Rohit Ranjan Singh

Software Engineer

Bengaluru, Karnataka, India3 yrs 3 mos experience

AI EnabledAI ML Practitioner

Key Highlights

Designed and built core API microservice for 45+ clients.
Achieved 40% lower service latency on AWS ECS.
Developed semantic search APIs for financial institutions.

Stackforce AI infers this person is a SaaS and Fintech developer with strong backend and API development expertise.

Contact

Skills

Core Skills

AwsMicroservicesApi DevelopmentCloud ComputingDistributed SystemsLarge Language Models (llm)Web Applications

Other Skills

API TestingAmazon Web Services (AWS)AutomationBack-End Web DevelopmentCascading Style Sheets (CSS)Community ManagementData PipelinesDesign PatternsDevOpsDiscordDiscord APIEvent ManagementEvent PlanningFigma (Software)Front-End Development

About

I enjoy solving challenging problems. I am curious and adventurous by nature, and I love to connect with people who are interested in technology, business, finance and content.

Experience

3 yrs 3 mos

Total Experience

8 mos

Average Tenure

7 mos

Current Experience

Wing assistant

Software Engineer

Oct 2025 – Present · 7 mos · California, United States · Remote

Cautio

Software Developer I

Jun 2024 – Sep 2025 · 1 yr 3 mos · Bengaluru, Karnataka, India · Hybrid

Joined Cautio as the first backend eng, did everything that was required i.e. from handling infra (AWS) and coding frontend (Next.js), making automations (using LLMs) to writing backend and designing systems (video streaming, complex service-to-IoT-device communications)
Some of my contributions are:
Designed the core schema of the Cautio OS and built the core API microservice, which was exposed via API Gateway behind private ALBs from scratch, that caters to 45+ clients all over India.
Top contributor of the backend repositories, also contributed to the frontend side of the Cautio OS built in NextJS.
Designed and built 5+ systems that deliver various types of data, analytics, and media via low-latency APIs.
Worked on several microservices that deal with processing binaries from IoT devices and sub-200ms video streaming using FFmpeg, MPEG-TS, and WebSockets.
Deployed distributed systems on AWS ECS using Service Connect, VPC, and private ALBs, achieving 40% lower service latency and improved security.
Re-architected cloud infrastructure, reducing AWS costs by 40%.
Created a custom load testing tool simulating 10k concurrent IoT devices for benchmarking.
Automated repetitive OPs team tasks using Jenkins, custom CLI, and cron jobs.
Helped many B2B clients to integrate Cautio APIs with their custom software solutions.
Tech stack: nodejs, typescript, kafka, AWS, Jenkins, Postgresql, MongoDB

nodejstypescriptkafkaAWSJenkinsPostgresql+2

Gizmolab

Full Stack Developer

Jan 2024 – Apr 2024 · 3 mos · Dubai, United Arab Emirates · Remote

Crafted responsive UIs for web3 startups in modern frameworks like NextJS and Typescript.

Google developer students' club hit

Full Stack Lead

Aug 2023 – Aug 2024 · 1 yr · Kolkata, West Bengal, India · On-site

Organised a bunch of events.
Led the development of the ChemChon 2023 event management portal.

Cunard consulting

2 roles

AI Developer

Promoted

Jul 2023 – Dec 2023 · 5 mos · United Kingdom · Remote

Developed semantic search APIs using Langchain, OpenAI, and Pinecone to enhance document retrieval for financial institutions like HSBC.
Implemented an RAG-based API certification system, achieving 99.9% validation accuracy.

TypeScriptPython (Programming Language)Design PatternsNextjsOpenaiLarge Language Models (LLM)+4