SOFTWARE ENGINEER

Hi, I'm

VamsiMaram.

A software engineer building reliable backend services, distributed systems, and full-stack products — most interested in what happens when systems get loud.

or press
Software EngineerAvailable for engineering work
The catalogue

Engineering case studies,
browse like films.

Each project is a full case study — the problem, the architecture, and the decisions that made it hold. Shipped work and system-design concepts, clearly marked.

Featured

Payment Settlement Engine

A settlement layer built so that failure is expected, not exceptional — every step can retry without the customer ever paying twice.

Backend Engineer·Idempotency · Data Consistency · Fault Tolerance
Open case studybackenddistributed

Browse the catalogue

Recently shipped

Real work
1

Rate Limiting Service

One gate in front of everything

Backend Engineer·Low Latency · Traffic Shaping · Distributed Coordination
ProblemA handful of abusive callers can saturate a service and degrade it for everyone behind it.
SolutionDesigned an edge sliding-window rate limiter to absorb burst traffic and protect downstream services from degradation.
ImpactAbusive traffic is turned away at the perimeter before it ever costs a real service capacity.
2

Job Scheduler

Background work that actually finishes

Backend Engineer·Fault Tolerance · Exactly-Once · Durable State
ProblemWhen a worker dies mid-task, naive queues drop the job silently — nobody notices until a customer does.
SolutionBuilt a distributed scheduler with leased execution, retry backoff, and dead-letter capture for work that can't complete.
ImpactA mid-job crash becomes a recoverable delay, never silent data loss.
3

LLM Gateway Service

AI treated like any other dependency

Backend Engineer·Resilience · Low Latency · Graceful Degradation
ProblemWhen a model provider slows or rate-limits, a naive integration drags the whole product down with it.
SolutionFronted model calls with a gateway that budgets, caches, streams, and fails over behind one stable interface.
ImpactThe product keeps answering within budget even when the model is having its worst day.

Concepts & explorations

System design

How I'd approach classic problems — designs and explorations, not shipped products. Marked as concepts so nothing here pretends to be more than it is.

Concept

Distributed Notification Platform

One event, many channels, exactly once

System design·Event-Driven · Fan-Out · Idempotency
ProblemOne domain event must reach many channels exactly once, even as individual channels fail independently.
SolutionDesigned event-driven fan-out delivery with per-user deduplication, fully decoupled from the producing service.
ImpactA retry re-delivers safely, and a single channel outage never blocks the rest.
Concept

RAG Knowledge Search

Answers grounded in your own documents

System design·Semantic Retrieval · Grounding · Relevance
ProblemAn LLM answering from its own memory invents facts about your docs.
SolutionRetrieve the relevant passages first, then let the model answer only from them.
ImpactAnswers stay grounded in real sources, with citations back to the passage.
Concept

Feature Flag Service

Ship dark, roll out slow, kill fast

System design·Feature Gating · Low Latency · Live Config
ProblemA risky feature needs a kill switch that works in seconds, not a redeploy.
SolutionCentral rules evaluated at the edge, cached, and pushed to SDKs live.
ImpactRoll out to 1% then 100% — or turn it off instantly — without shipping code.
Concept

Real-time Analytics Pipeline

From raw events to live dashboards

System design·Event-Driven · Stream Processing · Real-Time
ProblemDashboards need fresh numbers, but re-querying raw events every time is too slow.
SolutionAggregate events in a streaming layer and serve pre-rolled metrics.
ImpactDashboards read pre-aggregated rollups instead of scanning raw history.
Concept

API Gateway Platform

One front door for many services

System design·Routing · Auth · Limits
ProblemEvery service re-implementing auth, limits, and logging is duplicated risk.
SolutionA gateway that owns cross-cutting concerns once, in front of everything.
ImpactServices focus on their domain; the edge handles the shared machinery.
Concept

Log Aggregation & Search

Find the one line that explains the outage

System design·Ship · Index · Query
ProblemLogs scattered across a hundred machines are useless during an incident.
SolutionShip every log to one place, index it, and make it searchable in seconds.
ImpactDuring an outage, the answer is one query away instead of a hundred SSH sessions.
Experience

Three seasons of building things that had to stay up.

Own the architecture and performance of a high-traffic product platform. The work splits across two fronts: driving latency down so the platform stays responsive under real load, and building the internal leverage — a modular platform foundation, an experimentation capability, and automated delivery — that lets the product evolve quickly without regressing.

01
Problem

Too much work sat on the critical path, and every new capability slowed the delivery lifecycle as complexity compounded.

Solution

Re-architected the platform around a modular, composable foundation that cut latency and shortened the feedback loop for every change that followed.

02
Problem

Changes were shipping without a dependable way to measure their real-world effect on users.

Solution

Built an experimentation capability so changes are validated against real usage before they ship — reducing drop-off and turning releases into measured bets, not guesses.

Education

The theory underneath the systems.

George Mason University

M.S., Computer Science

Fairfax, VA

Jan 2024Dec 2025
Completed
Coursework
Distributed SystemsSystem DesignDatabasesOperating SystemsSoftware EngineeringAlgorithmsData Structures
The Lab

Experiments you can actually run.

Small, honest demos of the patterns behind the work — a token-bucket limiter, exponential backoff, a cache — running right here in your browser. Plus the deeper case studies they come from.

About

I build for the day it breaks — not the day it demos.

Most software works on the happy path. I spend my time on the other one — the 3 a.m. spike, the retry storm, the dependency having a bad day. The systems I'm proud of aren't the ones that never fail; they're the ones that fail in ways you can see, contain, and recover from.

That turns into a way of working. I start from the failure and design backward, so the good day takes care of itself. I'd rather ship something simple and correct than clever and occasionally wrong. And I try to leave every system more legible than I found it — explicit states, honest names, a path you can actually trace — so the next engineer can move without fear.

How I work01 / 05
Principle 01

Design from the failure backward

Start at what breaks under load, then work back to the architecture. The happy path takes care of itself.

Let's build something that stays calm when traffic doesn't.

Vamsi MaramOpen to opportunities