Senior Integration Engineer (Java+Python)

Jobitus; Ahmedabad District; On-site; INR 1,800,000 - 3,000,000; Full time

Job summary

Jobitus is seeking a Senior Integration Engineer in Ahmedabad to design, develop, and operate scalable integration services. You will work with Java 17+ or Python 3.11+ to build microservices, APIs, and event-driven integrations on AWS, with strong observability and secure design.

You will lead CI/CD, implement advanced patterns, and mentor peers while collaborating on ADRs and design discussions. The role emphasizes reliability, security, and performance in cloud-native environments.

Qualifications

• Hands-on experience with Java 17+ and Spring Boot 3 / Spring Cloud.
• Strong Python 3.11+ with FastAPI knowledge.
• Deep understanding of API security (OAuth2, JWT, OIDC).
• Experience with event-driven, asynchronous integrations.
• Proficient in containerization and cloud deployments on AWS.

Responsibilities

• Design and develop integration microservices using Java or Python.
• Apply microservice patterns and ensure idempotent, reliable integrations.
• Develop synchronous and asynchronous integrations with REST, gRPC, queues, webhooks.
• Work with OpenAPI/AsyncAPI contracts and API security.
• Build and deploy Dockerized services on AWS ECS/EKS and related services.
• Implement observability with ELK and tracing tools; own CI/CD pipelines.
• Mentor teammates and contribute to design docs and code reviews.

Skills

Java 17+ & Spring Boot 3

Python 3.11+ & FastAPI

Security & API protection

RabbitMQ / SQS/SNS

Docker & Kubernetes/EKS

AWS (ECS/EKS, Lambda, API Gateway)

ELK tracing & observability

CI/CD (Bitbucket, Jenkins)

SQL & database knowledge

Tools

Docker

Kubernetes/EKS

OpenAPI / AsyncAPI

Bitbucket

Jenkins

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.