Photos people at TwinStream
TwinStream on cord

TwinStream

Senior IT Systems Administrator

Bristol, UK
Computer and Network Security
A Cyber Security Startup specialising in Cross Domain Solutions.
Active
13 hours ago
Responds to
N/A
Responds in
N/A
Requests
None yet. Be the first one!

Skills & Experience

Job roles: System Administrator
Experience level: Senior, Lead
Core skills considered: Support, Networks, Troubleshooting, Technical support, Linux

Logistics

Base salary: £50K - £60K
Employment type: Permanent
Remote working: Hybrid (up to 2 remote days p/w)
Visa sponsorship: Not available
Security clearance: DV (Developed Vetting)

Job Description

Salary: £50,000 - £60,000
Location: Hybrid working, with 3 days a week onsite in Bristol.
Security Clearance: Must be eligible for DV Clearance

The Role

As a Senior IT Systems Administrator, you’ll take senior operational responsibility for the performance, resilience, maintenance and continual improvement of TwinStream’s IT systems and services, helping ensure they remain secure, reliable and fit for purpose as the business grows.

Working within the strategy, architecture, standards and technical priorities set by the IT Technical Lead, you’ll translate agreed priorities into well-planned and sustainable improvements across the corporate IT estate. This is a hands-on senior role requiring sound technical judgement, leadership of complex technical implementation, resolution of high-impact issues and guidance for colleagues across the IT team.

You’ll operate autonomously within agreed technical guardrails and delegated authority, escalating significant architectural, strategic or cross-estate decisions to the IT Technical Lead.


What You’ll Be Doing

  • Leading the day-to-day management of the operational performance, resilience and lifecycle of cloud services, corporate infrastructure, end-user devices and applications.
  • Implementing, maintaining and recommending improvements to operational standards for identity and access management, Joiner, Mover and Leaver processes, endpoint management and asset management.
  • Leading the technical implementation of configuration changes, automation and system integrations in accordance with agreed architecture, standards and change priorities.
  • Administering and optimising cloud platforms, corporate SaaS applications, collaboration tools and development-support services, escalating material architecture, supplier or licensing decisions where required.
  • Providing senior administration and operational assurance of the corporate network, including routers, switches, wireless services and associated network components.
  • Monitoring service health, capacity, performance and security, identifying trends and taking proactive action to address risks before they affect users.
  • Acting as the senior operational escalation point for complex incidents and problems, coordinating resolution, root-cause analysis and preventative action, and escalating critical or systemic issues to the IT Technical Lead.
  • Planning and coordinating patching, vulnerability remediation and upgrades, balancing operational risk and business priorities within agreed technical and security requirements.
  • Implementing, maintaining and testing backup, recovery and continuity arrangements in support of the disaster recovery approach defined by the IT Technical Lead.
  • Leading technical investigation and escalation of security events and incidents in accordance with agreed procedures, ensuring corrective actions and lessons are followed through.
  • Maintaining the quality of technical documentation, operational procedures, asset information and system records, ensuring they remain accurate and usable.
  • Mentoring colleagues, reviewing implementation approaches for alignment with agreed standards and promoting consistent, high-quality delivery.
  • Identifying and analysing operational and technical improvements, distinguishing between service requests, small works and larger changes, and producing options, effort estimates and recommendations for prioritisation.
  • Building effective relationships with stakeholders, technical partners and suppliers to coordinate technical delivery and resolve operational issues.

What We’re Looking For

We recognise that no one ticks every box. If your experience aligns with many of the requirements below, we’d love to hear from you.

Essential Skills

  • Proven experience in systems administration, infrastructure engineering or a comparable hands-on technical role, with responsibility for complex services or technical delivery
  • A strong track record of managing business-critical IT services, making sound technical recommendations, resolving complex issues and delivering continual improvement, including assessing demand, distinguishing between service requests, small works and larger projects, and undertaking analysis and estimation to support prioritisation
  • Strong practical knowledge of Microsoft 365 administration, optimisation and adoption, with the ability to recommend and implement improvements
  • Strong practical knowledge of identity and access management using Microsoft Entra ID, including SSO, Conditional Access and Identity Governance, with experience applying Zero Trust principles such as least privilege, explicit verification and continuous risk assessment
  • Practical experience managing corporate networks, including firewalls, switching, wireless, VPN, DNS and DHCP, with strong network troubleshooting skills
  • Experience using PowerShell or comparable scripting tools to automate administration, improve consistency and reduce manual effort
  • Strong analytical and troubleshooting skills, with the ability to assess risk and communicate technical options and recommendations clearly to technical and non-technical stakeholders
  • Able to work autonomously, prioritise competing demands, exercise sound judgement, mentor colleagues and provide technical guidance
  • Experience managing end-user devices across Windows, Linux and mobile platforms, including endpoint management, secure configuration, vulnerability remediation and information-protection controls
  • Experience administering and optimising corporate SaaS applications and collaboration or development-support tools
  • Experience monitoring service health, capacity, performance and security, and planning or assuring patching, backup, recovery and continuity arrangements
  • Experience supporting security monitoring and incident response, including the use of SIEM tooling, escalation, root-cause analysis and preventative action
  • A practical understanding of IT service management, including incident, problem, change and asset management
  • Experience creating and maintaining clear technical documentation, operational procedures, asset information and system records
  • Experience working effectively with technology suppliers and considering licensing, support and service-management requirements#

