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Senior Java Engineer (Java + SQL) - Platform Engineering

Rainmaker Group

5 - 10 years

Bengaluru

Posted: 29/01/2026

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Job Description

Role Overview


Senior hands-on backend engineer responsible for building and owning Java-based backend systems focused on data connectivity, database interaction, and scalable services. This role expects deep technical ownership, strong system design skills, and long-term commitment.


Must-Have Technical Skills


8+ years of professional backend engineering experience

Strong hands-on Java (core Java, OOP, concurrency, performance tuning)

Very strong SQL

Complex queries

Joins, indexing, query optimization

Understanding of relational database internals

Experience building backend systems that interact heavily with relational databases

Experience designing and building scalable backend services / APIs

Solid understanding of backend architecture and system design


Preferred / Strongly Desired


Experience working on

Data connectors

Integration platforms

Drivers, SDKs, or data access layers

Experience with databases such as

PostgreSQL

SQL Server

Experience with cloud-native systems

Microservices

Docker and Kubernetes

Exposure to distributed systems, performance tuning, or observability


Ownership & Seniority Expectations


Ownership of backend modules or subsystems

Ability to review code and influence design decisions

Mentoring junior engineers and setting technical standards

Comfortable working with minimal supervision


Career Stability (Mandatory)


No frequent job switching

Preference for candidates with

23+ years average tenure per role

Repeated short stints (under ~18 months) will be rejected


Not a Fit If


You are primarily a people manager

You are frontend-focused

You are a CRUD-only backend developer


How to apply: Email your resume with a note to

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