Ranchi, India Open to SDE roles

Sourav Singh

I build low-latency systems, multi-agent AI, and full-stack products.

Software engineer working across the stack — from sub-millisecond C++ trading gateways and TLS/ACME certificate infrastructure to MCP multi-agent orchestration and production React. I care about correctness, latency, and code that ships.

Sourav SinghSS// add public/profile.jpg
systems online0.5ms
509
tests written
98.7%
peak coverage
750+
trading pairs
01 — About

Engineer across three worlds.

I like problems where correctness and latency both matter — and I've built for all three sides of the stack.

Most recently I shipped production code at UKG on a multi-tenant recruiting SaaS, before that I engineered a C++ crypto-exchange gateway at Go Quant handling 750+ trading pairs at 0.5 ms per message. Alongside internships I build systems from specs — a TLS/ACME certificate service straight from RFC 8555, and a multi-agent MCP orchestrator with 391 tests.

I'm finishing my IMSc in Mathematics & Computing at BIT Mesra and I'm looking for roles where I can go deep on infrastructure, AI systems, or product engineering.

Systems & Backend

Low-latency, protocol-level engineering — C++ WebSocket gateways, order-management systems, TLS/ACME, and high-throughput data codecs.

C++SIMDJSONFastAPIWebSocketsX.509

AI & ML

Multi-agent orchestration over MCP, RAG & LangChain pipelines, and applied deep learning — from LSTM fleet optimization to task-DAG planners.

MCPMulti-AgentRAGLangChainPyTorch

Full-Stack

Production React & TypeScript front-ends, Node & ASP.NET services, Postgres/Mongo data layers — with accessibility and testing built in.

ReactTypeScriptNode.jsPostgreSQLDocker
02 — Experience

Where I've built.

Four internships across enterprise SaaS, high-frequency trading, and industrial AI.

Jan 2026 — Jul 2026Pune · Onsite

Software Development Engineer Intern

UKG · Ultimate Kronos Group
  • Resolved 6+ production defects across UKG Pro Recruiting's multi-tenant SaaS — offer-letter PDF rendering, duplicate-offer prevention, search re-indexing, iText8 workflows and MongoDB aggregates.
  • Shipped 14+ merged PRs to production, engineered 80+ end-to-end UI tests in C#/NUnit, and migrated legacy Knockout.js templates to React while improving WCAG/ARIA accessibility.
ReactC#/NUnitMongoDBiText8ASP.NET
May 2025 — Jul 2025Remote

Backend Developer Intern

Go Quant
  • Designed a cryptocurrency exchange gateway integrating Bitget via C++ WebSocket APIs — real-time market-data streaming and order execution across 750+ trading pairs for institutional clients.
  • Optimized low-latency infrastructure with SIMDJSON market-data codecs and an order-management system, hitting 0.5 ms per-message processing latency while cutting parsing overhead.
C++WebSocketsSIMDJSONOMSBitget API
Jun 2024 — Jul 2024Jamshedpur · Onsite

AI-ML Intern

Tata Motors
  • Developed an LSTM-based fleet-optimization engine delivering 16% efficiency gains and 12% cost reduction under carbon-emission compliance constraints.
  • Integrated vehicle, fuel and cost datasets with a 2-person team, improving decision-making accuracy by 15% and aligning outputs with supply-chain requirements.
LSTMPyTorchTime-SeriesPython
May 2023 — Jul 2023Jamshedpur · Onsite

Data Analyst Intern

Tata Steel
  • Built a Python ETL pipeline with pandas & SQL to ingest, clean and engineer blast-furnace sensor data — improving consistency and enabling 3× faster analytics.
  • Implemented predictive-maintenance models (Random Forest, Logistic Regression) reaching 87% accuracy in failure detection to support furnace decisions.
pandasSQLscikit-learnETL
03 — Projects

Things I've built from the spec up.

Systems built for correctness — implemented straight from RFCs and protocols, with real test coverage.

◆ Featured · Aug 2026

Custodian

A TLS certificate lifecycle service implementing ACME (RFC 8555) from the specification — issuing real certificates through JWS-signed requests and HTTP-01 domain validation against Let's Encrypt's Pebble CA.

A two-pass TLS probe reads expired and self-signed certificates, verifies handshake rejects, and feeds a deterministic X.509 risk engine that scores expiry urgency and hygiene independently.

