Schweitzer Engineering Laboratories (SEL) Tech Stack

Digital protective relays and grid automation for utilities and industrial power systems

Utilities Pullman, WA 5,001–10,000 employees Founded 1982 Privately Held

SEL manufactures protective relays, automation controllers, and grid-modernization hardware deployed across 174 countries. The tech stack is firmware-heavy—VHDL, Verilog, FPGA tools (Xilinx, Altera, Microsemi), C/C++, and MATLAB—reflecting deep embedded-systems and hardware-design work. Active projects span new device platforms, transmission line deployments, and supplier partnerships, while stated pain points center on test-system improvement and supply-chain risk, suggesting SEL is scaling manufacturing and validation capacity alongside product growth.

Tech Stack 20 technologies

Core StackPython MATLAB AutoCAD C++ USB 3.0 DisplayPort ETAP VHDL Verilog Xilinx Altera Microsemi Tcl C/C++ cocotb MicroStation ANSYS Maxwell C Assembly FPGA

What Schweitzer Engineering Laboratories (SEL) Is Building

◆Challenges

Improving test systems
Project procedural deficiencies
Supply chain risk management

▲Active Projects

Greenfield transmission line projects
Protective relay development
New product enhancement
New device platform for government communication, metering, and power protection
Automation and protection system implementation
Strategic sourcing plans
Supplier partnership development
Cost reduction strategy development

Hiring Activity

Accelerating15 roles · 8 in 30d

Department

Engineering

Ops

Seniority

Senior

Mid

Lead

Junior

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About Schweitzer Engineering Laboratories (SEL)

Schweitzer Engineering Laboratories designs and manufactures digital protective relays, metering systems, automation controllers, and cybersecurity solutions for utilities and industrial power operators worldwide. Founded in 1982, the company introduced the first digital protective relay and maintains a 40+ year track record in power-grid reliability and modernization. Headquartered in Pullman, Washington, SEL operates globally with presence in over 174 countries, backed by a 10-year warranty and no-cost technical support. The product portfolio spans fault protection, distribution control, precise timing, and communications—core infrastructure for grid stability and resilience. SEL operates as a privately held firm with 5,001–10,000 employees.

HeadquartersPullman, WA

Company Size5,001–10,000 employees

Founded1982

Hiring MarketsUnited States, Italy, Spain

Frequently Asked Questions

What technology does Schweitzer Engineering Laboratories use?

SEL's stack centers on embedded systems: VHDL, Verilog, FPGA design tools (Xilinx, Altera, Microsemi), C/C++, Python, MATLAB, and assembly. They also use MicroStation, AutoCAD, ANSYS Maxwell for design, and ETAP for power system modeling.