Sr. Ruby on Rails Software Engineer

NETSTOCK; South Africa; Remote; ZAR 300,000 - 400,000; Full time

Job summary

A technology company is seeking a Senior Ruby on Rails Software Engineer to join their team in South Africa. The successful candidate will be responsible for designing and maintaining an inventory management platform using Ruby on Rails. This remote role requires at least 7 years of software development experience, with strong proficiency in Ruby on Rails and relational databases. Candidates must be residents of South Africa and possess excellent problem-solving skills in a collaborative environment.

Benefits

Internet subsidy

Hardware provided

Flexible work hours

Qualifications

• 7+ years of software development experience, including 4 years with Ruby on Rails.
• Proven track record on a SaaS or data-intensive product.
• Strong experience with relational databases.

Responsibilities

• Design, develop, and maintain scalable web applications.
• Contribute to cloud-based platform architecture.
• Build and maintain RESTful APIs.

Skills

Ruby on Rails

Software development

SQL optimization

API development

Education

Bachelor's degree in Computer Science or related field

Tools

MySQL

Docker

Kubernetes

Git

Job description

Overview

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Job Title: Senior Ruby on Rails Software Engineer
Reports To: Director of Development
Employment Type: Full-Time, Permanent, remote position in South Africa only

Your role

As a Senior Ruby on Rails Engineer at Netstock, you will play a pivotal role in designing, developing, and maintaining our inventory management platform. You’ll leverage your deep expertise in Ruby on Rails to build scalable, high-performance backend systems, integrate with third-party APIs, and enhance our data-driven features. This role requires a proactive developer who can collaborate with cross-functional teams, and ensure our platform remains robust, secure, and user-friendly. At times support may be required outside of the standard work hours as Netstock is a global application across various timezones. If you’re passionate about solving complex problems in a SaaS environment and thrive in a remote setting, we’d love to hear from you!

Responsibilities

• Development: Design, develop, and maintain scalable web applications using Ruby on Rails, focusing on performance, reliability, and security.
• System Architecture: Contribute to the architecture of our cloud-based platform, ensuring it supports high availability and large-scale data processing for inventory management.
• API Integration: Build and maintain RESTful APIs to integrate with ERP systems (e.g., SAP, Oracle NetSuite, Microsoft Dynamics) and other third-party services critical to inventory workflows.
• Data Management: Optimize database performance (e.g., MySQL) and implement efficient queries to support real-time inventory analytics and reporting.
• Code Quality: Write clean, maintainable, and well-tested code following best practices (e.g., TDD, SOLID principles), and conduct code reviews to uphold team standards.
• Mentorship: Guide and mentor peers, sharing expertise in Ruby on Rails, system design, and Agile practices.
• Collaboration: Work closely with product managers, data analysts, and front-end developers to translate business requirements into technical solutions.
• Innovation: Stay current with industry trends and propose new tools or techniques to enhance our platform (e.g., microservices, caching strategies).
• Troubleshooting: Identify and resolve performance bottlenecks, bugs, and technical debt in a production environment.

Skills and qualifications

Experience:

• 7+ years of software development experience, with at least 4 years focused on Ruby on Rails in a production environment.
• Proven track record as a Senior Engineer on a SaaS or data-intensive product.

Technical skills:

• Expert-level proficiency in Ruby on Rails (v5.x or higher) and Ruby programming.
• Strong experience with relational databases (MySQL preferred) and SQL optimization. Proficiency in building and consuming RESTful APIs.
• Familiarity with cloud platforms (AWS, Azure, or Heroku, Linode) and deployment tools (Docker, Kubernetes).
• Experience with background job processing (Sidekiq, Resque) and message queues (RabbitMQ).
• Version control expertise with Git (GitHub, GitLab).

Domain knowledge:

• Understanding of inventory management, supply chain, or ERP systems is a strong plus.
• Experience with data analytics or business intelligence tools (Tableau, Power BI) is advantageous.
• Excellent problem-solving and analytical skills.
• Strong communication skills for remote collaboration across time zones.
• Ability to lead by example, mentor others, and thrive in a fast-paced Agile environment.
• Ability to deliver on deadlines and self-manage.

Education:

• Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).

Preferred qualifications

• Experience integrating with ERP systems (e.g., SAP, Oracle NetSuite, QuickBooks).
• Familiarity with microservices architecture and event-driven design.
• Contributions to open-source Ruby on Rails projects or a strong GitHub portfolio.
• Certifications in AWS, Ruby, or related technologies.
• Prior work in inventory management, logistics, or a related field.

Backend: Ruby on Rails, Ruby

Database: MySQL

Cloud: Linode, GCP & AWS (e.g., EC2, S3, RDS)

APIs: RESTful, OData, GraphQL (optional)

Self-motivated circumstances

Collaborative, inclusive team culture with regular virtual meetups.

Flexibility to travel within South Africa from time-to-time for team or company get-togethers.

Netstock will provide the hardware necessary to perform this role (including UPS power).

As this is a remote role, you’ll need access to stable, secure, high-speed fixed-line internet connectivity (Netstock provides a subsidy towards internet subscription costs).

We receive a high number of applications per role and therefore ONLY successful applicants will be contacted.

This role is open to residents of the Republic of South Africa. Although we may consider candidates with permanent residency, preference will be given to citizens of the Republic of South Africa.

Working with us

Netstock was founded with a clear vision: To give the hungry up-and-comers the capability to level the playing field and compete with the industry giants. Working here means embracing that “challenger” mentality: We are smart, scrappy fighters, building our edge with the agility to move faster than the big guys — pioneering smarter ways to work and innovating new ways to deliver powerfully easy to use technologies for our customers.

About us

Netstock is the driving force accelerating the growth of organizations worldwide. Over the last 15 years, we’ve built out a regional presence that gives us deep insights into supply chain planning factors in each industry. We continue to enhance our supply chain planning solutions, making our predictive engine smarter, accelerating automation, and adding sophisticated new capabilities such as AI and machine learning.

You can read more about Netstock’s history and our product offering at Netstock