Senior Backend Engineer - Go, Node.js/TypeScript, PHP/Laravel

- Owned both the backend and the React/TypeScript ops dashboard for a multi-strategy algorithmic trading system; applied an AI-native (Claude Code) development methodology to build and operate a complex trading system as a single engineer.
- Built a real-time operations dashboard (Go/fasthttp backend, React/TypeScript frontend) showing live uPnL, positions, and order history via a WebSocket hub, plus a 1-minute snapshot worker reconciling exchange REST data into a NAV/PnL pipeline; infra metrics via VictoriaMetrics + Grafana (15+ custom metrics).
- Developed a multi-strategy OMS execution engine in Go handling 100+ concurrent trading signals - queueing/throttling/retry against exchange rate limits, FSM-based execution from signal to fill, and safeguards against duplicate/rapid-fire signals; achieved P99 200ms order processing even against exchanges without WebSocket support.
- Designed an AI-native development workflow for long-running complex systems: layered context documents, Claude Code hooks enforcing project rules, an AI code-review loop, and MCP/Skills-based code search to keep AI output consistent with agreed specs.

- Sole owner of infrastructure and internal systems (4-5 systems: CRM, web, app, internal tools) used by roughly 30-50 people across 4 departments.
- Led parallel new-CRM development and legacy-CRM maintenance - prioritized via stakeholder interviews and ran the full cycle from planning through deployment and support.
- Full-stack development of new internal web services end to end (requirements, UI/UX, frontend/backend, deployment, operations).
- Owned company-wide infrastructure and data governance - servers, network, accounts, security, backups; unified previously siloed departmental data.
- Managed and maintained the company's mobile app.

- Independently won, developed, and delivered freelance projects (Laravel/React) across 4 new builds and 2 maintenance contracts over about 10 months, owning the full lifecycle - client meetings, quoting, scheduling, development, QA, deployment, and operations - across multiple concurrent clients.
- Completed a 2-month short-term frontend placement at an SI firm, ramping up quickly on an existing codebase, domain, and team culture to deliver results immediately.

- Joined as dev-team lead transitioning the org from SI-agency work to an in-house team, and reorganized how the team worked - process, tech stack, and hiring.
- Led the migration from legacy HTML/jQuery to React, defining component architecture, state-management patterns, and build-environment standards; onboarded the team onto React as the new default stack.
- Owned junior-developer hiring, onboarding, and incubation - from interviews to real project deployment, via code review and pair programming.
- Introduced Slack/Notion and defined collaboration processes - channel structure, notification rules, doc templates, and workspace structure for async communication.
- Backend development of B2B/B2C SaaS APIs (Laravel) - RESTful APIs, DB schema, auth/permissions, and external integrations.

- Dev-background PM overseeing multiple web/app projects as the communication hub between planning, design, and development.
- Managed cross-department communication and project delivery - requirements gathering, scheduling, issue tracking, and translating between technical constraints and business requirements (including with the design team).
- Managed iOS app releases and native integrations - APNs push, StoreKit auto-renewing subscriptions (IAP) with receipt validation and restore, and App Store review compliance, while keeping the existing payment structure intact through review.

- Sole designer/developer of AutoCAD workflow-automation programs and libraries at a surveying/engineering firm.
- Built and patented a 3D-LiDAR-based transmission-line sag-detection library - isolating candidate wires from large-scale 3D point clouds and auto-computing sag curves via curve fitting; adopted into the company's standard workflow and recognized for technical originality (registered patent).
- Developed a unified AutoLISP library-management program (platform-level design).