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Fractile

Accel — Backed by Accel Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
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Company facts

Series B-stage
Founded
2022
Employees
89
Headquarters
United Kingdom
22 jobs
Fractile
yesterday

Chief Information Security Officer (CISO)

NewBe an early applicant UKC-level
United Kingdom

Executive-level, hands-on leadership role owning information security, corporate IT, and IT infrastructure at Fractile, an AI-chip startup. Day to day: set security/IT strategy, protect semiconductor IP, and run cloud, network, endpoint, identity, incident response, DR, governance (ISO 27001/NIST/SOC 2), vendors, and budgets.

AI Cloud Cloud Security Cybersecurity IAM +7 skills
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Fractile Backed by Accel
10 views yesterday

Modelling Engineer

Open 127d UK Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

Modelling Engineer Location: Bristol / London About Fractile Fractile was founded in 2022 on the bet that, eventually, the world's most capable AI systems would be limited in their impact by the time taken to…

AI C++ Firmware Machine Learning
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Fractile
2 days ago

Chief Information Security Officer (CISO)

NewBe an early applicant UKFull-timeC-level
United Kingdom

About Fractile Fractile was founded in 2022 on the bet that, eventually, the world’s most capable AI systems would be limited in their impact by the time taken to produce useful outputs. We bet everything on the…

AI Cloud Cloud Security Cybersecurity IAM +7 skills
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Fractile Backed by Accel
5 views 3 days ago

Infrastructure Software Engineering – Platform & Build

Open 127d UK Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

Infrastructure Platform Engineer at Fractile (an AI inference chip startup) in London: owns CI infrastructure end-to-end, scales a multi-language Bazel monorepo, builds observability/incident response, and manages infrastructure-as-code for hybrid cloud and on-prem. Core stack: Bazel, CI/CD, Terraform/OpenTofu/Pulumi, Prometheus/Grafana, Python/Go/Rust.

AI Automation Bazel CI/CD Cloud +16 skills
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Fractile Backed by Accel
9 views 3 days ago

Manufacturing Operations Technical Programme Manager – Silicon and Packaging

Open 127d UKContract Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

About Fractile Fractile was founded in 2022 on the bet that, eventually, the world’s most capable AI systems would be limited in their impact by the time taken to produce useful outputs. We bet everything on the…

AI Asana Assembly Confluence Jira +3 skills
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Fractile Backed by Accel
11 views 3 days ago

Semiconductor Product Engineer

Open 127d UK Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

About Fractile Fractile was founded in 2022 on the bet that, eventually, the world’s most capable AI systems would be limited in their impact by the time taken to produce useful outputs. We bet everything on the…

AI Cmos JTAG Networking PCIe
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Fractile Backed by Accel
8 views 3 days ago

Semiconductor Product Engineering Team Leader

Open 127d UKLead Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

About Fractile Fractile was founded in 2022 on the bet that, eventually, the world’s most capable AI systems would be limited in their impact by the time taken to produce useful outputs. We bet everything on the…

AI Analytics Automation Cmos Data Analytics +4 skills
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Fractile Backed by Accel
19 views 3 days ago

Semiconductor Test Engineer

Open 127d UK Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

About Fractile Fractile was founded in 2022 on the bet that, eventually, the world’s most capable AI systems would be limited in their impact by the time taken to produce useful outputs. We bet everything on the…

AI Cmos JTAG Networking PCIe
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Fractile Backed by Accel
10 views 3 days ago

Semiconductor Test Engineering Team Leader

Open 127d UKLead Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

About Fractile Fractile was founded in 2022 on the bet that, eventually, the world’s most capable AI systems would be limited in their impact by the time taken to produce useful outputs. We bet everything on the…

AI Analytics Automation Cmos Data Analytics +4 skills
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Fractile Backed by Accel
10 views 3 days ago

Senior Embedded Performance Engineer

Open 127d UKSenior Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

About Fractile Fractile was founded in 2022 on the bet that, eventually, the world’s most capable AI systems would be limited in their impact by the time taken to produce useful outputs. We bet everything on the…

