Head of Infrastructure Job at Xelix (London)

Head of Infrastructure

At Optiver we are hiring the Head of Infrastructure (APAC) — a senior engineerin...

Location

Australia , Sydney

Salary:

Not provided

Optiver

Expiration Date

Until further notice

Requirements

Strong engineering pedigree: hands-on technical experience and proven architecture/engineering leadership – preferably in infrastructure engineering and/or latency-sensitive systems
Experience leading engineering functions at Head/Director level, defining technical roadmaps, establishing standards and growing engineering teams
Operational judgement: able to balance engineering quality with operational reliability and business timelines
Executive-level stakeholder skills and the ability to represent the region in global technical discussions
Experience operating in a matrix organisation and coordinating delivery from globally managed and highly distributed teams across multiple countries and timezones
A builder mindset: a record of driving standardisation, automation and turning bespoke solutions into durable engineering practices
Willingness to travel: this role requires approximately 4 weeks of travel per year across the US, Europe, and APAC

Job Responsibility

Act as the APAC Infrastructure leader: own APAC outcomes, escalations, decisions and cross-team delivery while partnering with the APAC CTO and Global Head of Infrastructure
Ensure coherent regional delivery from globally managed teams: define and run the operating cadence, set and enforce SLAs/OKRs, remove cross-team blockers, and coordinate delivery across time zones and geographies
Translate strategy into delivery: convert firm and APAC business priorities into clear infrastructure outcomes, term plans and measurable delivery commitments
Be the escalation owner: own APAC-level incident and change escalation, shape postmortems and remediation, and ensure robust assurance over change & configuration controls and site resilience
Manage the APAC operating rhythm & org leadership: set cadence, delegate effectively, hold leaders accountable, and continuously improve the region’s practices so work becomes repeatable and handover to BAU is clear
Partner with other regional leads: work with EU, US and other regional leads to converge regional processes into global ones, share best practices, highlight regional constraints, and ensure global standards and tooling are fit-for-purpose in APAC
Mentor and develop senior technical talent: coach senior engineers and engineering managers on leadership, operations and communication
promote psychological safety and an engineering culture of ownership and long-term thinking
Build and maintain durable stakeholder relationships: engage business, engineering and global counterparts
provide executive-ready communication of status, risk, decisions and asks

What we offer

A performance-based bonus structure unmatched anywhere in the industry. We combine our profits across desks, teams and offices into a global profit pool, fostering a truly collaborative environment
The chance to work alongside diverse and intelligent peers in a rewarding environment
Training, mentorship and personal development opportunities
Daily breakfast, lunch and an in-house barista
Gym membership plus weekly in-house chair massages
Regular social events, including a company trip every two years
Guided relocation, a competitive relocation package and visa sponsorship where necessary

Fulltime

Head of Infrastructure

At Xelix, we work with some of the world’s largest companies to automate and str...

Location

United Kingdom , London

Salary:

Not provided

Xelix

Expiration Date

Until further notice

Requirements

8+ years in infrastructure, platform, or SRE roles
AWS Certified Solutions Architect – Professional
Prior experience scaling production systems in a growing company
Ability to operate production systems under pressure
Deep hands-on experience with the AWS cloud platform
Strong background in reliability, observability, and incident management
Experience leading or mentoring engineers

Job Responsibility

Platform Strategy & Architecture: Own the long-term platform and infrastructure strategy
Design and evolve cloud architecture to support scale, resilience, and performance
Set standards for infrastructure, CI/CD, environments, and observability
Make architectural decisions and trade-offs
Developer Experience (DevEx): Provide infrastructure for the development team to code, test and deploy efficiently
Advise during design sessions to help engineers pick the right solutions for projects
Reliability & Operations: Own production reliability, uptime, and incident response
Define and enforce SLAs and SREs
Lead incident response and post-incident reviews
Ensure monitoring, alerting, and on-call practices are effective and sustainable

What we offer

27 days of annual leave (including 3 days Christmas closing) which increases up to 3 days based on tenure, with the option to roll over, buy or sell up to 3 days
Hybrid working with one day a week from our dog-friendly Hoxton office
On-site gym and cycle to work scheme
Employee discount at over 100 retailers
Comprehensive private medical & dental cover with Vitality
Enhanced parental leave pay
Learning & development culture – £1,000 personal annual budget
We’re carbon-neutral and are working towards ambitious carbon reduction goals
Lots of team socials & activities
Annual team retreat

Fulltime

Head of Infrastructure

I am recruiting for a Head of Infrastructure position that will require travel t...

