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Johannesburg: Senior Ruby on Rails Developer posted by Datafin

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Job Description

Senior Ruby on Rails DeveloperIT – Software Development
Johannesburg – Gauteng – South Africa

ENVIRONMENT:
Our client a fast-moving, high-growth online loan underwriting company is on the hunt for a Senior Ruby on Rails Developer whos not just great with code but also knows how to lead the way! If you’re someone who thrives on building sleek, scalable web apps front to back, loves clean code, and has a thing for mentoring fellow devs while setting high standards keep reading. They’ve got exciting projects, a passionate team, and a tech stack thats ready for your magic touch. Ideally, youve got 8+ years of Ruby on Rails wizardry under your belt, including at least 2 years leading the charge. A degree in Computer Science is awesome, but if your experience speaks volumes, thats what really counts. If you’re ready to roll up your sleeves and make big things happen this ones calling your name.
DUTIES:
Full-Stack Development:
  • Design, develop, and maintain high-performance Ruby on Rails applications, handling both backend and frontend components.
  • Build and optimize RESTful APIs, database schemas, and user interfaces to ensure seamless functionality and user experience.
  • Implement responsive, accessible frontend designs using HTML, CSS, JavaScript, and frameworks like React, Vue.js, or similar.
Code Quality and Best Practices:
  • Write clean, efficient, and well-documented code following Ruby on Rails conventions and industry best practices.
  • Conduct code reviews to ensure consistency, performance, and adherence to coding standards.
  • Refactor legacy code to improve maintainability, scalability, and performance.
Test-Driven Development (TDD):
  • Develop and maintain comprehensive test suites using tools like RSpec, Minitest, or Capybara to ensure robust code quality.
  • Implement best-practice test cases, including unit, integration, and end-to-end tests, to minimize bugs and regressions.
  • Advocate for and enforce a culture of TDD within the development team.
Leadership and Management:
  • Lead and mentor a team of developers, providing technical guidance and fostering a collaborative, high-performing environment.
  • Manage project timelines, delegate tasks, and ensure on-time delivery of features and releases.
  • Collaborate with product managers, designers, and stakeholders to translate requirements into technical specifications.
System Optimization and Scalability:
  • Optimize application performance through efficient database queries, caching strategies, and server-side improvements.
  • Ensure applications are secure, scalable, and maintainable, adhering to best practices for cloud-based deployments.
  • Troubleshoot and resolve complex technical issues in production environments.
Collaboration and Communication:
  • Work closely with cross-functional teams to align development efforts with business objectives.
  • Communicate technical concepts clearly to non-technical stakeholders, providing updates on progress and risks.
  • Contribute to Agile/Scrum processes, including sprint planning, stand-ups, and retrospectives.
REQUIREMENTS:
  • Education:
  • Bachelors degree in Computer Science, Software Engineering, or a related field (or equivalent experience).
  • Experience:
  • 8+ years of professional experience developing Ruby on Rails applications, with at least 2 years in a senior or lead role.
  • Proven full-stack development experience, including frontend frameworks (e.g., React, Vue.js, or Angular) and backend systems.
  • 2+ years of technical leadership or management experience, including mentoring developers and managing projects.
  • Technical Proficiency:
  • Expert-level knowledge of Ruby on Rails, including MVC architecture, Active Record, and Rails 6/7 features.
  • Strong experience with relational databases (e.g., PostgreSQL, MySQL) and query optimization.
  • Proficiency in frontend technologies: HTML5, CSS3, JavaScript, and modern frameworks.
  • Familiarity with testing frameworks (e.g., RSpec, Minitest, Capybara) and best practices for TDD/BDD.
  • Experience with version control (Git), CI/CD pipelines, and cloud platforms (e.g., AWS, Heroku, or Azure).
  • Code Quality:
  • Demonstrated ability to write clean, modular, and efficient code with a focus on maintainability.
  • Deep understanding of design patterns, SOLID principles, and RESTful architecture.
  • Familiarity with code testing applications such as Circle CI and Code Climate.
  • Bug identification via Airbrake
  • Soft Skills:
  • Strong leadership and mentoring abilities, with a track record of building cohesive teams.
  • Excellent problem-solving skills and attention to detail.
  • Effective communication skills, with the ability to articulate technical concepts to diverse audiences.
  • Preferred Qualifications:
  • BSc Computer Science.
  • Familiarity with DevOps tools (e.g., Docker, Kubernetes, Ansible) and infrastructure as code.
  • Contributions to open-source Ruby/Rails projects or a strong GitHub portfolio.
  • Agile/Scrum certification (e.g., Certified Scrum Developer) or experience leading Agile teams.
ATTRIBUTES:
  • Technical leadership
  • Clean code advocacy
  • Test-driven development
  • Full-stack expertise
  • Agile project delivery
Team mentorship
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About Other IT/Computer Jobs in Gauteng

The IT and computer industry is one of the most dynamic and growing sectors in Gauteng, with a thriving job market that offers a wide range of opportunities for career advancement.

In terms of salary ranges, IT professionals in Gauteng can expect to earn anywhere from R800 000 per annum for junior positions to over R2 million for senior executives. The average salary for software engineers is around R1.5 million, while data analysts can earn between R900 000 and R1.2 million. With experience and skills, IT professionals in Gauteng can expect significant salary increases, with some roles offering bonuses and benefits that can increase their overall remuneration.

To succeed in the IT industry in Gauteng, candidates need to possess a range of key skills, including programming languages such as Java, Python, and C++, as well as experience with databases, cloud computing, and cybersecurity. Strong problem-solving skills, attention to detail, and excellent communication skills are also essential for success in this field. Additionally, knowledge of ITIL (Information Technology Infrastructure Library) and Agile methodologies can be highly valued by employers.

Several major companies and industries in Gauteng are currently hiring IT professionals, including technology firms such as Microsoft, IBM, and Oracle, as well as banks and financial institutions like Standard Bank and Nedbank. The finance industry is also a significant employer of IT staff, with roles ranging from software development to data analytics and cybersecurity.

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Career growth opportunities are abundant in the IT industry in Gauteng, with many companies investing heavily in employee training and development programs. With experience and skills, IT professionals can move into senior leadership positions or start their own businesses, while also pursuing further education and certifications. The Johannesburg Stock Exchange (JSE) is also a significant employer of IT staff, with roles ranging from software development to data analytics and cybersecurity.

Overall, the IT industry in Gauteng offers a wide range of exciting career opportunities for job seekers with the right skills and experience. With salaries that are competitive with those offered by major companies globally, there has never been a better time to pursue a career in this dynamic and rapidly evolving field.


This information provides general career guidance. Actual salaries and requirements vary by employer.



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