Site Reliability - Member of Technical Staff
Callosum —London
- £101,000 - £192,000 a year
- Full-time
Quick apply
Forensic Road Traffic Accident Engineer
Burgoynes —Stevenage
- Engineering
- Bachelor's degree
- Relocation assistance
- Annual leave
Senior Product Engineer (TS/NodeJS/Vue)
n8n —London
- £72,800 - £190,000 a year
- Full-time
- Remote
- Life insurance
Network Engineer
Sectigo —Manchester
- £55,000 - £62,000 a year
- Full-time
- Remote
- Computer Science
- Up to 50% travel
- Bachelor's degree
Quick apply
Network Engineer III - Backbone (Hybrid, London)
CrowdStrike —London
- Full-time
- AI
- Leadership
Senior PeopleOps Generalist
Harmonic Security, Inc —London
- £92,760 - £111,236 a year
- Full-time
- Hybrid work
- Recruiting
- Annual leave
Quick apply
IT Systems Support Engineer
Smart Pension —London
- Hybrid work
- Google Suite
- Continuous improvement
- Communication skills
- Employee assistance programme
- Employee discount
Traffic Signals Engineer - Leeds
SWARCO Group —Featherstone
- Full-time
- Organisational skills
- Employee assistance programme
- Employee discount
Staff Frontend Engineer (React Native / Mobile)
Feeld —London
- £80,000 - £130,000 a year
- Full-time
- Remote
- Mentoring
- Leadership
- Annual leave
- Flexible schedule
Quick apply
Assistant Traffic Engineer - Level 3
Bristol City Council —Bristol
- £32,061 - £34,434 a year
- Full-time
- Hybrid work
- Annual leave
- Flexitime
Air Traffic Engineer
Newcastle International Airport Ltd —Newcastle upon Tyne
- Maintenance
- Mentoring
- Training & development
- Free parking
- Annual leave
20h
Junior Software Engineer
Blackhawk Network —Hemel Hempstead
- Full-time
- Computer Science
- Java
- Bachelor's degree
- Annual leave
- Employee assistance programme
Graduate Civil Engineer
Langan Engineering & Environmental Services —London
- Weekend availability
- Civil engineering
- Engineering
- Bachelor's degree
- Annual leave
- Flexible schedule
Motorway Heavy Recovery Technician - Up to 60-Tonne Recovery Operations
Balfour Beatty —Dartford
- Weekend availability
- Hybrid work
- Maintenance
- Annual leave
Engineer - Platform
Trainline —London
- £60,000 - £70,000 a year
- Full-time
- Hybrid work
- AWS
- Scripting
- AI
Senior Platform Engineer
Monzo —London
- £95,000 - £130,000 a year
- Remote
- Flexible schedule
Network Engineer - Physical Network Infra - London, UK
TikTok —London
- Computer Science
- Bachelor's degree
- Travel
Resource Traffic Manager
AtkinsRéalis —Birmingham
- Full-time
- Hybrid work
- Organisational skills
Senior Infrastructure Engineer
Pax8 Global —Farnborough
- £45,000 - £65,000 a year
- Full-time
- Hybrid work
- English
- Mentoring
- AI
- Free parking
Air Traffic Control Officer
Babcock International —Peterborough
- £67,000 a year
- Weekend availability
- Microsoft Word
- Computer literacy
- Mentoring
- Annual leave

I want to receive the latest job alerts for traffic engineer in eng

By signing in to your account, you agree to SimplyHired's Terms of Service and consent to our Cookie and Privacy Policy.

Site Reliability - Member of Technical Staff

Callosum
London

Quick apply

Job details

Full-time
£101,000 - £192,000 a year

Benefits

UK visa sponsorship
Private medical insurance

Qualifications

CI/CD
Incident response
CI/CD pipelines
Infrastructure provisioning automation

Full job description

About Us

We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity.

Callosum is the Intelligent Systems Company. We believe the next generation of AI won't be defined by any single model or chip, but by intelligent systems in which hardware and intelligence co-evolve. We are building the infrastructure that unifies heterogeneous compute across the full stack. This opens a new axis of scaling intelligence: a dynamic system that tailors itself to what each workload actually needs, whether that's speed, cost, precision, or whatever unit comes next.