Location

United Kingdom , London

Salary:

75000.00 - 90000.00 GBP / Year

Hunter Selection | B Corp™

Expiration Date

Until further notice

Requirements

Current hands on technical ability essential
Experience with high growth and acquisitions is highly desirable
Full UK driving license required
Managing Hybrid Cloud and On Prem environments
Management of third party vendors and MSPs
Networking
Cyber Security
Identity Access Management
Onboarding and offboarding acquisitions
Oversight and optimisation of budgets

Job Responsibility

Accountable for Infrastructure, User support, Cyber Security standards, Cloud and On Prem hybrid environment, Disaster recovery, service delivery, Governance, Risk and Compliance
Act as the primary technical authority and provide clear instruction to reports and stakeholders
Implementation of ISO27001 standards
Ensuring all entities meet Cyber Essentials Plus
Continuous maintenance and improvement focus
Stabilise, standardise and implement Infrastructure across the business
Post Acquisition Integration, ensuring operational resilience at all times

What we offer

25 days holiday plus bank holidays
Car allowance
Annual bonus scheme

Fulltime

Head of Infrastructure

We are looking for an experienced infrastructure leader to own and scale the tec...

Location

United States , New York City; San Francisco Bay Area

Salary:

220000.00 - 275000.00 USD / Year

Metronome

Expiration Date

Until further notice

Requirements

8+ years of infrastructure engineering experience including managing engineering managers and driving cross-organizational initiatives
Track record building and scaling engineering teams including hiring, mentoring, and creating processes that support rapid organizational growth
Proven track record scaling critical infrastructure at high-growth companies
Deep expertise in modern infrastructure technologies including streaming data platforms, distributed systems architecture, cloud platforms, observability stacks, and infrastructure-as-code
Strong operational excellence background including SLI/SLO frameworks, incident management, capacity planning, and proactive monitoring systems
Experience partnering with product engineering teams as an enabler, balancing infrastructure needs with product velocity and business requirements
Excellent communication and technical judgment with experience presenting technical concepts to stakeholders and deep understanding of how infrastructure decisions impact performance, productivity, and business outcomes

Job Responsibility

Lead and grow a team of 15+ infrastructure engineers, managing both engineering managers and senior individual contributors while providing mentorship, career development, and technical guidance across multiple teams
Build and scale the infrastructure organization structure, defining team responsibilities, establishing clear ownership boundaries, and ensuring effective coordination between infrastructure teams and product engineering groups
Own the technical roadmap for Metronome's infrastructure layer as we scale to support larger scale and evolve from commodity solutions to specialized streaming infrastructure
Partner with engineering leadership to balance infrastructure investments with product development needs, serving as an enabler for product engineering teams
Own the end-to-end reliability and performance of real-time systems that process billions of events and millions of invoices with enterprise-grade uptime, latency and correctness requirements
Maintain and enhance comprehensive monitoring, alerting, and observability across all infrastructure services
Lead incident response and post-mortem processes, ensuring systematic improvements to prevent recurrence and drive operational excellence practices
Architect infrastructure solutions that support exponential customer growth and increasingly complex technical requirements
Foster a culture of operational excellence where engineers take ownership of system reliability and customer experience
Drive hiring and team scaling as infrastructure demands grow with business expansion

What we offer

Excellent medical, dental, vision, and life insurance coverage, including a One Medical membership
Paid parental leave
FSA (Flexible spending account)
Retirement planning - Traditional and ROTH 401(k)
Flexible time off
Employee assistance program (mental health benefits)
Culture where personal growth is highly valued
Market-benched equity
Sales incentive pay (for eligible roles)

Fulltime

Head Of Infrastructure And Ai Systems

Radix is building the most trusted data and analytics platform in multifamily. J...

