Cloud Architect

Cognizant; Greater London; On-site; GBP 110,000 - 150,000; Full time

Job summary

Cognizant is seeking a Cloud Architect (DevSecOps & LLMOps Engineer) in London. You will design, build, secure, and operate scalable cloud infrastructure and enterprise GenAI apps, driving automation, observability, and modern LLMOps practices.

You will collaborate with architects, developers, security, and business stakeholders to deliver secure, resilient cloud/AI solutions using AWS Bedrock and related tech. Requires SC clearance eligibility and UK residency.

Qualifications

• Strong hands-on experience with AWS services including Bedrock, ECS/Fargate, Lambda, EC2, API Gateway, VPC, ALB, IAM, CloudWatch, S3, EFS, DynamoDB, Neptune and IaC with Terraform.
• Strong DevSecOps experience with GitHub Actions, Ansible, Docker, CI/CD automation, security scanning, secrets management, monitoring and production support.
• Good understanding of LLMOps concepts including LLMs, RAG, embeddings, chunking, vector databases, semantic search, prompts, DAG workflows, AI guardrails, and model evaluation.
• Strong experience with API management platforms (API Gateway, Kong, Apigee or equivalents) for designing and implementing API proxy workflows.

Responsibilities

• Design, implement, and support secure, scalable AWS infrastructure and AI platforms using Terraform, GitHub Actions, Ansible, ECS/Fargate, and AWS services.
• Build and operationalise enterprise GenAI solutions using Bedrock, LLMs, RAG pipelines, embeddings, chunking, vector databases, and AI observability.
• Develop and maintain CI/CD pipelines, IaC, API integrations, cloud security, IAM governance, monitoring, and production BAU support.
• Configure and manage application observability using Datadog, including dashboards, APM, log analytics, and health reporting.
• Collaborate with architects, developers, security teams, and stakeholders to deliver secure, resilient cloud/AI solutions.

Skills

AWS Bedrock

ECS/Fargate

Lambda

API Gateway

Terraform

GitHub Actions

Ansible

Datadog

CI/CD

Docker

Kubernetes

LangGraph

Python

API Management

Education

Bachelor's degree in Computer Science or Engineering

Tools

Terraform

GitHub Actions

Ansible

Datadog

CloudFormation

Route 53

OpenSearch

LangChain

Job description

Cloud Architect (DevSecOps & LLMOps Engineer)

Location: London, United Kingdom (Hybrid – 50% work from client office)
Employment Type: Full-time
Security Clearance: Must hold or be eligible to obtain UK Security Check (SC) Clearance

About the Role

As a Cloud Architect (DevSecOps & LLMOps Engineer), you will make an impact by designing, building, securing, and operating scalable cloud infrastructure and enterprise Generative AI applications that drive automation, observability, and modern LLMOps practices. You will be a valued member of our Cloud & AI Engineering team and work collaboratively with architects, developers, security teams, and business stakeholders to deliver secure, resilient, scalable, and cost-effective cloud and AI solutions using AWS Bedrock and related technologies.

In this role, you will:

• Design, implement, and support secure, scalable AWS infrastructure and AI platforms using Terraform, GitHub Actions, Ansible, ECS/Fargate, and AWS native services.
• Build and operationalise enterprise GenAI solutions using Amazon Bedrock, LLMs, RAG pipelines, vector databases, embeddings, chunking strategies, workflow orchestration (DAG/agentic), and AI observability.
• Develop and maintain CI/CD pipelines, Infrastructure as Code, API integrations, cloud security, IAM governance, monitoring, logging, and production BAU support.
• Configure and manage application observability using Datadog (or equivalent), including dashboards, APM, log analytics, infrastructure monitoring, alerting, and operational health reporting.
• Collaborate with architects, developers, security teams, and business stakeholders to deliver secure, resilient, scalable, and cost-effective cloud and AI solutions.

What You Need to Have to Be Considered

• Strong hands‑on experience with AWS services including Amazon Bedrock, ECS/Fargate, Lambda, EC2, API Gateway, VPC, ALB, IAM, CloudWatch, S3, EFS, DynamoDB, and Neptune, alongside Infrastructure as Code using Terraform.
• Strong experience with DevSecOps practices including GitHub Actions, Ansible, Docker, CI/CD automation, security scanning, secrets management, monitoring, logging, and production support.
• Good understanding of LLMOps concepts including LLMs, RAG, embeddings, chunking, vectorisation, vector databases, semantic search, prompt engineering, workflow orchestration (DAG/LangGraph), AI guardrails, and model evaluation.
• Strong experience with API Management platforms such as Amazon API Gateway, Kong, Apigee, or equivalent — with the ability to design, configure, and implement API proxy workflows, authentication, routing, policies, transformations, and API integrations.
• Strong experience with Datadog (or equivalent monitoring platform) for dashboard creation, application monitoring, alert configuration, APM, log analytics, and performance troubleshooting.
• Excellent communication, stakeholder management, and client‑facing skills.
• Bachelor's degree in Computer Science, Engineering, or equivalent practical experience.
• Must currently reside in the United Kingdom.
• Must be available to start within 4 weeks of receiving an offer.
• Must hold or be eligible to obtain UK Security Check (SC) Clearance.

These Will Help You Stand Out

• Experience with Kubernetes/EKS, Docker, ServiceNow, Jira, GitHub Runners, CloudFormation, Route 53, WAF, EventBridge, Step Functions, and serverless architectures.
• Hands‑on experience with Python development for automation, API integrations, scripting, and cloud‑native application development.
• Experience building AI data pipelines, including document ingestion, preprocessing, metadata enrichment, chunking, embedding generation, vector indexing, and retrieval workflows.
• Familiarity with AI prompt development, prompt tuning, prompt templates, and prompt evaluation techniques.
• Exposure to vector databases, OpenSearch, LangChain/LangGraph, knowledge graphs (Neptune), cloud networking, security best practices, cost optimisation, and enterprise production support.

Additional eligibility requirements:

· Candidates must hold or be eligible to obtain UK Security Check (SC) Clearance

· Candidates must be available to start within 4 weeks of receiving an offer.