Senior Platform Engineer

RightCard Payments Limited

Job Overview

Location

London

Job Type

Full-time

Full Job Description

📋 Description

• Design, build, and own our internal developer platform: a self-service, AI-powered environment that treats internal engineers as your customers and makes their experience of building on our cloud infrastructure genuinely fast and frictionless.
• Touch everything from cloud cost efficiency to developer tooling to the golden paths that let product teams ship without waiting on ops tickets.
• Design and build a self-service internal developer platform - golden paths, templates, guardrails - so engineers can provision, deploy and operate services without raising a ticket.
• Embed AI-driven automation into the platform: intelligent cost optimisation, anomaly detection, auto-remediation and developer productivity tooling that actually gets used.
• Own cloud infrastructure on AWS - architecture, cost efficiency, reliability and security posture - with clear metrics and accountability for outcomes, not just uptime.
• Act as the internal product manager for the platform: talk to engineers regularly, collect requirements, prioritise by impact on developer velocity and run a visible roadmap.
• Set and enforce platform standards - IaC, CI/CD pipelines, observability, secrets management - turning good practice into the default, not the exception.
• Identify and fix the biggest sources of friction in the engineering workflow, using data to prioritise and presenting findings to engineering leadership.
• Work lean and autonomously: this is a high-ownership role on a small team, so you will need to push things to production yourself, not coordinate others to do it.

🎯 Requirements

• Proven track record building an internal developer platform or developer experience function from scratch - not just maintaining one someone else built.
• Deep AWS expertise: you have designed cost-efficient, production-grade cloud architectures and you can defend every line of your Terraform.
• Strong DevOps and platform engineering fundamentals: Kubernetes, CI/CD, observability stacks, IaC, and the judgement to know when to use each.
• Experience treating internal engineers as customers - gathering requirements, running a backlog, measuring adoption - not just shipping tools and hoping people use them.
• Comfortable working without a spec: you have operated in fast-moving environments where you set the direction as much as you follow it.
• Proficient in at least one scripting or backend language (Python, Go, or equivalent) and confident building automation and tooling, not just configuring managed services.
• You actively build AI-powered tooling into platform and infrastructure workflows - cost anomaly detection, intelligent alerting, automated runbooks - not just use AI in your editor.

🏖️ Benefits

• Love shouldn’t be expensive, yet those working hardest for their families often face predatory fees and banking exclusion. We're changing this.
• At LemFi, you won’t be just a cog in a machine. Whether designing products, scaling operations, or telling our story, you’ll tackle complex challenges with real, immediate impact.
• Your work goes beyond metrics - it puts money back in families’ pockets and offers access to the previously excluded.
• Join us to make a meaningful difference, where high performance is a lifeline for millions.

Skills & Technologies

Python

AWS

Kubernetes

Terraform

Android

Senior

Onsite

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RightCard Payments Limited

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About RightCard Payments Limited

RightCard Payments Limited operates Lemfi, a digital remittance platform enabling immigrants in the UK, Europe, Canada and the US to send money to Africa, Asia and Latin America quickly and at low cost through mobile apps and local payout networks.

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