Job Specification: Senior Blockchain Engineer (Tokenization Platform)

My client is seeking a highly skilledSenior Blockchain Engineerto join our growing tokenization company. You will play a critical role in designing and building scalable, secure infrastructure for tokenized assets, leveraging modern web technologies (Next.js) and cloud-native architectures (AWS).

This role requires deep expertise inRust-based smart contract development, strong familiarity withLayer 2 (L2) ecosystems, and the ability to buildlean, in-house solutionswithout over-reliance on third-party tooling.

Key Responsibilities:

• Design and developtokenization infrastructurefor real-world and digital assets
• Build and maintainsmart contracts in Rust(e.g., Soroban or similar frameworks)
• Architect and implementL2-integrated systems(rollups, bridges, settlement layers)
• Develop backend services and APIs usingNode.js / Next.js
• Deploy and manage scalable systems onAWS(Lambda, ECS, S3, RDS, etc.)
• Create secure, performant systems with strong attention tokey management and custody flows
• Collaborate with product and frontend teams to deliver seamless user experiences
• Optimize systems forperformance, cost-efficiency, and reliability
• Contribute to internal tooling and infrastructure with abuild-over-buy mindset

Required Skills & Experience:

Blockchain & Smart Contracts

• Strong proficiency inRust
• Experience building smart contracts usingSorobanor comparable Rust-based frameworks
• Solid understanding oftoken standards, custody, and tokenization models
• Hands-on experience withLayer 2 solutions(e.g., rollups, zk systems, optimistic L2s)
• Familiarity with blockchain architecture, consensus, and security best practices

Backend & Infrastructure

• Experience withNext.js / Node.js(API routes, server-side rendering, etc.)
• Strong experience withAWS(serverless and container-based architectures)
• Experience designingdistributed systems and microservices
• Database experience (PostgreSQL, DynamoDB, or similar)

Engineering Mindset

• Proven ability to buildlean, internal solutionsrather than relying on heavy external dependencies
• Strong system design skills with a focus onsimplicity and scalability
• Comfortable working infast-paced, early-stage environments

Nice to Have

• Experience withStellar ecosystem / Soroban specifically
• Knowledge ofzero-knowledge proofs or zk-rollups
• Experience withcustody solutions, MPC, or wallet infrastructure
• Familiarity withDevOps / CI-CD pipelines
• Frontend experience with React / Next.js (full-stack capability)

What Success Looks Like

• You deliverrobust tokenization infrastructurethat scales with minimal overhead
• You design systems that aresecure by default, especially around asset handling
• You reduce reliance on third-party services by buildingefficient in-house tools
• You help establishengineering best practicesacross blockchain and cloud systems

This is an excellent role paying up to £100K - please revert.