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david@nyc:~/portfolio$

David Iosilevich

New York, NY

Fullstack engineer at Bruin. I care about system design, building things that hold up, and leaving codebases better than I found them.

roleSenior Software Engineer
sinceJune 2022
stackTS | React | .NET | SQL
basedNew York, NY
resume
david@nyc:~/portfolio/about$

I'm a fullstack engineer at Bruin, working across API and database design, search infrastructure, third-party integrations, and the UI layer on top. I focus on building reliable systems and writing code the next engineer can actually maintain.

david@nyc:~/portfolio/work$
01

Operations admin platform

Built and scaled the flagship admin platform for telecom field ops - gave coordinators and execs real-time visibility into workflows and project pipelines.

→ Cut a 20–25% order incompletion rate caused by previously undetected gaps
Fullstack
TypeScriptNext.jsTailwindSQL
02

Field technician PWA

Designed and built a PWA for field techs and admins. Task management, survey creation, data collection that works when the WiFi doesn't.

→ Cut a chunk of the manual dispatch coordination techs and admins used to handle by hand
Fullstack
TypeScriptNext.jsTailwindElixirSQL
03

Network telemetry dashboards

Dashboards on top of Solr collections that show what's actually happening across a client's network of devices.

→ Clients and internal users diagnose device issues directly without going through support
Fullstack
React.NETApache SolrSQL
04

HR integration layer

Integrated third-party HR platforms using Kafka and webhook-driven events. Onboarding and offboarding propagate automatically instead of through tickets.

→ Eliminated manual user provisioning and offboarding
Backend / Integrations
.NETSQLKafka
05

Platform modernization

Rebuilt the parts of the flagship platform that had aged out - upgraded package versions, swapped the legacy build for Vite, replaced the test setup, and rebuilt CI/CD on GitHub Actions.

→ Modern dependency stack and faster deploys
Frontend + DevOps
TypeScriptReactVite.NETGitHub Actions
david@nyc:~/portfolio/experience$
HEAD
Senior Software Engineer
Bruin Group LLC · Jun 2022 - Present

Web apps and services for telecom clients and internal teams.

  • Built and scaled the operations admin platform for telecom field operations - gave coordinators and execs real-time visibility into workflows and project pipelines, directly cutting a 20–25% order incompletion rate caused by previously undetected gaps.
  • Shipped a companion PWA for field techs covering surveys, dispatch logging, and task management, wired tightly into internal service delivery workflows.
  • Led modernization of the flagship platform - refactored legacy code, swapped out test and build tooling, and rebuilt CI/CD on GitHub Actions. Deploys are faster and a lot less scary now.
  • Integrated third-party HR platforms using Kafka and webhook-driven events, enabling automated user provisioning and lifecycle management.
  • Built network telemetry dashboards on top of Solr that let clients and internal users find and fix device issues without three rounds of back-and-forth.
  • Build and maintain enterprise web apps in TypeScript, React, Tailwind, and .NET microservices; design the REST APIs, SQL stored procedures, and Solr collections behind them.
  • Push for system design, unit/integration testing, and clear documentation as defaults - and review a lot of PRs to keep the bar there.
  • Mentor and onboard newer engineers; run technical assessments and interviews as part of hiring.
TypeScriptReactTailwind.NETC#SQLApache SolrKafkaKubernetesGitHub Actions
~1
Operating Systems Grader
New York University · Sep 2020 - May 2022

Graded Unix labs for the OS course.

  • Graded Unix-based labs and assignments for the OS course.
  • Wrote grading scripts and left feedback that actually got read.
UnixBashC
david@nyc:~/portfolio/skills$ 
├── frontend/
│ ├── TypeScript
│ ├── React
│ ├── Next.js
│ ├── Tailwind CSS
│ ├── Vite
│ ├── HTML
│ └── CSS
├── backend/
│ ├── C#
│ ├── .NET
│ ├── SQL
│ ├── Python
│ ├── Apache Solr
│ └── Elixir
└── tooling/
  ├── GitHub Actions
  ├── Kubernetes
  ├── ArgoCD
  ├── Storybook
  └── Mermaid
david@nyc:~/portfolio/education$

New York University

B.A. in Mathematics & Computer Science (Joint)
Sep 2018 - May 2022 · GPA 3.56 / 4.0
david@nyc:~/portfolio/contact$
linkedin
davidiosilevich
resume
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david@nyc:~/portfolio$