Ujjwal Ranjan

Software Engineer

Muzaffarpur, Bihar, India3 yrs 11 mos experience

Key Highlights

  • Expert rating on Codeforces in competitive programming.
  • Implemented complex algorithms for data categorization.
  • Led multithreading implementations to optimize performance.
Stackforce AI infers this person is a Backend-heavy Fullstack developer with expertise in SaaS and Telecommunications.

Contact

Skills

Core Skills

JavaMachine LearningMultithreading

Other Skills

AWS LambdaAlgorithmsAmazon EKSAmazon RedshiftAmazon Relational Database Service (RDS)Amazon S3BitcoinBlockchainC (Programming Language)C++Cascading Style Sheets (CSS)CommunicationCompetitive ProgrammingComputer ScienceCritical Thinking

About

As a Mathematics and Computing graduate from IIT Kharagpur and currently working as an SDE 3 at Google, I am passionate about exploring various technologies including web development, backend systems, machine learning, and data analysis. With my experience in these areas, I have developed a keen interest in competitive programming and have achieved an expert rating on Codeforces. My dedication towards solving complex problems, coupled with my expertise in these fields, has enabled me to deliver impactful solutions in the past, and I look forward to continuing this trend in the future.

Experience

3 yrs 11 mos
Total Experience
1 yr 11 mos
Average Tenure
2 yrs 1 mo
Current Experience

Google

Software Engineer 3

May 2024Present · 2 yrs 1 mo · India · Hybrid

Algozenith

Mentor

May 2022Mar 2024 · 1 yr 10 mos · Nagpur, Maharashtra, India

  • Mentoring students throughout their journey of Learning Data Structures and Algorithms and aiding their preparation for Tech Interviews.

Samsung india

Senior Software Engineer

May 2022Mar 2024 · 1 yr 10 mos · Bengaluru, Karnataka, India

  • Early Identification of Root Cause :
  • ⋄ Implemented the RESTful API endpoints for handling file upload and generating pre-signed URLs for S3 using Spring Boot. ⋄ Executed gensim,Latent Dirichlet Allocation, Jaccard similarity, pyLDAvis to categorize 400 millions of records daily. ⋄ Applied real-time anomaly detection algorithms, including fbprophet, pmdarima, acf/pacfand OCSB, on time series data . ⋄ Employed event-driven architecture using AWS Lambda, S3, Amazon Kinesis Firehose, enabling actionable analytics.
  • Beyond 5G:
  • ⋄ Implemented memory optimization techniques for 5G DFCB block, achieving a 360MB (16%) reduction in memory usage.
  • ⋄ Led the multithreading implementation in C++ for the DFCB, leveraging parallel processing to boost application performance. ⋄ Utilized DPDK (Data Plane Development Kit) to achieve accelerated packet processing from network interface card (NIC).
REST APIsSpring BootJavaMachine LearningAWS LambdaMultithreading+1

Newton school

Mentor

Apr 2022Dec 2022 · 8 mos · Bengaluru, Karnataka, India

  • "I participated in coding contests regularly and recognized the difficulties faced by students in understanding the complex algorithms and data structures. To help others, I created a series of YouTube videos where I explained the mathematics and logic behind the solutions in an easy-to-understand manner. My videos provided a valuable resource for students who were struggling to grasp the concepts and I received positive feedback from viewers who found my explanations helpful. Through this project, I honed my skills in problem-solving, algorithm development, and video production."

Fareye

Back-end internship

Jan 2022May 2022 · 4 mos · India

  • I worked with the central logging system inside the Mobi application, gaining experience in developing and maintaining enterprise-level logging solutions.
  • Contributed to the design and development of the central logging system, working on features such as log aggregation, real-time monitoring, and analytics.
  • Gained experience in developing and maintaining secure logging systems using industry-standard tools and protocols, including Spring Security and JWT.
  • Worked in a team environment, collaborating with other developers and stakeholders to ensure the successful implementation of the central logging system inside the Mobi application

Samsung r&d institute india

Research And Development Intern

May 2021Jul 2021 · 2 mos · Bengaluru, Karnataka, India

  • contributed to the development of a third-party tracker system using HTTP ELD, Puppeteer, and various classifiers, gaining experience in web scraping and data classification.
  • Contributed to the design and development of the tracker system, working on features such as data extraction, pattern recognition, and machine learning.
  • Gained experience in developing and implementing web scraping solutions using Puppeteer, ensuring compatibility and stability across different browsers and platforms.
  • Worked with various classifiers such as decision trees, SVM, and Random Forest to analyze and classify large datasets, ensuring accuracy and consistency in the results.

Education

Indian Institute of Technology, Kharagpur

Integrated M.Sc. — Mathematics and Computing

Jan 2017Jan 2022

Resonance International School,Muzaffarpur

All India Senior School Certificate Examination

Apr 2014Apr 2016

Resonance International School,Muzaffarpur

All India Secondary School Examination

Apr 2012Apr 2016

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