Blockchain Engineer in London

Blockchain Engineer in London

London Full-Time 60000 - 80000 £ / year (est.) Working from home possible
Arena Entertainment

At a Glance

  • Tasks: Build and ship innovative blockchain products from scratch, focusing on dApps and smart contracts.
  • Company: Join a cutting-edge digital entertainment company revolutionising online platforms since 2021.
  • Benefits: Remote work, flexible hours, and a culture that values growth and innovation.
  • Other info: Embrace a curious mindset and collaborate asynchronously with a dynamic team.
  • Why this job: Be part of a pioneering team creating bespoke blockchain solutions in an exciting Web3 landscape.
  • Qualifications: 1-4 years in blockchain development with hands-on experience in Solidity and TypeScript.

The predicted salary is between 60000 - 80000 £ per year.

We’re a digital entertainment company creating engaging online platforms people love. Since 2021, we’ve been building something different. Our brands include MetaWin, WOW Vegas, BetZoo Media, Hit.com and Rolla, with more to come.

With teams in London, Malta, Gibraltar and Miami (launching 2025), each platform is designed to deliver unique, engaging, and innovative digital experiences. From immersive betting platforms to exciting casino games and interactive online entertainment, our brands deliver cutting-edge technology and user-focused design. Arena prioritises innovative technology, decentralised where possible, and builds with an AI‑first mindset. Not constrained by legacy systems, we are blue sky thinkers changing the landscape of digital entertainment.

We’re building a brand new, fully bespoke blockchain from the ground up. Not a fork. Not a clone. Every component — consensus, execution, networking, tooling — is being designed and written in-house. This is greenfield infrastructure engineering at its most ambitious.

We need an AI‑native, product‑minded Full Stack Blockchain Engineer to join the core team. You’ll be building and shipping blockchain‑powered products end‑to‑end: from the protocol layer and smart contracts through to backend infra and frontend UX. Our work spans gaming, DeFi and other emerging Web3 categories.

This is a hands‑on role for someone who lives and breathes Web3, ships fast, and embraces AI‑powered development to stay ahead. We’re especially excited about builders who already have real on‑chain projects under their belt and a hunger to grow fast.

Responsibilities

  • Build dApps end‑to‑end: design and deploy secure, gas‑efficient smart contracts; wire up backend infrastructure; deliver clean frontends that hide blockchain complexity.
  • Contribute to core chain development: write protocol‑level code in Rust, C++ and Python across consensus, execution and networking layers.
  • Ship products, not just code: collaborate on design, UX and incentive mechanics, contributing to product decisions as much as technical implementation.
  • Leverage AI daily: use the latest tools to accelerate development and broaden problem‑solving approaches.
  • Build and maintain indexing infrastructure, APIs and real‑time data pipelines.
  • Experiment and innovate: stay curious with new standards, chains and techniques, from cross‑chain deployments to tokenomics design.
  • Represent the team at hackathons and conferences and share your work with the ecosystem.

Technical Stack

This is a bespoke, ground‑up chain. No forks, no shortcuts. The stack reflects that.

Core Chain — Bespoke Protocol Layer

Systems: Rust|C++|CUDA (GPU acceleration)

Scripting / Automation: Python | Shell

All protocol components, consensus mechanisms, execution environments and networking are written in‑house. Familiarity with low‑level systems programming, memory safety and performance optimisation is essential.

Smart Contracts

Languages: Solidity (EVM)

Standards: ERC-20, ERC-721, EIP-4337 and modern extensions

Tooling: Foundry|Hardhat

Frontend

Languages: TypeScript|JavaScript

Frameworks: React|Next.js|Node.js

Web3 Libraries

Libraries: viem|wagmi|Privy|Dynamic|Across SDK

Infrastructure

Indexing: The Graph|Ponder|custom indexers

APIs: REST|GraphQL

Other: Cross‑chain bridges|RPCs

Bonus: Anchor (Solana/SVM)|Move (Aptos/Sui)|MEV|ZK proofs

Candidate Profile

  • 1–4 years of blockchain/Web3 development with at least one meaningful on‑chain deployment (professional, side project or hackathon).
  • Solid foundation in Solidity and TypeScript, with the ability to deliver complete products, not just isolated code.
  • Comfort working at the systems level: Rust and C++ experience is a strong advantage given our bespoke chain focus.
  • AI‑native: daily use of modern coding assistants (Claude, Cursor, Copilot, Windsurf, etc.).
  • Product sense: proven ability to think about usability and user experience, not just code correctness.
  • Previous experience at a blue‑chip protocol or well‑known project highly valued.
  • Hackathon experience or open‑source contributions a strong plus.
  • Strong English communication skills for async collaboration.

Location

Remote. Async‑first culture with overlapping working hours where possible.

What We Value

  • Growth mindset.
  • Curiosity, adaptability and eagerness to learn.
  • Strong in code, sharp on product.
  • A track record of building: shipped protocols, hackathon projects or ambitious side hustles.

Blockchain Engineer in London employer: Arena Entertainment

At Arena, we pride ourselves on being an innovative digital entertainment company that fosters a dynamic and inclusive work culture. As a Blockchain Engineer, you'll have the unique opportunity to work remotely within a forward-thinking team that values creativity and collaboration, while also benefiting from a strong focus on personal and professional growth. With access to cutting-edge technology and the chance to contribute to groundbreaking projects in the Web3 space, Arena is an excellent employer for those looking to make a meaningful impact in the digital landscape.

Arena Entertainment

Contact Details:

Arena Entertainment Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Blockchain Engineer in London

Join Local Tech Meetups

Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Arena Entertainment or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!

Contribute to Open Source Projects

Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Arena Entertainment.

Tap into Online Developer Communities

Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Arena Entertainment.

Explore Job Boards Specifically for Tech Roles

Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Arena Entertainment that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!

We think you need these skills to ace Blockchain Engineer in London

Blockchain Development
Smart Contract Development
Rust
C++
Python
Solidity
TypeScript

Some tips for your application 🫡

Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.

Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Arena Entertainment.

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Arena Entertainment and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!

Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!

How to prepare for a job interview at Arena Entertainment

Brush Up on Your Coding Skills

For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.

Know Your Tools and Frameworks

Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Arena Entertainment uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.

Showcase Your Projects

Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.

Prepare for Behavioural Questions

While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.