— A PORTFOLIO · 2022—2026
VICTOR.
I build backend systems and AI tooling, with a focus on cybersecurity, operational security, and applied research.
Currently
Software Engineer
SUPERBAR · TORONTO
Education
B.Sc. Computer Science
WESTERN · CLASS OF 2026
Stack
TypeScript · Python
NEXT.JS · POSTGRES · K8S
Signals
Security · AI · Research
04 PROJECTS · 05 ROLES
ABOUT
// PROFILEI'm drawn to the parts of the stack where correctness matters most: cryptography, distributed systems, backend infrastructure, and the services other software depends on. I use AI tools to reduce busywork and move faster, while keeping my focus on architecture, reliability, and hard technical decisions. I care about the visible user experience, but I'm especially interested in the quiet systems that make products dependable.
EXPERIENCE
05 ENTRIES- Building core systems for an internal multi-agent AI platform — a durable, inspectable pipeline where AI agents claim scoped jobs, execute them, and hand work off between stages.
- Designing agent-to-agent (A2A) communication and handoff so agents coordinate, share context, and recover from failure through explicit, durable contracts.
- Engineered the execution layer that runs AI coding agents in isolated, ephemeral sandboxes behind a job API — with stage-scoped permissions, heartbeats, and structured completion contracts.
- Shipping AI-for-sales automation — account research, next-best-action decisions, and personalized outreach — built to be debuggable and to learn from real engagement.
- Researching agent reliability: turning probabilistic model behavior into dependable systems through guardrails, output schemas, review gates, and end-to-end observability.
AI AgentsMulti-Agent SystemsAI ToolingWorkflow OrchestrationTypeScriptNestJSNext.jsPostgreSQL- 99.9%uptime · 5,000+ students
- Led end-to-end development of an AI study platform serving 5,000+ students across 50+ universities.
- Designed and built backend services in Next.js, Node.js, PostgreSQL, Redis, and Qdrant — schema design, indexing, and data-integrity constraints.
- Reduced semantic-search latency ~35% and ingestion time 40–50% via caching, async pipelines, and OCR optimization.
- Achieved 99.9% uptime through containerization, Kubernetes orchestration, and system monitoring.
- Built CI/CD with GitHub Actions to automate testing, container builds, and production deployments.
- Shipped secure admin and partner dashboards with role-based access control, analytics, and automated approval workflows.
Next.jsNode.jsPostgreSQLRedisQdrantKubernetesRAGCI/CD - <80% → 90%+UI test coverage
- Increased UI test coverage from under 80% to over 90% with Jasmine and Karma, cutting regression defects.
- Refactored NgRx state management and Angular component architecture to remove unnecessary re-renders and improve front-end performance.
- Built a reusable form- and document-templating engine that cut enterprise onboarding configuration from hours to minutes.
AngularNgRxTypeScriptJasmine / KarmaPerformance - 1st placeTangerine challenge
- Built a quantum optimization engine in Qiskit + Python for bike-redistribution routing — ~25% efficiency gain, 1st place at the Tangerine challenge.
- Designed full-stack analytics dashboards (Angular + Python APIs) and delivered workshops on quantum cryptography and hybrid optimization to 20+ developers.
QiskitPythonQuantum ComputingAngularTeaching - 6+ languagesi18n · 2 enterprise clients
- Delivered production-ready Angular + TypeScript workflows integrated with REST APIs on AWS-backed enterprise systems.
- Implemented internationalization for 6+ languages, enabling onboarding of two major non-English enterprise clients.
- Partnered with backend teams to design and ship end-to-end features, improving reliability and reducing integration defects.
AngularTypeScriptREST APIsAWSi18n
PROJECTS
04 ENTRIESqcrypto
Simple, Pythonic access to post-quantum cryptography via Open Quantum Safe (liboqs). Kyber and Classic McEliece key encapsulation; Dilithium, Falcon, and SPHINCS+ signatures; and a hybrid PQC + AES-256-GCM scheme with streaming file support. Versioned ciphertext with corruption detection, stable key fingerprints, a tested end-to-end API, and a fully documented docs site — taken from idea to a 1.0.0 release.
- KEM
- Kyber · Classic McEliece
- SIG
- Dilithium · Falcon · SPHINCS+
- MODE
- hybrid PQC + AES-256-GCM
- LIB
- liboqs (Open Quantum Safe)
Analyzed station usage trends in R, then built a Qiskit + Python optimization engine that flags imbalanced stations and computes the most efficient redistribution routes to keep inventory balanced. Improved routing efficiency ~25% and took 1st place at Canada's first quantum-computing hackathon.
◇ QUANTUM LINEAGE
QuantumQiskitPythonROptimizationAn embedded perception system for autonomous-vehicle safety, built for a Western Engineering × General Motors hackathon. Processes live thermal-camera feeds to detect and classify pedestrians, cyclists, and vehicles in night, fog, and low light — outputting bounding boxes with confidence scores from a lightweight model running on a Raspberry Pi 5.
Computer VisionEmbeddedPythonOpenCVRaspberry PiA compact robotic device that helps visually- and dexterity-impaired people dose their own medication safely and independently. Tactile, indented buttons and audio cues guide dosage selection, then the device draws the exact amount from the vial into the syringe — reducing dosing errors and the need for a caregiver.
EmbeddedArduinoCircuit DesignAccessibility— no public repo
CAPABILITIES
// SPEC SHEET01 / Languages & Core
- TypeScript
- JavaScript
- Python
- Java
- SQL
- C / C++
- C#
- Bash
02 / Web, Backend & Cloud
- Node.js
- Next.js
- React
- Angular
- Vue.js
- REST / GraphQL
- Microservices
- AWS
- Docker
- Kubernetes
- Linux
- CI/CD
- GitHub Actions
- Nginx / Caddy
03 / Data, AI & Reliability
- PostgreSQL
- Redis
- Qdrant
- Distributed Systems
- RAG
- Embeddings
- LLM APIs
- Jest
- Sentry
- Performance
EDUCATION
// CREDENTIALSUniversity of Western Ontario
B.Sc. Computer Science
// see EXP/04 — Western Quantum Engineering Club, software leadership
CONTACT
// INITIATEvictor@postea:~$contact --list
- LINKEDINlinkedin.com/in/victor-postea↗
- GITHUBgithub.com/victorpostea↗
- PHONE
victor@postea:~$