Senior Java Developer (Temporary Contract)

Applaudo Studios

23h

About The Position

We are seeking a Senior Java Backend Engineer with strong experience building scalable, high-performance backend systems within distributed and cloud-native environments. The ideal candidate is passionate about designing reliable architectures, improving platform resilience, and delivering secure, maintainable solutions that support high-volume transactional systems. This role requires a proactive and solution-oriented mindset, capable of working across complex microservices ecosystems while balancing scalability, performance, and operational excellence. Comfort navigating modern backend architectures, containerized environments, observability practices, and cloud infrastructure is essential, as is the ability to collaborate closely with engineering and product teams. We value ownership, technical leadership, and continuous improvement. The candidate should be adaptable, detail-oriented, and capable of mentoring engineers, driving technical decisions, and contributing to architecture and platform evolution initiatives. This position is offered under a 2-month contractor model.

Requirements

6+ years of professional experience in Java backend development.
2+ years of hands-on experience with Spring Boot and Spring WebFlux.
Strong experience designing and maintaining Microservices architectures and distributed systems.
Solid understanding and practical application of Hexagonal Architecture (Ports & Adapters).
Proven experience building and optimizing backend applications in high-throughput, low-latency environments.
Experience with relational and non-relational databases such as PostgreSQL, MySQL, or DynamoDB.
Familiarity with distributed caching technologies such as Redis or Memcached.
Hands-on experience with Azure cloud services, including AKS, App Service, Application Gateway, and Storage Account.
Strong experience with Docker and Kubernetes for containerization and orchestration.
Exposure to CI/CD practices and tools such as Git, GitHub Actions, Jenkins, or Terraform.
Solid understanding of secure coding practices, authentication flows, and encryption fundamentals.
Experience implementing monitoring and observability solutions such as Datadog, Prometheus, or Grafana.
Experience working with SaaS platforms or high-volume transactional systems such as eCommerce or fintech platforms.
Strong communication skills and advanced English proficiency for direct collaboration with US-based teams and stakeholders.
Strong experience with Java and Spring Boot
Experience with Microservices and Hexagonal Architecture.
Hands-on experience with Azure cloud services (AKS, App Service, Application Gateway, and Storage Account).
Advanced English proficiency.

Nice To Haves

Experience with Kafka, GraphQL, gRPC, or Elasticsearch.
2+ years of experience mentoring engineers, leading initiatives, or owning critical services.

Responsibilities

Design and develop scalable, fault-tolerant backend services following Microservices and Hexagonal Architecture principles.
Deploy and manage containerized applications on Azure Kubernetes Service (AKS) using Docker and Azure-native infrastructure.
Collaborate with Product and Engineering teams to translate business requirements into scalable technical solutions.
Create architecture documentation, estimations, and user stories that support Agile delivery processes.
Ensure platform performance, security, reliability, and SLA compliance through engineering best practices.
Mentor and guide engineers while promoting ownership, quality, and technical excellence.
Lead and participate in code reviews to ensure scalability, maintainability, and adherence to engineering standards.
Contribute to observability, incident response, and continuous platform improvement initiatives.
Influence technical roadmaps and contribute to architecture, tooling, and platform decisions.
Support operational excellence initiatives across backend systems and cloud environments.