# Senior Backend Engineer at Cylus Cybersecurity

> Israel · Senior · Backend · open. Source: https://alderhq.app/jobs/greenhouse%3Acyluscybersecurity%3A8296609002 (read 2026-11-11).

## Facts (observed)

- Company: [Cylus Cybersecurity](https://alderhq.app/companies/cylus-cybersecurity)
- Location text: Tel-Aviv, Israel; Tel-Aviv HQ
- Where it can be done from (inferred): Israel (evidence: "Location: Tel-Aviv, Israel; Tel-Aviv HQ")
- Posted: 2025-11-18 (358 days ago)
- First seen by alder: 2026-11-07 · last verified: 2026-11-07
- Reposted: 0 times · edited: 0 times
- Apply on the employer's site: https://www.cylus.com/careers/8296609002?gh_jid=8296609002
- Skills listed (inferred): Go, C++, Kubernetes, Docker, Distributed systems

## Pay and sponsorship

- Posted pay: not posted

## Description (the employer's text)

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

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

- 6+ years of experience, specifically in building and maintaining scalable & complex software systems.
- Proven track record of delivering large-scale, high-quality products
- Tech-savvy, always up-to-date with best practices and latest technology developments
- Proven ownership: thoughtful design, realistic estimates, and consistent delivery.
- Proven experience in using and integrating AI into daily tasks
- 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

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Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/greenhouse%3Acyluscybersecurity%3A8296609002 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.