A. Mainali

Est. 2019 — Kathmandu

Full Stack
Engineer

Translating complex business logic into elegant, scalable code. No fluff. Just pure, engineering.

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20+ Upwork Projects
100% 5-Star Rating

Upwork Reviews

Verify Profile ↗
"Ayush was responsive and did the job quickly and well - he's a pleasure to work with."
— Chris, 2026
Independent Freelancer • 100% Client Satisfaction • Active Problem Solver • AWS Solutions Architect • Full Stack Engineer • Independent Freelancer • 100% Client Satisfaction • Active Problem Solver • AWS Solutions Architect • Full Stack Engineer • Independent Freelancer • 100% Client Satisfaction • Active Problem Solver • AWS Solutions Architect • Full Stack Engineer • Independent Freelancer • 100% Client Satisfaction • Active Problem Solver • AWS Solutions Architect • Full Stack Engineer •

Selected Case Studies

01 / Fullstack E-Commerce

Quick Ship Today

Automated return scheduling system using Next.js and Firebase, saving customer time by ~45 minutes. Integrated Sanity CMS with 20+ reusable content blocks and developed a centralized admin dashboard.

Next.js Firebase Sanity CMS tRPC Square
View Case Study
02 / Web Performance & SEO

Miami Motorcycles Rental

Implemented comprehensive technical SEO and performance optimization, boosting initial loading speed from around 20 to a verified 90+ Lighthouse score.

Next.js Technical SEO Performance Lighthouse
View Case Study
03 / Marketing & Events

Atelico

Built the company website and the Bobium Brawlers Event frontend. Integrated Decap CMS, Mailchimp for automated newsletters, and privacy-first Plausible Analytics.

Astro.js Decap CMS Mailchimp Plausible
View Case Study

Career
History

A chronological record of professional engagements, leadership roles, and technical milestones.

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Independent Freelancer (Upwork)

2019 — PRESENT

Full Stack Engineer

Delivered 20+ full-stack projects on Upwork with a 100% 5-star client rating. Built custom dashboard interfaces, high-performance static and dynamic sites, database schemas, and external payment/CMS integrations.

Cal.com

2023

Open Source Contributor

Featured in the official Hall of Contributors in 2023 for shipping key features and resolving core scheduling logic in the main application codebase.

Technical
Skills

A breakdown of architectural expertise across the modern application stack, from performant user interfaces to serverless cloud networks.

Active Problem Solver →

01 / Frontend Architecture

Core Stack:

TypeScript, React, Next.js, Astro.js

State & Performance:

TanStack Query, Responsive UI Design, Client-side Caching

02 / Backend & API Design

Core Stack:

Node.js, Express.js, Hono

API Architecture:

RESTful APIs, tRPC (Type-Safe APIs), Webhook Systems

03 / Database & Storage

Relational & NoSQL:

PostgreSQL, DynamoDB

Data Access:

Drizzle ORM (Type-safe schema modeling)

04 / Cloud & Systems

AWS Solutions Architect – Associate

Compute: AWS Lambda, API Gateway, Cloud Functions, EC2
Event-Driven: SQS, SNS, EventBridge
Storage & Networking: S3, CloudFront (CDN), VPC Networking
Observability & IAM: Cognito, IAM Policies, CloudWatch

Certifications

AWS Certified Solutions Architect – Associate (AWS SAA) ↗

Amazon Web Services • Issued: June 05, 2026 — Expires: June 05, 2029

Legacy Responsive Web Design V8 Certification ↗

freeCodeCamp • Issued: Jan 27, 2020

JavaScript Algorithms and Data Structures V7 Certification ↗

freeCodeCamp • Issued: April 4, 2020

Front-End Development Libraries V8 Certification ↗

freeCodeCamp • Issued: June 8, 2020

Education

Bachelors in Computer Science and IT (B.Sc. CSIT)

Amrit Science Campus — Graduated

Literature & Books

Design Patterns: Elements of Reusable Object-Oriented Software

by Erich Gamma, Richard Helm, Ralph Johnson, John Vlissides (GoF)

Completed Reading

Designing Data-Intensive Applications (Vol. 1)

by Martin Kleppmann

Around 60% Completed