RFC 8555118 tests84% coverage
# issue a cert straight from the RFC
order = acme.new_order("api.example.dev")
chal = order.http01() # JWS-signed
cert = order.finalize(csr)
# → risk engine
risk = score(cert) # expiry + hygiene
2-pass
TLS probe
deterministic
risk scoring
◆ Featured · May 2025

MCP-X

A multi-agent orchestrator that compiles natural-language goals into a Zod-validated task DAG, dispatching topological waves concurrently to capability-scoped MCP specialists with runtime-enforced tool ownership.

Bounded replanning runs over an append-only event log with derived state, so JSONL replay reuses the live execution path — scored across 15 golden scenarios.

391 tests98.7% coverage15 golden scenarios
# goal → DAG → concurrent waves
dag = plan("analyze repo & open PR")
for wave in dag.topo():
dispatch(wave) # scoped MCP tools
# replan from append-only log
replay(events.jsonl)
Zod DAG
typed plans
event-sourced
replay engine
◆ Featured · Sep 2026

AcquisitionIQ

An explainable acquisition-fit layer for SaaSquatch Leads — scores a company 0–100 as a search-fund acquisition target, not a sales lead, across six weighted factors: succession pressure, buy-box fit, digital-modernization upside, niche fragmentation, contactability, and liveness.

Every score shows its work — subscore, weight, evidence sentence, and source link per factor — plus a thesis-coverage figure so a 78 backed by 40% of evidence reads differently from one backed by 95%. The engine is deterministic with no LLM in the scoring path, and a fixture keeps the Python and TypeScript implementations provably in agreement.

236 backend tests57 frontend tests6 weighted factors
# score a target, evidence attached
fit = score(company)
for f in fit.factors:
f.subscore, f.evidence, f.source
# same input, same score — always
coverage = fit.thesis_coverage
deterministic
no LLM in scoring
2 languages
fixture-pinned parity
◆ Featured · Aug 2026

Buildfolio

Turns a resume into a published developer portfolio in one click — a guided wizard walks through 12 templates and publishes a public page at /p/<username>, backed by Next.js 16 and Supabase.

Sign-in is fully passwordless — magic links via Supabase OTP, with both PKCE and default email-template link formats handled and failures routed to a visible error state instead of a silent bounce. An npm run doctor script catches a bad env, a deleted Supabase project, or a missing schema before it reaches a user.

12 templatesNext.js 16 app routerpasswordless auth
# resume in, published portfolio out
draft = wizard.fromResume(pdf)
page = publish(draft, template)
# passwordless — no password to leak
await signInWithOtp({ email })
12
portfolio templates
/p/<user>
public page per user
◆ Featured · Jul 2024

Wardrobe Wizard

An AI-powered wardrobe assistant — upload or drag-and-drop clothes into a virtual closet, pick a style, and GPT-4o generates ranked outfit combinations with a score and a short rationale for each.

React and SASS on the front end, a Node/Express API in between, and IndexedDB persisting images and outfit history entirely client-side — no server-side storage of anyone's wardrobe.

GPT-4o advisorIndexedDB storageExpress API
# closet in, ranked outfits out
closet = upload(images)
looks = advisor.recommend(closet, style)
# GPT-4o scores + explains each look
for look in looks: look.score, look.why
client-side
closet storage
ranked
outfit recommendations
04 — Skills

The toolbox.

Languages

C++PythonJavaJavaScriptTypeScriptSQL

Frameworks & Libraries

React.jsNode.jsFastAPIASP.NET CoreZodVitestNUnit

AI / ML

MCPMulti-Agent OrchestrationRAGLangChainNLPDeep LearningHugging FaceKaggle

Infra, Cloud & Tools

DockerKubernetesAWS EC2GCPPostgreSQLMongoDBGitHub ActionsSplunkClaude Code

// Education

Integrated M.Sc — Mathematics & Computing
Birla Institute of Technology, Mesra
Dec 2021 — Jun 2026 · CGPA 7.8 · Ranchi
DSAOperating SystemsDBMSComputer NetworkingDesign PatternsOOP

// Achievements

  • Ranked Top 50 at Unstop Talent Park for engineering a personalized job-recommendation platform.
  • Completed the Machine Learning Specialization training at Tata Steel.
  • Certified in Enterprise Claude Code (ukg-ai-coach) & holder of the Claude 101 badge.
05 — Contact

Let's build something.

I'm open to SDE and AI-systems roles, and always happy to talk about low-latency systems, agents, or anything technical. My inbox is open.

Say hello →