Senior Blockchain Mobile Engineer - Contractor (Kotlin/Unity)

Lazer is a world-class digital product studio composed of 80+ senior engineers and designers with backgrounds from companies like Apple, Google, Coinbase, and more. With our product experience, we have designed, engineered, and grown products from $0 to $200M in revenue.

Clients seek out our help because we have the talent to deeply understand their needs and provide industry, technical, or product insights that are uniquely valuable to their efforts. Our clients range from early-stage startups and venture studios to recognizable commerce brands and exciting enterprises. Some of our notable clients include Google, Shopify, Coinbase, Alchemy, Hinge, OVO, DIMO, and more.

We are a remote-first organization headquartered in Toronto, Ontario, with employees worldwide. We believe in providing the best experience possible for all Lazerites by fostering a strong community through regular events, company vacations, competitive compensation, unlimited PTO, and more!

Join Lazer and help us solve problems and build the next generation of products!

Lazer Crypto is a specialized team within Lazer, comprising more than 20 full stack, web3 native engineers dedicated to building modern dApps and web3 solutions. This team helps founders and growing teams accelerate their product launches across various blockchain ecosystems. Our notable web3 clients include Berachain, Base, Privy, Polymarket, Uniswap, Alchemy, and others. Our team is distributed across North America, combining deep technical expertise with a commitment to being kind, supportive collaborators who build exceptional products.

Who You Are

• 5-8 years of professional experience in software development, with at least 2 years focused on blockchain and crypto projects.

• Advanced expertise in Kotlin for Android development and/or Unity for cross-platform mobile application development.

• Proficiency implementing sophisticated animations using Android's native animation frameworks or Unity's particle and animation systems.

• Strong knowledge of TypeScript, React, and Node.js, with demonstrated experience integrating web3 technologies into mobile applications.

• Experience designing and maintaining SDK packages for Android (Kotlin) and/or Unity to enable seamless developer adoption and integration.

• Deep knowledge of mobile crypto products, with expertise creating innovative experiences in DeFi, NFTs, GameFi, and other web3 verticals.

• Advanced understanding of Web3.js, Ethers.js, and mobile-optimized blockchain interactions.

• Expert knowledge of mobile app performance optimization, memory management, and security best practices for handling private keys on mobile devices.

• Problem-solver who thrives in consulting environments, enjoys technical challenges, and delivers exceptional mobile experiences.

• Self-sufficient, autonomous engineer who takes ownership of projects with minimal supervision.

What You'll Do

• Design, architect, and implement sophisticated mobile dApps and blockchain applications for industry-leading clients across DeFi, NFTs, gaming, and infrastructure projects.

• Develop cross-chain mobile applications with smooth, performant blockchain interactions across Ethereum, Solana, and emerging L1/L2 ecosystems.

• Create frictionless wallet experiences with optimized connections, transaction signing flows, and secure key management solutions for mobile.

• Collaborate with founders and technical leaders to shape mobile blockchain strategy and implementation roadmaps.

• Make critical technical decisions ensuring scalability, security, and exceptional user experiences on Android and/or Unity platforms.

• Deliver high-quality code that meets performance benchmarks and security requirements.

• Stay at the forefront of web3 mobile technologies, experimenting with emerging solutions and bringing innovations to client projects.

Benefits & Perks

• 🌐 Work From Anywhere: Choose your workspace — all you need is strong wifi and a passion for building!

• 🧘‍♂️ Work / Life Balance: We believe in our team’s ability to have it all; a great career, and time to unplug and live…you know...life.

• 💪 Flexible Employment: Want to work full time or on contract? You choose! Work with us in the way that suits you best, with pay that's competitive.

• 🏖️ Unlimited PTO: Everyone needs a break. Take at least 15 days off a year, and more if you need—just be cool about it and keep the team in mind.

• 🎉 Regular Team Retreat: Join us for a week of team bonding at amazing destinations. Recent trips include the Dominican Republic, Cancun, and Hawaii — plus ones welcome.