Desirable Skills

  • Hands-on experience with Intune, Landscape, JumpCloud, Atlassian products or comparable administration tools
  • ITIL Foundation or an equivalent service-management qualification
  • Experience with automation and Infrastructure as Code
  • Experience of cloud infrastructure such as AWS and Azure.
  • Experience working within ISO/IEC 27001, Cyber Essentials Plus or UK public-sector environments
  • Experience contributing to agile delivery and developing IT policies, standards and procedures

Company Benefits

There are many great reasons to join our team!

Pension Plan

Secure your future with our competitive pension plan that offers an 8% employer contribution.

Private Medical Healthcare

Your health and well-being are our top priorities. Enjoy comprehensive private medical healthcare, which includes dental and optical care for you and your family.

Learning and Development

Your career is in your hands. We empower you to take charge of your own development, giving you the autonomy to shape your growth. To support this, everyone receives an annual training budget of £1,000.

Flexible Working

We understand the importance of balancing work and life. Flexibility is not just a policy for us; it is part of our culture. We are passionate about helping you seamlessly integrate work with your home life.

Electric Vehicle Scheme

Drive sustainability forward with our electric vehicle leasing scheme. You can take advantage of this initiative through a convenient salary sacrifice program.

Holidays

Enjoy annual leave of 25 days, plus bank holidays, allowing you to recharge and spend time on what matters most.

Team Events

We love celebrating our achievements! In addition to our quarterly meetings, you can look forward to our Christmas and summer parties—opportunities to relax, reflect, and have fun as a team.

Additional Benefits

We provide life assurance for your peace of mind and a cycle-to-work scheme to support your health and sustainability goals.

Interview Process

1. Hiring Manager
2. Co-founder
3. CPO
Anthony on cord
Recruitment Manager
Active 13 hours ago
Anthony on cord
Senior IT Systems Administrator at TwinStream
Message Anthony  ·  Position recently posted

Talk directly
to who's hiring

cord intros you to the companies worth joining, from seed to enterprise.

Everything you need to find work

Surface every relevant position, direct message the people hiring and manage all your applications in one place.

Get started

Every position in one place

We index the web for open positions that might be relevant to you and bring them all in one place.

Positions you might like split into tabs based on their type

Direct messaging

No more CV blackholes. Message people hiring directly and see their activity live on cord.

A sent message to a hiring manager
A board of positions in different stages

Application management

Manage all your applications and interviews in one place.

Advanced insights

Know your worth and see how you compare with other applicants.

Visualisation of a profile match score for a position and score comparison with other applicants

Direct.
Transparent.
Human.

On cord you can message people hiring directly, see when they were last active, how responsive they are and access transparent information that you wouldn't be able to find anywhere else.

Photos people at Starling BankPhotos people at Starling BankPhotos people at Starling BankPhotos people at Starling BankPhotos people at Starling Bank
Starling Bank on cord

Starling Bank

Full Stack Engineer (ML Ops)

London, UK
FinTech · Banking · Finance
A better bank for everyone
Active
over 6 months ago
Responds to
0% of requests
Responds in
1h 55m
Requests
7 pending

Skills & Experience

Job roles: Full Stack
Experience level: Mid, Senior
Core skills considered: Java, React, Redux, AWS, JavaScript

Logistics

Base salary: £70K - £110K
Employment type: Permanent
Remote working: Hybrid (up to 2 remote days p/w)
Visa sponsorship: Not available

Job Description

Starling is the UK’s first and leading digital bank on a mission to fix banking! Our vision is fast technology, fair service, and honest values. All at the tap of a phone, all the time.

Starling is the UK’s first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way.

We’re a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We’re a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices.

Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will find support in your team and from across the business, we are in this together!

The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: From building things, designing, discovering, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best possible results for our customers. Our purpose is underpinned by five Starling values: Listen, Keep It Simple, Do The Right Thing, Own It, and Aim For Greatness.

