Open to backend roles

PraneethReddy

Java backend engineer. I build banking microservices that move money exactly once: Quarkus, gRPC, PostgreSQL, Infinispan.

View workRésumé

Experience · Oct 2025 – Sep 2026

Software Engineer Trainee, iCABO Global

iCABO Gen4. An AI-native, cloud-native core banking platform: modular, event-driven microservices for retail and commercial banking, with multi-tenancy.

01/06 · Core banking APIs, end to end

  1. 10+REST endpoints shipped

    Core banking APIs, end to end

    Built and maintained backend services in Java and Quarkus inside a hexagonal-architecture codebase, from contract to production.

    • Java 17
    • Quarkus
    • Hexagonal

  2. gRPCProtobuf contracts between services

    Reliable service-to-service calls

    Designed REST APIs to HTTP standards and gRPC services with Protobuf contracts across the account, product and transaction services.

    • gRPC
    • Protobuf
    • REST

  3. −60%repeated database queries

    Distributed caching with Infinispan

    Cached frequently read business data in Infinispan, cutting repeated PostgreSQL queries by about 60% and speeding up high-traffic endpoints.

    • Infinispan
    • PostgreSQL

  4. 70→90%unit test coverage

    Tests that catch real bugs

    Raised coverage with JUnit 5 and Mockito, and traced defects to root cause, including build failures and cache and balance-computation issues.

    • JUnit 5
    • Mockito
    • TDD

  5. −70%manual validation effort

    YAML-driven regression suite

    Automated regression runs through a YAML-driven test framework, so whole request flows are replayed on every change instead of checked by hand.

    • YAML
    • API testing

  6. Dockerservices containerised and validated

    Shipped in containers

    Containerised and validated services with Docker, and kept Git history clean with branching and code-review practices across the lifecycle.

    • Docker
    • Git
    • Azure DevOps

Worked in Agile/Scrum sprints with product, backend and QA teams: sprint planning, daily stand-ups and code reviews.

Projects

Built outside the day job

A payment engine you can break on purpose, and a website for a paying client.

Personal project

Payment Retry Engine

A payment service that charges exactly once, even when clients retry after a network timeout or the server crashes mid-request.

  • Idempotency keys turn a retried request into a lookup of the first result, so a retry never becomes a second charge.
  • An outbox table is written in the same transaction as the payment, so no payment is lost if the process dies before calling the bank.
  • Failed bank calls retry with exponential backoff, then move to a dead-letter queue for review.
  • Workers claim jobs with SELECT … FOR UPDATE SKIP LOCKED, so several instances never process the same payment.
  • Java
  • Quarkus
  • PostgreSQL
  • Docker
  • JUnit 5
Code on GitHub

Live demo · simulated

  1. Clientmobile app
  2. Payments APIQuarkus
  3. PostgreSQLpayments + outbox
  4. Workeroutbox poller
  5. Bankexternal
  6. Dead lettersfor review
  1. Choose what goes wrong, then press Send payment.
Requests
0
Payments
0
Charges
0
Dead letters
0

Freelance client

Amramrutam Mango Farm

A production marketing site for an organic mango farm in Andhra Pradesh, with SEO work, later extended with a Java backend: REST APIs, PostgreSQL persistence and Docker deployment.

  • Owned delivery end to end, from API design to client integration.
  • Deployed on Vercel and live for the client's customers.
  • Java
  • REST
  • PostgreSQL
  • Docker
  • Vercel
  • SEO
Live site
amramrutam.vercel.app
Home page of the Amramrutam Mango Farm website: 'Discover the Essence of Organic Mangoes' beside a photo of cut mangoes.
VercelJava REST APIPostgreSQLin Docker

Skills · 32 tools

What I build with

Highlighted on the sphere: what I use every day in production. Drag it to spin.
Core Java
Java 8 · Java 17 · OOP · Collections · Exception handling
Backend & APIs
Quarkus · Spring Boot · REST · gRPC · Protobuf · Microservices
Data & caching
PostgreSQL · MySQL · Redis · Infinispan
Testing & quality
JUnit 5 · Mockito · TDD · Integration testing · API testing · SonarQube
Architecture
Hexagonal · Event-driven · SOLID · Design patterns
Tools
Git · GitHub · Docker · Postman · VS Code · Azure DevOps · Agile Scrum

Education

Computer applications, Bengaluru

  1. Aug 2023 – Sep 2025

    Master of Computer Applications (MCA)

    CMR Institute of Technology, Bengaluru

    93.2%aggregate

  2. Oct 2020 – May 2023

    Bachelor of Computer Applications (BCA)

    CMR University, Bengaluru

    83.2%aggregate

Certification

Full Stack Web Development Training · TAP Academy, 2025

View certificate

Contact

Hiring a backend engineer?

I'm open to backend roles and based in Bengaluru. Email is the quickest way to reach me.
praneethreddy.dev@gmail.com