Senior Back End Java Developer (Contract) GautengHybrid ISB701612

iSanqa Resourcing; Midrand; Hybrid; ZAR 85 000 - 120 000; Full time

Job summary

A technology recruitment company is seeking a Senior Java Developer to design and develop mission-critical backend systems. This role involves leading the development of scalable microservices and cloud-native solutions. Candidates should have at least 7 years of experience in Java, with a strong background in building and maintaining RESTful services. The position offers a hybrid work model based in Gauteng, South Africa, with some responsibilities in technical leadership and mentorship.

Qualifications

• 7 years of building and maintaining mission critical Java systems inside corporate or medium sized business.
• 5 years of production experience of building / updating and fixing web services (Restful).
• 3 years experience on building / running microservices architecture.

Responsibilities

• Analyze business requirements and technical specifications to design backend architecture.
• Select and implement programming languages frameworks and databases.
• Ensure backend components are scalable, maintainable, and aligned with industry best practices.
• Write clean, efficient, and well-documented code.
• Develop and integrate APIs and other backend components.

Skills

Extensive Java 8 / 11 or higher experience

Building and maintaining mission critical systems

Experience of building and maintaining Restful services

Developing and maintaining mission critical systems in the Cloud

Building / running distributed architecture

Solid proficiency in Jakarta / JEE Standards

Quarkus or Spring Framework Experience

Relational Databases (Oracle, Postgres)

Angular Experience

Education

Computer Science degree or similar relevant formal qualification

Tools

Kubernetes

Git

Terraform

Kafka

Job description

Architect mission-critical backend systems that power global automotive quality platforms!

Lead the development of scalable microservices RESTful APIs and cloud-native solutions using Java Quarkus and Azure!

Become the technical expert behind enterprise-scale backend infrastructure where your senior Java development expertise and architectural insight will drive innovation and reliability across international automotive systems!

Position

Contract : 01 January 2026 31 December 2028

Experience

6-8 years building mission-critical Java systems

Commencement

01 January 2026

Location

Hybrid : Midrand / Menlyn / Rosslyn / Home Office rotation

Team

Total Vehicle Quality & CoP (HWS Broker)

Hybrid and remote working flexibility with 1960 flexible annual hours

Technical leadership role with mentorship and architectural responsibilities

Qualifications / Experience

Minimum mandatory qualifications

• Computer Science degree or similar relevant formal qualification

Minimum mandatory experience

• 7 years of building and maintaining mission critical Java systems inside corporate or medium sized business
• 5 years production experience of building / updating and fixing webservices (Restful)
• 5 years of experiences to mission critical systems in the Cloud
• 3 years experience on building / running microservices architecture

Advantageous experience

• Proven track record of successful projects delivered
• Proven experience in senior / leadership roles fulfilled in IT / Engineering teams
• Agile working experience (any framework)

Essential Skills Requirements

• Extensive Java 8 / 11 or higher experience
• Building and maintaining mission critical systems inside corporate or medium sized business
• Experience of building and maintaining Restful services
• Developing and maintaining mission critical systems in the Cloud
• Building / running distributed architecture
• Solid proficiency in Jakarta / JEE Standards
• Quarkus or Spring Framework Experience
• Proven Production experience on working with Relational Databases (Oracle Postgres Database)
• Angular Experience
• Any additional responsibilities assigned in the Agile Working Model (AWM) Charter
• Supervision : Completely independent worker that will only upscale tasks that are complex and outside of their span of control.
• May need to lead individual members of a team of Entry and Advanced level experts
• Problem solving : Improve a product or a system that already exists by making conceptual changes and enhancements. Can manage the solution for complex problems that may require simple solutions but affect multiple systems
• Communication : Influence (Effect change without direct exercise of command where persuasion is required and reaching buy-in might be difficult).
• Strong interpersonal and communication skills.
• Excellent organizational and presentation skills. Willingness to engage with international customers and navigate potential language barriers
• Delivery : Specify new products processes standards based on organization strategy or set short- to mid-term operational plans.
• The requests are often unclear and will need substantial investigation to ensure that the specifics are well understood by all parties.
• Employee may be expected to provide guidance to lower-level employees
• Knowledge : Functional expert - Mastery of a specific professional discipline combining deep knowledge of theory and organizational practice

