Senior Back-End Software Developer; Ruby on Rails API; JHB
Job in
Stellenbosch, 7600, South Africa
Listed on 2026-02-20
Listing for:
DataFin Recruitment
Full Time
position Listed on 2026-02-20
Job specializations:
-
Software Development
Backend Developer, Software Engineer, Full Stack Developer, Senior Developer
Job Description & How to Apply Below
ENVIRONMENT:
DESIGN, implement, and maintain the core business logic, APIs, and data storage systems of web applications of a dynamic Agri Tech company seeking your coding expertise to be its next Senior Back-End Software Developer. Your focus will be on developing high-quality, scalable code and collaborating with cross-functional teams. Proficiency in technical leadership, architecture, project planning, and maintaining large Ruby on Rails codebases would set you apart.
DUTIES:- Design, develop, and maintain the core Ruby on Rails API and application logic.
- Design and implement Graph
QL schema and resolvers to efficiently serve Front-End clients. - Manage the full application lifecycle including deployment and maintenance on cloud infrastructure like AWS and Heroku (for API and background workers).
- Maintain and improve data storage strategies — research sharding and other concepts, as well as different DB/storage types (e.g., Postgre
SQL, Mongo
DB, Snowflake). - Write maintainable production-ready code while adhering to Software Development best practices (e.g., thorough testing and security).
- Deep dive R&D and architect scalable solutions to complex data and business logic problems.
- Contribute to the continuous improvement of Development practices and technology stack.
- Collaborate with Front-End Developers to ensure smooth API integration and performance.
- Say your say! We drive a culture of knowledge sharing in workshops/etc. and are always open to questions and feedback on topics like implementation details and product direction.
Qualifications –
- Preferably a Degree in Computer Science, Mathematics, Engineering, or Information Systems.
- 5+ Years of professional experience in Back-End Development.
- Strong proficiency in Ruby on Rails for API and application development.
- Expertise with relational databases (e.g., Postgre
SQL) and writing complex SQL. - Experience designing and building Graph
QL APIs. - Familiarity with cloud infrastructure, specifically AWS and/or Heroku, for deployment and maintenance.
- Strong problem-solving and debugging skills.
- Experience with Git/Git Hub for source control and CI/CD.
- Experience with Agile development methodologies.
- Experience with distributed data processing via ETL/similar processes.
- Familiarity with other databases/storage types (e.g., Mongo
DB, Snowflake). - Experience using Docker for local development.
- Contributions to open-source projects or participation in relevant Back-End communities.
- Excellent teamwork, collaboration, written, and verbal communication skills.
- Ability to handle multiple projects and prioritize tasks effectively.
Position Requirements
10+ Years
work experience
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