Blockchain ZK Engineer (Cross Chain Interoperability Protocol)

Full time
Remote
Compensation is not specified
Role
Backend Engineer
Description

[Introduction]

ChainSafe is a renowned blockchain research and development company that focuses on infrastructure solutions for the decentralized web. With significant contributions to various ecosystems like Ethereum, Polkadot, and Filecoin, ChainSafe emphasizes creating solutions for developers and teams in the evolving web3 landscape. They excel in areas such as gaming, bridging, NFTs, and decentralized storage, advocating for open-source practices and community-centered values.

[Overview of the Role]

As a part of the dynamic team at Sygma, we are in search of an individual deeply committed to enhancing the blockchain interoperability sector. The ideal candidate will have a background in blockchain protocols and a strong enthusiasm for advancing these sectors by amalgamating their functionalities.

Substantial responsibilities include architecting and implementing extensions to the foundation of the Sygma interoperability protocol and associated tools. Collaboration with the Research Team to explore cutting-edge blockchain technologies and drive innovation in cross-chain protocols is a key aspect of this role.

With our focus on cross-chain interoperability technologies utilizing ZK and Optimistic bridges, your involvement as a Blockchain ZK Engineer will be instrumental in refining blockchain interoperability and expanding possibilities within this emerging field. All work at Sygma is open-source, fostering ample opportunities for cross-collaboration within diverse blockchain networks and ecosystems.

[Key Responsibilities]

  1. Mapping out strategies to enhance existing solutions by improving quality, performance, and modularity of current components.
  2. Conducting in-depth research, collaborating with the Research Team to explore new blockchain technologies relevant to interoperability.
  3. Driving proof-of-concept implementations to validate the feasibility and usability of diverse solutions.
  4. Participating in pivotal architectural and design decisions to formulate a robust bridging solution for disparate network types.
  5. Supporting developers during development cycles, based on thorough research interventions.

[Required Proficiencies]

  • Minimum of 2 years engaging with blockchain technologies as a developer, coupled with a total of 3 years in Software Engineering.
  • Proficiency in crafting zkSNARK circuits using frameworks like Halo2, Plonky2, and more.
  • Extensive practical experience with the Ethereum Virtual Machine (EVM) and distributed systems construction.
  • 1-2 years of experience with Rust or parallel programming languages.
  • Exceptional debugging skills with keen attention to detail and a resourceful problem-solving approach.
  • Eagerness to delve into unexplored territories, conduct active research, and share considerable knowledge with the team.
  • Willingness to expand your knowledge across multiple technology stacks.

[Bonus Proficiencies]

  • Prior experience with interoperability projects or protocols is advantageous.
  • Ability to draft research memos, design proposals, and technical specifications.
  • Profound understanding of low-level blockchain protocols and concepts such as Data Availability, Rollups, and Interoperability.
  • Familiarity with distributed and peer-to-peer system intricacies.

[Hiring Process]

Candidates applying for this role should expect a series of steps in the hiring process at ChainSafe, including screening calls, interviews with the hiring team, technical interviews, and a technical task completion.

[Diversity and Inclusion]

ChainSafe is a remote-first organization that values diversity and inclusion. We advocate for equality, accessibility, and respect for all individuals, regardless of background. We actively encourage underrepresented groups in tech to apply and contribute to our innovative projects.

[Employee Benefits and Salary]

ChainSafe offers ample opportunities for personal and professional growth, autonomy in work, results-driven environment, flexible work hours, competitive remuneration, and time-off policies. Salary details will be determined during the interview process considering various factors like expertise, location, alignment with market standards, and equity considerations.

Skills Required
Avatar
Chainsafesystems
Website
Not specified
Company size
Not specified
Location
United States
Description
Not specified

More Full-time Jobs

Show more

Product Manager – Portfolio Companies

Full time
Remote
Product Manager – Portfolio Companies
Sirex Portfolio Companies 
Salary: $135,000 – $190,000 USD base + equity 
Location: Remote-first
About the role Own product strategy and roadmap for 1–2 portfolio projects (DeFi protocols, trading platforms or RWA infrastructure).
What you’ll do
Define vision, prioritize features and write specs
Work directly with smart-contract and frontend teams
Design user flows and drive product-market fit
Run user research and iterate fast
Requirements
4+ years Product Management experience
Previous Web3/DeFi product experience mandatory
Strong technical intuition
Apply → Send CV + 1 strongest product case
Payment in Crypto
11,250-15,833
Monthly
See details

Frontend Engineer – Web3 Products

Full time
Remote
Frontend Engineer – Web3 Products
Sirex Portfolio Companies 
Salary: $120,000 – $175,000 USD base + equity 
Location: Remote-first
About the role Build beautiful, high-performance frontends for DeFi, RWA and agent platforms (Next.js + Wagmi/Viem stack).
What you’ll do
Ship trading interfaces, dashboards and wallet flows
Optimize for mobile and lightning-fast UX
Integrate with smart contracts and oracles
Work directly with design and product teams
Requirements
3+ years Next.js / React + TypeScript
Strong experience with Wagmi, Viem, RainbowKit or similar
Web3 product intuition (wallets, transactions, gas UX)
Apply → Send CV + GitHub
Payment in Crypto
10,000-14,583
Monthly
See details

On-Chain Data Analyst

Full time
Remote
On-Chain Data Analyst
Sirex Fund + Portfolio 
Salary: $110,000 – $160,000 USD base + equity 
Location: Remote-first
About the role 
Turn raw blockchain data into actionable investment insights and portfolio monitoring tools.
What you’ll do
Build and maintain Dune dashboards + custom indexers
Track TVL, user activity, token flows and protocol health
Create weekly investment memos and anomaly alerts
Support due diligence with on-chain forensics
Requirements
Strong SQL + Python experience
Deep knowledge of The Graph, Dune, Flipside or custom subgraphs
Previous crypto research or trading background
Apply → Send CV + 1 example Dune dashboard
Payment in Crypto
9,167-13,333
Monthly
See details

Operations Associate / Chief of Staff

Full time
Remote
Operations Associate / Chief of Staff
Sirex Fund Salary: $95,000 – $135,000 USD base + carry Location: Remote-first
About the role Be the right-hand person to partners: run fund operations, portfolio support and internal processes.
What you’ll do
Manage deal flow, data rooms and investment memos
Coordinate portfolio reporting and founder updates
Handle legal, compliance and admin tasks
Support events, LP communication and hiring
Requirements
2–4 years in VC, startup ops or consulting
Extremely organized and fast-moving
Web3/native crypto understanding is mandatory
Apply → Send CV + short note “Why you’d be a great CoS”
Payment in Crypto
7,917-11,250
Monthly
See details

Community & Growth Lead

Full time
Remote
Community & Growth Lead
Sirex Portfolio Companies Salary: $110,000 – $155,000 USD base + equity + token package Location: Remote-first
About the role Own community strategy and growth for 2–3 portfolio projects (AI agents, RWA platforms, DeFi protocols).
What you’ll do
Build and scale Telegram, Discord, X and on-chain communities
Run engagement campaigns, AMAs, airdrops and incentive programs
Create content calendars and growth experiments
Track metrics and report directly to founders
Requirements
3+ years community/growth experience in Web3
Proven track record of growing communities from 0 to 10k+ active members
Strong writing and meme/game theory skills
Apply → Send CV
Payment in Crypto
9,167-12,917
Monthly
See details