Role: Bookkeeper
Reporting To: Head of Operations
Location: Sheffield (Flexible work / Hybrid available)
Industry: Hardware Encryption / Cyber Security
About the Company
Sitehop is a technology startup building a faster, better, greener alternative to the encryption options on the market today. Unlike software, our product delivers super-fast encryption and is easily deployed onto network hardware. Sitehop is disrupting the cybersecurity and networking market by developing hardware products and solutions that deliver ultra-high speed, low latency, cryptography solutions for Cloud Infrastructure and 5G Telecom.
We seek talented and driven individuals to be an impactful part of our journey. This is an opportunity for entrepreneurial innovators who are comfortable working in a dynamic environment on game-changing technology.
The Role
We’re looking for a detail-oriented Bookkeeper to join our growing team and take ownership of our daily financial operations. Working closely with our external finance partners, you’ll play a critical role in ensuring our financial processes run smoothly and accurately.
What you will be responsible for
Skills & Experience
Essential Qualifications
Desirable Qualifications
Why Sitehop?
At Sitehop, we’re building cutting-edge hardware to protect the world’s most critical networks. We move fast, we think bold, and we give our people the autonomy to do their best work. We offer:
Join us and be part of a team where your contribution isn’t just noticed - it’s essential.

The Next Generation of High-Performance, Crypto-Agile Security.
Security should empower, not slow you down. As networks evolve and cyber threats grow more sophisticated, traditional encryption introduces latency, inefficiency, and future security risks. The SAFE Series by Sitehop is designed to change that. Built on hardware-accelerated encryption, our solutions deliver sub-microsecond security—protecting data in motion without compromising performance.
Unlike legacy, software-based encryption, Sitehop solutions leverage FPGA-powered technology, purpose-built to handle high-speed, high-volume network traffic. This hardware-first approach eliminates encryption bottlenecks, ensuring:
• Ultra-Low Latency Encryption and High Throughput
• Enhance SD-WAN/NGFW Performance
• Seamless Transition to PQC
• Supports the move to Net Zero
So if you're need a high-speed network with Post Quantum Computing resistant encryption and IPsec compliant devices that can handle 200Gbps full duplex bandwidth at the world’s lowest 835nsec latency in a single 1U rack space – look no further than Sitehop…
Engineered for speed. Built for the future.