Aisen Sivtsev — Software developer

Tools I build with.

My working stack, with the tools I’m learning listed separately.

Mobile & Frontend

.NET MAUI
SwiftUI (personal project)
Blazor
XAML
Razor
MudBlazor

Backend & Cloud

C#
ASP.NET Core
REST APIs
Azure

Data & Workflow

SQL
CI/CD
Git
Python

Currently learning: Go (Golang) and React Native.

Where I’m headed

I’m adaptable and learn quickly by doing. I welcome unfamiliar tools and different projects, as long as I can contribute, keep learning, and build something useful.

A few things I’ve worked on.

ettavi.

Personal project · iOS · Working prototype

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A calmer way to keep track of money.

A native iPhone finance app for spending, budgets, savings goals, and net worth. I built the SwiftUI interface and a separate finance core, with Supabase for authentication and a PostgreSQL ledger.

Swift 6
SwiftUI
Swift Charts
Supabase
PostgreSQL

Exact money calculations using integer cents.
Atomic transfers, transaction corrections, and savings contributions.
Per-user data access with PostgreSQL row-level security.
Face ID unlock on supported iPhones, with sessions stored in Keychain.

Why ettavi.

Designed around a quick daily check-in, with spending, budgets, goals, and net worth together. Manual tracking needs no bank connection, while balance masking and hidden charts give you control over what’s visible.

ettavi. — Daily overview with net worth, income, spending, and a transaction review. — Today

ettavi. — Searchable transactions with spending filters and dates. — Activity

ettavi. — Savings goals with progress and monthly budget totals. — Savings goals

ettavi. — Net worth chart with recorded balance history. — Wealth

iPhone simulator · Fictional sample data

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Light theme

ettavi. — Category budgets with spending progress. — Monthly budgets

ettavi. — Monthly grid of recorded net worth values. — Year at a glance

ettavi. — Spending totals grouped by category. — Spending insights

ettavi. — Six months of income and spending comparisons. — Cash flow

ettavi. — Recorded financial changes for a selected month. — Monthly breakdown

ettavi. — Sample investment holdings and investment cash. — Investments

ettavi. — Guided transaction and category review. — Money Moment

ettavi. — Savings target, progress, and contribution form. — Goal details

ettavi. — Native form for manually recording a transaction. — Add a transaction

ettavi. — Light and dark themes and app icon options. — Appearance

ettavi. — Introduction to the Ettavi finance app. — Welcome

ettavi. — Native email and password sign-in form. — Sign in

Dark theme

Professional experience.

Visit GitHub

Software Developer

G&A ROBOT · Burnaby, BC

Jun 2026 — Present
Full-time contract

App users: 2,000+
Avg. daily downloads: ~323% ↑
App Store impressions: ~224% ↑
Conversion rate: 28.7% → 36.1%

Download, impression, and conversion changes following the v1.4.5 rollout.

Led a full upgrade of a customer-facing .NET MAUI app. I build mobile apps, admin tools, and APIs, and manage releases across a platform with 200+ connected machines.

Good things start
with a conversation.

Have a project in mind, an opportunity to share,
or just something interesting to say? I’d love to hear it.

aisensivtsev@yahoo.com

GitHub LinkedIn Instagram Résumé

Hi, I’m Aisen.I build software.