---
title: 'Security Engineer at OLIX'
canonical: 'https://feeny.ai/job/security-engineer-olix-london-wxd6vqtp73ve'
type: 'job'
last_seen: '2026-11-08'
---

# Security Engineer at OLIX

- **Company:** OLIX
- **Location:** London, United Kingdom
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-11-03
- **Last confirmed live:** 2026-11-08
- **Apply:** https://jobs.ashbyhq.com/olix/1dfe5f74-f411-49fd-94c9-672daad0952d

## Job description

## About OLIX

AI is growing faster than any technology in history, and the demand has created an infrastructure gap: we can no longer build chips or power stations fast enough to keep up. The industry still relies on a ten-year-old hardware blueprint that has reached its limit. The OLIX Decode Accelerator 1 (DX-1) is the first accelerator architected specifically for decode. Rack-scale co-design of logic, data movement, packaging, optics and interconnect delivers a step change in system-level performance.

## The Role

We are hiring a Security Engineer to own the security of the systems every OLIX employee depends on: identity, devices, email, collaboration tools and our cloud estate. Our IP is the company, and protecting it is a hands-on engineering job. You will own detection and response, harden our tooling, run vulnerability management and build the technical controls behind our ISO 27001 certification in 2027. You will work alongside our AI Security Engineer and IT Systems Engineer, and you will use automation and AI to make a small team cover a fast-growing company. This is a high-ownership role with the freedom to define how security engineering works at OLIX.

## Responsibilities

- Own detection and response: triage every security alert, work incidents end to end with our managed detection and response partner, and fix the root cause.
- Harden the core estate: configure and baseline security across identity, endpoints, Google Workspace, Slack, Atlassian, GitHub and AWS.
- Run vulnerability management: set remediation service levels, close vulnerabilities in order of real risk, and report progress every week.
- Build certification controls: operate and evidence the controls for ISO 27001, SOC 2 and NIST CSF.
- Extend detection coverage: connect new log sources to our SIEM and write the detection rules for them.
- Automate security work: build the scripts, agents and workflows that remove manual security tasks.

## Skills and experience

- 5 or more years in security engineering or security operations, owning controls end to end.
- Hands-on experience running a SIEM and writing detection rules.
- Hands-on experience administering EDR and responding to incidents on macOS and Windows.
- Working knowledge of identity security, ideally Okta.
- Experience securing SaaS platforms and AWS accounts.
- Technical controls delivered for at least one certification audit (ISO 27001, SOC 2 or Cyber Essentials).
- Scripting in Python or a similar language, and a habit of using AI to automate work.
- Nice to have: experience in a hardware, semiconductor or deep-tech company.

## Compensation and equity

- Competitive salary: commensurate with your experience, skills and location.
- Equity and ownership: meaningful stock options.
- Proximity bonus: an annual Living-Local Bonus if you live within 20 minutes of the office.
- Retirement benefits: employer-contributed retirement plans.

Due to U.S. export control regulations, candidates' eligibility to work at OLIX depends on their most recent citizenship or permanent residency status. We are generally unable to consider applicants whose most recent citizenship or permanent residence is in certain restricted countries (currently including Iran, North Korea, Syria, Cuba, Russia, Belarus, China, Hong Kong, Macau, and Venezuela). Applicants who have subsequently obtained citizenship or permanent residency in another country not subject to these restrictions may still be eligible.

## About OLIX

## Company Overview
- **One-liner**: OLIX, formerly known as Flux, is building a new compute paradigm using an SRAM-architecture integrated with photonics to solve the fundamental memory, energy, and speed constraints in deploying frontier AI.
- **Entity Type**: Private, Series A (raised $220M in February 2026)
- **Headquarters**: London, United Kingdom
- **Founded**: 2024
- **Founders**: James Dacombe (CEO)

## Core Business
- **Primary industry/industries**: Semiconductor Manufacturing, AI Infrastructure, Photonic Computing
- **Target customers**: Enterprise AI labs, hyperscalers, and frontier AI model developers requiring high-throughput, low-latency compute
- **Mission or purpose statement**: "Solving the most consequential problem in the deployment of frontier AI" by building infrastructure that overcomes the limits of current GPU-based memory architecture.

## Products & Services
- **OLIX Compute Platform**: A new hardware architecture combining SRAM-based compute with integrated photonics, designed to surpass HBM-based systems on throughput per megawatt and total cost of ownership (TCO), while delivering significantly better interactivity and latency than silicon-only SRAM architectures.

