Principal Software Reliability Engineer, Product Engineering
Principal Software Reliability Engineer, Product Engineering

Principal Software Reliability Engineer, Product Engineering

Full-Time 48000 - 72000 £ / year (est.) No home office possible
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Entrust Datacard

At a Glance

  • Tasks: Drive reliability efforts in product engineering and optimise application performance.
  • Company: Entrust, a leader in identity-centric security solutions with a global impact.
  • Benefits: Career growth opportunities, flexible work options, and a collaborative culture.
  • Why this job: Define Product Reliability from scratch and make a real impact on security solutions.
  • Qualifications: 8+ years in software engineering and experience in reliability/SRE.
  • Other info: Join a diverse team committed to innovation and inclusivity.

The predicted salary is between 48000 - 72000 £ per year.

Join us at Entrust. We’re shaping the future of identity-centric security solutions. From our comprehensive portfolio of solutions to our flexible, global workplace, we empower careers, foster collaboration, and build solutions that help keep the world moving safely.

Headquartered in Minnesota, Entrust is an industry leader in identity-centric security solutions, serving over 150 countries with cutting-edge, scalable technologies. But our secret weapon? Our people. It’s the curiosity, dedication, and innovation that drive our success and help us anticipate the future.

This is a Product Reliability position, not an infrastructure SRE role. Our DevOps team manages the infrastructure platform; this role focuses on application and service-level reliability, working directly with product engineers. This is the first role of its kind in product engineering. Reporting to the VP of Product Engineering for Consumer Identity, you’ll drive reliability efforts across the team: defining the roadmap, prioritising initiatives, and partnering with engineering directors and senior ICs to deliver them.

Why Join Us

  • Greenfield opportunity: You’ll define Product Reliability as a discipline here. Build the playbook, not inherit one.
  • High-impact domain: Consumer Identity powers identity verification and biometric authentication for some of the world’s largest financial institutions. Our reliability directly impacts fraud prevention and customer onboarding at scale.
  • Real authority: Direct line to VP Engineering, budget for tooling, seat at architecture council and service reviews.
  • Strong foundation: We’re not firefighting. 99.98% uptime means you’re optimising, not triaging chaos.
  • Technical depth: Work across ML pipelines, computer vision systems, and mobile SDKs (not just YAML and dashboards).
  • Ownership culture: Engineers own their services end-to-end; you’ll amplify that, not replace it.

Experience Level

  • Staff SRE: 8+ years in software engineering, 4+ years in reliability/SRE. Drives reliability initiatives across multiple teams; hands-on with complex systems.
  • Principal SRE: 15+ years in software engineering, 6+ years in reliability/SRE. Sets technical direction org-wide; influences business-unit-level reliability strategy.

We’re open to either level. Scope and compensation will match your experience. Principal candidates should demonstrate cross-org impact and a track record of building reliability programs from scratch.

Current State Incident Analysis (2020–2025)

  • Postmortem volume peaked in 2023, down 48% since then despite increased release cadence.
  • P0-to-P1+ ratio remains stable despite lower overall incident volume.
  • 65% change-induced incidents (deployments, migrations, config changes); 35% organic (third-party outages, expirations, attacks).
  • Change-induced ratio improved modestly: 69% → 62%.
  • Detection time: 35 min → 18 min.
  • Customer-first detection: 40% → 22%.

Availability Targets

  • 2024 & 2025 average uptime: 99.98% (as available in our public status page).
  • Goal: Consistent 99.99% (four nines) average uptime, SLO breach reductions.

System Simplification

  • We’re reducing system complexity to narrow the reliability target area: Microservices (K8s deployments/rollouts) reduced 29% from peak, with further cuts planned for 2026.
  • Goal: Smaller footprint, higher reliability, lower cost for new regions.

Role Objectives

  • Primary goal: Improve release safety, reduce releases that cause downtime or SLO degradation. We already have foundational systems in place:
  • Automated test coverage and crowd testing.
  • A/B testing and dark canaries.
  • Progressive rollouts (infrastructure and application level).
  • Back-testing against historical data.
  • To consistently exceed four nines, we need to mature these systems and build new capabilities.
  • Ideal Candidate Profile Mindset

    • Passionate about reliability as a discipline, not just a checkbox.
    • Focused on reliability, not product features, but willing to learn the product to understand impact.
    • Hands-on: eager to build tooling and systems.
    • Pragmatic about balancing reliability with development velocity.

    Required Skills

    • Software Engineering: Strong software engineering in at least one of our backend languages (Python, Ruby, Node.js); able to navigate most of our codebase. Experience building reliability tooling: progressive delivery, automated rollbacks, monitoring/alerting.
    • Reliability Patterns: Deep knowledge of resilience patterns: circuit breakers, bulkheads, back-pressure, retries with backoff, rate limiting, load shedding, graceful degradation. Solid incident management and blameless postmortem practices.
    • Observability: Proficiency with observability: distributed tracing, structured logging, metrics instrumentation. Uses data to drive decisions: experienced with SLIs, SLOs, and error budgets.
    • Communication: Skilled at influencing without authority. Able to hold deep technical reliability discussions with senior ICs.

