Senior Backend Engineer

cyluscybersecurity· R&D
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📍 Tel-Aviv, Israel

About this role

Cylus is a cybersecurity startup, led by world-class cyber experts. Our mission is to protect millions of people, worldwide, from cyber threats specific to modern trains, keeping them safe and on time.

 

 

 

About Us

Cylus, the global leader in rail cybersecurity, helps mainline and urban railway companies prevent security incidents and service disruptions caused by cyber-attacks. With about $60M in funding by top VCs and strategic investors, global customers and strong partnerships with the biggest railway integrators, we make a significant impact on the multi-billion global railway industry. 

We are looking for an exceptional Senior Backend Engineer to join our R&D team and help us get to the next level. If you have the right attitude and skills, we invite you to hop on board this bullet train. 

In this role, you will: 

  1. Lead the design, development, and optimization of microservices tailored for the scalable processing of high volumes of network communication data.
  2. Collaborate with experienced engineers to architect distributed & scalable data processing solutions that backbone our Rail Tech Security Platform, CylusOne.
  3. Collaborate with the brightest network researchers to productize our cybersecurity threat detection & network analysis features.
  4. Apply advanced software engineering principles to optimize code performance, scalability, and resource utilization across microservices & algorithms.
  5. Develop in Go while leveraging a cutting-edge technology stack 
  6. Truly have fun coming to work every day 

 

Requirements: 

  1. 6+ years of experience,  specifically in building and maintaining scalable & complex software systems.
  2. Proven track record of delivering large-scale, high-quality products
  3. Tech-savvy, always up-to-date with best practices and latest technology developments
  4. Proven ownership: thoughtful design, realistic estimates, and consistent delivery.
  5. Proven experience in using and integrating AI into daily tasks
  6. Love to take on creative tasks, have end-to-end ownership, and work collaboratively to advance our mission and business goals 

 

Advantages:

  • Strong Linux and networking fundamentals (TCP/IP, sockets, latency/throughput basics).
  • Bachelor's degree in computer science, Electrical Engineering, or equivalent practical experience
  • Deep understanding of Microservices and containerized environments (Docker/Kubernetes).
  • Experience with Golang and c/c++
  • Experience with cloud environments
  • Experience working in Linux environment

Frequently Asked Questions

Is the salary disclosed for the Senior Backend Engineer position at cyluscybersecurity?
The salary for this Senior Backend Engineer role at cyluscybersecurity is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Senior Backend Engineer position at cyluscybersecurity located?
This Senior Backend Engineer role at cyluscybersecurity is based in Tel-Aviv, Israel. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Which team or department does the Senior Backend Engineer at cyluscybersecurity belong to?
This Senior Backend Engineer position is part of the R&D department at cyluscybersecurity. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior Backend Engineer position at cyluscybersecurity?
Click the "Apply Now" button on this page. You will be redirected to cyluscybersecurity's official application portal hosted on greenhouse where you can submit your application directly.
When was the Senior Backend Engineer job at cyluscybersecurity posted?
This Senior Backend Engineer position at cyluscybersecurity was posted on Nov 18, 2025. Apply as soon as possible — early applications are often reviewed first.
Senior Backend Engineer
cyluscybersecurity
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