RESTful APIs and web scraping using libraries like httr and rvest.
  • Version Control: Strong experience with Git and collaborative development workflows (e.g., GitFlow).
  • Security Best Practices: Understanding of secure coding practices and common vulnerabilities (e.g., OWASP Top 10).

Preferred Skills:
  • Experience with front-end frameworks (e.g., React, Angular, Vue.js) for full-stack development.
  • Familiarity with message brokers (e.g., RabbitMQ, Kafka) and event-driven architectures.
  • Knowledge of containerization and orchestration tools (e.g., Docker, Kubernetes).
  • Experience with serverless computing (e.g., AWS Lambda, Google Cloud Functions).
  • Understanding of GraphQL and its implementation in R.

Qualifications:
  • Education: Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.
  • Experience: 5+ years of professional experience in R development, with at least 2 years in a senior or lead role.
  • Certifications (Optional): Relevant certifications such as:
    • AWS Certified Developer
    • Microsoft Certified: Azure Developer Associate
    • Google Professional Cloud Developer
    • R-specific certifications (e.g., R Programming Certification by DataCamp)

Soft Skills:
  • Strong problem-solving and analytical skills.
  • Excellent communication and collaboration abilities.
  • Ability to work independently and as part of a team.
  • Leadership skills with a focus on mentoring and guiding junior developers.
  • Adaptability to changing project requirements and technologies.

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