Senior Java Microservices Engineer (Spring Boot | Reactive | Cloud – AWS / Azure)

About Company,

Droisys is an innovation technology company focused on helping companies accelerate their digital initiatives from strategy and planning through execution. We leverage deep technical expertise, Agile methodologies, and data-driven intelligence to modernize systems of engagement and simplify human / tech interaction.

Amazing things happen when we work in environments where everyone feels a true sense of belonging and when candidates have the requisite skills and opportunities to succeed. At Droisys, we invest in our talent and support career growth, and we are always on the lookout for amazing talent who can contribute to our growth by delivering top results for our clients. Join us to challenge yourself and accomplish work that matters.

Senior Java Microservices Engineer (Spring Boot | Reactive | Cloud – AWS / Azure)

Fulltime

Remote in India(100%)

Note : -Someone who can work over lap PST time zone ( till 1 : 00 AM IST)

About the Role :

We are looking for a Senior Java Microservices Engineer with deep expertise in Java 17 , Spring Boot , and reactive programming . You’ll design and develop high-performance, scalable, event-driven microservices deployed across AWS and Azure cloud environments. This role offers the opportunity to influence architectural decisions, mentor peers, and shape modern backend solutions for large-scale distributed systems.

⚙️ Key Responsibilities :

Design, develop, and maintain reactive microservices using Java 17 , Spring Boot , and Spring WebFlux .

Implement event-driven architectures using Apache Kafka and Azure Event Hub .

Collaborate with DevOps teams for deployment, monitoring, and scaling in AWS and Azure .

Build and maintain secure, performant REST APIs with asynchronous, non-blocking I / O.

Ensure system reliability , observability , and effective monitoring (metrics, tracing, logging).

Conduct code reviews , drive best practices , and mentor junior engineers .

Design distributed systems with attention to performance, scalability, and fault tolerance .

Partner with cross-functional teams to deliver robust, production-grade microservices.

Must-Have Skills :

Core Technical Expertise

6+ years of hands-on experience with Java and the Spring ecosystem (Boot, Web, Data).

Java 17 and Spring Boot (Spring Web, Spring Data, WebFlux)

Reactive programming (Project Reactor)

Event-driven systems – Kafka (Producers, Consumers, Streams) or Azure Event Hub

REST API design & development (asynchronous, non-blocking)

AWS or Azure Cloud services (EC2, S3, Lambda, SNS / SQS, Event Hub, Azure SDKs)

Containerization (Docker) and familiarity with Kubernetes

Microservices testing – contract testing, mocking, Testcontainers

CI / CD pipelines – GitHub Actions, Jenkins, or similar

Observability tools – Grafana, Prometheus, ELK, Datadog

Architecture & System Design

Strong knowledge of distributed systems , including load balancing, caching, partitioning, and data flow optimization

Understanding of system scalability and fault tolerance

Experience in secure API design and performance optimization

Soft Skills

Excellent communication and collaboration skills

Ability to mentor junior developers and lead technical discussions

Analytical thinker with a problem-solving mindset

Proactive , self-driven, and passionate about emerging technologies

Comfortable working in Agile / Scrum environments

Preferred Qualifications :

Experience with both AWS and Azure cloud ecosystems

Exposure to observability platforms (Grafana, Prometheus, ELK, Datadog)

Familiarity with Kubernetes and container orchestration

Experience in Agile and CI / CD automation pipelines

Droisys is an equal opportunity employer. We do not discriminate based on race, religion, color, national origin, gender, gender expression, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law. Droisys believes in diversity, inclusion, and belonging, and we are committed to fostering a diverse work environment.