Network & Connectivity Solution Architect

Nasdaq, Inc.; Greater London; Hybrid; GBP 90,000 - 140,000; Full time

Job summary

Nasdaq, Inc. in London is seeking a Network & Connectivity Solution Architect to design end-to-end network architectures for the CapCloud platform, spanning cloud, hybrid, and on-prem environments across AWS and OCI.

You will lead discovery workshops, define reference architectures, and govern security and PKI choices, TLS/mTLS, and Zero Trust to ensure scalable, compliant connectivity for global clients. This role emphasizes hands-on design, client collaboration, and close alignment with CI/CD

Qualifications

• Several years of experience in network architecture, cloud networking, or connectivity engineering.
• Experience designing end-to-end network solutions including VPC/VCN architectures, BGP/OSPF routing, VPN technologies, and private connectivity services.
• Kubernetes networking, service mesh, and API gateway concepts with security controls.

Responsibilities

• Lead the design of scalable, secure network and connectivity architectures for CapCloud across cloud-native, hybrid, and on-prem environments (AWS/OCI).
• Serve as the primary technical advisor for customer connectivity and integration architecture; run discovery workshops and design reviews.
• Define and maintain connectivity reference architectures, blueprints, and standards (private connectivity, VPNs, APIs, load balancing, proxies).
• Govern enterprise PKI, TLS/mTLS, and Zero Trust networking to meet X.509 and PKIX standards.
• Champion IaC adoption using Terraform and cloud-native automation; integrate networking into CI/CD pipelines.

Skills

Network architecture

Cloud networking

Kubernetes networking

Security architecture

Traffic management

Tools

AWS Direct Connect

OCI FastConnect

FortiGate VPN

HAProxy

Squid Proxy

TLS/mTLS

Job description

As a Network & Connectivity Solution Architect reporting to the VP of Software Engineering, you'll play a critical role in designing and governing the end-to-end network and connectivity architectures that power the Calypso CapCloud platform — a cloud-native capital markets solution serving clients across global financial markets.You'll thrive in this position if you're technically deep, client-focused, and energized by solving complex connectivity challenges across cloud, hybrid, and on-premises environments. You bring a global mindset, a passion for cloud networking and security, and the ability to translate complex architecture into clear, actionable outcomes.Key ResponsibilitiesLead the design of scalable, secure network and connectivity architectures for the CapCloud platform, spanning cloud-native, hybrid, and on-premises environments across AWS and Oracle Cloud Infrastructure (OCI).Serve as the primary technical advisor for customer connectivity and integration architecture, leading discovery workshops, design reviews, and onboarding engagements with clients and implementation partners.Define and maintain connectivity reference architectures, solution blueprints, and design standards — covering private connectivity, VPNs, APIs, load balancing, proxy architectures, and traffic management.Architect and govern enterprise PKI, TLS/mTLS, and Zero Trust networking solutions, ensuring compliance with X.509, RFC 5280, and PKIX standards.Lead adoption of Infrastructure as Code (IaC) practices using Terraform and cloud-native automation, standardizing connectivity deployment patterns and integrating networking into CI/CD pipelines.Required QualificationsSeveral years of experience in network architecture, cloud networking, or connectivity engineering, with hands-on expertise across AWS (preferred) and/or OCI environments.Proven ability to design end-to-end network solutions including VPC/VCN architectures, BGP/OSPF routing, VPN technologies (IPsec, FortiGate), and private connectivity services (AWS Direct Connect, OCI FastConnect, AWS PrivateLink).Strong experience with traffic management technologies including Layer 4/7 load balancers, HAProxy, Squid Proxy, SSL termination, and reverse proxy architectures.Demonstrated experience with Kubernetes networking, service mesh architectures (mTLS, East-West traffic), and API gateway standards (authentication, rate limiting, developer onboarding).Clear communicator with a track record of presenting architecture recommendations to both technical teams and senior stakeholders.Preferred QualificationsCloud networking certifications (e.g., AWS Advanced Networking Specialty, OCI Networking) or equivalent experience.Experience in capital markets, fintech, or regulated financial services environments.Familiarity with connectivity protocols used in financial markets, including FIX connectivity, IBM MQ, market data distribution, and third-party trading and clearing platforms.This position is based in London and offers a hybrid work environment with at least 3 days per week in-office, subject to change.Benefits & RewardsWe offer a competitive, well-rounded rewards package designed to support the financial, physical, and emotional well-being of our employees and their families (where applicable).The actual pay depends on factors like your skills, experience, qualifications, and location. In addition to base pay, we offer short-term incentives (bonus or commission) and long-term incentives (equity), where applicable.We utilize a structured job architecture and career framework to ensure growth opportunities are transparent, fair, and accessible to all employees. The pay range you see reflects the full salary band for this job level, including room for progression over time.For more information, visit Nasdaq Benefits & Rewards Career Page.Come as You AreNasdaq is an equal opportunity employer. We welcome applications from candidates of all backgrounds and identities.We are committed to fostering an inclusive workplace where diverse perspectives, experiences, and identities are valued and celebrated.We ensure that individuals with disabilities are provided with reasonable accommodation throughout the hiring process.