AWS Solution Architect

Infinity Quest; Cambridge; On-site; GBP 110,000 - 150,000; Full time

Job summary

Infinity Quest is seeking an experienced Solution Architect to design and lead scalable, cloud-native systems on AWS. You will work with engineering, product, and business stakeholders to define architectures for distributed microservices powered by event-driven patterns.

You will be the technical authority on architecture decisions, shaping standards and patterns that teams follow across the organisation. The role requires strong leadership and collaboration across senior engineering talent.

Qualifications

• 8+ years in software engineering with 3+ years in architecture roles.
• AWS Certified Solutions Architect - Professional or equivalent.
• Deep AWS expertise across compute, storage and networking services.
• Experience with service mesh (Istio, AWS App Mesh, Linkerd).
• Data architecture: streaming pipelines, data lakes/warehouses.
• Event-driven patterns: Kafka, SQS/SNS, EventBridge, Kinesis.

Responsibilities

• Define end-to-end system architectures aligned with business goals and engineering capabilities.
• Enforce design principles, architectural standards, and best practices across teams.
• Conduct architecture reviews, threat modelling sessions, and design critiques.
• Own and maintain technical roadmaps across multiple product domains.
• Define domain boundaries, bounded contexts, and inter-service communication contracts.
• Design RESTful, GraphQL, and gRPC APIs with versioning in mind.
• Set patterns for resilience: circuit breakers, retries, bulkheads, rate limiting.
• Establish observability: tracing, structured logging, metrics.
• Design event streaming and async messaging with Kafka, SQS/SNS, EventBridge, Kinesis.
• Define event schema standards and schema evolution strategies.
• Implement event sourcing, CQRS, and saga orchestration where appropriate.
• Govern event-driven data flows across bounded contexts and third-party integrations.
• Design AWS infrastructure: EKS, Lambda, ECS/Fargate, RDS, DynamoDB, S3, CloudFront, VPC.
• Define IaC standards using Terraform and/or AWS CDK.
• Oversee multi-account AWS organisation, landing zones, and guardrails.
• Lead cloud migration and modernization from on-premise to AWS.

Skills

8+ years software eng

3+ years architecture

AWS Solutions Architect Pro

AWS core compute/storage/networking

Service mesh (Istio/App Mesh/Linkerd)

Data streaming pipelines

Event-driven patterns (Kafka/SQS/SNS/…

Serverless/Lambda patterns

IaC: Terraform / AWS CDK

Multi-cloud / hybrid cloud

FinOps tooling

CI/CD / DevOps

Mentoring senior engineers

Strong communication

Zero-trust IAM patterns

Job description

We are looking for an experienced Solution Architect to design and lead the implementation of scalable, cloud-native systems on AWS. You will work across engineering, product, and business stakeholders to define architecture for distributed microservices platforms powered by event-driven patterns - translating complex requirements into resilient, production-grade solutions.

This is a high-impact, highly collaborative role. You will serve as the technical authority on architecture decisions, shaping standards and patterns that engineering teams follow across the organisation.

Key Responsibilities

• Define end-to-end system architectures aligned with business goals and engineering capabilities.
• Establish and enforce design principles, architectural standards, and best practices.
• Conduct architecture reviews, threat modelling sessions, and design critiques.
• Own and maintain technical roadmaps across multiple product domains.
• Define domain boundaries, bounded contexts, and inter-service communication contracts.
• Design RESTful, GraphQL, and gRPC APIs with a focus on backward compatibility and versioning.
• Set patterns for service resilience: circuit breakers, retries, bulkheads, and rate limiting.
• Establish observability standards: distributed tracing, structured logging, and metrics.
• Design event streaming and async messaging systems using Apache Kafka, Amazon SQS/SNS, EventBridge, and Kinesis.
• Define and enforce event schema standards and schema evolution strategies.
• Implement event sourcing, CQRS, and saga orchestration patterns where appropriate.
• Govern event-driven data flows across bounded contexts and third-party integrations.
• Design AWS infrastructure using EKS, Lambda, ECS/Fargate, RDS, DynamoDB, S3, CloudFront, and VPC networking.
• Define Infrastructure as Code (IaC) standards using Terraform and/or AWS CDK.
• Oversee multi-account AWS organisation structure, landing zones, and guardrails (AWS Control Tower).
• Lead cloud migration and modernisation initiatives from on-premise to AWS.

Stakeholder Engagement

• Partner with engineering leads, product managers, and C-suite to align technical strategy with business objectives.
• Present architecture proposals, trade-off analyses, and risk assessments to technical and non-technical audiences.
• Act as a trusted advisor to external clients or partners where required.
• Mentor and upskill senior engineers on architecture patterns and cloud-native practices.

Security, Reliability & Cost

• Embed security into architecture from day one: IAM, KMS, WAF, AWS Shield, and secrets management.
• Design for reliability using multi-AZ deployments, DR strategies, and defined SLAs/SLOs.
• Drive FinOps practices: right-sizing, reserved capacity planning, and cloud cost optimisation.

Skills & Experience

Required

Nice to Have

8+ years in software engineering, 3+ in architecture roles

AWS Certified Solutions Architect - Professional

Deep AWS expertise across core compute, storage, and networking services

Experience with service mesh (Istio, AWS App Mesh, Linkerd)

Data architecture: streaming pipelines, data warehousing, data lakes

Event-driven patterns: Kafka, SQS/SNS, EventBridge, Kinesis

Serverless-first architecture and Lambda-optimised design patterns

Infrastructure as Code: Terraform and/or AWS CDK

Multi-cloud or hybrid cloud architecture exposure

FinOps tooling: AWS Cost Explorer, Kubecost, CloudHealth

CI/CD pipelines and DevOps culture and practices

Experience mentoring and developing senior engineering talent

Strong verbal and written communication skills

Familiarity with zero-trust networking and advanced IAM patterns