AI Assembly Embedded Software Firmware Machine Learning +2 skills
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Fractile Backed by Accel
8 views 3 days ago

Senior Linux Kernel Driver Engineer

Open 127d UKSenior Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

About Fractile Fractile was founded in 2022 on the bet that, eventually, the world’s most capable AI systems would be limited in their impact by the time taken to produce useful outputs. We bet everything on the…

AI Firmware Linux Machine Learning PCIe +2 skills
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Fractile Backed by Accel
8 views 3 days ago

Senior Logical Design Engineer

Open 127d UKSenior Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

Designs high-performance, power-efficient digital chips for AI inference at Fractile, focusing on RTL development and cross-functional collaboration.

AI Rtl
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Fractile Backed by Accel
7 views 3 days ago

Senior ML Compiler Engineer

Open 127d UKSenior Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

About Fractile Fractile was founded in 2022 on the bet that, eventually, the world’s most capable AI systems would be limited in their impact by the time taken to produce useful outputs. We bet everything on the…

AI C++ LLM Machine Learning
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Fractile Backed by Accel
8 views 3 days ago

Senior/Principal Physical Design Engineer

Open 127d UKPrincipal Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

Senior/Principal Physical Design Engineer at Fractile, responsible for end-to-end ASIC/SoC physical design implementation (floorplanning, placement, CTS, routing, sign-off) using EDA tools like Cadence Innovus, Synopsys Fusion Compiler, and Mentor Graphics Calibre, optimizing PPA metrics and collaborating with cross-functional teams.

AI Automation Cmos HPC Networking +5 skills
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Fractile Backed by Accel
9 views 3 days ago

Processor Architect

Open 127d UK Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

Fractile is hiring a Senior Processor Architect in Bristol to define the architecture of its AI compute engines — ISAs, execution units, memory hierarchies and interconnects — with hands-on performance modelling, spec writing, and pre/post-silicon validation alongside design, verification and physical design teams.

AI GPU Rtl
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Fractile Backed by Accel
4 views 3 days ago

Senior Systems Software Engineer

Open 127d UKSenior Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

Builds the production-critical control chain for Fractile's AI chip racks: firmware and services for rack management, BMC and board/device controllers across bare metal, RTOS and embedded Linux, using C and/or Rust. Covers bring-up, provisioning, telemetry, updates, recovery and security.

AI Embedded Linux Embedded Systems Firmware Linux +5 skills
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Fractile Backed by Accel
17 views 3 days ago

Silicon Infrastructure Engineer

Open 127d UK Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

Designs and maintains Python-based tooling and build systems for silicon EDA workflows, optimizing chip development pipelines and compute infrastructure for AI inference hardware.

AI Ansible Bazel Containerization Docker +7 skills
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Fractile Backed by Accel
14 views 3 days ago

Member of Technical Staff - Security Engineering

Open 95d HybridUK Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

Design and implement security mechanisms for AI hardware control chains, including secure boot, cryptographic key management, and runtime protections across bare metal, RTOS, and Linux.

AI Authentication Cryptography Embedded Linux Firmware +10 skills
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Fractile Backed by Accel
6 views 3 days ago

Engineering Manager - Compilers

Open 93d HybridUKFull-time Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

Engineering Manager - Compilers London or Bristol · Hybrid · Permanent About Fractile Fractile was founded in 2022 on the bet that, eventually, the world’s most capable AI systems would be limited in their impact by…

AI C++ LLM Machine Learning
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Fractile Backed by Accel
8 views 3 days ago

Lead RTL Designer (PPA Experience)

Open 47d UKLead Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United Kingdom

Lead RTL Designer at Fractile, a startup building silicon for fast AI inference. Day to day you architect and write timing-aware datapath RTL, drive PPA (power/performance/area) closure using synthesis and STA feedback, and collaborate with physical design, software and modelling teams on AI accelerator chips.

AI Machine Learning
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