Senior Software Engineer, Rust

February 18

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cside

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cside is a company focused on monitoring, securing, and optimizing third-party scripts that run on websites. By utilizing AI-driven techniques, they provide a fully autonomous detection tool that processes and analyzes scripts in real-time, ensuring users are protected from security risks associated with these scripts. cside aims to enhance the performance of these scripts while helping businesses comply with PCI DSS regulations to prevent potential security incidents.

Client Side Security • PCI DSS • Detect 0-Day Attacks

11 - 50 employees

Founded 2024

🔒 Cybersecurity

☁️ SaaS

🛍️ eCommerce

📋 Description

• about c/side: • c/side is laser focussed on solving web security, starting with browser side injections. Covering previously unmonitored attack surfaces in developer and user friendly ways. • the team of c/side are a diverse mix of highly capable subject matter experts. We’re kind but we mean business. • since January 2024, c/side has raised $ 7.7 million in pre-seed funding from val 7 investors. A team of handpicked, • this is a special and super important role for us: we are looking for an engineer with deep interest in security to help us build new detection methods, monitor threats as they happen and play around with our massive amount of data on script behaviours to prevent client-side attacks for our customers. • you will do: • keep an eye out on attacks around the world, we have a lot of data and keep an eye on a lot of websites. There is always a new attack method to be found. We want you to find it, develop a detection method, use existing attributes where possible and ship it! • review detections that happen with some of our existing in-house detections. Some may catch something we’ll want to narrow down on. • build new detection methods and rules for new attacks. A deep understanding of JavaScript would help here. However, a large range of our detection systems use Rust. • proactively define detections for client-side behaviours that can be malicious and review this against our script data. • use and build internal tools to detect never seen before attacks. • at c/side: • we’re constantly learning and developing better, we grow together • we do not ship half projects, we do not sell snake oil, we don’t cut corners - out of respect for our team, our customers and our community. We put a dent in the universe by building good products. • we believe in strong opinions loosely held. We’re passionate and we strive to build the best thing together. • we’re building a world class security company, and we simply want the best people for the job. We do not select or discriminate based on formal educational background, age, skin tone, religion, national origin, sexual orientation, gender identity, disability status, marital status, veteran status… we’re welcoming all and celebrate equal opportunities.

🎯 Requirements

• You love a cat and mouse game! • The fact that you are in a key position to stop bad actors from impacting unknowing individuals motivates you. • You have a deep understanding of JavaScript, browsers and ideally also some background in Rust and Yara rules. • Finding the gap between the specification of client-side JS and how JS engines are built is a hobby project for you. • You've been playing with LLMs and would love to use AI in security detections. • You’ve participated in capture the flag events or regularly spend time doing white hat hacking or bug bounties. • You’re self managing and want to disrupt the client-side (and web) security market. • You have at least 3-5 years prior work experience.

🏖️ Benefits

• 2-3 Offsites per year (this changes from time to time) • Generous work from home allowance • Latest Macbook • Stock options • Market rate salary • Take what you need PTO • Fully remote, 4h overlap with UK working hours required • Our team is invested in your long term career development. If you want to talk at events, we’ll make that happen, if you want to learn how to build your own startup one day, we’ll offer you a front line seat. C/side is built by folks like you.