Location

United States , Scottsdale

Salary:

Not provided

Radix (AZ)

Expiration Date

Until further notice

Requirements

Brings 10 or more years of experience in platform, infrastructure, or systems engineering, with deep exposure to operating complex production systems rather than only building them
Demonstrates deep expertise in AWS core services, along with hands on experience in Azure, including identity federation and cross cloud integration patterns
Possesses production level experience with Kubernetes and strong proficiency in Databricks, including cluster management, scaling, security, Spark tuning, and data governance
Treats infrastructure as code as a default practice, with Terraform preferred, and builds robust observability systems across metrics, tracing, and logging with a proactive mindset
Thinks in systems, maintaining a full stack perspective from DNS through application layers to agent behavior, while identifying risks and anti patterns early
Operates with a strong Day 2 mindset, embedding reliability, operational readiness, and security as core design principles from the outset
Has real world experience integrating AI and LLM systems into production environments, with a deep understanding of agent safety, trust boundaries, observability, and failure modes
Is motivated by the challenge of enabling reliable collaboration between human engineers and AI agents, while staying current on the evolving AI infrastructure landscape
Exhibits curiosity, resilience, and adaptability when navigating ambiguity and working within fast moving, evolving systems
Thrives in high growth startup environments with strong ownership, operating with autonomy and transparency while leading through hands on execution

Job Responsibility

Architect and build the Agent Harness, the system of controls, context, and guardrails that govern how AI agents are deployed, monitored, constrained, and evolved across the platform
Define and enforce operational contracts between human engineers and AI agents, including access boundaries, audit trails, rollback mechanisms, and trust boundaries
Translate desired agent outcomes into concrete infrastructure requirements, including defining what context agents require, what systems they can interact with, and how failures are handled
Own the reliability and observability of agent driven workflows end to end, from initial invocation through downstream system impact
Evaluate, select, and integrate LLM tooling, agent orchestration frameworks, and emerging AI native infrastructure primitives as the ecosystem evolves
Own and operate all cloud infrastructure across AWS as primary and Azure, including compute, networking, storage, security posture, and cross cloud integration patterns
Architect, operate, and continuously improve Kubernetes clusters at production scale, including workload isolation, autoscaling strategies, cost optimization, and multi environment lifecycle management
Own and evolve the Databricks environment, including cluster configuration, job orchestration, access controls, and data governance, while defining clear infrastructure contracts between data engineering and the broader platform
Drive infrastructure as code practices with Terraform preferred and with a strong emphasis on repeatability, auditability, and operational simplicity
Ensure infrastructure is appropriately sized and cost efficient, intentionally architected for current team needs rather than speculative future scale

What we offer

Medical, dental and vision coverage designed to support your wellbeing
Uncapped Paid Time Off
Pre-IPO Equity
Performance Bonus
Learn From the Best
Build Category-Defining Products

Fulltime

Head of Infrastructure Communications

We’re looking for a senior communications leader to shape how the world understa...

Location

United States , San Francisco

Salary:

387000.00 - 430000.00 USD / Year

OpenAI

Expiration Date

Until further notice

Requirements

12+ years of professional communications experience in infrastructure, cloud, semiconductors, energy, or large-scale technology platforms
Deep familiarity with at least one of the following and strong working knowledge across all: compute infrastructure, chip development, data centers, or energy systems
A strong track record of translating highly technical engineering work into credible narratives for broad audiences
Experience owning communications for large-scale, capital-intensive, or globally significant platforms or programs
Strong partnership instincts with engineering, finance, policy, and executive leadership
Ability to operate with clarity and confidence in high-stakes, fast-moving, and highly visible environments
Comfortable shaping long-range strategic narratives and executing precise milestone communications
Strong judgment, accountability, and composure in complex and sensitive moments
Energized by helping the world understand the real-world systems that make advanced AI possible
Motivated by building trust in the physical foundations of transformative technology

Job Responsibility

Lead infrastructure-related communications across OpenAI
Translate complex infrastructure and engineering work into clear, compelling messaging for media, analysts, policymakers, and public audiences
Partner closely with Infrastructure leadership and the Finance team on strategy, milestones, and investor-relevant messaging
Partner with Policy Communications on sovereign AI, national-scale infrastructure, and government alignment
Prepare infrastructure leaders as spokespeople and trusted expert voices

What we offer

Medical, dental, and vision insurance for you and your family, with employer contributions to Health Savings Accounts
Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses (parking and transit)
401(k) retirement plan with employer match
Paid parental leave (up to 24 weeks for birth parents and 20 weeks for non-birthing parents), plus paid medical and caregiver leave (up to 8 weeks)
Paid time off: flexible PTO for exempt employees and up to 15 days annually for non-exempt employees
13+ paid company holidays, and multiple paid coordinated company office closures throughout the year for focus and recharge, plus paid sick or safe time (1 hour per 30 hours worked, or more, as required by applicable state or local law)
Mental health and wellness support
Employer-paid basic life and disability coverage
Annual learning and development stipend to fuel your professional growth
Daily meals in our offices, and meal delivery credits as eligible

Fulltime

Head of Infrastructure Accounting

Perplexity is looking for an experienced R&D Accounting Manager to join our team...

