Principal Architect
Hackajob, in partnership with OneAdvanced, seeks a Principal Architect to lead architectural vision and strategy across complex projects.
Responsibilities
* Define and lead the architectural vision and strategy for projects.
* Oversee the design, planning, and execution of architectural solutions.
* Collaborate with stakeholders to understand needs and ensure alignment with business goals.
* Provide technical leadership and mentorship to architectural and engineering teams.
* Ensure architectural designs meet quality standards and comply with industry regulations.
* Drive innovation by exploring and implementing new technologies and methodologies.
* Create and maintain comprehensive architectural documentation.
* Identify and mitigate risks associated with architectural decisions.
* Manage resources effectively to ensure project success.
* Promote a culture of continuous improvement and learning within the architecture team.
Qualifications
* Extensive knowledge of architectural design principles and practices.
* Strong leadership and mentorship abilities.
* Excellent communication skills to interact with stakeholders and team members.
* Analytical skills to analyze complex technical problems and develop effective solutions.
* Strong project management skills to oversee architectural projects.
* Creative thinking to drive innovation and explore new technologies.
* Strong collaboration skills to work effectively with cross‑functional teams.
* High attention to detail to ensure architectural quality and compliance.
* Flexibility to adapt to new technologies and changing business needs.
* Extensive knowledge of industry standards and best practices.
Enterprise Microservices Architecture
* Proven track record in designing and governing large‑scale, event‑driven, domain‑oriented microservice solutions.
* Ability to enforce clear boundaries (bounded contexts, APIs, contracts, data ownership).
* Skilled in the “strangler pattern,” saga orchestration, CQRS, and event sourcing.
Migration & Modernisation Expertise
* Deep knowledge of migration models (strangler fig, re‑platforming, re‑hosting, re‑architecting).
* Experience managing hybrid environments where legacy and modern services coexist.
* Strong background in API bridges / universal APIs to enable gradual cutover without technical debt.
Cloud Architecture (AWS & Azure)
* Hands‑on experience architecting resilient, secure, and cost‑optimised workloads on both AWS and Azure.
* Proficient in managed services (e.g., AWS ECS/EKS, Azure AKS, Event Grid, Service Bus, Lambda, Logic Apps).
* Skilled in multi‑cloud and hybrid patterns, including networking, identity, and data integration.
Security, Compliance & Governance
* Strong command of cloud security (IAM, zero‑trust, encryption, secrets management).
* Knowledge of UK/EU data regulations (GDPR, safeguarding, data residency).
* Ability to build secure‑by‑design reference architectures and align with enterprise security policies.
Data & Integration Strategy
* Expertise in designing data pipelines across operational, analytical, and event‑driven layers.
* Mastery of messaging patterns (Kafka, Event Hub, SNS/SQS), API management, and data mesh/federation approaches.
* Clear strategy for legacy database integration and data migration with minimal downtime.
Scalability, Resilience & Performance Engineering
* Ability to design architectures with high availability, disaster recovery, and observability baked in.
* Proven experience with distributed caching, load balancing, multi‑region failover, and chaos engineering practices.
* Hands‑on with SLAs, SLOs, SLIs, and performance tuning at enterprise scale.
SRE & Platform Engineering Leadership
* Expert in CI/CD pipelines, infrastructure‑as‑code (Terraform, Bicep, CloudFormation).
* Skilled in embedding reliability engineering principles (monitoring, alerting, auto‑healing).
* Ability to mentor platform engineering teams to build reusable accelerators and golden paths.
AI‑Enabled Architecture
* Ability to integrate AI agents and AI‑powered services into the SDLC and architecture.
* Experience with AI in governance (code quality, compliance checks), delivery acceleration (AI code generation, testing), and operational insights (predictive monitoring, anomaly detection).
* Understanding of responsible AI, compliance, and human‑in‑the‑loop orchestration.
Strategic Stakeholder Management & Communication
* Able to translate complex architectures into clear, business‑aligned roadmaps for executives.
* Skilled at bridging product, engineering, and operations with a common architecture vision.
* Excellent at governance boards, architecture review forums, and C‑suite presentations.
Innovation Drive
* Ability to anticipate technology shifts (AI‑native services, edge computing, serverless).
* Inspire teams to adopt best practices while balancing delivery velocity with long‑term maintainability.
* Capable of setting and evolving architecture standards, patterns, and frameworks across the enterprise.
Benefits
* Annual leave – 26 days plus public holidays and ability to buy additional days.
* Employee Assistance Programme – Free advice, support, and confidential counselling 24/7.
* Personal growth programmes – Leadership training and development programmes.
* Performance bonus – Group‑wide bonus scheme.
* Online learning – SkillsHub and external training opportunities.
* Financial wellbeing, pension scheme, income protection insurance.
* Recognition programmes, performance & talent platform.
* Volunteering leave, MatchIt! fundraise matching, Pennies from Heaven donation scheme.
Who We Are
OneAdvanced is one of the UK’s largest providers of business software and services, powering critical sectors and supporting millions of users.
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