GraphQL developer

XPT Software Australia Pty Ltd; Sydney; On-site; AUD 120,000 - 160,000; Full time

Job summary

XPT Software Australia Pty Ltd in Sydney is seeking a GraphQL Developer to design, develop, and maintain scalable GraphQL APIs and Java-based backend services. You will build reusable schemas and data access layers, and implement REST and GraphQL integrations with enterprise systems.

The role focuses on microservices, cloud-native patterns, API security, and ongoing modernization within a managed services environment. Strong experience in Java, Spring Boot, GraphQL, and AWS is required.

Qualifications

• Experience designing and implementing GraphQL APIs and Java backends.
• Strong knowledge of microservices architectures and API security.
• Experience with cloud-native development and integration patterns.
• Familiarity with IAM, encryption, and data protection practices.

Responsibilities

• Design, develop, and maintain GraphQL APIs and Java-based backend services.
• Build scalable GraphQL schemas, resolvers, and data access layers.
• Develop REST and GraphQL integrations with enterprise systems.
• Implement microservices using Java and Spring Boot in cloud environments.
• Optimize API performance, security, and observability.
• Collaborate with Cloud, Platform Engineering, and Architecture teams.
• Participate in incident, problem, and change management within a BAU context.

Skills

Java

Spring Boot

GraphQL

REST API

Microservices

AWS

Docker

Kubernetes

CI/CD

SQL

Observability

Communication

Tools

AWS

Docker

Kubernetes

Job description

XPT Software Australia Pty Ltd | Contract

Sydney, Australia | Posted on 08/11/2026

• XPT SoftwareAustralia PTY Ltd, incorporated in 2016, is a Software Services company
  
• XPT works with topclients across Australia in Banking, Insurance, Telecom,Retail, Energy, Mining and Manufacturingdomains.
  
• We have 120+technocrats in Australia working at our clientlocations.
  
• XPT SoftwareAustralia is part of group companies which has globalpresence across India & Europe.
  
• We have served100+ clients globally, fulfilling their onsite-offshoreneeds.
  

Job Description

Job Description:

TheGraphQL(GQL) Developer is responsiblefor designing, developing, maintaining, and supporting scalable API andintegration solutions usingGraphQLand Java technologies. The rolewill work closely with application, platform, cloud, and architecture teams todeliver secure, high-performing, and reusable services that enable digitalmodernization and cloud-native application development across the portfolio.

This positionwill contribute to the development of modern microservices-based architectures,API governance, integration patterns, and continuous improvement initiativeswhile supporting operational excellence within a managed services environment.

• Design, develop, andmaintainGraphQLAPIs and Java-based backend services.
  
• Build reusable,scalable, and secureGraphQLschemas, resolvers, and data accesslayers.
  
• Develop RESTandGraphQLintegrations with enterprise applications,databases, and external systems.
  
• Implementmicroservices using Java, Spring Boot, and cloud-native developmentpatterns.
  
• Optimize API performance,query execution, caching, and payload efficiency.
  
• Ensure adherence toAPI security standards including authentication, authorization, and dataprotection.
  
• Participate inapplication modernization initiatives including microservicestransformation and cloud adoption.
  
• Collaborate withCloud, Platform Engineering, and Architecture teams to implement scalableintegration solutions.
  
• Supportapplicationonboardingonto cloud platforms and containerized environments.
  
• Assist in designingintegration patterns and reusable service frameworks.
  
• Support SLA-drivenproduction environments and participate inincident,problem,and change management activities.
  
• Perform root causeanalysis and remediation of application and integration issues.
  
• Monitor applicationperformance and implement proactive improvement
  
• Contribute toarchitecture reviews, technical governance, and development standards.
  
• Maintain developmentrunbooks, operational procedures, and support documentation.
  
• Define and maintaincloud architecture principles, standards, reference architectures, anddesign patterns across the portfolio.
  
• Develop cloudtransformation and modernization roadmaps aligned to business andtechnology strategy
  
• Lead solutionarchitecture reviews and provide governance for cloud implementationsacross projects and programs.
  
• Design and govern AWSinfrastructure and platform services including EKS, EC2, VPC, Route53,Transit Gateway, S3, RDS, IAM, Lambda, CloudWatch, and related services.
  
• Establish secure cloudarchitecture patterns incorporating Identity and Access Management (IAM),encryption, secrets management, network segmentation, and security bestpractices.
  
• Drive applicationmodernization initiatives including containerization, cloud-native architectures,microservicesadoption, and serverless computing.
  
• Collaborate with CyberSecurity teams to ensure compliance with enterprise, government, andregulatory requirements.
  
• Identify technologyrisks, technical debt, and improvement opportunities, and establishremediation roadmaps
  

Yourresponsibilities will also include gathering system and user requirements,building modules and testing features before release. You must havehands-on experience developing,deploying,and maintainingfunctional, secure and high-quality applications. To be successful in this roleyou willhave:

• Experience working inSLA-driven / managed services (BAU) environments with incident, problem,and change management practices.
  
• Strong hands-onexperience inJava, Spring Boot,GraphQL, and REST APIdevelopment.
  
• Expertise inGraphQLschemadesign, resolvers, queries, mutations, and API security.
  
• Experience buildingand supportingmicroservicesand integrating enterpriseapplications.
  
• Knowledge ofAWS,Docker, Kubernetes, and cloud-native development practices.
  
• Familiarity withCI/CDpipelines, Git, automated testing, and DevOps practices.
  
• Strong SQL anddatabase experience (Oracle, PostgreSQL, SQL Server, etc.).
  
• Experience withmonitoring and observability tools such asDynatrace, Grafana,ELK, or CloudWatch.
  
• Excellentcommunication, analytical, and problem-solving skills.
  
• Experience creatingtechnical designs, API specifications, use cases, and knowledgerepositories.
  
• PrepareKnowledgerepository for project(s)
  
• Willingness to learnnew technologies and domain areas.