Position Overview:

We are seeking a highly experienced Senior Java Backend Engineer with 15+ years of relevant experience in designing, developing and operating high-performance enterprise backend systems. The ideal candidate will have deep expertise in Java 17+, Spring Boot 3.x, PostgreSQL, Redis, microservices and event-driven architecture. The role involves owning the backend of a high-volume enterprise platform responsible for receiving, validating, storing and processing millions of transactions per month while maintaining strict data integrity, complete audit trails and low latency. Candidates must have hands-on experience designing, building and operating production systems at this scale and be able to explain performance bottlenecks, scalability challenges and the solutions implemented.

This position requires on-site work in Dubai, UAE, for a minimum period of six months.

Key Responsibilities:

Backend Service Design & Development

- Design, develop and maintain scalable Spring Boot microservices with clear domain boundaries and well-defined service responsibilities.
- Implement strict input validation, consistent error handling using RFC 7807-style responses and reliable transactional behaviour.
- Ensure business rules, data integrity and validation are enforced at the backend level.
- Build and maintain production-grade services capable of processing millions of transactions per month.

Database Design & Optimisation

- Design and maintain PostgreSQL schemas for high-volume transactional systems.
- Implement effective indexing, table partitioning and query optimisation strategies.
- Analyse and optimise database queries using EXPLAIN and performance profiling techniques.
- Manage database migrations, transaction isolation, connection pooling and zero-downtime schema changes.
- Maintain reliable performance for databases containing hundreds of millions of rows.

Caching & Distributed Coordination

- Implement Redis for caching, idempotency keys, rate limiting and distributed coordination.
- Design and manage distributed locks, queue or stream patterns and hot-path lookups.
- Define caching strategies, eviction policies, consistency requirements and failure-handling mechanisms.
- Monitor Redis performance, memory usage, persistence and clustering behaviour.

Event-Driven Processing & Messaging

- Develop reliable asynchronous processing pipelines using Kafka, RabbitMQ, Azure Service Bus, Redis Streams or equivalent technologies.
- Implement outbox patterns, retry mechanisms and dead-letter handling.
- Prevent transaction loss and duplication through reliable message-processing and idempotency strategies.
- Apply event sourcing,



CQRS or append-only ledger patterns where appropriate.

API Development & Integration

- Design and maintain secure, versioned REST APIs using OpenAPI-first development practices.
- Integrate backend services with Flutter applications, API gateways, middleware and external partner systems.
- Work with WSO2, Kong, Azure API Management or equivalent integration platforms.
- Implement OAuth2, OpenID Connect, webhook integrations and secure partner communication.
- Maintain consistent API contracts, authentication and authorisation mechanisms.

Reliability, Monitoring & Performance

- Implement structured logging, metrics and distributed tracing across backend services.
- Define service-level objectives (SLOs) and support production reliability initiatives.
- Conduct load testing, capacity planning and performance optimisation.
- Diagnose production issues using telemetry and monitoring tools.
- Participate in incident response and improve service resilience in Microsoft Azure environments.

Security & Audit Management

- Implement role-based access control and secure authentication and authorisation mechanisms.
- Maintain reliable audit trails and robust data-integrity controls.
- Apply secure secrets management and appropriate security controls for regulated environments.
- Follow secure coding practices, including relevant OWASP recommendations.

Testing & Quality Assurance

- Develop unit, integration and contract tests for backend services.
- Participate in rigorous code reviews and enforce engineering quality standards.
- Provide reproducible test environments, fixtures and documentation for functional and performance testing teams.
- Ensure backend services meet reliability, security and performance requirements.

Technical Leadership & Collaboration

- Lead technical discussions and contribute to backend architecture decisions.
- Document architecture decision records (ADRs), technical designs and functional specifications.
- Mentor engineers and promote clean code, maintainability and engineering best practices.
- Collaborate with cross-functional teams to deliver scalable and reliable enterprise solutions.

Must-Have Skills & Experience

- Experience: 15+ years of relevant professional experience in software engineering,



with demonstrable hands-on ownership of production Java backend systems processing millions of transactions per month or more.
- Java & Spring Boot: Strong expertise in Java 17+, Spring Boot 3.x, Spring Data JPA, Hibernate, Spring Security, Spring Cache, Bean Validation and Spring Boot Actuator.
- Java Fundamentals: Strong understanding of concurrency, memory management, multithreading and JVM performance tuning.
- PostgreSQL: Advanced expertise in database schema design, indexing, partitioning, EXPLAIN-driven query optimisation, transaction isolation and connection pooling.
- Redis: Production experience with caching, idempotency, distributed locks, Redis Streams, persistence, clustering and failure scenarios.
- Messaging & Asynchronous Processing: Hands-on experience with Kafka, RabbitMQ, Azure Service Bus, Redis Streams or equivalent technologies.
- Event-Driven Architecture: Understanding of event sourcing, CQRS, outbox patterns and reliable asynchronous processing.
- API Development: Expertise in REST APIs, OpenAPI specifications, API versioning, OAuth2, OIDC, webhooks and third-party integrations.
- API Gateways & Middleware: Experience with WSO2, Kong, Azure API Management or similar technologies.
- Cloud & DevOps: Practical experience with Microsoft Azure, Docker, Kubernetes, CI/CD pipelines and infrastructure-as-code.
- Monitoring & Observability: Experience with Prometheus, Grafana, OpenTelemetry, ELK or Azure Monitor.
- Testing & Engineering Practices: Strong understanding of unit testing, integration testing, contract testing, code reviews and secure software development.
- Communication: Excellent written and verbal communication skills, with the ability to document technical decisions and collaborate with distributed teams.
- On-Site Availability: Willingness and availability to work in office in Dubai, UAE, for a minimum of six months.

Nice to Have

- Experience in regulated industries such as healthcare, supply chain, fintech, government or other compliance-sensitive environments.
- Knowledge of structured-data standards such as EDI, HL7/FHIR or ISO 20022.
- Experience with WSO2 Enterprise Integrator, WSO2 API Manager or comparable middleware platforms.
- Familiarity with PostgreSQL extensions such as pgvector, PostGIS or TimescaleDB.
- Experience with read replicas, logical replication and large-scale database operations.
- Understanding of computer-system validation and audit requirements, including GAMP 5, 21 CFR Part 11, Annex 11 or ISO 27001 controls.

Experience: 15+ Years On-Site Requirement: Minimum 6 Months

Location: Dubai, UAE

Salary: As per company norms

Send Your Profile at [email protected]

📌 Senior Java Backend Engineer (Noida)
🏢 IDS Logic
📍 Noida