Senior Developer (Java, Networking & Communication Protocols, ReactJS)

Job Description:

Senior Developer (Java, Networking & Communication Protocols, ReactJS)

Location: Bengaluru, Hyderabad, Pune, Kochi, Noida, Gurgaon, Bhubaneswar

Experience: 8+ Years (Mandatory)

Note : We are looking for Immediate Joiners, NP with more than 2 months and 3 months are not applicable for this role plus if the candidate is serving the NP and the left days are more than 1 month they also can apply.

Role Overview

Seeking a Senior Developer with deep expertise in Java development, networking protocols, and ReactJS. The ideal candidate will architect, design, and lead the development of scalable applications, mentor engineers, and ensure delivery excellence. This role involves technical leadership, stakeholder management, and hands-on engineering.

Key Responsibilities

Architecture, Design & Delivery

• Lead solution architecture and design for Java-based applications; define patterns for API design, data access, and resiliency.
• Plan and sequence engineering work, unblock teams, and ensure timely, quality releases.
• Partner with front-end engineers (ReactJS), DevOps, QA, and business stakeholders for delivery in Agile ceremonies.

Development & Engineering

• Design and develop services/APIs using Core Java, Spring, and Hibernate; implement robust error handling, logging, and observability.
• Consume/publish REST APIs; handle schema contracts, pagination, retries, timeouts, idempotency, and rate limits.
• Build and maintain secure integrations using SFTP, HTTPS, SSL/TLS, and certificate/keystore management.

Data & Performance

• Model, query, and optimise SQL (e.g., MySQL/PostgreSQL) and NoSQL (e.g., MongoDB/Cassandra) data stores.
• Profile/tune hot paths, queries, and connection pools; ensure SLIs/SLOs and proactive alerting.

Quality, Security & Compliance

• Write unit/integration tests (e.g., JUnit), participate in peer reviews, adhere to coding standards, and support CI workflows.
• Follow organisational policies for secrets management, certificate rotation, data protection, and audit readiness.

Leadership & Mentorship

• Mentor engineers, conduct code reviews, set coding standards, and drive technical excellence.

Must-Have Skills

Core Backend & Frameworks

• Core Java (8+ years): OOP, collections, exceptions, multithreading/concurrency, streams; clean coding and design fundamentals.
• Spring/Hibernate (8+ years): RESTful APIs, dependency injection, ORM mapping, transaction management.

Databases

• SQL (8+ years): Joins, indexing, query plans, transactions, normalisation/denormalisation, performance tuning.
• NoSQL (5+ years): Document/column stores, schema design, sharding/replication basics, CRUD and query optimisation.

Networking & Security

• Networking & Protocols (5+ years): SFTP, HTTPS, SSL/TLS; certificate chains, keystores/truststores, cipher policies, and secure configuration.

Testing & DevOps

• Testing & Tools: JUnit (or equivalent), Git, build tool (Maven/Gradle), CI/CD.

Frontend Exposure

• ReactJS (2+ years): Hooks, component/state patterns, API integration; ability to triage UI to API issues.

Leadership

• Leadership: Proven experience in technical leadership and mentoring.

Thanks & Regards,

Vibha Seth

Technical Recruiter

E-Mail:

Contact: