Updated Sep 18, 2026

Tech Jobs in Guyancourt

Guyancourt jobs in Guyancourt hiring now at vetted startups and product companies on Alion, updated daily. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

Open positions
29
Companies
4
Top technologies
Guyancourt
AI/ML
Data Science
Backend
Frontend
Mobile
DevOps
Web3
Games
Hardware
Robotics
Security
QA
Leadership
Networking
Product
Design
Analytics
Support
Solutions
Enterprise Apps

Syngenta Group

syngenta.com
Syngenta is a global agricultural technology and agribusiness enterprise headquartered in Basel, Switzerland. Formed in 2000 through the merger of Novartis Agribusiness and AstraZeneca Agrochemicals, it now operates under the broader Syngenta Group as a subsidiary of Sinochem.
syngenta.com • HQ: Basel, Switzerland • Science & Engineering • Biotechnology • Farming & Agriculture • 5000+ employees • Est. 2000
HQ: Basel, Switzerland • Science & Engineering • Biotechnology • Farming & Agriculture • 5000+ employees • Est. 2000
Verified live · 7 hours ago 3 days ago

Alternant Analyste de donnees et support digital (H/F)

$41k – $77k per year (Estimated)In office (Guyancourt, France) • Internship • Senior • French: C1
Power BI
QlikSense
Apply
Report

Alliance Workday

alliancewd.com
Alliance Workday is the dedicated digital recruitment portal and HR technology infrastructure domain for the Renault-Nissan-Mitsubishi Alliance. Utilizing Workday's Enterprise Cloud platform, the site serves as the central talent acquisition gateway across the automotive alliance's global operations, including RCI Bank and Services (Mobilize Financial Services), Renault Nissan Technology & Business Centre India (RNTBCI), and regional manufacturing plants.
alliancewd.com • Cergy • Le Mans • São Paulo • Curitiba • Tunis • Information Technology • 1001-5000 employees
Cergy • Le Mans • São Paulo • Curitiba • Tunis • Information Technology • 1001-5000 employees
Verified live · 9 hours ago 4 days ago

CS27 Bac+5 - Stage Ingénieur R&D Radar Automobile (H/F)

$53k – $137k per year (Estimated)In office (Guyancourt, France) • Full-Time • French: C1
Python
Apply
Verified live · 9 hours ago 4 days ago

CS27 - Bac+5 Stage Data Engineering (H/F)

$47k – $91k per year (Estimated)In office (Guyancourt, France) • Full-Time • French: C1
Python
SQL
Python
pySpark
Databases
Google BigQuery
BigQuery
AI/ML
Polars
Spark
Transformers
DevOps
GCP
Git
Docker
Analytics
Power BI
+4
Apply
Verified live · 9 hours ago 5 days ago

CS27 - STAGE - Bac+4/5 - Data Scientist - H/F

$49k – $95k per year (Estimated)In office (Guyancourt, France) • Full-Time • French: C1
Machine Learning
Analytics
Looker
Apply
Report

Qualcomm

qualcomm.com
Qualcomm is an American semiconductor and wireless technology company founded in 1985 and headquartered in San Diego, California. It holds foundational patents in CDMA and the 3G, 4G and 5G cellular standards, licensing them to nearly every handset maker in the world, while its chip division designs the Snapdragon platforms that power a large share of Android smartphones, personal computers, wearables and connected cars. The company has been diversifying away from smartphone dependence into automotive digital cockpit and driver assistance systems, industrial internet of things, and on-device AI processing through its Hexagon and Oryon architectures.
qualcomm.com • HQ: San Diego, United States • Car Electronics • Wireless • Semiconductors • 5000+ employees • Est. 1985
HQ: San Diego, United States • Car Electronics • Wireless • Semiconductors • 5000+ employees • Est. 1985
Verified live · 3 hours ago 6 days ago

Software Engineer - Qualcomm - Guyancourt, France

$51k – $103k per year (Estimated)In office (Guyancourt, France) • Bachelor's Degree
Python
Verilog
C++
SystemC
VHDL
C++
Qt
DevOps
Git
Linux
QA
Rest-Assured
+1
Apply
$68k – $158k per year (Estimated) • Staff+ • 4+ years expIn office (Guyancourt, France) • Bachelor's Degree • Staff • French: B2 (Optional) • English: B2 (Optional)
Rest-Assured
Apply
Reposted ×2Verified live · 3 hours ago 2 months ago