Soft Skills

• Ability to work interdependently and to submit deliverables on time and with excellent quality
• Self-starter
• Good interpersonal and organizational skills with the ability to communicate effectively (both verbally and written) on technical and non-technical level
• Good written and verbal communication skills and Progressive and Creative thinker
• Problem Solving capability
• Above board work ethics - this is of utmost importance
• Flexibility to take up different tasks in the project
• Ability and willingness to coach and give training to fellow colleagues and users when required
• Must be able and willing and able to travel to Munich Germany if required

Advantageous Skills Requirements

• Kafka - publishing and consuming large volumes of messages across a distributed system
• Agile toolchain experience (Jira Confluence Atlassian Tool Suite)
• Extensive usage of version control systems and tools : Git Remote Repository (GitHub Enterprise)
• Proven CI / CD Pipeline experience : GitHub Actions (Provision Configure Maintain and Secure Pipelines)
• Operations experience 2nd Line (advantageous when building IT systems)
• Payara / Grafana / Prometheus / Dynatrace
• Proven experience on using Generative AI (ChatGPT / Co-Pilot) to increase individual output
• Proven effective personal time management
• Proven Critical Thinking ability
• Proven ability to question and propose better requirements / design / efficiencies
• German speaking
• Automotive Domain Knowledge
• Cloud architecture : Azure- AKS Service

IAC (Terraform or Equivalent)

• Containerisation from build to deploy
• Angular experience covering the following focus topics

Angular (v12) including NgRx and advanced component patterns

• Proficiency in TypeScript JavaScript (ES6) HTML5 and CSS3 / SCSS
• Experience with front-end architecture modular design and scalable state management

Role Requirements

• Analyze business requirements and technical specifications to design and develop the backend architecture of software applications / platforms
• Select and implement appropriate programming languages frameworks and databases to meet the applications functional and non-functional requirements
• Ensure the backend components are scalable maintainable and aligned with industry best practices and standards
• Write clean efficient and well-documented code to implement the backend logic and functionality of the software applications / platforms
• Develop and integrate APIs microservices and other backend components to enable seamless communication between the front-end and back-end systems
• Ensure the backend components are secure reliable and capable of handling high-volume data and user traffic
• Design and implement efficient database schemas tables and queries to support the software applications data storage and retrieval requirements
• Optimize database performance including indexing query optimization and data partitioning techniques
• Collaborate with the quality assurance team to develop and execute comprehensive test plans for the backend components
• Provide technical support and troubleshoot issues related to the backend systems addressing bugs performance bottlenecks and security vulnerabilities
• Stay up to date with the latest trends best practices and technologies in back-end development to continuously enhance the organizations backend capabilities
• Explore and experiment with emerging backend technologies and techniques to drive innovation and improve the overall application performance and scalability
• Contribute to the organizations knowledge base and share best practices with the development team to foster a culture of continuous learning and improvement
• Deployment and maintenance of system services to ensure business continuity
• Assist user departments in drafting system requirement documentation based on business processes - work with Business Analysts to specify requirements
• Implement testing and monitoring tools to ensure the optimum availability of the system
• Review and present proposed system solutions to ensure high performing environment
• Develop systems solutions in line with quality and delivery standards of the organisation
• Propose and review system design and evaluate alternatives
• Preparation and maintenance of system / technical documentation to ensure continuous compliance (as per relevant Group Work Instructions Guidelines Policies and standards)
• Coach and give training to fellow colleagues and users when required
• Effective systematic problem solving and implementing of workarounds to ensure system availability as per relevant SLA
• Work in a full DEVOPS environment with international colleagues / external partners
• Any additional responsibilities assigned in the Agile Working Model (AWM) Charter

NB :

• South African citizens only.
• By applying you consent to be added to the database and to receive updates until you unsubscribe.
• If you do not receive a response within 2 weeks please consider your application unsuccessful.

#isanqa #BackEndDeveloper #Senior #Java #Quarkus #Microservices #CloudNative #ITHub #NowHiring #EnterpriseJava #RESTfulAPIs #fuelledbypassionintegrityexcellence

Key Skills

REST,Eclipse,Junit,Spring,Struts,SOAP,Jpa,Hibernate,Maven,J2EE,Jdbc,Java

Employment Type :

Full Time

Experience :

years

Vacancy :

1