Senior Product Engineer

Colossal; United Kingdom; On-site; GBP 50,000 - 80,000; Full time

Job summary

A technology company in the United Kingdom is seeking a Mid-Senior Level Engineer to build and own core backend services for commerce infrastructure tools. The role demands strong experience in building service-based software products and requires a generalist mindset with a full-stack expertise. The ideal candidate will have a proactive approach to integrating generative AI into product experiences. Interested applicants should send their resume to [e-mail].

Qualifications

• 5+ years experience building service-based software products end to end.
• Generalist mindset with experience across the full stack.
• Strong understanding of cloud infrastructure and developer tooling.

Responsibilities

• Build and own core backend services for commerce infrastructure tools.
• Integrate generative AI into real world product experiences.
• Play a key role in software architecture design and research.

Skills

Building service-based software products

CI/CD

Cloud infrastructure

Observability

Developer tooling

Strong communication

AI-based tools

App store paradigms

Job description

This range is provided by Colossal. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

Direct message the job poster from Colossal

Founded by Paul Anthony, creator and co-founder of Primer (Series B, $425M valuation), Colossal is building at the intersection of generative app development and commerce infrastructure. Think: Lovable for commerce, but for non-developers.

We’re backed by Tier 1 investors: Seedcamp, 10x Founders, Connect Ventures, and are planning to raise our seed round later this year.

Why Colossal?

The digital goods market is projected to rise to $400+ billion by 2030, with some segments experiencing double and triple digit growth. The software landscape is rich with tools and services to help businesses build their ideal commerce solutions, but these are fragmented and demand deep knowledge of the commerce value chain to get the most out of.

We’re building an ambitious new platform for digital goods sellers to craft their ideal commerce experiences for their unique customer base. We’re still in stealth mode, so get in touch to learn more. 🥷

What we’re looking for

• 5+ years experience building service-based software products end to end, ideally at early-stage startups
• Generalist mindset with experience across the full stack
• Strong understanding of CI/CD, cloud infrastructure, observability, and developer tooling
• Comfortable owning products and features end to end, and taking responsibility for performance and optimisation
• Strong communicator, able to distribute knowledge across the team effectively through documentation, talks, demos and presentations
• A current understanding of AI-based tools, methods and paradigms
• Familiar with “app store” paradigms and development frameworks (bonus if in commerce), and know what good looks like from a developer experience standpoint

What you’ll do

• Build and own core backend services for our commerce infrastructure tools, including billing, workflows, and financial operations
• Build features that integrate generative AI into real world product experiences
• Play a key role in software architecture design, including research, writing POCs for further refinement
• Implement Figma-based designs, motion and UX with precision

How we hire

• Initial call with the founder (30 mins)
• Complete a take home exercise
• Task review and pair programming with a team member (1 hour)
• Meet with the product team for 2-way interview (30 mins)
• Offer stage (including reference checks)

To apply, please send your resume and a brief intro describing your interest to: [e-mail]

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Engineering and Information Technology

Industries

• Software Development
• Financial Services

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