Lead Infrastructure Architect at Tandem Bank

London, England, United Kingdom

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£60,000 – £75,000Compensation

Senior (5 to 8 years), Expert & Leadership (9+ years)Experience Level

Full TimeJob Type

UnknownVisa

Banking, FintechIndustries

Requirements

IT degree or equivalent industry experience (demonstrable experience in senior infrastructure or architectural roles)
Strong technical leadership and stakeholder communication skills — able to explain complex concepts to non-technical audiences
Proven hands-on experience with networking, network design, and security technologies (Palo Alto Firewall, Juniper Switches, VLAN, VPN, routing, WiFi)
Expertise in Windows Server, Active Directory, Group Policy, PowerShell, and virtualisation technologies (VMware, Hyper-V, Azure)
Strong background in Microsoft 365 administration and Azure AD management
Experience with Backup and DR solutions (Veeam, Azure, MS Backup)
Strong understanding of infrastructure monitoring, automation, and configuration management
Excellent documentation and architectural design skills
Proven experience working to security and compliance frameworks (NIST, CIS, RBAC, IDAM)
Desirable: Experience with Intune, Defender, and Microsoft Compliance solutions

Responsibilities

Define, design, and maintain enterprise infrastructure architecture across on-premise and cloud environments (Palo Alto SASE, Azure, VMware, Hyper-V)
Drive the modernisation and integration of legacy infrastructure into a unified, secure, and scalable platform
Own and maintain the infrastructure roadmap, ensuring alignment with security, compliance, and business objectives
Provide technical leadership and mentoring to a team of network and systems engineers
Act as the final escalation point for complex infrastructure issues, ensuring stability and reliability
Collaborate with the Information Security team to embed security best practices (NIST, CIS Benchmarks, RBAC, IDAM) into design and operations
Partner with third-party vendors to ensure service continuity, value, and architectural integrity
Lead on documentation, governance, and standards for infrastructure design and configuration
Conduct on-site reviews and audits to ensure quality and compliance across environments

Skills

Key technologies and capabilities for this role

Infrastructure ArchitectureAzureMicrosoft 365IntuneDefenderComplianceWANLANWiFiNetwork EngineeringInformation SecurityHybrid CloudActive Directory

Questions & Answers

Common questions about this position

What is the salary and bonus for the Lead Infrastructure Architect role?

The salary range is £60,000 - £75,000 with up to 20% bonus and benefits.

Is this a remote or hybrid position, and where is it located?

This is a hybrid role based in London (Holborn).

What are the essential skills required for this position?

This information is not specified in the job description.

What is the company culture like at Tandem Bank?

Tandem is guided by values of Brave, Enterprising, Simple, and Together (BEST), with a 500-strong team focused on collaboration, innovation, and delivering a greener future.

What does the team structure look like for this role?

You'll join a team of talented Network and Infrastructure Engineers, reporting to the Infrastructure Manager, and work closely with Information Security and Network Engineering teams.

Tandem Bank

Digital bank offering green financial solutions

About Tandem Bank

Tandem Bank provides digital financial services with a focus on environmentally friendly solutions. It offers a variety of products including personal loans, home loans, mortgages, car finance, and savings accounts, catering to individuals in the UK. The bank's approach to lending emphasizes green initiatives, aiming to minimize the environmental impact of its customers. Tandem generates revenue through interest on loans and fees from savings products. What sets Tandem apart from other banks is its strong commitment to sustainability, demonstrated by financing significant CO2 reductions and collaborating with partners like Oplo and Allium to enhance its green offerings. The goal of Tandem Bank is to provide fair financial solutions while promoting environmental responsibility.

Blackpool, United KingdomHeadquarters

2013Year Founded

$164.3MTotal Funding

GROWTH_EQUITY_VCCompany Stage

Fintech, Social Impact, Financial ServicesIndustries

201-500Employees

Benefits

Paid Vacation

Health Insurance

401(k) Retirement Plan

401(k) Company Match

Flexible Work Hours

Hybrid Work Options

Risks

Competition from digital banks like Monzo and Starling Bank is intensifying.

Regulatory scrutiny on greenwashing claims could challenge Tandem's environmental product claims.

Rising UK interest rates may reduce demand for Tandem's lending products.

Differentiation

Tandem Bank focuses on environmentally friendly financial solutions, setting it apart from competitors.

The bank's community-driven approach involves users in product development, enhancing customer satisfaction.

Tandem's partnerships with Oplo and Allium strengthen its green lending initiatives.

Upsides

Increased demand for sustainable finance aligns with Tandem's green financial products.

Open banking in the UK enhances Tandem's ability to offer personalized services.

UK's net-zero emissions goal supports Tandem's green lending business model.

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