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Kryptos Technologies UK Limited

Enterprise Architect - AWS Migration

Hybrid

London, United kingdom

Senior

Freelance

30-01-2026

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Skills

Communication Leadership Risk Management Encryption ServiceNow CI/CD DevOps Monitoring Prioritization Decision-making Presentation Skills Networking Architecture Security Architecture Cloud Architecture Enterprise Architecture Risk Mitigation Databases AWS AWS Cloud

Job Specifications

Enterprise Architect- AWS Migration

Location: London ( Hybrid)

2months+Contract with Possible extension

Job Description: Enterprise Architect – On‑Prem to AWS Migration with 18+ yrs of experience

Role Overview

We are seeking a highly experienced Enterprise Architect to lead and govern large‑scale on‑premises to AWS migration programs.

The ideal candidate will drive end‑to‑end architecture, ensure enterprise tools and platforms integrate seamlessly into the target AWS environment, and provide strong oversight on risk mitigation, cost optimization, delivery timelines, and technical quality.

Key Responsibilities

1. Cloud Migration Strategy & Architecture

Define the overall cloud migration blueprint, including landing zone architecture, application migration patterns (rehost, replat form, refactor), and modernization opportunities.
Lead current‑state assessment and target‑state AWS architecture definition across compute, storage, networking, security, identity, data, and application domains.
Select appropriate AWS services aligned to enterprise standards, scalability needs, security controls, and cost expectations.

2. Delivery Leadership for On‑Prem to AWS Migration

Own delivery governance for migration execution, ensuring adherence to architecture, methodology, and organizational best practices.
Guide migration teams on workload prioritization, dependency mapping, wave planning, and cutover strategies.
Provide architectural oversight during build, testing, deployment, and hyper care phases.

3. Enterprise Tool & Platform Integration

Ensure seamless integration of enterprise tools within the AWS target environment, including:
Monitoring (e.g., Datadog, CloudWatch, AppDynamics)
Security tooling (SIEM/SOAR, vulnerability scanners, identity systems)
ITSM/ITOM platforms (ServiceNow, CMDB integrations)
Dev Sec Ops pipelines and enterprise CI/CD frameworks
Define integration patterns, interface contracts, and compliance controls for all cross-platform interactions.

4. Risk Management & Governance

Establish and maintain a migration risk register, covering technical, security, compliance, timeline, and operational risks.
Drive proactive mitigation strategies and technical solutions to reduce migration complexity and cutover risks.
Ensure architectural decisions meet enterprise risk, security, and regulatory requirements.

5. Financial Governance & Cost Optimization

Develop cost models and TCO calculations for AWS target environments.
Ensure design decisions minimize unnecessary spend through rightsizing, architectural efficiencies, and use of AWS cost-optimization features.
Collaborate with FinOps teams to track usage patterns and optimize ongoing run-rate.

Required Skills & Experience

Technical Expertise

18–22+ years of experience in enterprise IT architecture, including 4–6+ years in AWS cloud architecture.
Proven hands-on experience designing and governing complex cloud migration programs.
Strong knowledge across:
AWS compute, storage, networking, VPC design, IAM, KMS
Containers & serverless (ECS, EKS, Lambda)
Databases (RDS, Aurora, DynamoDB, migration tooling like DMS)
Landing zone / multi‑account design (Control Tower, Organizations)
Security architecture, compliance, encryption, and zero-trust principles

Enterprise Architecture & Governance

Expertise in TOGAF, SABSA, or equivalent frameworks.
Ability to develop architecture roadmaps, standards, principles, and reusable patterns.

Leadership & Delivery

Strong delivery governance experience for complex multi-phase migration programs.
Ability to influence engineering teams, resolve architecture disputes, and guide decision-making.
Excellent communication and executive‑level presentation skills.

Preferred Qualifications

AWS Certified Solutions Architect – Professional (highly preferred)
AWS Certified Security / DevOps Engineer certifications
Experience with hybrid-cloud, multi-cloud, and on-prem infrastructure modernization
Experience working with FinOps teams on cloud cost governance

About the Company

Kryptos Technologies Limited is a global technology, consulting and Professional IT services company serving various Industry Domains like Banking, Insurance,Telecom,Automotive, Media, Retail, Manufacturing,Mobile,Transportation &Logistics, Travel, Energy ,Oil & Gas and Public Sector. Kryptos offers integrated services that include Strategic consulting, outsourcing, Staffing, Professional, Managed, infrastructure and cloud services. Headquartered at London, United Kingdom Kryptos deliver outstanding impact on the reputation... Know more