Senior Staff Engineer – Transaction Platform

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🔥 0 minutes ago

🇬🇧 United Kingdom – Remote

💵 £131.7k / year

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

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tem

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2021

⚡ Energy

🛍️ eCommerce

☁️ SaaS

Energy • eCommerce • SaaS

tem is a company that empowers businesses to save on energy costs by directly purchasing from renewable energy generators. With its innovative RED™ product, tem simplifies the energy procurement process, offering transparency and a streamlined portal for managing contracts, quotes, and billing. The company aims to reduce the expense associated with traditional energy suppliers, enabling clients to cut energy costs by up to 25% while supporting the transition to renewable energy. tem's mission is to create accessible renewable energy solutions for all businesses, promoting sustainability and fair pricing within the energy market.

📋 Description

• Own and ship complex deliveries. Lead high-impact improvements across Rosso's pricing and deal-flow workflows — improving correctness, operability, and scalability as volume and complexity grow. You drive these from design through to production. • Make architectural decisions that stick. Design and evolve a stateful, event-driven system where domain logic is the primary source of complexity. Create clear domain boundaries and prevent the kind of drift that compounds over time. • Partner with ML and Data Science. Work closely with our ML and Data Science teams on integrating forecasting, optimisation, and pricing models into Rosso's core workflows. You don't need to be an ML practitioner — but you'll be a genuine technical partner in how models land in production. • Lead across teams. Drive cross-functional initiatives spanning engineering, product, data, and commercial stakeholders. Align people around a technical direction and deliver. • Raise the bar. Mentor Staff and Senior Engineers, strengthen observability and testing practices, and act as a trusted technical voice to engineering leadership. • Plan for scale. Architect systems for high-volume quoting activity and large customer counts — anticipating bottlenecks before they emerge.

🎯 Requirements

• You operate at Staff+ level with a track record of organisation-wide impact. You've owned major technical initiatives at a high-growth startup and can point to what changed because of it. Not just influence — shipped outcomes. • You have deep application architecture experience in complex domains. You've designed and evolved stateful distributed systems — APIs, event-driven architectures, data systems — where business logic is the hard part. You know what domain drift looks like and how to prevent it. • You're comfortable working in Python. Our codebase is Python. You don't need to be a Python specialist, but you should have meaningful exposure to production Python systems and be confident contributing to and reviewing Python code from day one. • You're strong with AWS serverless architecture. Hands-on experience with Lambda, API Gateway, DynamoDB, and event-driven, asynchronous workflows — operated in production and learned from failure. • You can drive to a concrete decision under ambiguity. You ask sharp questions to narrow the problem space, commit to a direction, and take responsibility for the outcome. You don't narrate a methodology — you execute one. • You connect technical decisions to business outcomes. Technical authority and business accountability aren't in tension for you — they're the same thing. • You lead cross-team work. You've run initiatives that span engineering, product, data, and commercial stakeholders — and you've delivered them, not just coordinated them.

🏖️ Benefits

• Competitive salary - We review salaries twice a year using real-time market data, with transparent, consistent pay for the same role and level. • Stock Options - everyone on the team has ownership in our mission. • 25 days holiday + public holidays - Swap public holidays for ones that matter most to you. Plus, get an extra day off for your birthday 🎉. • Remote & flexible working - We’re fully remote with clear core hours, and no internal meetings on Friday afternoons. • Home working & wellbeing budgets: • - Up to £1,200 / €1,200 annually to upgrade your remote setup (co-working passes, equipment, etc.). • - Up to £150 / €150 monthly on anything that supports your wellbeing - from therapy to gym memberships to meditation apps.