Senior Integration Engineer

Jobitus; Ahmedabad District; On-site; INR 1,800,000 - 2,800,000; Full time

Job summary

Jobitus seeks a Senior Integration Engineer to design, develop, and operate reliable integration services using Java 17+ and Python 3.11+ in a microservices, API-driven environment on AWS.

You will lead integration patterns, ensure security, scalability, observability, and CI/CD excellence while mentoring peers and contributing to architectural decisions.

Qualifications

• Strong hands-on experience with Java 17+ and Spring Boot 3.
• Proficiency in Python 3.11+ and FastAPI.
• Knowledge of API security including OAuth2/JWT/OIDC.
• Hands-on with RabbitMQ or SQS/SNS and event-driven design.
• Understanding of microservice design patterns and idempotency.
• Experience with Docker and Kubernetes/EKS.
• Extensive AWS experience (ECS/EKS, Lambda, API Gateway, S3, RDS, IAM).
• Experience with ELK and distributed tracing.
• Proficient with Bitbucket and Jenkins CI/CD.
• Strong SQL and relational DB knowledge.

Responsibilities

• Design and develop integration microservices using Java 17+ with Spring Boot 3 or Python 3.11+ with FastAPI.
• Apply microservice patterns including Saga, Circuit Breaker, Retry with backoff/jitter, Bulkhead, Transactional Outbox, CQRS, Strangler Fig, and idempotent consumers.
• Develop synchronous and asynchronous integrations using REST, gRPC, RabbitMQ, SQS/SNS, and webhooks.
• Work with API contracts using OpenAPI and AsyncAPI.
• Build and deploy containerised services using Docker on AWS, including ECS/EKS, Lambda, API Gateway, RDS, S3, Secrets Manager, ECR, and IAM.
• Implement observability using Elasticsearch, Logstash, Kibana (ELK), Zipkin, Micrometre Tracing/Brave, and correlation IDs.
• Own CI/CD pipelines using Bitbucket and Jenkins, including quality gates, deployment, and rollback.
• Develop secure services using Spring Security 6, OAuth2, JWT, OIDC, mTLS, FastAPI security, and OWASP API Security Top 10.
• Work with async Python technologies including asyncio, Pydantic v2, httpx, aio-pika, aioboto3, Celery, and tenacity.
• Write unit, integration, and contract tests using JUnit 5, Mockito, Testcontainers, pytest, and Pact.
• Contribute to design documents, ADRs, code reviews, mentoring, and technical discussions.

Skills

Java 17+

Spring Boot 3

Spring Cloud

Python 3.11+

FastAPI

OAuth2/JWT/OIDC

API security

RabbitMQ/SQS/SNS

Event-driven architecture

Docker

Kubernetes/EKS

AWS (ECS/Lambda/API Gateway/S3/RDS)

ELK/Tracing

Bitbucket/Jenkins

SQL/Relational DBs

OpenAPI/AsyncAPI

Tools

Docker

Kubernetes

Jenkins

Bitbucket

ELK

Job description

ABOUT THE ROLE: We are looking for a Senior Integration Engineer to design and develop reliable, scalable, and secure integration services using Java 17+ and Python. The role will involve microservices, API and event-driven integrations, AWS, observability, CI/CD, and technical leadership.

KEY RESPONSIBILITIES:

• Design and develop integration microservices using Java 17+ with Spring Boot 3 or Python 3.11+ with FastAPI.
• Apply microservice patterns including Saga, Circuit Breaker, Retry with backoff/jitter, Bulkhead, Transactional Outbox, CQRS, Strangler Fig, and idempotent consumers.
• Develop synchronous and asynchronous integrations using REST, gRPC, RabbitMQ, SQS/SNS, and webhooks.
• Work with API contracts using OpenAPI and AsyncAPI.
• Build and deploy containerised services using Docker on AWS, including ECS/EKS, Lambda, API Gateway, RDS, S3, Secrets Manager, ECR, and IAM.
• Implement observability using Elasticsearch, Logstash, Kibana (ELK), Zipkin, Micrometre Tracing/Brave, and correlation IDs.
• Own CI/CD pipelines using Bitbucket and Jenkins, including quality gates, deployment, and rollback.
• Develop secure services using Spring Security 6, OAuth2, JWT, OIDC, mTLS, FastAPI security, and OWASP API Security Top 10.
• Work with async Python technologies including asyncio, Pydantic v2, httpx, aio-pika, aioboto3, Celery, and tenacity.
• Write unit, integration, and contract tests using JUnit 5, Mockito, Testcontainers, pytest, and Pact.
• Contribute to design documents, ADRs, code reviews, mentoring, and technical discussions.

REQUIRED SKILLS:

• Expert hands-on experience with Java 17+ and Spring Boot 3 / Spring Cloud.
• Strong hands-on experience with Python 3.11+ and FastAPI.
• Strong knowledge of Spring Security 6, OAuth2, JWT, OIDC, and API security.
• Hands-on experience with RabbitMQ or SQS/SNS and event-driven architecture.
• Strong understanding of microservice design patterns and idempotency.
• Hands-on experience with Docker and Kubernetes/EKS.
• Hands-on AWS experience with ECS/EKS, Lambda, API Gateway, SQS/SNS, RDS, S3, IAM, and ECR.
• Hands-on experience with ELK and Zipkin tracing.
• Strong experience with Bitbucket and Jenkins.
• Strong SQL and database knowledge.

GOOD TO HAVE:

• PostgreSQL/MySQL, Redis, MongoDB/DynamoDB.
• Terraform or CloudFormation.
• SOAP/XML, SFTP, CSV/EDI integrations.
• Webhook security including HMAC, rate limiting, replay protection, and idempotency.
• Flyway/Liquibase, Alembic, Redis caching.
• SonarQube, OWASP Dependency-Check, Snyk, Trivy.
• Apache Camel / Spring Integration / iPaaS.
• AI-assisted development using Copilot/Claude and LLM API integrations.