Software Engineering Studio

Software engineering for teams that need reliable web systems.

QueryGraph Codelabs designs and builds B2B web applications, backend APIs, and data-driven platforms for businesses that need production-ready software without unnecessary complexity.

Frontend Engineering
Backend Systems
Data & Analytics
Services

Engineering Capabilities

Custom software development tailored to business requirements and scalable infrastructure.

Web Platforms

SSR web applications, marketing platforms, customer portals and interactive web experiences.

SvelteKit 5TypeScriptTailwind v4
Business Web Applications

Custom dashboards, internal tools, administrative platforms, and data-dense web application suites built for operational workflows.

AngularNG-ZORRORxJS
Backend Systems & APIs

Scalable REST microservices, token authentication pipelines, and structured backend architectures engineered for low latency.

Python / FlaskJava / SpringPostgreSQL
Technical Architecture & Discovery

System design, database modeling, API specification, and technical proof-of-concept development for new products and migrations.

System DesignSchema ModelingPoC Build
Quantitative & Data Systems

Data pipelines, analytical workflows, statistical models and reporting systems for data-intensive applications.

PythonPostgreSQLData Pipelines
Engagement Model

How We Deliver

A disciplined, milestone-driven execution framework engineered for cross-border transparency, continuous integration, and strict scope control.

Phase 01 — Technical Discovery Week 1

Architecture Audit & Requirements Mapping

We analyze existing technical assets, audit legacy codebases or database schemas, identify security constraints, and map out core user flows and business domain logic.

Deliverable: • Technical Requirements Document (TRD) • Risk Matrix
Phase 02 — System Blueprint Specification

Schema Design & API Contract Modeling

Prior to writing production code, we model relational database schemas, design typed REST/GraphQL API contracts, select framework primitives, and detail system boundary definitions.

Deliverable: • OpenAPI/Swagger Specs • Database ERD • Tech Stack Manifest
Phase 03 — Commercial Alignment Proposal

Statement of Work (SOW) & Milestone Pricing

We formulate a formal proposal establishing milestone schedules, IP transfer parameters, payment terms in USD, asynchronous status reporting cadences, and acceptance criteria.

Deliverable: • Executed MSA/SOW • Milestone Schedule • Payment Terms
Phase 04 — Iterative Execution Sprint Cycles

Test-Driven Build & Continuous Integration

Engineering proceeds through 2-week sprint cycles. Every feature is committed under strict TypeScript rules, covered by unit/integration tests, and deployed to staging environments for continuous client review.

Deliverable: • Staging Deployments • Weekly Async Logs • Test Coverage Reports
Phase 05 — Production Deployment Handover

Acceptance Verification & Source Transfer

Upon client sign-off against agreed acceptance criteria, we execute production migrations, transfer GitHub repository administrative controls, hand over environment secrets, and issue complete system documentation.

Deliverable: • Repository Transfer • Deployment Credentials • Admin & API Manuals
Phase 06 — Operations & Support Post-Launch

SLA Maintenance & Ongoing Optimization

Post-launch stability is guaranteed through a standard 30-day warranty period. Continued maintenance, infrastructure scaling, dependency upgrades, and operational monitoring are supported under monthly SLA retainer agreements.

Deliverable: • 30-Day Warranty • Optional SLA Retainer • Infrastructure Audits
Case Studies

Past Work

Full-Stack Business Application
SokoCommerce Platform
Problem

Requires a decoupled commerce engine with fast catalog exploration, user authentication, and inventory management.

Architecture

Angular SPA frontend paired with a modular Flask REST API backend, JWT authentication, and structured MySQL storage.

Outcome

Deployed production platform with modular frontend/backend architecture and documented deployment workflow

AngularNG-ZORROFlaskMySQL
Internal Web Architecture
QueryGraph Web Engine
Problem

Need for a reusable, type-safe web foundation powering studio client portals and high-speed SSR marketing interfaces.

Architecture

SvelteKit 5 SSR architecture with explicit state runes, Tailwind v4 styling, dynamic modal dialogs, and edge deployment.

Outcome

Lightweight foundation delivering fast initial page load, zero layout shift, and clean code maintainability.

SvelteKit 5TypeScriptTailwind v4
Architecture

Core Technologies

Technology is selected according to project requirements, existing infrastructure, performance constraints, and long-term maintainability

Frontend

  • SvelteKit
  • Angular
  • TypeScript
  • Tailwind CSS

Backend & APIs

  • Python (Flask)

Data & Persistence

  • MongoDB
  • MySQL

Infrastructure

  • Vercel
  • Git / GitHub
  • CI/CD
Studio Log

Engineering Journal

architecture

Migrating to SvelteKit 5 Runes & Vite 8

Eliminating legacy reactive declarations in favor of explicit $state, $derived, and $props runes for sub-50ms SSR rendering.

case-study

Designing Decoupled Brutalist Architectures

Structuring Angular enterprise dashboards alongside SvelteKit client portals with clean boundary isolation.

changelog

QueryGraph Core Intake Engine Release

Integrated global dialog intake workflows powered by Svelte 5 state runes and Tailwind v4 primitives.