Java Jobs in Web3

Senior Full-stack Engineer (remote)

About Helius

Helius is a leading developer platform on the Solana blockchain, dedicated to inspiring and accelerating the creation of crypto-powered software. Customers like Coinbase, Jupiter, and Phantom use Helius to power their applications on Solana.

We’ve raised over $34m from Haun Ventures, Founders Fund, Foundation Capital, 6th Man Ventures, Reciprocal Ventures, Chapter One and angel investors including Solana co-founders Anatoly Yakovenko and Raj Gokal, and Balaji Srinivasan. Our team members have previously built mission-critical, scalable infrastructure at AWS, Coinbase, Stripe, Google, Digital Ocean, and more.

Here is the Helius Manifesto so you know what to expect if you join Helius.

Role Description

We are looking for a Senior Full-stack Engineer to join our growing team. If you have a passion for building high-quality user experiences backed by robust systems, and you thrive in a high-ownership environment, we'd love to hear from you!

Responsibilities:

• Design and implement full-stack features, from user interfaces to backend services
• Build responsive, performant frontend applications using React
• Architect and maintain scalable backend services that power our user-facing applications
• Work closely with product and design teams to translate requirements into technical solutions
• Optimize application performance across the entire stack
• Drive technical decisions around frontend architecture, state management, and API design
• Lead code reviews and mentor other engineers in both frontend and backend best practices
• Contribute to our technical roadmap and help shape our engineering culture
  
  

Requirements:

• 5+ years of full-stack development experience in production environments
• Strong proficiency with React and modern frontend development (2+ years)
• Strong backend experience with languages like Golang, C#, Java, or Rust (3+ years)
• Experience building and maintaining REST/GraphQL APIs
• Experience with database design and optimization
• Strong system design and architecture skills
• Understanding of CI/CD practices and DevOps principles
• Demonstrated ability to work autonomously, execute at speed, with excellent communication and collaboration skills.
  
  

Nice to Have:

• Prior experience building & maintaining billing systems
• Prior startup and/or web3 experience
• Solana development experience
• Understanding of web security best practices
• Track record of mentoring other engineers
  
  

What we offer:

• Competitive salary and equity package
• Flexible work hours and remote-friendly environment
• Generous vacation and time-off policy
• Wellness, travel, and educational budgets
• Opportunities for personal and professional growth in a fast-paced, dynamic industry
  
  

Helius is an equal opportunity employer.