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FOI Tech Stack

Swedish government defence research agency advancing military and civil security

Research Services Stockholm 1,001–5,000 employees Government Agency

FOI is Sweden's state defence research organisation, operating across underwater acoustics, cyber defence, space technology, electromagnetic warfare, and CBRN capabilities. The tech stack—VHDL, FPGA, MATLAB, GNU Radio, alongside Python and C for signal processing—maps to sensor systems and simulation work. Active hiring is concentrated in research (mid-career focus) and security roles, with engineering gaps in simulator development and radio systems, suggesting FOI is scaling prototyping and real-time signal classification workloads that demand both domain expertise and hands-on implementation.

Tech Stack 32 technologies

Core StackC++ Python Linux MATLAB C# VHDL C FPGA ARM Xilinx GNU Radio C/C++ Windows Microsoft Office Excel 4G LTE 5G LabVIEW Word PowerPoint Unix Illumina Oxford Nanopore Bash Nextflow Snakemake R Git 4G/LTE+2 more

What FOI Is Building

Challenges

  • Increased demand for security solutions
  • Detecting radio transmitters in noisy environments
  • Strengthening interface with companies
  • Accuracy and performance in simulations
  • Developing finance processes
  • Quality assurance of project invoicing
  • Improving underwater signature analysis
  • Developing future ships systems
  • Utforma energiförsörjning för mobila anläggningar
  • Utvärdera prestanda för energilagringssystem

Active Projects

  • Alternative navigation methods
  • Custom calculation software
  • Develop data analysis methods for seismic-acoustic signals
  • Analysis of underwater signatures
  • Hypersonic weapon simulation
  • Classification of underwater sensor signals
  • Prototype development for future defense systems
  • Monitoring of national and international data
  • Developing radio systems for unmanned protection
  • Pnt gnss protection techniques

Hiring Activity

Accelerating80 roles · 50 in 30d

Department

Research
33
Security
14
Telekrig
11
Engineering
9
HR
2
Ops
2
Support
2
IT
1

Seniority

Mid
41
Senior
28
Junior
5
Manager
3
Intern
1

Notable leadership hires: Head of simulator development, IT Development Section Head

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About FOI

FOI is a Swedish government agency conducting defence and security research with ~1,000–5,000 employees based in Stockholm. The organisation works across ten major research domains: underwater acoustics and signature analysis, cyber defence, space technology, electromagnetic warfare, CBRN defence, explosives, sensor systems, civil resilience, military systems adaptation, and strategic policy analysis. FOI operates in direct partnership with the Swedish Armed Forces, NATO allies, and Swedish industry, delivering field-tested solutions that inform national defence strategy and capability development.

HeadquartersStockholm
Company Size1,001–5,000 employees
Hiring MarketsSweden

Frequently Asked Questions

What technology does FOI use for signal processing?

FOI's primary stack includes MATLAB, GNU Radio, Python, C, and C++ for analysis and algorithm development, alongside FPGA/VHDL and ARM for embedded and real-time processing. Tools like LabVIEW support sensor system development.

What is FOI working on?

Current projects span underwater signature analysis, hypersonic weapon simulation, radio system prototyping, seismic-acoustic signal analysis, GNSS/PNT protection techniques, and data monitoring systems. Work prioritises simulation accuracy, signal classification in noise, and future defence platform design.

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