Technical Writer - Qualcomm - Guyancourt, France

$72k – $130k per year (Estimated) • Senior • 6+ years expIn office (Guyancourt, France) • High School Diploma • Senior • French: C2 • English: C2
Python
AI/ML
LLM
DevOps
GitHub
Linux
Windows
Management
Confluence
SharePoint
QA
Rest-Assured
Apply
Report

SOCOTEC

socotec.com
SOCOTEC is a major international testing, inspection, and certification (TIC) group headquartered in Guyancourt, France. Founded in 1953, the company provides independent risk management, technical consulting, and compliance services across the construction, infrastructure, energy, and industrial sectors. Operating with thousands of engineers and technicians across more than 25 countries, SOCOTEC delivers asset integrity monitoring, environmental testing, structural health monitoring, advisory consulting, and regulatory safety inspections to ensure structural safety, performance, and environmental compliance throughout the lifecycle of built assets.
socotec.com • HQ: Guyancourt, France • Testing, Inspection & Certification • Professional Services • 1001-5000 employees • Est. 1953
HQ: Guyancourt, France • Testing, Inspection & Certification • Professional Services • 1001-5000 employees • Est. 1953
Verified live · 9 hours ago 2 months ago

Ingénieur Réseau Senior H/F

$48k – $111k per year (Estimated) • Senior • 5+ years expIn office (Guyancourt, France) • PhD • Full-Time • Senior • French: C1
Python
AI/ML
Supervision
DevOps
Ansible
VMWare
AWS
SLI/SLO/SLA
Amazon CloudWatch
DNS
VPN
VLAN
Wi-Fi
BGP
OSPF
MPLS
Cybersecurity
FortiGate
Zero Trust
Management
ITIL
+9
Apply
Report

Salary range

Seniority Jobs 25% Median 75%
All levels 28 $67K $77K $101K

Few employers in this selection publish pay, so these figures are Alion estimates built from comparable listings by role, level and country. Gross annual, converted to USD.

On site 100%
29
Equity 17%
5

The market right now

Alion currently lists 29 open Tech jobs in Guyancourt from 4 companies. 10 of them were posted or refreshed in the last seven days. 4 of the employers have posted something in the last three months, which is the pool worth watching if you are starting a search now. Every listing links straight to the employer, so you apply on their own board rather than through an intermediary.

What these roles pay

Most employers in this selection do not publish a figure, so the range below is Alion's own estimate, derived from 28 comparable listings priced by role, level and country. Across them the middle half of the market sits between $67K and $101K a year, with a median of $77K. Figures are gross annual amounts converted to US dollars, so roles in different currencies stay comparable.

Who is hiring

The employers with the most open Tech jobs in Guyancourt right now are Alliance Workday (16), Qualcomm (11), Syngenta Group (1), and SOCOTEC (1). Each company page on Alion carries its size, funding stage, tech stack and every other position it has open, so you can judge the employer before you spend an evening on the application.

What employers ask for

Reading across the current listings, the tools that come up most often are Python (20), Rest-Assured (11), Git (9), Verilog (7), Linux (7), SQL (6), GCP (6), and Looker (5). The counts are how many of these openings name each one, which is a better guide to what is actually being hired for than a generic skills list.

Relocation, visas and equity

Of the current Tech jobs in Guyancourt, 1 offers a relocation package and 5 include equity. These are filters on the list above, so you can narrow it to the ones that make a move possible for you.

Tech Jobs in Guyancourt
Frequently asked questions
How many Tech jobs in Guyancourt are open right now?
There are 29 open Tech jobs in Guyancourt on Alion from 4 companies. The list was last refreshed on September 18, 2026.
What do Tech jobs in Guyancourt pay?
The median is $77K a year, and the middle half of the market falls between $67K and $101K. Few of these employers publish a figure, so this is Alion's estimate based on 28 comparable listings.
Are any of these roles remote?
This selection is currently made up of on-site and hybrid positions. Use the remote filter on the jobs page to see what is open elsewhere.
Which companies are hiring?
The most active employers right now are Alliance Workday, Qualcomm, Syngenta Group, and SOCOTEC. Each has its own page on Alion with the rest of its open roles.
Can I get visa sponsorship or relocation?
Yes - of the current listings, 1 offer a relocation package. Both are filters on the jobs page.
How do I apply?
Open any listing and apply on the employer's own board through the link on the page. No account is required to browse or to apply.