Senior Staff Engineer – Origination & New Products

tem

Lead technical direction and integrations for Origination & New Products at tem, innovating energy transactions. Engage with commercial stakeholders and mentor engineers while delivering new product categories.

Posted 7/16/2026full-timeRemote • 🇬🇧 United KingdomSenior💰 £117,850 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates proven technical leadership in delivering new product categories, with a strong ability to translate ambiguous problems into actionable plans. Proficient in mentoring engineers and driving technical direction while maintaining hands-on involvement in design and execution.

Highest-signal resume keywords

Technical LeadershipPython ProgrammingAWS Serverless ArchitectureCommercial JudgementMentorship

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Technical LeadershipComplex Initiative ManagementSystem DesignIntegration DevelopmentEvent-Driven Architecture

Soft Skills

Strong CommunicationMentoring

Tools & Technologies

AWS LambdaAPI GatewayDynamoDBEventBridge

Industry Keywords

New Product DevelopmentCommercial StakeholdersOrigination PipelineDeal Risk Assessment

Tech Stack

Tools & technologies

AWSDynamoDBPython

About the role

Key responsibilities & impact

Own the delivery for new product categories
Lead technically through execution - design, build, and ship alongside the squad, not just direct it.
Translate ambiguous, commercially-driven problems into a shape the squad can deliver against.
Partner with commercial and product stakeholders to keep new-product work tied to real pipeline outcomes.
Mentor the squad's engineers and raise technical standards, without owning their performance or career progression.
Drive the Origination & New Products squad's technical direction on deep integrations with other internal services
Stay hands-on: design, build, and review the hardest parts of the new-product build sequence yourself.
Take a company target ("grow origination volume through new products") and break it into a sequenced, deliverable plan without needing to be told how.
Design systems for categories that don't exist yet at tem - Unlocking TWh’s of new pipeline - where the spec is being written as you go.
Make judgement calls on commercial risk in deal-gating tooling, not just deliver what's asked.
Prevent domain drift as new product categories are added, keeping shared language and clear boundaries.
Work directly with the Engineering Manager and commercial stakeholders to keep new-product delivery tied to origination pipeline outcomes, not just shipped features.
As Sell Side expands internationally, represent the technical view in conversations with new-market stakeholders and partners.
Mentor engineers in the squad and raise engineering standards, while staying on the individual-contributor track.

Requirements

What you’ll need

Proven technical leadership at Staff or Senior Staff level, with evidence of leading complex, ambiguous initiatives to real business impact - not just technical execution in isolation.
Comfort operating without a spec: able to take a broad, undefined opportunity and shape it into something buildable.
Sound commercial judgement - able to reason about deal risk and revenue impact, not just delivery.
Deep enough platform fluency to integrate against a complex, business-critical system
Track record leading a squad or team technically through direction and mentorship, without necessarily holding formal people-management responsibility.
Strong written and verbal communication - comfortable being the technical voice in front of commercial stakeholders and, over time, external partners.
Comfortable in our core stack: Python, AWS serverless (Lambda, API Gateway, DynamoDB, EventBridge), and event-driven architectures - the same stack Rosso and the rest of Sell Side build on.

Benefits

Comp & perks

Competitive salary - our current band for this role is £117,850 or equivalent in local currency.
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.