Engineering & Operations Lead

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OnBuy

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2016

🏪 Marketplace

🛍️ eCommerce

🛒 Retail

💰 Debt Financing on 2021-07

Marketplace • eCommerce • Retail

OnBuy is a UK-based online marketplace that offers a wide variety of products ranging from home and garden essentials, health and beauty products, electronics, and more. Unique in its approach, OnBuy does not sell its own products but provides a platform for small businesses and trusted brands to reach a broad audience. It is known for offering cashback on all purchases, enhancing customer savings with every transaction. With over 35 million products across diverse categories, OnBuy positions itself as a trusted and fair platform for both buyers and sellers, ensuring transparency and protection for each transaction.

📋 Description

• Define and enforce clear ownership boundaries across the engineering team, by domain (Buyer / Seller / Platform), holding every contributor accountable regardless of sourcing model (permanent or partner-led) • Track and report Throughput and Instability per domain, so standards are visible and enforceable, not aspirational • Hold delivery consistent through every point of disruption the transformation introduces: nearshore/offshore onboarding, domain moves, headcount change • Partner with the Transformation Lead to ensure structural change doesn't degrade live delivery • Own the engineering standard across both the current platform and the target state • Review the Transformation Lead's roadmap for engineering-standard and operational impact before commitments are made • Own how modern and legacy architecture coexist during migration, guarding against legacy practices and assumptions leaking into the new platform • Lead and develop engineering capability across squads (including DevOps and platform functions) • Coach and support Tech Leads to build consistent leadership standards across teams • Foster a culture of ownership, accountability, and continuous improvement • Identify capability gaps and support hiring, development, and succession planning • Own resource planning, including capacity, skills mix, and on-call structure • Establish and run a two-tier resolver model: Ops on-call for standard support and runbook-driven issues, Product Engineering (Buyer/Seller) as the resolver group for genuine engineering problems • Build rota depth (minimum 3 engineers per domain, or full team where smaller) so resolution doesn't depend on any one individual • Drive a genuinely blameless Post-Incident Review culture, building on the existing Incident Management SOP • Embed secure coding practice, SAST/DAST scanning, and OWASP-aligned standards into the engineering definition of done • Surface security risk in business terms (exposure, cost to fix vs cost to carry) and route it to the appropriate decision-maker, rather than carrying risk-acceptance decisions unilaterally • Identify, log, and manage technical debt within day to day delivery • Escalate strategic trade-offs (rebuild vs patch, roadmap sequencing) to the Solution Architecture Lead, owning visibility and routine remediation rather than the strategic call • Work with Product Owners (Buyer and Seller) to translate roadmap items into scoped, sequenced engineering execution • Own technical design and implementation choices day to day, operating within established architectural patterns without requiring sign-off for routine work • Escalate to Product Owner Heads where scope or trade-off decisions sit above the Product Owner's remit

🎯 Requirements

• Strong full-stack engineering background with Laravel/PHP, comfortable across monolith and microservices patterns • People leadership: hiring, mentoring, performance management • Direct experience leading an engineering transformation, restructuring teams, process, or architecture, while keeping a live, revenue-generating platform running throughout • Strong API design and system architecture experience • Production experience with MySQL, Couchbase or MongoDB, and Redis • GCP, deploying and operating live services at scale • Experience balancing legacy support against parallel investment in a target architecture • Startup or scale-up experience, comfortable operating with ambiguity and limited resource • Has lived through a MACH or composable architecture migration on a live, trading platform, not greenfield, and carries the scars: knows where the pain actually shows up (data consistency across services, search/catalogue re-platforming, vendor lock-in regret) • Multi-cloud or cloud-agnostic experience, enough to have an informed, opinionated view on GCP versus alternatives rather than default loyalty to whatever's currently in place • Comfortable working beyond PHP where the future stack calls for it (e.g. Node.js, Go, Python)

🏖️ Benefits

• Company Equity- In return for helping us to grow, we’ll offer you company equity, meaning you own a piece of this business we are all working so hard to build. • 25 days annual leave + Bank Holidays • 1 extra day off for your Birthday • Employee Assistance Programme • Perks at Work benefit platform • Opportunities for career development and progression