Senior Platform Engineer

Job Overview

At Moss, we give finance professionals the power to automate their day-to-day and make forward-thinking decisions. Our team and culture make us unique — we’re driven by impact and growth, where every one of us strives to learn and excel. Recognised by Sifted’s Rising 100 and LinkedIn's Top Startups, we’re here to help propel your career and together, make Moss a lasting success.

Moss is making a significant investment in AI tooling - and this role exists to turn that investment into measurable outcomes. As the first dedicated hire focused on agentic developer experience, you will build the tools, modular skills, guardrails, and infrastructure that help engineers across the company move faster and more safely with AI.

You will report to the Director of Engineering and sit within a Platform Engineering team of around eight people, working alongside Platform, Data, and AI Engineers. The problems here are rarely well-defined upfront - this role is for someone who identifies what needs solving, not someone who waits for a Jira ticket.

Your responsibilities

• Build a developer productivity measurement platform integrating GitHub, Linear, Slack, and CI/CD signals into a coherent view of delivery flow


• Identify and remove friction from engineering workflows: slow pipelines, poor feedback loops, unclear ownership, and noisy alerting


• Define, deploy, and iterate on AI tooling for local development, including IDE integrations, agentic tools, MCP servers, and model integrations such as Claude and Codex


• Build the guardrails that make AI adoption safe: prompt logging, data classification boundaries, an approved model catalogue, and usage observability


• Understand the workflows of engineering and product teams to surface bottlenecks, systemic issues, and drive improvements with their buy-in.


• Maintain Kubernetes and microservices credibility across the platform — this is an engineering role, not programme management.


• Write documentation that engineers actually use: runbooks, adoption guides, and decision records

About you

8+ years of experience in cloud-native startups, FinTechs, or high-volume engineering environments

3+ years working in a team focused on developer experience

1-2 years using modern agentic tools in a professional setting

3+ years of hands-on Kubernetes experience or managing Cloud infrastructure.

5+ years working with microservices architecture

Business fluent in English (C1 or above)

Skills and Attributes

• Comfortable navigating ambiguity and making decisions as new information emerges, without waiting for the problem to be fully defined


• Able to identify what needs solving, not just execute what has been scoped


• Brings rigour to fast-moving tooling decisions, weighing productivity gains against security and compliance constraints in a regulated environment


• Builds trust with engineering teams through hands-on presence, not top-down mandates

About Moss

Moss is a SaaS scale-up founded in Berlin, with a team of 300+ people from 50+ nationalities in 5 offices across Europe. Our ambition is bold: to power every SMB’s spend across Europe - fully digital, AI-driven, and seamlessly integrated for complete control. To date, over 5000 businesses in Germany, Netherlands and the UK use Moss’ leading spend management product, with modules such as corporate cards, accounts payables, employee cash reimbursements and procurement.

Moss has raised a total of €180 million in funding and is backed by the most renowned tech investors including Valar Ventures, Tiger Global, Global Founders Capital, Cherry Ventures and A-Star.

Benefits

Top-of-market compensation package, including equity. Our vibrant offices are at the heart of our culture, where in-person time fuels collaboration and connection over weekly breakfasts and Friday demos. Additional benefits include: 20 days “work from abroad”, 600EUR/GBP Learning & Development Budget, and other local benefits. Unless stated otherwise, benefits apply to full-time positions (interns and working students receive a tailored package).