Resume

Joel Peter Sony

Software Engineer · SDE · Product Builder

Fintech engineering

Asyncauto / Cashflowy

Built fintech product surfaces across Fetch, Purchase Orders, and Transactions with execution discipline, operational continuity, and recruiter-significant delivery quality.

Cross-functional shipping

Product execution

Turned ambiguous requirements into shippable, end-to-end flows across fintech systems, internal tools, and team-facing workflows.

Founder context

Startup builder

Led startup-stage execution through clear prioritization, rapid prototyping, and launch-oriented product decisions.

Experience

Software Engineer — Asyncauto / Cashflowy

Dec 2023 - Dec 2024

  • Worked across Cashflowy's Fetch, Purchase Orders, and Transactions products.
  • Built purchase-order flows, transaction views, finance screens, and wireframe-to-product surfaces.
  • Used MUI Joy heavily while shaping production UI states and fintech workflows.
  • Built Switchless, a 30+ React component library with Storybook documentation and Cypress coverage to standardize reusable UI work.

Founder & Software Engineer — Adrovel

Dec 2024 - Feb 2025, restarted Apr 2026 - Present

  • Founded Adrovel and led engineering for a Sweden-client appointment scheduling MVP from requirements to working prototype.
  • Contributed to Bitsit, InnerScript, Spider Rose, Graph, and Fable projects with a focus on shipping and execution.
  • Focused on building a founder community of builders while moving early-stage ideas toward practical product outputs.

Skills

JavaScript
Python
Product thinking
UI/UX
HTML
CSS
React
Next.js
TypeScript
Technical writing
DSA
shadcn/ui
Tailwind
SQL
Git
GitHub
Node.js
REST APIs
HTTP
Cypress
Storybook
MUI Joy
Postgres
Docker
RAG
AI engineering
AI/ML
Supabase
Railway
Azure

Other

LeetCode

Python DSA

350+ LeetCode problems in Python, focused on DSA patterns, edge cases, and interview explanation.

View LeetCode profile

Machine Learning Specialization

Coursera / DeepLearning.AI

Credentialed through Andrew Ng's specialization in ML foundations: supervised, unsupervised, regression, classification, and neural networks.

Verify certificate