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Waracle

Principal Backend Developer

London
Posted 2 months ago
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Principal Developer – Hybrid (London)

About the Role

Waracle are looking for a Principal Developer to join our world-class digital technology consultancy, where we foster a diverse, intelligent, and ambitious community of tech specialists. We partner with innovative clients to tackle their most pressing business challenges, designing intelligent digital products and services.

We thrive on solving complex transformation challenges, moving seamlessly from strategy, design, delivery, to operations—whether it’s shaping architecture, optimising legacy systems, or enabling scalable cloud-native solutions. This is a hybrid role, with 2 days per week in our London office.

Are you a strategic technical leader who thrives on mentoring, building inclusive engineering cultures, and tackling intricate challenges with pragmatism and empathy? If so, we’d love to welcome you to Waracle.


Shaping the Future of Digital Innovation

As a Principal Developer, you will:

  • Guide robust architectures, data strategies, and cloud-native environments, working across multiple squads and collaborative programmes.
  • Champion technical excellence, balancing cost, security, performance, and user experience to help Waracle deliver high-performance, world-class solutions.
  • Collaborate with clients at all levels, advising on impactful digital solutions and translating complex technical trade-offs into clear recommendations.
  • Mentor and inspire your team, fostering a collaborative, high-performing engineering culture.
  • Define and evolve Waracle’s technical standards, contributing to knowledge-sharing and best-practice frameworks.

Key Responsibilities

Technical Leadership & Problem-Solving

  • Partner closely with client stakeholders to assess technology estates and advise on scalable, high-impact digital solutions.
  • Drive architecture design and scaling with a focus on:
    • Distributed systems
    • Microservices
    • Database designs (SQL and NoSQL)
    • Cloud-native environments (with a preference for Azure, particularly in API management, monitoring, and scaling)
  • Balance technical innovation with commercial realities, ensuring alignment with client goals while maintaining performance, security, and efficiency.

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£35,000/yr

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Why you're a good match

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Collaboration & Stakeholder Alignment

  • Serve as a trusted technical advisor, bridging gaps between senior stakeholders and engineering teams.
  • De-risk projects by clear communication of technical decisions and trade-offs without jargon.
  • Align multiple squads on technical standards, fostering cross-team cohesion.

Mentorship & Growth

  • Mentor Senior Engineers and technical leads, cultivating a psychologically safe, growth-oriented culture.
  • Foster engineering knowledge-sharing through thought leadership, lessons learned, and mentorship.
  • Ensure consistency in technical excellence through documentation, review, and peer alignment.

Requirements & Fit

At Waracle, we believe in hiring for potential, passion, and collaborative mindset—not just experience. If you’re driven by our values and want to make an impact, apply even if you don’t meet every box.

Technical Expertise

  • Proven experience designing scalable back-end architectures in cloud-native environments, especially with Azure.
    • Focus areas include:
      • API management
      • Maintenance at scale
      • Database optimization
  • Hands-on experience with distributed systems, microservices, and hybrid data designs (SQL and NoSQL).
  • Strong leadership in technical direction, ownership mindset, and influencing stakeholders to drive high standards in complex enterprise projects.

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Communication & Consultation

  • Ability to simplify and translate technical concepts for senior clients and non-technical leaders.
  • Pragmatic approach to balancing technical rigor with business requirements.

Leadership & Culture Building

  • Record of mentoring senior engineers, helping them grow technically and collaboratively.
  • Commitment to psychological safety, enabling a continuous learning culture.

Modern SDLC & AI Acceleration

  • Forward-thinking approach to optimising engineering practices using:
    • AI-powered tools
    • Accelerated CI/CD
    • Data-driven decision-making

The Recruitment Process

  1. Initial Chat with Talent Acquisition

    • Learn more about Waracle’s culture, discuss your expectations, salary, and benefits.
    • Ask any questions you have during this informational interview.
  2. Two-Stage Interview Process

    • Meet your potential team and experiment with coding challenges, project discussions, or case studies.
    • Showcase your problem-solving skills, leadership, and values alignment.
  3. Ongoing Support & Onboarding

    • Our Talent Acquisition Partner will guide you through each step.
    • Personalised help right up to your first day with Waracle.

Ready to shape the future of digital innovation with us? Apply now. (Replace link with actual application link in practice.)

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Skills

Backend Architecture
Distributed Systems
Microservices
SQL
Azure
API Management
Technical Leadership
Stakeholder Management
Mentorship
SDLC
AI Acceleration Tools
Cloud-Native Environments

Location

London, England, United Kingdom

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