Senior / Principal Software Engineer, Data Platform

JVR Software; Johannesburg; Hybrid; ZAR 550,000 - 900,000; Full time

Benefits offered by this job

Medical aid

Professional development & certs

Hybrid working environment

Exposure to modern cloud technologies

Job summary

Network Finance in Gauteng (Johannesburg) is seeking a senior full-stack developer with 5+ years of experience to drive API integration, data fidelity, and performance across cloud-hosted environments. You will work with React, TypeScript, Node.js, and SQL-based systems to deliver scalable web applications for employees and customers.

Join a hybrid Johannesburg-based team, collaborating with data and platform groups to enable secure, robust solutions and continuous improvement in development

Qualifications

• Matric (Grade 12) required.
• Bachelor’s Degree in Computer Science, Information Systems, Software Engineering, or related field, or equivalent practical experience.
• Relevant cloud or web development certifications will be advantageous.

Responsibilities

• Integrate applications with shared APIs and backend services.
• Ensure data displayed within applications reflects underlying business systems.
• Validate and troubleshoot data using SQL and database queries.
• Collaborate with data and platform teams to support seamless integration.
• Develop applications that perform well across varying network conditions.
• Optimise user journeys and application responsiveness.
• Work with stakeholders to understand operational needs and improve usability.
• Communicate technical changes clearly to non-technical users.
• Participate in code reviews and maintain high development standards.
• Develop automated tests for application functionality and user interactions.
• Support structured release processes through development, testing, and production environments.
• Monitor performance and resolve issues through established support processes.
• Implement secure authentication and access controls.
• Ensure privacy and data protection requirements are met.
• Follow secure development practices and protect sensitive information.
• Manage application access and configuration securely.
• Work closely with technical and business teams to deliver solutions.
• Share knowledge and mentor junior developers.
• Contribute to continuous improvement and development standards.
• Participate in solution design and technical planning activities.

Skills

TypeScript

JavaScript

HTML5 & CSS3

React

Node.js

SQL

PostgreSQL

Education

Bachelor’s Degree in Computer Science/Information Systems/Software Engineering

Tools

Git & GitHub

Automated testing frameworks

CI/CD

Cloud-hosted environments

Authentication & access management

Google Cloud Platform

Firebase

Cloud Run

Next.js

Vue.js

Angular

C#

Java

Go

Rust

Job description

Employer Network Finance Location Gauteng Job type Development Salary Not specified Posted 3 Nov 2026

API & Data Integration

• Integrate applications with shared APIs and backend services.
• Ensure data displayed within applications accurately reflects underlying business systems.
• Validate and troubleshoot data using SQL and database queries.
• Collaborate with data and platform teams to support seamless integration.

User Experience & Performance

• Develop applications that perform effectively across varying network conditions.
• Optimise user journeys and application responsiveness.
• Work directly with stakeholders to understand operational needs and improve usability.
• Communicate technical changes clearly to non-technical users.

Quality Assurance & Release Management

• Participate in code reviews and maintain high development standards.
• Develop automated tests for application functionality and user interactions.
• Support structured release processes through development, testing, and production environments.
• Monitor performance and resolve issues through established support processes.

Security & Compliance

• Implement secure authentication and access controls.
• Ensure compliance with privacy and data protection requirements.
• Follow secure development practices and protect sensitive information.
• Manage application access and configuration securely.

Collaboration & Mentorship

• Work closely with technical and business teams to deliver solutions.
• Share knowledge and support less experienced developers where required.
• Contribute to continuous improvement initiatives and development standards.
• Participate in solution design and technical planning activities.

Minimum Requirements

• Matric (Grade 12).
• Bachelor’s Degree in Computer Science, Information Systems, Software Engineering, or a related field, or equivalent practical experience.
• Relevant cloud or web development certifications will be advantageous.

Technical Skills

• TypeScript
• JavaScript
• HTML5 & CSS3
• React
• Node.js
• SQL
• PostgreSQL

Experience with:

• RESTful APIs
• Git and GitHub
• Automated testing frameworks
• CI/CD practices
• Cloud-hosted environments
• Authentication and access management solutions

Exposure to the following will be advantageous:

• Google Cloud Platform
• Firebase
• Cloud Run
• Next.js
• Vue.js
• Angular
• C#
• Java
• Go
• Rust

Experience Required

• Minimum 5 years’ professional software development experience.
• Proven full-stack development experience.
• Experience building and supporting production web applications used by employees or customers.
• Experience working with modern JavaScript frameworks and cloud-based solutions.
• Experience mentoring junior developers would be advantageous.
• Exposure to operational systems, telecommunications, utilities, GIS/mapping solutions, or enterprise portals would be beneficial.

Key Competencies

• Strong problem-solving and analytical skills.
• Excellent communication and stakeholder engagement abilities.
• High attention to detail and commitment to quality.
• Strong ownership and accountability.
• Ability to work independently and collaboratively.
• Customer-focused mindset.
• Commitment to continuous improvement and best-practice development standards.

What’s On Offer

• Competitive market-related remuneration package.
• Performance-based incentives.
• Medical aid and risk benefits.
• Professional development and certification support.
• Exposure to modern cloud technologies and enterprise-scale systems.
• Hybrid working environment with flexibility and growth opportunities.

Working Environment

• Hybrid work model based in Johannesburg.
• Occasional travel may be required.
• Participation in major releases and occasional after-hours support when necessary.
• Collaborative and innovative technology environment focused on operational excellence.