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Rostyslav Melnyk
Target positions: ASIC RTL Design Engineer • FPGA Design Engineer • VLSI Design Engineer • Physical Design (Backend) Engineer • Circuit Design Engineer • SoC Integration Engineer • CPU Design Methodology Engineer (long-term)
Education
National Technical University of Ukraine 'Igor Sikorsky Kyiv Polytechnic Institute' (KPI)
Faculty of Electronics
Bachelor's Degree in Micro- and Nanosystems Engineering
3nd Year (started September 2024)
Technical Skills
HDLs & Modeling
• Register Files
• Memory Modeling (SRAM, ROM)
• SystemVerilog
• Verilog
• RTL design
• Structural and behavioral modeling
• Finite State Machines (Moore & Mealy)
Digital Logic
• Combinational and sequential logic
• Multiplexers
• Decoders
• Priority encoders
• Registers & Flip-Flops
• Full Adder
• Tri-state buffers
• Seven-segment decoder
Physical Design (RTL-to-GDSII)
• Floorplanning & Power Distribution Network (PDN)
• Global & Detailed Placement
• Clock Tree Synthesis (CTS)
• Global & Detailed Routing
• Multi-Corner Static Timing Analysis (STA)
• DRC / LVS Signoff
• Antenna Effect Diagnosis & Diode Insertion
• Fanout & Timing Closure
Verification & Analysis
• Testbench development
• Self-checking testbenches
• Functional verification
• VCD waveform analysis
EDA Tools
• OpenLane / OpenROAD (RTL-to-GDSII flow)
• Magic VLSI (layout, DRC, GDSII streaming)
• KLayout
• SkyWater SKY130 PDK (via ciel)
• Verilator
• Yosys
• Netlistsvg
• Surfer
• LTspice
• EveryCircuit
Programming
• C (basic)
• Python (basic)
• Git
• VS Code + DVT IDE for Verilog/SystemVerilog/VHDL/e Language (AMIQ EDA)
• macOS/Linux Terminal
Hardware Fundamentals
• Register-Transfer Level (RTL) Design
• Hardware Architecture: Memory Hierarchy
• Digital Electronics
• CMOS Logic
• MOSFET Fundamentals
Projects
• RISC-V Core — ASIC Physical Implementation (RTL-to-GDSII): Took a custom 32-bit single-cycle RV32I core from RTL through a fully routed, signed-off GDSII layout on the SkyWater 130nm PDK using the OpenLane/OpenROAD flow. Diagnosed and fixed a synthesis bug where a topology lacking observable output ports caused the optimizer to eliminate the entire netlist as unreachable logic, then resolved floorplan density failures, clock/data-path fanout violations, and antenna-rule violations by tuning synthesis constraints and diode-insertion strategy. Reached 0 DRC violations, 0 LVS errors, and full setup/hold timing closure across all corners; published with RTL, config, GDSII, and a documented signoff report on GitHub.
• Parameterized SRAM Design: Implemented a synthesizable, parameterizable single-port SRAM module in SystemVerilog, configured for 64x32 word capacity with synchronous write and asynchronous read logic. Verified functionality with custom self-checking testbenches and validated the gate-level implementation using Yosys synthesis.
• 3-Port Register File (32x32): Designed a 3-port register file for CPU architectures with two asynchronous combinational read ports and one synchronous write port. Implemented hardwired zero-register logic following standard RISC/MIPS architectural requirements.
• Combinational ROM-based Decoder: Developed a 4x3 ROM module as a combinational decoder. Validated functionality with exhaustive for-loop-based testbenches and verified the generated RTL schematic.
• CMOS Logic Design & Simulation: Designed and simulated CMOS logic circuits in EveryCircuit (AND, OR, NOR, XOR, Majority, Minority, Transmission Gates).
• SystemVerilog RTL Design: Implemented multiplexers (2:1, 4:1, hierarchical), priority encoders, decoders, registers, flip-flops, seven-segment decoder, and Moore/Mealy finite-state machines.
• Verification & Timing Analysis: Developed self-checking testbenches, generated VCD waveforms, and analyzed timing using Surfer.
• RTL Synthesis & Visualization: Synthesized RTL designs with Yosys and generated gate-level schematics using Netlistsvg.
• Workflow Automation: Created shell scripts to automate Verilator simulation and schematic generation.
GitHub
GitHub: https://github.com/rostyslavmelnyk33 (username: rostyslavmelnyk33)
Featured project — RISC-V Core (RTL-to-GDSII): https://github.com/rostyslavmelnyk33/CPU
Languages
Ukrainian — Native
English — B1 (improving)