Hybrid Working

We have a Hybrid approach to working here at Starling - our preference is that you're located within a commutable distance of one of our offices so that we're able to interact and collaborate in person. We don't like to mandate how much you visit the office and work from home, that's to be agreed upon between you and your manager.

Our Data Environment

Our Data teams are excited about the value of data within the business, powers our product decisions to improve things for our customers and enhance effective and agile decision making, regardless of what their primary tech stack may be. Hear from the team in our latest blogs or our case studies with Women in Tech.

We are looking for talented data professionals at all levels to join the team. We value people being engaged and caring about customers, caring about the code they write and the contribution they make to Starling. People with a broad ability to apply themselves to a multitude of problems and challenges, who can work across teams do great things here at Starling, to continue changing banking for good.

Requirements

We have built our entire banking platform in house and mostly in Java. We are looking for people who want to work on building the tooling that is used by our engineers on a daily basis.

We are looking for people who are truly full stack, and are as comfortable polishing their javascript front end as they are debugging the innards of their java applications database interactions, or standing up infrastructure with terraform. We are looking for people who can:

  • Design REST apis.
  • Code backend services, ideally using Java, or another other server side compiled language.
  • Develop modern front ends, ideally using React and Redux.
  • Get their code into the cloud and support it there, ideally on AWS.
  • Believe in clean coding, simple solutions, automated testing and continuous deployment.
  • Like to take ownership of a feature from the original idea through to live.
  • Think (like us) that a small number of empowered developers is the right way to deliver software.

Company Benefits

  • 33 days holiday (including flexible bank holidays)
  • An extra day’s holiday for your birthday
  • 16 hours paid volunteering time a year
  • Part-time and/or flexible hours available for most roles
  • Salary sacrifice, company enhanced pension scheme
  • Life insurance at 4x your salary
  • Hybrid/remote working
  • Private Medical Insurance with VitalityHealth including mental health support and cancer care. Partner benefits include discounts with Waitrose, Mr&Mrs Smith and Peloton
  • Generous family-friendly policies
  • Varied social groups set up and run by our employees
  • Perkbox membership giving access to retail discounts, a wellness platform for physical and mental health, and weekly free and boosted perks
  • Access to initiatives like Cycle to Work, Salary Sacrificed Gym partnerships and Electric Vehicle (EV) leasing

Full details are available on our careers site

Interview Process

Interviewing is a two way process and we want you to have the time and opportunity to get to know us, as much as we are getting to know you! Our interviews are conversational and we want to get the best from you, so come with questions and be curious. In general you can expect the below, following a chat with one of our Talent Team:

  • Stage 1 - 30 mins with one of the team
  • Stage 2 - Take home challenge
  • Stage 3 - 90 mins technical interview with two team members
  • Stage 3 - 45 min final with an executive and a member of the people team
Alex Yeates on cord
Message Alex Yeates at Starling Bank
Typically responds in an hour

What people are saying

2,000+

users joining every week

Oliver on cord

Oliver

Software Engineering Consultant
It's really easy to use, has a solid selection of jobs, and makes it helpful to direct message companies. The platform seems to offer a good range of opportunities while keeping the process simple and convenient.
November, 2025
David on cord

David

Lead Software Engineer
The platform allows you to create a professional CV, making the setup process simple and polished. The internal chat also provides an easy way to directly contact hiring companies, which makes communication much more efficient.
November, 2025
40,000+

open positions

Nicolae on cord

Nicolae

Senior Full Stack Developer
It is a great platform if you are looking for a job. It makes the search process straight forward and gives you access to solid opportunities.
November, 2025
3 million+

messages exchanged so far

Nicolae on cord

Nicolae

Senior Full Stack Developer
It is a great platform if you are looking for a job. It makes the search process straight forward and gives you access to solid opportunities.
November, 2025
82.87%

response rate from companies

Aarambha on cord

Aarambha

Associate Software Engineer
Absolutely amazing idea, the ability to see which recruiters are active makes finding opportunities very quick. There is a form of transparency built into the website that lacks in any other job searching platform.
August, 2025
Adam on cord

Adam

Senior Engineer
cord was great. Clean UI, easy to browse, and the data feature made it a breeze to quickly check whether my profile would match up well with a particular role. The messaging system made it easy to approach companies but also filter out unwanted requests.
August, 2025
4.6

score on Trustpilot

Talk directly to the people that matter

Join the hundred of thousands of people using cord to find work

Get started
 on cord
 on cord
 on cord
 on cord
 on cord
+412 joined last week
Moved to your Not right positions