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Senior Java Developer

Senior Java Developer

TechKareer

5 years

12 - 15 Lacs

delhi india

Posted:1 day ago| Platform:

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Skills Required

java developer architecture mentoring design latency microservices rest kafka tuning profiling reliability circuit data model relational postgresql mysql nosql redis security jwt management compliance coding github gitlab jenkins test strategy junit testcontainers code metrics logging opentelemetry engineering documentation estimate jpa hibernate api concurrency rabbitmq indexes transactions docker kubernetes aws gcp azure testing integration openapi communication kotlin scala graphql terraform helm elasticsearch olap stack shipping cadence learning development

Work Mode

On-site

Job Type

Full Time

Job Description

Location:

Mumbai or Delhi

Employment Type:

Full-timeWhy this roleYou’ll own critical backend services used by millions, shaping architecture, performance, and developer experience. If you love clean APIs, resilient systems, and mentoring engineers, this is for you.What you’ll do

Design & build high-throughput, low-latency services with Java 17+ & Spring Boot.
Own architecture for domain-driven, event-driven microservices (REST/gRPC, Kafka/Pulsar).
Scale & harden systems: performance tuning (GC, profiling), reliability (circuit breakers, retries), and SLOs.
Data layer: model and optimize relational (PostgreSQL/MySQL) and NoSQL (Redis/Elastic/Mongo) stores.
Security-first: implement OAuth2/OIDC, JWT, secrets management, and compliance-minded coding.
DevEx & quality: CI/CD (GitHub Actions/GitLab/Jenkins), test strategy (JUnit/Mockito/Testcontainers), code reviews.
Observability: metrics, tracing, and logging (OpenTelemetry/Prometheus/Grafana).
Mentor & lead: guide mid/junior engineers; uphold engineering standards and documentation.
Partner with product: break down epics, estimate, and deliver iteratively with clear success metrics.

What you’ll need (must-haves)

3–5 years professional backend experience with Java (11/17+).
Strong in Spring Boot, JPA/Hibernate, REST API design, and concurrency.
Experience with message brokers/streams (Kafka/RabbitMQ/Pulsar) and event-driven patterns.
Solid RDBMS fundamentals (indexes, transactions) and caching (Redis).
Hands-on with Docker and Kubernetes on AWS/GCP/Azure.
Proven performance tuning (profilers, GC logs), and resilience (timeouts, bulkheads).
Testing depth across unit, integration (Testcontainers), and contract tests (OpenAPI/PACT).
Clear communication, product sense, and ownership mindset.

Nice to have

Kotlin/Scala, Reactive (Project Reactor), gRPC, GraphQL.
Terraform, Helm, ArgoCD; feature flags (LaunchDarkly/Unleash).
Elasticsearch/OpenSearch, OLAP (ClickHouse/BigQuery), CDC/Debezium.
Payment, fintech, or security-sensitive domains; GDPR/PII handling.
Experience leading a squad or tech initiatives.

What we offer

Impactful problems at venture-backed startups via TechKareer.
Modern stack, strong engineering culture, and fast shipping cadence.
Competitive pay, benefits, flexible work, learning budget.
Clear growth paths: Tech Lead / Staff Engineer.

Skills: java,backend development,springboot

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