Principal Software Engineer (Hybrid) at 8th Light | England, GB | Rezi

Principal Software Engineer (Hybrid) at 8th Light

Principal Software Engineer (Hybrid)

8th Light · England, GB

1 months ago

Principal Software Engineer (Hybrid)

8th Light · England, GB

a month ago
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About the Role

As a go-to technologist and strategist within 8th Light, you’ll work with a variety of clients, typically one to two in a year, while continuing to deepen your and our collective domain expertise over the course of your career with us.

Responsibilities

  • Rapidly build trust with clients, demonstrating technical expertise and understanding of their domain and objectives
  • Drive platform engineering work at the client level, connecting long-term technical vision to what ships
  • Lead platform strategy and delivery across diverse platform types, connecting long-term vision to what ships
  • Work pragmatically to balance technology choices while delivering high-quality work within deadlines
  • Advise clients on architecture, scalability and platform evolution, connecting technical decisions to product and business outcomes
  • Collaborate on systems that involve the full ML lifecycle from data ingestion and preprocessing, to model deployment, integration, and performance monitoring
  • Drive innovation by proactively surfacing new technical approaches and product solutions
  • Lead or initiate formal feedback conversations with teams and clients via retrospectives
  • Clearly articulate and document outcomes and drive forward action items
  • Contribute to the health of your team and 8th Light’s culture by modeling our Values
  • Design and manage high-level technical roadmaps for large engagements
  • Build your network and maintain relationships with clients and other industry leaders within your domain
  • Coach client engineering teams, transferring knowledge and leveling up practices
  • Influence client CTOs and executive decisions
  • Plan and execute technical work that involves stakeholders outside of project boundaries such as across a client's technical organization
  • Partner with account teams on planning, opportunity identification, stakeholder relationships, and pre-sales scope shaping
  • Facilitate retrospectives, strategy sessions, and technical deep-dives to improve team and project outcomes
  • Identify, mitigate, and resolve blockers to team progress
  • Contribute to 8th Light by serving as a mentor, leading or designing workshops internally or for clients, representing 8th Light in the tech community, or supporting our hiring processes
  • Demonstrate leadership in scalable system design, modular architecture, and platform- or product-oriented development
  • Bring depth in testing strategies, observability, fault tolerance, and secure engineering practices
  • Apply architectural patterns to evaluate tradeoffs and drive clear, documented design rationale

Requirements

  • Shown long-term repeated success on a variety of projects, typically over the course of 10+ years
  • Trusted expert and leader, often called upon to guide ambiguous initiatives and architect scalable solutions
  • Bring a blend of deep consulting acumen, technical expertise, and product thinking that drives measurable and impactful outcomes
  • Built and shipped production-grade platforms: the reusable foundations, tools, infrastructure, and workflows that help other teams shift faster and more reliably
  • Taken AI and agentic systems from prototype to production, with a strong understanding of infrastructure, authentication, and observability
  • Delivered on high-stakes consulting engagements across multiple language paradigms, stacks, ecosystems, and client industries
  • Built high-quality, maintainable software collaboratively, incrementally, and through an approach tailored towards the unique needs of the clients you’ve served
  • Led the development and delivery of production-grade software using a variety of languages and frameworks, including but not limited to: Java, C#/.NET, Python, TypeScript, JavaScript, React, Go, Ruby, Scala, R, and SQL
  • Actively experimented with AI development tools and translated that experimentation into faster, higher-quality delivery for your teams
  • A track record of understanding, assessing, and embracing new tooling and trends within the software industry
  • Built or integrated AI/ML features into products and systems, including recommendation engines, NLP, computer vision, predictive analytics, RAG pipelines, and agents
  • Successfully led modernization and replatforming efforts to align legacy systems with short and long-term business needs
  • Led and delivered solutions to architecture-level problems including scalability, security, reliability, performance, maintainability, and observability
  • Facilitated alignment across technical and non-technical stakeholders to move initiatives forward through ambiguity and complexity
  • Provided mentorship and team support at scale, while sharing knowledge and improving team practices
  • Collaboratively led stakeholders to balance technical considerations with product and user needs
  • Actively sought out and effectively given feedback

Skills

  • Platform engineering
  • Data Engineering
  • Databricks
  • Delivering production agentic systems
  • RAG pipelines
  • Vector search
  • Agentic frameworks such as LangChain, LlamaIndex, CrewAI, AutoGen, and n8n
  • DevSecOps & DevOps
  • MLOps
  • Infrastructure as Code
  • Building a truly diverse, equitable, and inclusive workplace
  • Java
  • C#/.NET
  • Python
  • TypeScript
  • JavaScript
  • React
  • Go
  • Ruby
  • Scala
  • R
  • SQL
  • AI development tools
  • Testing strategies
  • Observability
  • Fault tolerance
  • Secure engineering practices
  • Scalable system design
  • Modular architecture
  • Platform-oriented development
  • Product-oriented development
  • Architectural patterns

Location

  • Waterloo, London, England, UK

Work Type

  • Hybrid (1 day per week in office)

Experience Level

  • 10+ years

Salary/Compensations

  • £92,818-£116,122 GBP

Benefits

  • Robust L&D programme featuring unlimited access to thousands of books, courses, and expert-led training on the O'Reilly learning platform
  • Annual financial stipend and time allotment for learning & development
  • Coworking support for our global team
  • 12 weeks of new parent leave available for eligible employees

About the Company

  • At 8th Light, we bring life to the best ideas.
  • Founded in 2006 and headquartered in Chicago, we are a technology solutions consultancy that partners with organisations from early-stage startups to the world's largest companies.
  • We take on hard software challenges and turn them into durable results.
  • We build agentic products, the platforms they run on, and the engineering and design at every layer.
  • Our commitment to quality means we deliver solutions we’re truly proud of, while our curiosity sparks innovation and breakthrough thinking.
  • 8th Lights thrive in an environment that champions continuous education, fueling our growth through mentorship and hands-on work.
  • We foster an open, collaborative culture grounded in honesty that builds trust, and believe true success is measured by the outcomes we create for our clients.
  • If this kind of work and our kind of people energises you, you’ve found the right place.
  • We are a distributed team across the United States, Canada, and the United Kingdom, with hubs in Chicago, London, Los Angeles, New York, and Seattle.
  • Employees working from our London hub follow a hybrid model, which includes a minimum of one day per week in our Waterloo Office. This co-working day is designed to encourage collaboration and further strengthen our community.
  • In most cases, our consulting engagements do not require travel.

Equal Opportunity

  • Building a truly diverse, equitable, and inclusive workplace is an ongoing journey, and we’re excited to keep learning and growing together.
  • We have a proud tradition of hiring talented colleagues with real-world career experiences.