Senior Integration Engineer – Java / Python

looking for a Senior Integration Engineer to design, develop, and own reliable integration services that connect our platform with third-party systems.

You will work across Java, Python, microservices, messaging, AWS, security, and observability to build integration services that are secure, scalable, and resilient under real-world workloads.

This role is ideal for a senior backend engineer who has hands-on experience designing production-grade microservices and enjoys solving complex integration and distributed-system challenges.

Key Responsibilities

• Design and develop integration microservices using Java 17+ / Spring Boot 3 and Python / FastAPI.
• Design reliable microservice architectures using patterns such as Circuit Breaker, Retry, Saga, Transactional Outbox, CQRS, and idempotency.
• Build synchronous and asynchronous integrations using REST, gRPC, RabbitMQ, AWS SQS/SNS, and webhooks.
• Define and maintain API contracts using OpenAPI and AsyncAPI.
• Develop secure services using Spring Security 6, OAuth2, JWT, OIDC, and appropriate API security practices.
• Build asynchronous Python services using FastAPI, asyncio, httpx, Pydantic, and messaging libraries.
• Develop scalable message producers and consumers with retry, dead-letter, and idempotency mechanisms.
• Containerize applications using Docker and deploy services on AWS using technologies such as ECS/EKS, Lambda, API Gateway, ECR, RDS, and S3.
• Implement observability using ELK, Kibana, Elasticsearch, Logstash, and Zipkin for centralized logging and distributed tracing.
• Own CI/CD pipelines using Jenkins and Bitbucket, including automated testing, quality checks, deployment, and rollback.
• Write and maintain automated tests using JUnit 5, Mockito, Testcontainers, pytest, and contract testing where applicable.
• Participate in architecture discussions and create design documents and Architecture Decision Records (ADRs).
• Conduct code reviews and mentor junior engineers.
• Troubleshoot production and lower-environment integration issues and identify root causes.
• Collaborate with engineering teams to ensure integrations are reliable, secure, maintainable, and scalable.

Required Skills

• 4–6 years of professional software development experience.
• Strong hands-on experience with Java 17+.
• Strong expertise in Spring Boot 3 / Spring Cloud.
• Experience building and designing microservices in production environments.
• Strong hands-on experience with Python and FastAPI.
• Good understanding of asynchronous programming using asyncio, async/await, httpx, and Pydantic.
• Strong understanding of microservice design patterns such as Saga, Circuit Breaker, Retry, Transactional Outbox, and Idempotency.
• Hands-on experience with RabbitMQ or AWS SQS/SNS.
• Strong understanding of REST APIs and experience with gRPC is an advantage.
• Hands-on experience with AWS services, preferably ECS/EKS, Lambda, API Gateway, SQS/SNS, RDS, S3, IAM, and ECR.
• Strong knowledge of Docker and practical experience with Kubernetes/EKS.
• Hands-on experience with Spring Security, OAuth2, JWT, and API security.
• Experience with centralized logging and distributed tracing using ELK and Zipkin or equivalent tools.
• Experience with Jenkins and Bitbucket CI/CD workflows.
• Strong knowledge of automated testing using JUnit, Mockito, pytest, or similar tools.

Good to Have

• PostgreSQL / MySQL
• Redis
• MongoDB / DynamoDB
• Terraform or CloudFormation
• Flyway / Liquibase / Alembic
• SOAP/XML integrations
• SFTP, CSV, or EDI integrations
• Webhook security, HMAC, rate limiting, and replay protection
• SonarQube and dependency/security scanning
• Apache Camel or Spring Integration
• Experience with third-party or external system integrations
• AI/LLM API integration exposure

What We're Looking For

• Someone who has designed and owned production microservices, not just worked on CRUD applications.
• Strong problem-solving skills and the ability to troubleshoot distributed systems.
• Someone who understands how to design integrations that remain reliable when downstream systems fail or become unavailable.
• A developer who can make sound technical decisions and explain architectural trade-offs.
• Someone comfortable working across both Java and Python.
• Strong communication, collaboration, code-review, and mentoring skills.
• A hands-on engineer who takes ownership from design through deployment and production support.

Why Join Us?

• Work on complex, real-world integration and SaaS engineering challenges.
• Work with modern technologies across Java, Python, AWS, microservices, messaging, and cloud infrastructure.
• Take ownership of integration architecture and production services.
• Collaborate with experienced engineering teams.
• Opportunity to mentor engineers and contribute to technical decisions.

Pay: ₹1,500,000.00 - ₹1,800,000.00 per year

Benefits:

• Food provided
• Health insurance
• Provident Fund
• Work from home

Work Location: Hybrid remote in Gandhinagar, Gujarat 382007