---
title: "Sajann Kumar SSingh - Software Development Engineer in Dhanbad Block | Tal"
description: "Meet Sajann Kumar SSingh, Full Stack Developer | Java Spring Boot Backend | Angular React Frontend | 3+ Yrs | Open to Work based in Dhanbad Block."
image: "https://tal.club/meet/sajann/share-image"
---

# Sajann Kumar SSingh on Tal

## Headline

Full Stack Developer \| Java Spring Boot Backend \| Angular React Frontend \| 3\+ Yrs \| Open to Work

## About

Full Stack Engineer \| 3\+ yrs Java Spring Boot \+ Angular/React Software engineer who dissects every topic to atomic detail—reading exhaustively for 100% clarity, even on minutiae\. Perfectionist learner: master one thing completely before moving \(Angular modules → RxJS → LLMs\)\. Examples over theory always; need concrete demos to internalize "how" \+ "why\." Conclusions mandatory—summarize context or I re\-read source docs\. People who’ve worked with me usually notice the same pattern: I don’t stop at “it works\.” I keep pulling on the thread until I understand why it works, where it breaks, and how to make it safer and more scalable\. Whether it’s hardening a password manager with AES\-256, breaking a top\-ranked LeetCode solution with an edge\-case test, or mentoring juniors through tricky Angular state bugs, my default mode is the same: design thoughtfully, ship reliably, and leave the system in a better state than I found it\. Valuefy \(2023\-2026\): Shipped Angular modules for 4 banking/HNI clients—0 critical bugs in 12mo using shared components\. Built React/Node PDF generator \(50% faster, 8→0 complaints/mo\)\. Deployed 25\+ Spring Boot microservices \(90% test coverage\) for EAM data migration\. Trained 2 juniors Angular from 0→independent in 6 weeks\. MAQ Software \(2022\-23\): C\#/\.NET QA workflows \(30% faster testing\), UI autofill \(40% client time savings\), Azure DevOps REST API \(1\-week delivery\)\. Projects: AES\-256 Chrome password vault \(OAuth\+Drive sync\), React/Spring personal assistant w/ local LLM email summary \(20% faster\)\.

## Location

Dhanbad Block

## Work experience

Software Development Engineer at Valuefy, Apr 2023 \- Mar 2026 · 3 yrs, Thane, Maharashtra, India, Worked on full stack development across Angular, React, Node\.js, Java, and Spring Boot for banking and wealth management products\. \- Shipped Angular modules across 4 banking and wealth management deployments with 0 critical bugs over 12 months using shared component libraries\. \- Engineered data\-driven Angular components with multi\-validation checks, reducing Ul/UX layout development time by 30% for fluid client requirements\. \- Incorporated the simple\-keyboard package into legacy Form\.io components, onboarding international clients requiring virtual Chinese and Arabic input\. \- Strengthened production security using Webpack obfuscation, achieving a 100% reduction in unauthorized client\-side reverse\-engineering and data\-tampering attempts\. \- Built an HTML\-to\-PDF engine using Puppeteer and Cheerio, implementing backward\-compatible layouts that cut generation time by 50% and formatting complaints from 8/month to 0\. Seamlessly linked the backend with React\. \- Designed a user\-onboarding module using Node\.js to dynamically link complex entity relationships \(beneficiaries/directors\) and generate unified multi\-party corporate documentation, reducing documentation time by 40%\. \- Deployed 5\+ Java/Spring Boot microservices to perform real\-time data transformation and stream processing, utilizing Kafka for high\-throughput message routing\. \- Provisioned and exposed secure RESTful APIs using Spring MVC, Spring Security OAuth2, and OpenAPl specifications, ensuring reliable integration with internal and downstream enterprise systems\. \- Implemented stateless authentication and session caching by integrating JWT tokens with Redis, optimizing microservice security and reducing token validation latency\. \- Architected high\-integrity ETL pipelines by benchmarking and implementing data flows using NiFi, Airbyte, and Talend\.

Associate Software Engineer at MAQ Software, May 2022 \- Mar 2023 · 11 mos, Hyderabad, Telangana, India, Worked on software engineering and client\-facing workflow improvements using C\#/\.NET MVC, frontend enhancements, and API integrations\. • Streamlined client QA workflows using C\#/\.NET MVC, reducing testing time by 30% while increasing test coverage\. • Enhanced UI with autofill, component filtering, and load time improvements, reducing client software usage time by 40%\. • Integrated Azure DevOps REST API to extract and visualize project data, with delivery completed within 1 week\.

## Education

Bachelor of Technology \- BTech, Computer Science, Lovely Professional University

Diploma, Computer Science and Engineering, Lovely Professional University

[View the original profile](https://tal.club/meet/sajann)

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