Response Informatics
Java Developer
Belfast
Posted about 20 hours ago
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Required Qualifications
- Strong professional experience as a senior software engineer building and operating backend services or APIs in production environments.
- Hands-on experience designing, developing, and delivering APIs using Java, Go, or both.
- Strong understanding of cloud-native application architecture, including containerized services, service-to-service communication, configuration management, observability, and resilience patterns.
- Experience delivering production services deployed on Kubernetes.
- Experience building highly available, scalable, and reliable distributed systems.
- Strong knowledge of API design principles, including REST, gRPC, versioning, authentication, authorization, error handling, and backward compatibility.
- Experience with microservices architectures and the operational challenges of running services at scale.
- Solid understanding of concurrency, performance optimization, caching, rate limiting, retries, timeouts, and fault tolerance.
- Experience working with public cloud platforms such as AWS, GCP, or Azure.
- Experience with CI/CD pipelines and modern software delivery practices.
- Strong understanding of Linux, containers, networking fundamentals, and cloud infrastructure concepts.
- Experience with production monitoring, logging, tracing, alerting, and incident response.
- Ability to lead technical design discussions, make pragmatic architecture decisions, and mentor other engineers.
- Strong ownership mindset with a focus on reliability, maintainability, and operational excellence.
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Nice to Have
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- Experience building large-scale platform services, developer platforms, infrastructure platforms, or internal service platforms.
- Experience operating mission-critical services with strict availability, latency, or throughput requirements.
- Experience with Kubernetes-native patterns such as Helm, Operators, Custom Resource Definitions, or GitOps workflows.
- Experience with distributed systems, stateful services, or high-volume transactional platforms.
- Experience with cloud-native observability tools such as Prometheus, Grafana, OpenTelemetry, ELK/OpenSearch, or similar.
- Experience implementing security best practices for APIs and cloud-native services, including OAuth2, mTLS, secrets management patterns.
- Experience with infrastructure as code tools such as Terraform, CloudFormation etc.
- Experience improving platform reliability through SLOs, error budgets, capacity planning, load testing, chaos testing, or disaster recovery planning.
- Experience contributing to architecture standards, engineering best practices, reusable service frameworks, or shared platform components.
- Experience with performance profiling and optimization for Java or Go services.
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Skills
Java
Go
Kubernetes
API Design
Microservices
AWS
GCP
Azure
CI/CD
Distributed Systems
gRPC
REST
Linux
Terraform
Prometheus
Grafana