Resume

Vincente Sequeira

Backend Systems

Linux Infrastructure

Embedded

Software engineer with production experience across backend services and the Linux infrastructure they run on. I run a freelance development business, co-founded a developer tool written in Rust and TypeScript, and administer the multi-tenant server my client work is deployed to.

Skills
Infrastructure & Operations
LinuxUbuntu ServerHestiaCPDNSFirewallsBackupsAWSAzureGoogle CloudVercel
Containers & Orchestration
DockerKubernetesTerraformJenkinsKafkaKeycloak
Languages
GoTypeScriptJavaScriptPythonC++C#JavaPHPSQLLuaLiquid
Backend
Node.jsExpressApollo GraphQLASP.NETConvexREST APIs
Data
PostgreSQLMongoDBMySQLSQLite
Embedded
ArduinoC for microcontrollersI2CSPIUART
Frontend
ReactNext.jsAngularTailwind CSSShopify
Tooling
GitGitHub ActionsNeovimBunTurborepoNix
Professional Experience

Orpheus|Backend Engineer, Co-founder|January 2026 – Present|Remote

Version control for digital audio workstation projects. Git handles these badly because DAW files are large binaries with no stable identity inside them, so a one note change looks like a whole file rewrite.

  • Own the Convex backend schema and the track mutations, including server side validation of everything written to the database.
  • Contributed to the design for diffing DAW projects, grounded in measurement rather than assumption. A single note edit localizes to 1 of roughly 1,800 binary events and a 143 to 167 byte patch, while opaque plugin blobs account for up to 76 percent of file bytes.
  • Contributed to the architecture of flparse, a Rust crate that parses FL Studio's binary event stream and re-encodes it byte exactly across every test fixture.
  • Four contributor monorepo, 376 commits. TypeScript, Rust, Convex, Bun, Turborepo, Nix.

Virtual Vince|Founder, Software Engineer|February 2024 – Present|Stratford, ON

Independent development business building and operating production systems for clients in health, arts, education and e-commerce.

  • Provision and administer a multi tenant Ubuntu Server VPS end to end, from a bare install through HestiaCP, user accounts, DNS, firewall rules and my own backup routines. It hosts several independent sites.
  • Wrote 11 WordPress plugins in PHP that create pages, navigation, layouts, forms and content programmatically, putting site structure under version control instead of in a sequence of manual admin actions.
  • Built an audit log plugin with its own database table, a schema version key for migrations, configurable account exclusions, and exact diff capture for every content edit alongside plugin and publishing events.
  • Ship and maintain Next.js, TypeScript and Tailwind applications, including one client on a monthly hosting and maintenance retainer.
  • Run ChironAI, an AI enablement service covering team training, agent setup and business process automation.

Daniel Digital|Developer, Contract|June 2021 – October 2023|Canada

Development for a digital marketing consultancy serving clients across North America. Part time and intermittent alongside school, contracted per project.

  • Built client websites and web applications using HTML, CSS, Python, React and Next.js.
  • Handled server deployments and releases for client projects.
  • Worked directly with clients on requirements and change requests.

Telus|Sales Representative|October 2023 – January 2024|Stratford, ON

  • Consultative sales of connectivity and hardware products, translating technical product differences for non technical customers.
Client Work

Elizabeth Gardens Creative Collective|Ubuntu Server, HestiaCP, PHP, WordPress, MySQL

creativecollectiveonline.com/

Community arts organization on a multi tenant VPS I provision and administer end to end. 11 custom plugins including an audit log capturing the exact diff of every content change.

Radiant Roots Vitality|Next.js, TypeScript, Tailwind

www.radiantrootsvitality.com/

Health practice site with Google Maps and a Fullscript storefront handoff. Hosted and maintained on a monthly retainer.

Exploding Paint Brushes|LAMP, WordPress, MySQL

explodingpaintbrushes.com/

Artist portfolio and storefront, a separate tenant on the same VPS, managed independently. Custom backend work and MySQL query tuning on a LAMP stack.

K2E Canada|Shopify, Liquid

www.k2e.ca/

Professional education storefront with custom Liquid.

My YAYBI Way|Next.js, TypeScript, Tailwind, Shopify Storefront

myyaybiway.me/

Custom front end pulling live products, images and metadata from a Shopify storefront.

Projects

terraform-k3s-aws|Terraform, Kubernetes, AWS, Go

github.com/VirtualVince/terraform-k3s-aws

Single node Kubernetes cluster provisioned end to end with Terraform. VPC, security group and EC2 node running k3s via cloud-init, with a Go service behind an ingress. SSH access fails closed rather than defaulting to 0.0.0.0/0.

Distributed Systems Practice|Go

github.com/VirtualVince/Interview

Six primitives with full test suites run under the race detector. Raft leader election, a Bitcask style log structured key value store with CRC and crash recovery, a consistent hash ring, vector clocks, a bounded worker pool, and a token bucket rate limiter.

CIFAR-10 Regularization Study|Python, TensorFlow

github.com/VirtualVince/cifar10-regularization-study

A controlled four model comparison isolating what dropout, L2 weight decay and augmentation each contribute to generalization. An overparameterized 12M parameter dense baseline reaches roughly 45 percent validation accuracy, a three block CNN combining all three exceeds 80.

Employee Management System|Node.js, Apollo GraphQL, MongoDB, Angular

github.com/VirtualVince/employee-management-system

Enforces authorization per resolver off a JWT resolved context and returns coded GraphQL errors so clients branch on stable codes rather than message strings.

r3builds|C++, Arduino

github.com/VirtualVince/R3Builds

Ten embedded builds covering GPIO and timing, debounce, PWM, UART, ADC, I2C, SPI, a closed sensor to actuator control loop, a finite state machine, and IR protocol decode into actuation.

Education

George Brown College, Toronto|Advanced Diploma, Computer Programming and Analysis|2026

  • Dean's List, final semester.
  • Coursework included Developer Operations, deploying a containerized application to AWS using Terraform, Kubernetes, Jenkins CI, Kafka and Keycloak.
  • Applied Machine Learning, Full Stack Development, Mobile Application Development, Data Structures and Algorithms, System Analysis and Testing, Linux Essentials.

Harvard University|CS50x, Introduction to Computer Science