Senior Software Engineer

Bezos.ai

Senior Software Engineer building the global fulfillment platform for e-commerce brands at an AI-native startup. Lead core services and mentor engineers while embracing AI in development.

Posted 7/6/2026full-timeRemote • 🇬🇧 United KingdomSeniorWebsite

Tech Stack

Tools & technologies

AWSCloudGoReactTerraform

About the role

Key responsibilities & impact

You'll become a cornerstone of our engineering team and help build the platform that powers global fulfilment - orders, inventory, shipments and returns flowing across our network every day
Reporting directly to the Head of Engineering, you won't just write production-grade code: you'll own core services end-to-end, mentor other engineers, influence the big technical decisions, and help shape how we build
Build the core platform. Design, develop and maintain scalable, secure services and APIs in our serverless cloud environment, predominantly in Go and React
Own it end-to-end. Take domain-specific services from architectural design through to deployment, monitoring, and investigating and fixing the root causes of issues - you build it, you run it
Build with AI. Use modern AI-powered dev tools (Claude Code, Cursor, GitHub Copilot) every day to ship faster, and help set the standard for how we engineer with AI
Champion engineering excellence. Raise the bar on development workflows, testing, deployment and observability. Release small, fast and often - and keep the code simple, because the best code is the code you don't have to write
Level up the team. Mentor other engineers through code reviews, pair programming and design discussions, and help shape our engineering culture and best practice
In Your First 90 Days, You Will: Get to know the platform end-to-end and ship your first production code in your opening weeks
Take ownership of a domain-specific service, from design through to deployment and monitoring
Establish your AI-assisted engineering workflow and share what's working with the team
Start raising the bar through code reviews, pairing and design discussions

Requirements

What you’ll need

2+ years in a senior software engineering role, ideally in a startup environment
Strong backend fundamentals and deep commercial experience with Go - or a strong systems background in another language and the drive to master Go fast
Extensive experience with AWS, event-driven architecture and serverless infrastructure like AWS Lambda
Fluent designing and building RESTful APIs, with a solid grasp of microservice and serverless architectures
AI-native - you already use AI-powered dev tools (Claude Code, Cursor, Copilot) and are genuinely excited to build with them every day
A pragmatic builder with a knack for simplifying complex systems and shipping scalable solutions
A product-oriented mindset - you care deeply about solving real user problems, not just shipping output
Bonus Points (Nice to Have): Strong React / front-end experience
Terraform or other infrastructure-as-code
E-commerce, logistics or supply-chain exposure
Experience mentoring engineers or leading technical projects

Benefits

Comp & perks

Build the core platform that powers global fulfilment
Real ownership and unusually fast scope - a hands-on software developer role where you can shape your career path
An AI-native engineering culture where building with AI is the default, not an experiment
Remote-first team, meeting in person a couple of times a month
25 days holiday + 8 bank holidays
Mental health support through Spill, and a free Headspace subscription

ATS Keywords

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Hard Skills & Tools

Backend FundamentalsEvent-Driven ArchitectureServerless InfrastructureMicroservice ArchitectureTerraformReactE-Commerce SolutionsLogistics SystemsSystems DesignCode Review

Soft Skills

MentoringProblem SolvingCollaborationSimplifying Complex SystemsProduct-Oriented Mindset