Senior Platform Infrastructure Engineer

🕒 March 18

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Onyx Capital Group

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2016

💸 Finance

💳 Fintech

⚡ Energy

Finance • Fintech • Energy

Onyx Capital Group is a leading provider of financial services specifically focused on the oil derivatives market. They offer a comprehensive suite of solutions including brokerage, liquidity provision, and access to proprietary data through their Flux Terminal. Their mission is to democratize market access for traders of all levels, providing expert analysis, training, and tools to effectively manage oil price risks and navigate the complexities of the global oil market.

📋 Description

• Establish the Sri Lanka engineering hub and anchor the team’s cloud and reliability function • Own the cloud infrastructure that underpins the live trading systems • Respond to incidents and drive automation • Build reliability and tooling that the business depends on around the clock • Provide critical coverage during Singapore business hours and the early Dubai / UK hours

🎯 Requirements

• 5–10+ years in a cloud infrastructure or platform engineering role • Microsoft Azure required — compute, networking, storage, and managed services; comfortable designing, deploying, and operating cloud environments at scale • Infrastructure as Code: proven Terraform experience including state management, modules, and multi-environment deployments — treating infrastructure as versioned, reviewed software • Kubernetes in production — deploying and managing containerised workloads, troubleshooting pod and cluster issues, and understanding networking and storage within Kubernetes • Python required — scripting for automation, operational tooling, monitoring, and process improvement • Source control and CI/CD: GitHub, Azure DevOps, or GitLab, including branching, PR workflows, and pipeline configuration • Incident response experience — able to diagnose, triage, and communicate issues clearly under pressure • Highly self-directed — able to prioritise independently, manage your own workload, and escalate appropriately without needing day-to-day oversight • Customer-obsessed approach to platform reliability — treats internal engineering teams and traders as users, takes their pain points seriously, and drives improvements without being asked • Experience providing remote infrastructure support to distributed engineering teams — comfortable being the point of contact for platform issues across time zones and communicating status and resolution clearly • Strong written and spoken English — essential for asynchronous communication with the UK team across time zones, including incident reports, runbooks, and technical documentation • Experience working with globally distributed teams is strongly welcomed; comfortable collaborating across time zones and cultures in a fast-moving environment • **Nice to Have** • Monitoring and observability tooling — Prometheus, Grafana, Azure Monitor • Security and compliance in cloud environments • Cloud cost management and optimisation • AWS experience alongside Azure • Prior experience in financial services or fintech, or a genuine interest in financial technology and capital markets — not required, but candidates who are curious about the domain tend to thrive here • C# or other object-oriented programming experience — C# particularly advantageous given our existing platform stack • Experience writing and maintaining runbooks, incident post-mortems, and knowledge base documentation for distributed teams