Jobs
My ads
My job alerts
Sign in
Find a job Career Tips Companies
Find

Senior smart contract engineer

London
Symbiotic
Contract engineer
Posted: 29 June
Offer description

Join to apply for the Senior Smart Contract Engineer role at Symbiotic

Continue with Google Continue with Google

6 days ago Be among the first 25 applicants

Join to apply for the Senior Smart Contract Engineer role at Symbiotic

About Symbiotic

At Symbiotic, we are building a permissionless shared security primitive that empowers network builders to shape and personalise their unique restaking implementation. Our goal is to minimise risks while maximising freedom for all you wonderful builders of crypto infrastructure networks. We have a robust developer-centric proposition and we can't wait to share it with everyone.

About Symbiotic

At Symbiotic, we are building a permissionless shared security primitive that empowers network builders to shape and personalise their unique restaking implementation. Our goal is to minimise risks while maximising freedom for all you wonderful builders of crypto infrastructure networks. We have a robust developer-centric proposition and we can't wait to share it with everyone.

You can find more information about what we're building and how we're doing it in our docs.

Our People

We're a tight-knit team of experienced individuals at the forefront of crypto infrastructure. Our backgrounds range from security auditing and smart contract development to node operation, and we're supported by Paradigm and CyberFund.

We're on the hunt for talented professionals to join our mission and strengthen our awesome team.

The Role

We are seeking a Senior Smart Contract Engineer to work on our existing smart contract codebase, including core contracts, core extensions, and middleware SDK, as well as develop new upcoming modules.

What You'll Do


* Work at the intersection of blockchain protocols and smart contracts, contributing to the design and development of EVM-based systems
* Write, optimize, and audit smart contracts in Solidity, with a focus on performance, clarity, and security
* Build and experiment with staking, DeFi, and other protocol-level primitives
* Leverage tools like Foundry and Hardhat for development, testing, and deployment
* Conduct and support security audits, addressing vulnerabilities and integrating best practices
* Collaborate closely with protocol engineers to support integrations across L1 and L2 chains
* Work with web3 libraries like ethers.js, viem, and web3.py for off-chain contract interactions
* Occasionally contribute to related tooling and scripting in Python and TypeScript

Who You Are

* Strong understanding of Ethereum L1/L2 architecture and PoS mechanisms
* Familiar with blockchain primitives such as consensus algorithms and cryptography
* Deep knowledge of EVM internals: execution flow, memory/storage models, gas mechanics, and precompiles
* Expert in Solidity, with exposure to Yul, Vyper, or Huff (a plus)
* Solid grasp of DeFi concepts: DEXes, lending protocols, stablecoins, and staking mechanisms
* Proficient with Foundry, Hardhat, and comfortable working with ethers.js, web3.js, viem, or web3.py
* Strong security mindset, familiar with common attack vectors and the auditing process
* Practical coding experience in Python and JavaScript/TypeScript

Nice to Have

* Experience in compilers development
* Experience in Rust, Go, C/C++
* Experience in protocol development such as L1, L2
* OP stack, Arbitrum knowledge
* Experience with ZK on EVM



Seniority level

* Seniority level

Mid-Senior level


Employment type

* Employment type

Full-time


Job function

* Job function

Engineering and Information Technology
* Industries

Blockchain Services

Referrals increase your chances of interviewing at Symbiotic by 2x


Sign in to set job alerts for “Senior Contract Engineer” roles.

Continue with Google Continue with Google

Continue with Google Continue with Google

We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

#J-18808-Ljbffr

Apply
Create E-mail Alert
Job alert activated
Saved
Save
Similar job
Senior solidity engineer / smart contract engineer
London
P2P
Contract engineer
Similar job
Contracts engineer – piling
London
Pinnacle Recruitment Ltd
Contract engineer
Similar job
Senior smart contract engineer
London
Request
Contract engineer
See more jobs
Similar jobs
Engineering jobs in London
jobs London
jobs Greater London
jobs England
Home > Jobs > Engineering jobs > Contract engineer jobs > Contract engineer jobs in London > Senior Smart Contract Engineer

About Jobijoba

  • Career Advice
  • Company Reviews

Search for jobs

  • Jobs by Job Title
  • Jobs by Industry
  • Jobs by Company
  • Jobs by Location
  • Jobs by Keywords

Contact / Partnership

  • Contact
  • Publish your job offers on Jobijoba

Legal notice - Terms of Service - Privacy Policy - Manage my cookies - Accessibility: Not compliant

© 2025 Jobijoba - All Rights Reserved

Apply
Create E-mail Alert
Job alert activated
Saved
Save