java_backend_developer.status(active)

Hi, I'm Sudhir Singh.I build backend systems that don't fall over.

Java Backend Developer · 3.6+ years experience

I design and ship Java & Spring Boot services — REST APIs, microservices, and database-heavy systems tuned for throughput. I care about the things users never notice: uptime, latency, and code that survives production.

View my workGet in touch

  • runtime

    java 17 · spring boot 3

  • focus

    rest apis · microservices · sql tuning

  • location

    Bangalore - India

~/sudhir · system.status

sudhir@portfolio : interactive shell v1.0

last login: Thu Sep 10 2026 on ttys000

 

$ whoami

Sudhir Singh

Java Backend Developer · 3.6+ years experience

location Bangalore - India

status open to backend roles

email sudhirsingh30041@gmail.com

 

$ status

sudhir@singh

-----------------------------

runtime java 17 · spring boot 3

focus rest apis · microservices · sql tuning

p95_latency -20% after query tuning

plm_cycle_time -30% via workflow automation

location Bangalore - India

status open to backend roles

 

type 'help' for commands, or tap one of the chips below.

 

$

  • 0.0+

    years experience

  • 0

    companies

  • 0%

    avg. latency cut

// about

How I build things

I'm a Java backend developer who likes systems that are boring in the best way — predictable, observable, and fast under load. Most of my work sits at the intersection of Spring Boot services, relational databases, and the REST APIs that connect them.

Across enterprise, fintech, and product-lifecycle systems, the throughline has been the same: find where the backend is slow or fragile, and make it measurably better — trimming query time, adding concurrency where it's safe, and automating the workflows people used to do by hand.

  • 0.0+

    years experience

  • 0

    companies

  • 0%

    avg. latency cut

Sudhir Singh

Trust & reliability

On time, clear updates, code that ships.

// the person behind it

Crafting experiences powered by reliable backend systems

I'm Sudhir Singh, a java backend developer based in Bangalore - India. I sweat the details other people never see — the query plan behind a fast page load, the retry logic behind a reliable checkout, the API contract that lets two teams ship independently. If it's backend, I probably enjoy debugging it at 2am more than I should.

  • Clear communication
  • Production-ready code
  • On-time delivery

// skills

What I work with

Languages, frameworks, data stores and tooling — organized by category so you can scan what matters to you.

Frameworks and patterns behind the APIs and services I ship.

// tech_stack

Technology stack

The tools I reach for daily — from the JVM up through the database and the pipelines that ship it.

Java
Spring Boot
REST APIs
Docker
Git
Microservices
Java
Spring Boot
REST APIs
Docker
Git
Microservices
Spring MVC
Hibernate
MySQL
Maven
JUnit 5
Oracle
Spring MVC
Hibernate
MySQL
Maven
JUnit 5
Oracle
Spring Data JPA
SQL
JDBC
Postman
Mockito
Multithreading
Spring Data JPA
SQL
JDBC
Postman
Mockito
Multithreading

// projects

Featured projects

Three backend engagements, each solving a different flavor of the same problem: make the system faster, more reliable, or less manual — without breaking what already works.

Scalable Backend Services for Enterprise Applications — visual for the BO IT Solutions Pvt Ltd engagement
01current

~20%

latency reduced

BO IT Solutions Pvt LtdJan 2026 — Present

Scalable Backend Services for Enterprise Applications

Software Engineer

Building and maintaining the backend layer for high-throughput enterprise applications, from API design through database tuning.

  • Developed and maintained backend services using Java, Spring Boot, Spring Data JPA/Hibernate, and SQL for enterprise-scale applications.
  • Designed microservices and REST APIs supporting high-throughput workloads.
  • Optimized SQL queries and service logic, cutting API latency by ~20% and improving overall application performance.
  • Implemented concurrent processing with Java ExecutorService and multithreading to speed up backend processing.
  • Java
  • Spring Boot
  • Spring Data JPA
  • Hibernate
  • SQL
  • Multithreading
Agile PLM Modernization & Workflow Automation — visual for the Deloitte engagement
02

30%

faster cycle time

DeloitteJun 2024 — Oct 2025

Agile PLM Modernization & Workflow Automation

Java Developer

Extended and automated Agile PLM product-lifecycle workflows for enterprise clients, cutting manual effort out of engineering change processes.

  • Customized Agile PLM using Agile SDK, Java, and REST APIs to extend product lifecycle workflows.
  • Developed backend modules with Java 8 and Spring Boot for PLM integrations, automating ECO (Engineering Change Order) processes.
  • Integrated Agile PLM APIs with Spring Boot microservices for seamless data exchange between systems.
  • Improved PLM workflow cycle time by 30% and optimized PLM data extraction.
  • Java 8
  • Spring Boot
  • Agile PLM SDK
  • REST APIs
  • Microservices
Secure Backend Modules for Mutual Fund Platforms — visual for the Sterling Software Pvt Ltd engagement
03

~20%

latency reduced

Sterling Software Pvt LtdJan 2022 — Jun 2023

Secure Backend Modules for Mutual Fund Platforms

Java Developer

Built and hardened backend modules for WhiteOak and IDFC Mutual Fund applications — financial systems where correctness and speed both matter.

  • Built backend modules for WhiteOak and IDFC Mutual Fund applications using Java, Spring MVC, and REST APIs.
  • Designed scalable backend logic using Spring Framework and Hibernate/JPA for enterprise-grade reliability.
  • Developed secure REST APIs for customer-facing web applications.
  • Optimized SQL queries and service logic, reducing API latency by approximately 20%.
  • Java
  • Spring MVC
  • Hibernate/JPA
  • REST APIs
  • SQL

// more detail available on request

// timeline

Experience & education

Where the work happened — and the foundation it was built on.

  1. Jan 2026 — Presentwork

    Software Engineer

    BO IT Solutions Pvt Ltd

    Hyderabad

    Backend services in Java & Spring Boot for enterprise applications.

    • Java
    • Spring Boot
    • Spring Data JPA
    • Hibernate
    • SQL
    • Multithreading
  2. Jun 2024 — Oct 2025work

    Java Developer

    Deloitte

    Bengaluru

    Agile PLM customization, backend modules, and workflow automation.

    • Java 8
    • Spring Boot
    • Agile PLM SDK
    • REST APIs
    • Microservices
  3. Jan 2022 — Jun 2023work

    Java Developer

    Sterling Software Pvt Ltd

    Chennai

    Backend modules for WhiteOak and IDFC Mutual Fund applications.

    • Java
    • Spring MVC
    • Hibernate/JPA
    • REST APIs
    • SQL
  4. Jul 2017 — Jun 2021education

    B.Tech, Computer Science

    Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and Technology

    Chennai

    CGPA: 7.67 / 10

// certifications

Courses & certifications

Formal validation of the stack I work in every day.

// achievements

Impact so far

The numbers behind the work — measured in production, not on paper.

// contact

Let's talk backend

Open to backend engineering roles and Java / Spring Boot consulting. Send a note and it lands straight in my inbox.

// direct

sudhirsingh30041@gmail.com
  • Based in Bangalore - India · open to remote
  • IST (UTC+5:30) · usually replies within a day
  • open to backend roles
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