## Market Standing
- **Valuation**: Unicorn status; estimated $1–2.5B (latest round Feb 2026, per Dealroom)
- **Key Metric**: $220M in total funding (Series A, led by Hummingbird Ventures, with participation from Crane Venture Partners and others)
- **Notable Investors/Partners**: Hummingbird Ventures (Series A lead), Crane Venture Partners (pre-seed lead), and 4+ additional investors across seed and Series A rounds.
- **Growth Signals**: Headcount grew 420% YoY to 70 employees; operating in 6 countries (UK, US, Canada, Armenia, Romania, Germany); active job postings surged 188.9% YoY with 26 open roles as of mid-2026.

## Competitive Advantages
- **Unique photonic-SRAM architecture**: A contrarian bet that GPU-based approaches cannot simultaneously deliver high throughput and high interactivity at low cost due to physical design constraints.
- **Talent density**: Heavy hiring from top compute and AI companies (Apple, Amazon, Arm, Google, Tenstorrent).
- **First-mover in inference-era compute**: Targeting a fundamental bottleneck as frontier models require vastly more tokens per inference.

## Strategic Focus
- **Scale teams**: Aggressively hiring across engineering (ASIC/photonic design, FPGA, optics, process integration), operations, and legal in London, Austin, Toronto, Bristol, and San Francisco.
- **Prototype and productize**: Moving from architecture conception into hardware integration and manufacturing (roles include Process Integration Engineer, Opto-Mechanical Engineer, Layout Engineering Manager).
- **Transition from Flux branding**: Rebranded to OLIX in January 2026 to signal a new phase of company identity and scale.

## Why Work Here
- **In-person culture**: OLIX is an in-person company. They incentivize living within a 20-minute commute of the office with a £24,000 annual living-local bonus.
- **Compensation**: Benchmark-leading base salary, meaningful stock options (early employees build significant ownership), and workplace pension.
- **Benefits**: Comprehensive BUPA medical & dental (with Medical History Disregarded), 25 days holiday + UK bank holidays + birthday leave, meals on-site, cycle-to-work scheme, nursery scheme, visa sponsorship and relocation support.
- **Engineering environment**: M4 Mac standard (M5 Pro upgrade for engineering), on-site 3D-printing lab, noise-cancelling headphones, fully ergonomic workstation, and a culture of deep focus.
- **Impact**: "You will work with some of the best minds in photonics, systems, and compute on one of the defining problems of our era."

## Sources
1. [olix.com](https://olix.com/)
2. [olix.com/careers](https://olix.com/careers)
3. [LinkedIn - OLIX](https://www.linkedin.com/company/olix-computing)
4. [Dealroom - OLIX](https://dealroom.co/companies/olix-1/)
5. [jobs.ashbyhq.com/olix](https://jobs.ashbyhq.com/olix)

## Other roles at OLIX

- [Fabrication Technician (Cleanroom) (Contract)](https://feeny.ai/job/fabrication-technician-cleanroom-contract-olix-london-camebk6brn10) — London, United Kingdom
- [AI Security Engineer](https://feeny.ai/job/ai-security-engineer-olix-london-f2vwwxjem0ve) — London, United Kingdom
- [Senior/Staff NPI Mechanical Engineer](https://feeny.ai/job/senior-staff-npi-mechanical-engineer-olix-austin-tm6bcpx7at2d) — Austin, TX
- [Packaging Architect](https://feeny.ai/job/packaging-architect-olix-austin-x2g5ark8d4np) — Austin, TX
- [Director of Talent](https://feeny.ai/job/director-of-talent-olix-london-0n76xcpaxvtc) — London, United Kingdom
- [Manufacturing Process Engineer](https://feeny.ai/job/manufacturing-process-engineer-olix-london-3pn1h3n6htyz) — London, United Kingdom
- [Senior Compiler Engineer](https://feeny.ai/job/senior-compiler-engineer-olix-london-k03ensv4sz6s) — London, United Kingdom
- [Senior Embedded Software Engineer](https://feeny.ai/job/senior-embedded-software-engineer-olix-london-frfsaxgb8nk5) — London, United Kingdom
- [Architect/Staff Embedded Software Engineer](https://feeny.ai/job/architect-staff-embedded-software-engineer-olix-london-77v9452txdvw) — London, United Kingdom
- [Technical Program Manager](https://feeny.ai/job/technical-program-manager-olix-london-s1gsyxx4xdr8) — London, United Kingdom