Location

United States , San Francisco

Salary:

170000.00 - 220000.00 USD / Year

Perplexity

Expiration Date

Until further notice

Requirements

8+ years of progressive accounting experience, preferably a combination of public accounting and operational experience at a technology company
Strong understanding of US GAAP, particularly ASC 350 and ASC 220
A builder mindset that enjoys drawing the blueprint for automated, reliable and scalable processes
Best-in-class attention to detail and unwavering commitment to accuracy in an ever-changing business environment
Strong interpersonal and communication skills as demonstrated by the ability to partner with internal and external stakeholders across various parts of the business on complex topics
Strong understanding of AI development and platform infrastructure landscape
CPA or CA required
Experience with NetSuite preferred

Job Responsibility

Own the detailed review of, and financial reporting for, infrastructure (incl. AI models) costs to support a timely and accurate month-end close
Drive improvements in the quality and accuracy of infrastructure-related reporting by working cross-functionally with internal stakeholders and infrastructure partners to improve the reliability of data and ensure the accuracy of vendor billing
Develop, document and maintain the process for capitalizing internally developed software in accordance with ASC 350
Build scalable processes and drive automation for infrastructure accounting and the capitalization of internally developed software to support the rapid growth of the business
Engage in technical accounting research to ensure the correct treatment of complex arrangements
Own the credit and refund processes with infrastructure partners to ensure contractual SLA performance and pricing terms are met
Work closely with cross-functional partners in Strategic Finance, Product, Data and Engineering to remain informed on infra-related initiatives and to accurately determine capitalizable projects, features, etc.
Support the audit preparation process including policy/memo writing, compiling supporting documentation, reconciliations and schedules, and delivering requests in a timely manner

What we offer

Offers Equity
Full-time U.S. employees enjoy a comprehensive benefits program including equity, health, dental, vision, retirement, fitness, commuter and dependent care accounts, and more
Full-time employees outside the U.S. enjoy a comprehensive benefits program tailored to their region of residence

Fulltime

Head of Infrastructure Services

We are currently recruiting for an experienced Head of Infrastructure Services t...

Location

United Kingdom , London

Salary:

Not provided

Transact

Expiration Date

Until further notice

Requirements

Minimum of 5 years financial services experience
Strong people manager
Managed an infrastructure team within a financial services environment
Experience establishing and delivering automated monitoring and response environments
Experience managing and delivering change into all aspects of on-prem and cloud-based infrastructure services – Network, voice, server, OS, virtual, database, app delivery, windows/linux OS, Azure, 365, firewalls, etc.
Experience delivering security change work – PAM, Perimeter controls, zero trust, IPS, XDR services, etc.
Ability to interact confidently at all levels
Comfortable being hands on whilst having managerial oversight
Driven, passionate, and personable
Genuine commitment to supporting and developing others

Job Responsibility

Development and delivery of Infrastructure Strategy
Operational running of the Infrastructure environment
People management of the infrastructure team
Owner of all app and capability services delivered from the infrastructure space (finance, OR, Risk, Audit, strategy, operations, lifecycle management, continuous improvement, vendor management, stakeholder management, etc.)
Part of the Technology Management leadership and responsible for supporting development of Technology Strategy, Technology people development across the business
To support and enable the programme management team in delivery of all change work
To embed a mindset of risk management across all services and to ensure that all aspects of risk is appropriately managed and mitigated
Support the development of appropriate governance and process to drive all aspects of Technology forward
To ensure that all aspects of Infrastructure services are designed and run to meet architecture standards which include scalable, efficient, resilient by design
To establish appropriate measurements across all aspects of infrastructure (people, tech and governance) to drive continuous improvement

What we offer

Company discretionary bonus
Excellent pension contributions
Attractive staff share scheme
BUPA health insurance
Buying and selling of annual leave
Sponsorship of relevant professional qualifications

Fulltime

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