Senior Backend Engineer

Skillsearch; City Of London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A tech-focused organization is seeking a Senior Backend Engineer to shape meaningful products in education and play. The ideal candidate will have over 5 years of backend development experience, proficiency in AWS serverless architectures, and a passion for mentoring. This role offers flexible hybrid working with opportunities to contribute to high-impact product delivery.

Qualifications

• 5+ years of backend development experience.
• Strong experience working in cross-functional product teams.
• Advanced knowledge of AWS serverless architectures and experience with DynamoDB and MySQL.

Responsibilities

• Taking ownership of the backend codebase, ensuring high code quality.
• Collaborating closely with the Tech Lead and product team to deliver scalable architecture.
• Mentoring junior developers and contributing to a culture of creativity and learning.

Skills

Backend development

Cross-functional teamwork

AWS serverless architectures

TypeScript

Infrastructure-as-Code

Tools

AWS CDK

DynamoDB

MySQL

S3

CloudFront

Job description

Are you an experienced Senior Backend Engineer looking to shape meaningful, mission-driven products at the intersection of education and play?

This is an opportunity to join a collaborative, fast-moving development team building modern, scalable solutions that support both direct-to-consumer and school-focused experiences. Based in Copenhagen with flexible hybrid working, this role is ideal for someone who thrives in hands‑on engineering, cross-functional teamwork, and high-impact product delivery.

What you’ll be doing...

Engineering & Delivery

• Taking ownership of the backend codebase, ensuring high code quality, test coverage and documentation.
• Translating product requirements, wireframes and user stories into performant, maintainable backend solutions.
• Collaborating closely with the Tech Lead, product team and platform engineers to deliver scalable architecture.
• Building and releasing high-quality features on schedule with a strong focus on performance and efficiency.

Collaboration & Communication

• Working closely with cross‑functional teams including product, UI/UX, design and remote platform teams.
• Supporting clear documentation and communication for smooth collaboration across locations.
• Participating in joint planning, code reviews and shared backend initiatives.

Quality & Best Practices

• Contributing to code reviews, CI processes and internal engineering standards.
• Promoting clean code, refactoring opportunities and continuous improvement.
• Helping maintain development conventions and technical best practices across the team.

Growth & Mentorship

• Keeping up to date with evolving backend technologies and sharing learnings with the team.
• Mentoring junior developers and contributing to a culture of curiosity, creativity and learning.

What we’re looking for...

• 5+ years of backend development experience.
• Strong experience working in cross‑functional product teams.
• Advanced knowledge of AWS serverless architectures (Lambda, API Gateway) and experience with DynamoDB and MySQL.
• Hands‑on experience with AWS CDK for Infrastructure‑as‑Code.
• Advanced proficiency in TypeScript and frameworks such as TSOA, with experience delivering robust RESTful APIs and OpenAPI/Swagger documentation.
• Practical knowledge of S3 and CloudFront for storage, delivery and optimisation.
• Ability to work independently while aligning with wider architectural and product goals.
• Comfortable with early‑stage discovery, prototyping and dealing with ambiguity.
• Experience with educational platforms, games or mission‑driven digital products is a bonus.
• Must be based in or near Copenhagen.

If you’re a senior backend engineer who loves building purposeful products and wants to help shape next‑generation learning experiences, we’d love to hear from you.Apply now, or email Alfie Brear - [e-mail]