Software Engineer

Sing King; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Job summary

Sing King, a fast-growing entertainment business in London, seeks a full-time Software Engineer to build fast, reliable web tools and apps within the Data & Tools team. You’ll help evolve our CMS, API, and front-end to scale with data and content workflows.

You’ll own CMS architecture, maintain the internal REST API, and prototype lightweight services that empower colleagues and fans. This hybrid role rewards initiative, attention to detail, and translating complex requirements into practical

Qualifications

• Experience designing scalable CMS architectures and APIs.
• Strong frontend development skills with modern frameworks.
• Familiarity with data workflows, validation, and automation.
• Solid security practices and secure coding fundamentals.

Responsibilities

• Lead the CMS architecture, scope improvements, and plan new features.
• Maintain and develop the internal REST API for CMS, tools, and data.
• Transform the CMS frontend for faster, intuitive user experience.
• Design automation workflows to reduce manual content production toil.
• Prototype lightweight web-apps and services for internal teams and fans.
• Collaborate with data experts to turn research into internal tools.

Skills

CMS architecture

REST API design

Frontend development

Data workflows

Security best practices

Tools

Git/GitHub

CI/CD pipelines

Python

PostgreSQL

React.js

Job description

Sing King is on a mission to delight millions of singers around the world through our portfolio of games and singing experiences across multiple platforms.

Our successful flagship YouTube channel welcomes over 14 million subscribers and 30 million unique viewers each month, and along with our latest Mobile Game release we are continuing to build innovative and exciting products that spread joy to singers wherever and whenever they sing.

We are a team of music lovers, game enthusiasts and entrepreneurial spirits. We are passionate about our vibrant and growing community of global singing fans. This is a unique opportunity to play a key role in the growth of an ambitious, nimble and fast‑growing entertainment business. Join us!

ABOUT THE ROLE

As our full‑time Software Engineer, you will help transform processes and develop fast, reliable web‑based tools and apps that deliver impact. This role is a great fit if you enjoy taking ownership of areas that don’t yet have clear answers, and turning problems into scalable, forward‑thinking solutions. You connect points of commonality across the business and wrap them into combined or complimentary solutions.

This role sits within the Data & Tools function, responsible for building the systems that allow Sing King’s data, content, and products to operate reliably and scale intelligently.

At the heart of Sing King is our CMS. It’s responsible for orders, data validation, third‑party reporting, distribution, and more. Under your guidance, you’ll evolve us from our existing combination of backend and frontend systems into a new bespoke solution incorporating an API currently being developed in Python (FastAPI with PostgreSQL) and a web‑app frontend in React.js or similar.

WHAT YOU’LL DO

• Lead the CMS architecture, the heart of the creation and distribution of our assets and data. In collaboration with the Senior Leadership you’ll define, scope, and plan improvements, new features, anticipating business needs before they happen.
• Maintain and develop our internal REST API that centralises business logic for the CMS, tools, asset management, data validation, and publishing of Karaoke content.
• Transform the CMS frontend to deliver a fast, intuitive experience, built around how people actually work.
• Design and build automation workflows that remove manual toil from content production, such as thumbnail generation, media transcoding, uploading, scheduling, playlist generation, web‑scraping and more.
• Prototype and develop simple light web‑apps and services that empower internal teams or service our fans, whether that’s Discord/Slack bots, or simple ways for the public to request songs and submit user‑generated content.
• Collaborate with Data experts to turn models and research into internal tools and help solve data quality challenges through fuzzy matching, LLM‑assisted enrichment, or other solutions.

WHAT YOU’LL BRING

• Organisation - Ability to manage multiple technical priorities with excellent time and project management.
• Agile approach - Can develop scrappy Proof of Concepts to pitch new ideas and generate buy‑in, as well as making swift pivots if business priorities change.
• Attention to detail - Can deliver accurate results that are key to decision‑making and maintaining high quality deliveries with our music industry partners.
• Creativity to solving problems - Able to translate complex business requirements into novel and practical designs, that make sure every need is taken care of.
• Security conscious mindset - Solid understanding of software engineering fundamentals, data privacy, and secure coding practices.

DESIRED SKILLS

• Version control & deployment practices – Strong experience with Git/GitHub and CI/CD workflows, with a focus on clean, reliable releases.
• Cloud & backend systems – Experience working with cloud platforms (e.g. Google Cloud Platform) and backend systems, including deploying and maintaining production‑ready web applications.

BONUS POINTS

• Passion for karaoke, rhythm games, or community‑led mobile games
• Experience with no‑code, low‑code platforms such as Retool.
• Experience with popular web scraping methods.
• Experience with PostgreSQL and BigQuery

HOW WE WORK

• We’re a small team, so we move fast and experiment often
• We believe in creative exchange and collaborative ownership
• We prioritise ideas that make our players feel something - joy, energy, expression
• We operate a hybrid working policy at Sing King and expect a balance of office and home working for this role - our office is in Farringdon, London
• We offer a competitive salary and benefits package

We’re committed to building a diverse and inclusive team. We strive to create an environment where everyone feels they belong, and we welcome applications from people of all backgrounds, experiences, and identities. If this role excites you, we encourage you to apply, even if your experience doesn’t align perfectly with every requirement.

We are dedicated to making our recruitment process accessible to all. Please let us know if you require any adjustments (for example, interview location, structure, or materials in an alternative format).