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Open to 2027 graduate engineering roles
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aymankhayat/README.md

Ayman Khayat

Mechanical Engineering student at the University of Nicosia, graduating June 2027. I build simulation and decision tools for energy systems, manufacturing and capital projects.

My interest is in the part of engineering where a physical system meets a decision someone has to defend: how long a substation takes to energise, which process to cut a bracket on, how much a solar array actually returns at a given latitude. The repositories below are where I work those questions out.

Most recently I spent five months as a Mechanical Engineering intern at Toyota Cyprus, rotating through Mechanical Service, Pre-Delivery Inspection and Reception.

Focus

  • Engineering analysis and simulation
  • Energy and renewable energy systems
  • Project risk, cost and schedule modelling
  • Manufacturing process selection and operations
  • Engineering economics and technical decision support

Selected projects

Project What it does Engineering content
material-properties-reference Interactive reference for 27 engineering materials, from A36 through Ti-6Al-4V to PEEK and zirconia Stress-strain behaviour by material class, Ashby selection charts, Fe-Fe₃C phase diagram with the lever rule, tempering response, ASTM E140 hardness conversion
substation-risk-simulator Monte Carlo cost and schedule risk for a 40 MVA 132/33 kV transformer addition Beta-PERT sampling, critical path re-solved per iteration, Iman-Conover correlated inputs, Spearman tornado sensitivity, verified against analytic test vectors
process-traveler Ranks CNC, injection moulding, casting, forging, sheet metal and 3D printing against a part's requirements Process capability limits, tooling amortisation, break-even quantity analysis, every figure carrying a source and a confidence label
renewable-energy-field-guide Comparison of seven renewable sources with a solar array planner Solar geometry: optimum fixed tilt by latitude, azimuth, inter-row shading pitch at winter solstice
tendra-h1-robotic-hand Parametric tendon-driven robotic hand generated from a single Python script Parametric geometry generation, linkage layout, bill of materials
capital-committee Runs a capital decision past a simulated investment committee NPV, IRR, tornado sensitivity on a capital expenditure case

Skills

I've split these by what backs them, because "knows MATLAB" and "shipped a MATLAB model" are different claims.

Demonstrated in the repositories above: materials selection and mechanical behaviour, manufacturing process selection, solar geometry, Monte Carlo simulation, critical path method, sensitivity and correlation analysis, engineering economics, numerical methods (pseudo-random generation, inverse-CDF sampling, Cholesky factorisation), JavaScript, TypeScript, React, Python, three.js, D3, Git, GitHub Actions, automated testing.

From engineering coursework at UNIC: SolidWorks, MATLAB, ANSYS, C, CAD, Microsoft Visio. Course projects include a solar water heating system modelled in SolidWorks with a MATLAB thermal model, and a strain-gauge cantilever load cell validated across 30+ calibration measurements to under 2% error. These are not yet represented by a repository here; putting a MATLAB and CAD project in public is my current priority.

From industry practice at Toyota Cyprus: Toyota Techstream and OBD-II diagnostics, diagnostic trouble code interpretation, root cause analysis, OEM service procedure compliance, hybrid powertrain systems including Hybrid Synergy Drive and regenerative braking, Toyota Production System, Kaizen and 5S.

How these are built

I use AI-assisted development, mostly Claude Code, and I say so in each repository. The engineering decisions, the models and the choice of method are mine, and each project documents its assumptions and limitations so the reasoning can be checked rather than taken on trust.

Elsewhere

Alongside my degree I'm President of the School of Engineering and Head of International and Public Affairs in the University of Nicosia Student Union.

LinkedIn · aymankhayat684@gmail.com

Pinned Loading

  1. capital-committee capital-committee Public

    Run a capital decision through a simulated investment committee of seven Claude-powered departments, model it with NPV/IRR/tornado sensitivity, and drill consulting case interviews.

    JavaScript

  2. material-properties-reference material-properties-reference Public

    Interactive reference for 27 engineering materials: stress-strain behaviour, Ashby selection charts, Fe-Fe3C phase diagram with the lever rule, tempering response and ASTM E140 hardness conversion.

    TypeScript

  3. process-traveler process-traveler Public

    Manufacturing process selection tool: ranks CNC, injection molding, casting, forging, sheet metal and 3D printing for a part's requirements, with sourced cost data and a break-even chart.

    JavaScript

  4. renewable-energy-field-guide renewable-energy-field-guide Public

    Interactive, cinematic guide to 7 renewable energy sources: live effects, 3D globe atlas, regional fit ratings, metric/imperial. React + TypeScript + D3.

    TypeScript

  5. substation-risk-simulator substation-risk-simulator Public

    Monte Carlo cost and schedule risk simulator for capital engineering projects: Beta-PERT estimates, critical path re-solved per iteration, Iman-Conover correlated inputs and tornado risk drivers, v…

    HTML

  6. tendra-h1-robotic-hand tendra-h1-robotic-hand Public

    Parametric tendon-driven robotic hand generated from one Blender Python script, with exploded view, posable rig, BOM and a three.js live lab.

    HTML