Infinity Quest
AWS Technology Lead – AWS Cloud Modernization & Platform Engineering
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AWS Technology Lead – AWS Cloud Modernization & Platform Engineering
Location: London, UK – Hybrid
Address: Holborn Viaduct, London EC1A 2FD
Experience: 12–15+ years
Role Summary
We are seeking a senior, hands-on AWS Technology Lead / Solution Architect to lead a large-scale application modernization programme, transforming legacy Java enterprise applications into scalable, secure and cloud-native AWS solutions.
The role combines AWS architecture, Java engineering, serverless, containers, database architecture/DBA, DevOps, platform engineering and customer-facing technical leadership.
The ideal candidate must be able to move between architecture workshops, hands-on engineering, DynamoDB/Aurora PostgreSQL, CI/CD, production readiness and technical team leadership.
Key Responsibilities
AWS Cloud & Application Modernization
- Lead modernization of enterprise Java applications into AWS cloud-native, microservices and event-driven architectures.
- Define target architecture, modernization roadmap, transition states and technical standards.
- Drive API-first, Domain-Driven Design (DDD), microservices and serverless adoption.
- Design and implement ECS, Fargate, Docker, ECR, Lambda, API Gateway, EventBridge, SQS, SNS and Step Functions.
- Implement AWS security, networking, monitoring and operational services including IAM, VPC, CloudWatch, CloudTrail, S3, Secrets Manager, Route 53 and PrivateLink.
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Java / Software Engineering
- Provide hands-on technical leadership across Java 11/17+, Spring Boot, Spring Cloud, REST APIs, Python and TypeScript.
- Guide teams in microservices, distributed systems, asynchronous integration and fault-tolerant design.
- Conduct architecture/code reviews and contribute to POCs, technical spikes and complex defect resolution.
- Establish coding standards, design patterns and secure development practices.
Database Architecture & DBA
- Strong hands-on expertise with Amazon DynamoDB and Amazon Aurora PostgreSQL/PostgreSQL.
- Design DynamoDB data models, including partition keys, sort keys, GSI/LSI, TTL, Streams and Global Tables.
- Troubleshoot DynamoDB hot partitions, throttling, performance and cost issues.
- Design Aurora PostgreSQL schemas, indexing, partitioning and high-availability solutions.
- Perform SQL tuning, execution-plan analysis and query optimization.
- Handle backup, recovery, replication, failover, patching and disaster recovery.
- Lead database migrations from Oracle, MySQL, PostgreSQL or other legacy platforms.
DevOps & Platform Engineering
- Design and govern CI/CD using Jenkins, Git, GitHub Actions, AWS CodePipeline and CodeBuild.
- Implement infrastructure automation using Terraform and/or CloudFormation.
- Establish automated testing, security scanning, code quality and release controls.
- Define monitoring, logging, tracing, alerting and SLO practices.
- Drive DevSecOps and continuous improvement.
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Technical & Customer Leadership
- Act as the primary technical contact for customer architects and engineering/programme stakeholders.
- Lead discovery sessions, architecture workshops, design reviews and technical governance.
- Translate business requirements into scalable technical solutions.
- Communicate architecture decisions, risks, dependencies and delivery status to technical and executive stakeholders.
- Lead and mentor architects, developers, DevOps/cloud engineers and database specialists.
Mandatory Skills
Must-have technical stack:
- AWS Architecture
- Amazon ECS / Fargate
- AWS Lambda / API Gateway
- Event-driven architecture
- Microservices / Distributed systems
- Java 11/17+, Spring Boot, Spring Cloud
- REST APIs
- Python / TypeScript
- DynamoDB – strong hands-on
- Aurora PostgreSQL / PostgreSQL – strong hands-on DBA
- SQL tuning and database performance optimization
- Data modelling and database migration
- Docker
- Jenkins / Git / CI/CD
- Terraform and/or CloudFormation
- AWS security and monitoring
- Architecture governance and technical leadership
- Customer/stakeholder management
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