The last era scaled on a different bet: one bigger model, more of the same chip, more data. That bet is running into structural limits. Frontier models offer extraordinary capability at unsustainable cost, one that today's monolithic infrastructure was never designed to serve.

Our founding principle is that intelligence comes from many specialised systems working together, not from any single component. We build the software orchestration layer that co-evolves models, workflows and silicon into one system, delivering inference tailored to every workload, and demonstrating orders-of-magnitude leaps in capability and cost.

Because our software spans the full stack, our engineering team works directly with heterogeneous accelerators and frontier silicon, including Cerebras, d-Matrix, Intel, NVIDIA, AMD, Normal Computing, Tenstorrent, GreatSky, and Mixx. We are not stopping at today's chips: each new generation of silicon unlocks algorithms that couldn't run before, and we intend to be first to them, every time. If we get it right, it will belong to everyone building on it - not to any single vendor.

In our latest funding round, we raised $100M, led by Atomico with participation from Plural, DCVC and the UK Sovereign AI Fund’s first investment. With this, we are building the infrastructure for the next era of intelligence.

We are engineers and scientists based in London, working across the full depth of the stack. We are curious, intellectually honest, and building what doesn't exist yet. If you thrive on uncharted territory and are energised by the scale of the challenge, we'd love to hear from you.

About the Role

Our platform is the production system our customers route real traffic through. When it degrades, their product degrades. You will own its operational health end-to-end: SLOs, observability, incident response, deployment discipline, and capacity planning across heterogeneous compute backends. As the platform scales to millions of concurrent requests across heterogeneous compute, the work shifts from building the operational foundation to defending it under conditions most teams never encounter.

You'll define "production-grade" means for a platform at the centre of a fast-growing company, and own it end to end. The reliability practice is yours to build. You will work closely with the platform team, setting the technical direction. You will work closely with the hardware and orchestration teams to expose heterogeneous backends reliably through the platform.

Who You'll Build

Service-level objectives, monitoring, alerting, and observability
On-call and incident response: runbooks, escalation, blameless postmortems, and follow-through
Capacity planning and the operational side of running across heterogeneous compute backends

What You Bring

Strong SRE or production-engineering background running customer-facing systems at scale
Fluency with modern operational tooling: observability stacks, container orchestration, infrastructure-as-code, CI/CD
Experience owning incident response and driving reliability improvements.
Compliance execution experience

What Sets You Apart

Open-source contributions to relevant infrastructure, or production systems whose scale and complexity you can speak to in detail
Early-stage and AI-native company experience

What We Offer

Competitive Salary, determined by skills and experience
Equity & Ownership
Private healthcare
We offer Visa sponsorship and relocation benefits to hire the best in the world
We work in person at our London office. You'll have the tools, space and setup to do your best work, and if you have specific needs, just tell us

We're committed to building an inclusive workplace where everyone feels welcome, and believe in equal opportunities for all.

Compensation Range: £101K - £192K

Quick apply

Refine Your Search

traffic engineer jobs in eng

Site Reliability - Member of Technical Staff

Forensic Road Traffic Accident Engineer

Senior Product Engineer (TS/NodeJS/Vue)

Network Engineer

Network Engineer III - Backbone (Hybrid, London)

Senior PeopleOps Generalist

IT Systems Support Engineer

Traffic Signals Engineer - Leeds

Staff Frontend Engineer (React Native / Mobile)

Assistant Traffic Engineer - Level 3

Air Traffic Engineer

Junior Software Engineer

Graduate Civil Engineer

Motorway Heavy Recovery Technician - Up to 60-Tonne Recovery Operations

Engineer - Platform

Senior Platform Engineer

Network Engineer - Physical Network Infra - London, UK

Resource Traffic Manager

Senior Infrastructure Engineer

Air Traffic Control Officer

I want to receive the latest job alerts for traffic engineer in eng

Related Searches

Explore jobs in more locations

About Us

About the Role

Who You'll Build

What You Bring

What Sets You Apart

What We Offer

Jobseeker tools

Employer Tools

Browse

Stay Connected