Backend Engineer

Setmixer Ltd.; Greater London; Hybrid; GBP 90,000 - 125,000; Full time

Job summary

Setmixer Ltd. is building cloud-native backends and IoT-enabled recorders to power live music experiences. We value independent work in small, agile teams, shipping reliable services with studio-quality multitrack recording capabilities.

The role combines Backend and DevOps work, focusing on AWS, TypeScript, and infrastructure-as-code. Remote work is available, with a strong preference for London/UK-based candidates.

Qualifications

• Experience architecting and maintaining cloud-native apps on AWS.
• Strong TypeScript skills and monorepo experience.
• Proficiency with SQL and Postgres; ability to write complex queries.

Responsibilities

• Architect, build and maintain backend systems powering Venue, Artist and Fan experiences.
• Collaborate with hardware and AI teams on the recorder IoT device backend.
• Work in a small, agile team to ship reliable, scalable services.

Skills

AWS

TypeScript

Serverless

Monorepo

SQL

Tools

SST

Pulumi

CDK

Terraform

Docker

Job description

At Setmixer, we're bringing live recordings back. Our mission is to make sure no live show is ever lost. We capture the raw energy and talent of live performances in studio-quality audio - we call it a \"setmix\": a high-quality recording of a show, just as it happened - unpolished, intimate, and real.

We're reviving the beloved tradition of live recordings for the digital age, building automated infrastructure that captures every show, every night, every artist with studio-quality multitrack recording (24bit/48kHz) and 12-hour turnaround times.

Artist-First: Music starts with the artist. So do we. Nothing gets shared, sold, or streamed unless the artist says so.

Access to All: Whether an artist has two fans or twenty thousand, we're here for you.

Inclusive Innovation: To us, innovation means building systems that include everyone: artists, venues, and promoters. Our revenue-sharing model reflects that.

The Role

This is a unique opportunity at the intersection of Backend and DevOps roles. You will architect, build, and maintain systems that power Venue, Artist, and Fan experiences of Setmixer, as well as collaborate with the hardware and AI teams on the backend of our growing recorder IoT device fleet.

This role is ideal for someone who enjoys working independently in small, agile teams and wants to make a meaningful impact on the music industry.

Location: Remote with a strong preference for London/UK-based candidates

Requirements

Solid experience architecting, building and maintaining cloud-native applications on AWS with TypeScript, using infrastructure-as-code frameworks like SST/Pulumi/CDK/Terraform

Proficiency with relational databases and writing SQL (preferably Postgres), using query builders or ORMs like Drizzle/Prisma/Kysely/TypeORM/etc.

You should feel comfortable with schema migrations and be unafraid to write custom queries to answer business questions

Good understanding of event-driven systems and cloud building blocks: message brokers, queues, APIs, tasks, logs, cron jobs, CDNs, etc., and how to use them on AWS

Good grasp of serverless vs container-based deployments and the involved trade-offs

Must have experience with AWS Lambda and Docker container deployment on AWS (ECS or others)

Solid TypeScript skills, preferably with experience of working in a monorepo setting with code sharing, using schema libraries like zod and domain-driven module segregation

Minimal familiarity with frontend stacks like React + Vite/NextJs, frontend deployment options, and client code options for accessing REST/RPC APIs

Bonus/Nice-to-have

Passion for music - while not required, a love of live music and understanding of the music industry and music production will help you connect with our mission

Experience with AWS IoT: MQTT messaging, Greengrass deployments, etc.

Hands-on experience with sync engines - technology behind apps like Figma and Linear

Experience with Google Cloud: BigQuery/Datastream for analytics pipelines, spinning compute engine instances for AI purposes

Strong Linux skills, comfortable with ssh

At Setmixer we’re using these technologies on the backend:

TypeScript

AWS

SST

Hono

Bun

Equal Opportunity & Inclusion

Setmixer builds diverse, inclusive teams reflecting the vibrant music community we serve. We welcome all backgrounds and evaluate candidates on skills, potential, and mission alignment. We're committed to Access to All in music recording and inclusive hiring practices.