Calculosoft
We build scalable web and mobile software — and back your team with virtual assistance for video editing, social media, posting, and the operational work that keeps a business moving.
Purpose-built platforms and internal tools shaped around how you actually work.
Modern product experiences — responsive web, PWAs, and mobile-ready delivery.
Reliable remote support for content, social media, video, admin tasks, and day-to-day operations.
Beyond launch — maintainable systems plus ongoing VA support as you grow.
Services
From product engineering to day-to-day VA work — video editing, social media, posting, and operational support that helps businesses grow.
Selected work
Products we have designed, built and run in production: personal finance, Quran learning, server operations, trading research, fleet monitoring and social publishing.
A personal finance platform that tracks net worth, accounts, transactions, budgets, recurring payments, loans and the people you lend to or borrow from, with monthly reports and spending by category. It ships as a web app, an iOS/Android app and a modular Spring Boot backend that does money arithmetic exactly, to the last unit.
A Quran learning platform: the complete Uthmani text, four authentic Mushaf editions rendered page by page with realistic page turns, Kanzul Iman translations in English, Urdu and Roman Urdu, Khazain-ul-Irfan tafsir, Arabic search that ignores diacritics, and recitations from six reciters with ayah-by-ayah highlighting.
A one-container operations dashboard for running a production server: live CPU, memory and disk gauges, container health and one-click restarts, live log tailing with automatic error capture, version management, a config editor, a database workbench for MySQL and PostgreSQL, uptime monitors and disk cleanup, all in one place.
A private trading research workstation for gold (XAU/USD). It has a deterministic signal engine that explains every decision, a risk engine, a trade journal, reproducible backtests, walk-forward validation and candle-by-candle replay, inside a trading-terminal interface with three themes.
A multi-server monitoring system: lightweight agents on each machine report to a central server, and a live dashboard shows the health, CPU, memory, disk and containers of the whole fleet. It has role-based access for superadmins, admins, operators and viewers, approvals and an audit log.
A scheduling tool that writes a post once and publishes it automatically to Facebook, Instagram, LinkedIn (profile and company page) and X at the chosen time. It has per-platform previews, reusable hashtags, a publishing history and encrypted storage of platform credentials.
Expertise
Engineering and creative ops under one roof — backends, APIs, web and mobile, plus video, social, and posting so the product and the content both ship.
01
Reliable services, data models, and business logic that stay maintainable.
02
Connect products, partners, and internal tools without fragile glue.
03
Interfaces people can actually use — clear, fast, and consistent.
04
Clean cuts, pacing, captions, and delivery-ready edits for ads, reels, and long-form.
05
Profiles, calendars, community replies, and consistent brand presence across channels.
06
Scheduled posts, asset prep, hashtags, and reporting so your content actually ships.
Clarify goals, constraints, and what you need — software build, VA support, or both.
Shape the plan: product scope, content cadence, tools, and ownership.
Engineer software and execute VA workflows with clear quality bars and communication.
Ship, measure, support, and iterate — so the work keeps matching the business.
About Calculosoft
We build software teams can run and trust — and we provide virtual assistance for video, social media, posting, and admin work so founders and operators stay focused on growth.
Insights
Engineering notes and product thinking from the Calculosoft team.
Our deploys used to depend on images built on the server and tagged latest. We moved every app to versioned images in a private registry, with one file that pins what runs. Here is the pipeline order that makes it safe, and a release-tag bug we hit along the way.
Social Poster writes a post once and publishes it to Facebook, Instagram, LinkedIn and X at a scheduled time. The hard part is not the APIs. It is what happens when two networks succeed and one fails. Here is the design that handles it.
Argus streams server health over WebSockets into a React dashboard with gauges and charts. Three small bugs taught us the most: a LIVE badge that went stale while data was flowing, a chart that threw thousands of errors per second, and a gauge that rendered at zero width.
In a backtest, ticks arrive once, in order. A live feed sends them late, twice, or with conflicting prices at the same timestamp, and sometimes stops altogether. Here is how our demo trading bot guards its strategy from all of that.
An audit of our trading research platform found two quiet bugs. One labelled a consistently losing strategy as robust; the other filled stop-losses at prices that never traded. Here is how each one happened and the one-line rules that fixed them.
Adding PostgreSQL to our ops dashboard's database workbench meant building a small pg_dump of our own. The first version produced SQL that looked right and failed on replay. These are the five ways it broke and how we fixed each one.
Our Quran app shows each Mushaf page exactly as it is printed, line for line. That takes one font per page, careful line-fitting math and a font cache that never deletes the page you are reading. Here is how it works in React Native.
The Uthmani text of the Quran is fully vowelled, but people search by typing plain Arabic. Here is how our Quran app matches the two in PostgreSQL, why full-text search was the wrong tool, and the invisible character that broke our CI.
A personal finance app is only trustworthy if every total adds up to the last unit. These are the decisions we made for Expensio's money core, including the bug where a tiny loan rounded to zero and turned into a 500 error.
Our first CI build of a Next.js + Payload CMS site swap-thrashed the same server that runs production. Here is what actually happened, why it was not a clean out-of-memory kill, and the four changes that made the build safe.
Contact
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