Yaniv Yissachar

Yaniv Yissachar

Senior Software Engineer

I design and build complex software systems end to end, from real-time flight simulation in C++ to a multi-tenant SaaS with an in-app AI agent.

Status: Open to work
Focus: C++ · Real-Time & Distributed Systems · Software Architecture
2023–2026

Israel Aerospace Industries (IAI)

Flight Simulation Software Engineer

  • Designed internal APIs and modular interfaces for integrating heterogeneous simulation components into distributed flight-simulation systems.
  • Built real-time, multithreaded simulation modules in C++14/17 and Qt, including HLA-based environments and TCP/UDP communication with external subsystems.
  • Worked with multidisciplinary teams and industry partners on interoperable, mission-critical training systems.
2021–2022

Sim.Space

C++ Software Engineer (Aerospace Simulations)

  • Built C++ simulation models for aerospace sensors and environmental conditions.
  • Validated simulation behavior against real-world aerospace data with engineers and domain experts.
  • Automated build, deployment, and environment setup (Jenkins, Docker, Shell/Batch).
2016–2021

Arithmos

Independent Software Consultant & Technical Instructor

  • Built network-monitoring web applications for educational and commercial clients.
  • Delivered advanced training in C++, C#, Python, multithreading, operating systems, and object-oriented design.
  • Designed technical curricula and delivered custom software and engineering solutions.
2014–2016

Traffilog

Software Developer

Acquired by Questar Auto Technologies

  • Built JavaScript client applications and backend C/C++ modules for fleet management and vehicle telematics.
  • Implemented new product features and participated in code reviews, debugging, and performance optimization.
  • Collaborated with multidisciplinary teams to improve the reliability of fleet-monitoring platforms.
2025–2026

Givat Washington College

Adjunct Lecturer

Three intensive courses on Generative AI and AI-assisted development workflows.

Interfaces First

Independently developed components integrate reliably only through explicit contracts. At IAI, I designed the internal APIs that connected heterogeneous simulation components.

Validate Against Reality

A simulation is only as useful as its agreement with real-world behavior. At Sim.Space, I validated sensor and environment models against real aerospace data with domain experts.

Correctness Under Concurrency

Concurrent code must stay correct under any interleaving, not only in passing tests. I built real-time multithreaded modules at IAI and concurrency-safe booking in Vyronium.

Open Source

Chromium DevTools

Accessibility fix in Chromium DevTools, written in TypeScript. Reviewed by Google and Microsoft engineers and merged (CL #6990990).

TypeScript Chromium Open Source DevTools
Full-Stack SaaS

Vyronium

Solo-built multi-tenant fitness-club SaaS with Admin, Instructor, and Member portals, branch-scoped access control, and concurrency-safe booking that prevents double bookings. The in-app AI agent handles user queries, manages alerts, and summarizes financial and membership data.

TypeScript Node.js React PostgreSQL

10+ years of software development experience.

Core
  • ▸ C++14 / 17 / 20
  • ▸ System Architecture
  • ▸ Real-Time Systems
  • ▸ Multithreading
  • ▸ Performance Engineering
Platforms / Protocols
  • ▸ Qt
  • ▸ TCP / UDP
  • ▸ HLA / DIS
  • ▸ Linux
  • ▸ Windows
Web / SaaS
  • ▸ TypeScript
  • ▸ JavaScript
  • ▸ Python
  • ▸ Node.js
  • ▸ React
  • ▸ PostgreSQL
  • ▸ REST / API Design
Tools
  • ▸ LLM APIs
  • ▸ Cursor
  • ▸ CI/CD Pipelines
  • ▸ Jenkins
  • ▸ Docker

Let's Build Something.

Open to senior engineering roles and complex technical challenges.