Staff Software Engineer, Energy Systems & Integrations

tem; United Kingdom; Remote; GBP 89,000 - 120,000; Full time

Benefits offered by this job

Stock options

25 days holiday + public holidays

Remote & flexible working

Wellbeing budgets

Remote setup budget

Job summary

tem is hiring a Staff Software Engineer to join Origination & New Products, a small squad inside Sell Side Growth. This is a deep, hands-on IC role focused on architecture-level decisions and integration with Rosso, Data, and Billing.

You will own complex backend systems, help ship new product categories, and contribute to a pricing and tendering flow. The role emphasizes autonomy, technical depth, and delivering scalable software in a fully remote UK setup.

Qualifications

• Deep technical depth in backend and systems design, owning architecture-level decisions on complex, integration-heavy systems.
• Comfortable in our core stack: Python, AWS serverless (Lambda, API Gateway, DynamoDB, EventBridge); React/TypeScript exposure is a plus.
• Able to take a defined slice of an ambiguous problem and turn it into a shippable plan.
• Experience delivering work where a critical dependency sits with a team you have no authority over.
• Proven product delivery experience as a Full Stack or Backend Engineer in a startup or fast-paced product environment.

Responsibilities

• Go deep on hard systems: Own architecture-level decisions on integration-heavy systems.
• Build for ambiguity: Turn undefined problems into shippable plans within squad direction.
• Work across boundaries: Deliver dependencies with other teams without owning the relationship.
• Build with impact: Backend-first, able to move into React/TypeScript front end when needed.
• Maintain high standards: Write clean, well-tested code and participate in code reviews.

Skills

Backend architecture

Python

AWS serverless

React/TypeScript exposure

Tools

Rosso pricing engine

Billing system

Data platform

Job description

tem is hiring a Staff Software Engineer to join Origination & New Products, a small squad inside Sell Side Growth. This is a deep, hands-on IC role focused on architecture-level decisions and integration with Rosso, Data, and Billing.

You will own complex backend systems, help ship new product categories, and contribute to a pricing and tendering flow. The role emphasizes autonomy, technical depth, and delivering scalable software in a fully remote UK setup.