    Nice-to-Have

    • Experience with chaos engineering (fault injection, game days, controlled failure experiments).
    • ML system reliability experience (mixed I/O and CPU-bound workloads, non-deterministic behaviour, model serving).
    • Familiarity with our specific stack (Datadog, Kubernetes, AWS, GitLab CI/CD).
    • Experience leveraging LLMs for code analysis, design doc review, or automated runbook generation.
    • On-call experience in a high-availability environment.

    Our Stack

    • Backend: Python, Ruby on Rails, Node.js.
    • Frontend: React, TypeScript.
    • Mobile: Swift (iOS), Kotlin (Android), React Native.
    • Infrastructure: AWS, Kubernetes, Terraform, SNS, SQS.
    • Databases: PostgreSQL (Aurora), Redis, OpenSearch.
    • Observability: Datadog, Splunk, Sentry.
    • ML: PyTorch, TensorFlow.
    • CI/CD: GitLab (on-prem).

    At Entrust, we don’t just offer jobs – we offer career journeys. Here is what you can expect when you join our team:

    • Career Growth: Whether you’re a budding developer or a seasoned expert, we’re invested in your professional journey. With learning-forward initiatives and exciting challenges, your growth is our priority.
    • Flexibility: Life is all about balance. Whether you’re remote, hybrid, or on-site, we offer flexible options that fit your lifestyle.
    • Collaboration: Here, your voice matters. Our teams thrive on sharing ideas, brainstorming solutions, and working together to build a better tomorrow.

    We believe in securing identities—but it doesn’t stop there. At Entrust, we’re passionate about valuing all identities. Our culture is built on diversity, inclusion, and respect. From unconscious bias training for our leaders to global affinity groups that connect colleagues across the globe, we’re creating a community where everyone is encouraged to be themselves.

    Ready to Make an Impact? If you’re excited by the prospect of innovating, growing your career, and collaborating in a dynamic environment, Entrust is the place for you. Join us in making a difference. Let’s build a more secure world—together. Apply today!

    Principal Software Reliability Engineer, Product Engineering employer: Entrust Datacard

    Entrust is an exceptional employer that prioritises employee growth and collaboration within a flexible, global workplace. With a strong commitment to diversity and inclusion, we empower our team members to innovate and shape the future of identity-centric security solutions while enjoying a supportive culture that values every voice. Join us in Minnesota, where you can define your career journey and make a meaningful impact in a high-stakes domain.
    Entrust Datacard

    Contact Detail:

    Entrust Datacard Recruiting Team

    StudySmarter Expert Advice 🤫

    We think this is how you could land Principal Software Reliability Engineer, Product Engineering

    ✨Tip Number 1

    Network like a pro! Reach out to folks in your industry on LinkedIn or at meetups. A friendly chat can open doors that applications alone can't.

    ✨Tip Number 2

    Prepare for those interviews! Research the company and its products, especially around reliability and security. Show them you’re not just another candidate but someone who’s genuinely interested in their mission.

    ✨Tip Number 3

    Practice makes perfect! Do mock interviews with friends or use online platforms. The more comfortable you are talking about your experience and skills, the better you'll perform.

    ✨Tip Number 4

    Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re serious about joining our team!

    We think you need these skills to ace Principal Software Reliability Engineer, Product Engineering

    Software Engineering
    Python
    Ruby on Rails
    Node.js
    Reliability Tooling
    Observability
    Distributed Tracing
    Structured Logging
    Metrics Instrumentation
    Incident Management
    Blameless Postmortem Practices
    Resilience Patterns
    Communication Skills
    Chaos Engineering
    Machine Learning System Reliability

    Some tips for your application 🫡

    Tailor Your Application: Make sure to customise your CV and cover letter for the Principal Software Reliability Engineer role. Highlight your experience in reliability and software engineering, and show how your skills align with what we’re looking for at Entrust.

    Showcase Your Passion: We want to see your enthusiasm for reliability as a discipline! Share examples of how you've driven reliability initiatives in the past and how you plan to bring that passion to our team.

    Be Clear and Concise: When writing your application, keep it straightforward. Use clear language and avoid jargon where possible. We appreciate a well-structured application that gets straight to the point!

    Apply Through Our Website: Don’t forget to submit your application through our website! It’s the best way for us to receive your details and ensures you’re considered for the role. We can’t wait to hear from you!

    How to prepare for a job interview at Entrust Datacard

    ✨Understand the Role

    Before your interview, make sure you fully grasp what a Principal Software Reliability Engineer does at Entrust. Familiarise yourself with the specific responsibilities, especially around application and service-level reliability. This will help you articulate how your experience aligns with their needs.

    ✨Showcase Your Technical Skills

    Be prepared to discuss your hands-on experience with relevant technologies like Python, Ruby, or Node.js. Highlight any projects where you've built reliability tooling or implemented resilience patterns. This is your chance to demonstrate your technical depth and problem-solving abilities.

    ✨Prepare for Behavioural Questions

    Entrust values collaboration and communication, so expect questions that assess your ability to influence without authority. Think of examples from your past where you've successfully navigated team dynamics or led initiatives that improved reliability.

    ✨Ask Insightful Questions

    At the end of the interview, have a few thoughtful questions ready. Inquire about their current reliability challenges or how they envision the role evolving. This shows your genuine interest in the position and helps you gauge if it's the right fit for you.

    Principal Software Reliability Engineer, Product Engineering
    Entrust Datacard
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