Senior Full-Stack JS / TS Engineer

Role Overview

We’re looking for a Senior Software Engineer to help scale and improve an existing consumer and B2B product. You’ll work across the full stack on a live production system, collaborating closely with product and design in a pragmatic, startup environment. The role is hands-on, with a strong focus on code quality, delivery, and using modern tooling, including AI-assisted development tools like Claude Code.

Company Description

An AI-powered influencer marketing platform built for hospitality brands (hotels, restaurants, events, and experiences) and helps them connect with creators, launch and manage collaborations, and drive awareness and bookings in a way that’s designed to be simple, affordable, and effective – without needing a large marketing team.

Responsibilities

• Build and maintain front-end applications using React and TypeScript.
• Develop and enhance backend services and REST APIs using JavaScript/TypeScript.
• Work with and optimize data models and queries in MongoDB.
• Contribute to the scalability, reliability, and maintainability of an existing production system.
• Collaborate with product and design to deliver features for both consumer and B2B users.
• Review code, improve engineering standards, and help guide technical direction.
• Use AI-assisted coding tools (e.g., Claude Code) as part of your day-to-day development workflow.
• Support and mentor other engineers where appropriate.

Requirments

• 5+ years of professional software engineering experience.
• Strong experience with React and modern front-end patterns.
• Solid backend experience building and maintaining RESTful APIs.
• High proficiency in JavaScript and TypeScript.
• Experience working with MongoDB or similar NoSQL databases.
• Experience deploying and operating systems on Google Cloud Platform (GCP).
• Comfortable working on an existing codebase and improving it incrementally.
• Prior experience with consumer-facing and/or B2B products.
• Experience using modern developer tooling, including Claude Code or similar AI tools.
• Strong communication skills and ability to work effectively in a fully remote team.

Nice to Have

• Experience with distributed systems or scaling production applications.
• Familiarity with CI/CD pipelines and cloud-native tooling on GCP.
• Experience working in remote-first or async teams.
• Exposure to performance tuning, observability, or security best practices.

Working Conditions

Mon – Fri 9-5 (UK / London timezone)  at least 5-6 hours of daily overlap.

Stages

1. Initial HR Screening (10 min).
2. In-depth HR Interview (60 min).
3. Technical Validation (30 min).
4. Client Interview (30 min).
5. Job Offer.