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| Job Position | Company | Posted | Location | Salary | Tags |
|---|---|---|---|---|---|
OKX | Hong Kong, Hong Kong | $140k - $144k | |||
Coinbase | San Francisco, CA, United States | $275k - $324k | |||
Scroll.io | Remote | $72k - $112k | |||
Scroll.io | Remote | $63k - $90k | |||
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ML TS | New York, NY, United States | $200k - $350k | |||
FEDML | New York, NY, United States | $72k - $112k | |||
Coinbase | New York, NY, United States | $175k - $206k | |||
Logos | Barcelona, Spain | $36k - $90k | |||
Logos | Prague, Czech Republic | $36k - $90k | |||
Calyptus | San Francisco, CA, United States | $98k - $110k | |||
Connext | Lisbon, Portugal | $76k - $97k | |||
Base | Remote | $185k | |||
Base | Remote | $185k | |||
Base | Remote | $122k - $123k | |||
Base | Remote | $122k - $123k |
OKX
$140k - $144k estimated
This job is closed
Who We Are
At OKX, we believe our future is reshaped with technology. Founded in 2017, OKX is one of the world’s leading cryptocurrency spot and derivatives exchanges. OKX innovatively adopted blockchain technology to reshape the financial ecosystem by offering some of the most diverse and sophisticated products, solutions, and trading tools on the market. Trusted by more than 20 million users in over 180 regions globally, OKX strives to provide an engaging platform that empowers every individual to explore the world of crypto. In addition to its world-class DeFi exchange, OKX serves its users with OKX Insights, a research arm that is at the cutting edge of the latest trends in the cryptocurrency industry. With its extensive range of crypto products and services, and unwavering commitment to innovation, OKX vision is a world of financial access backed by blockchain and the power of decentralized finance.
We invest in our people as much as we invest in technology. We are united by our engaging culture, here we win as a team, embrace changes, and do the right thing. We are committed to creating a friendly, rewarding and diverse environment for OKers. It doesn’t matter where you come from, here everyone feels valued, respected and has the same opportunities to develop and thrive — we want to bring out the best in you.
About the Opportunity
ZK-DEX is a decentralized perpetual contract and spot based on order book. It adopts off-chain matching and on-chain accounting methods, achieves complete self-custody of assets through zero-knowledge proof and Layer 2 solution, and ensures the security of assets in the ZK-Rollup mode. The team is mainly responsible for the backend function implementation of on-chain perpetual contracts and on-chain spot. By delivering the transaction sequence after the centralized matching transaction is completed to Layer 2 as expected and ensuring accurate execution on Layer 2, the status is finally updated to L1. It effectively ensures the self-custody of user assets and can complete secure transactions between spot and futures.
What You’ll Be Doing:
- Responsible for the design and development of the company's core system, large and complex Dapp applications built on blockchain, and participating in the docking, communication and scheme design with external partners such as oracle manufacturers and Layer2 manufacturers;
- Maintain good communication with the Product Manager and other R & D teams, make reasonable suggestions for product requirements, and ensure the smooth progress of development work according to plan;
- Responsible for database design, scheme design, API interface design, external system access, etc.
What We Look For In You:
- Bachelor degree or above, major in computer science or related field, Java practical project development experience; project experience in high performance and high concurrency scenarios (head C-end business, message queue, gateway, storage, RPC) is preferred;
- Have a solid Java foundation, Java multi-threading, concurrency and network communication have deep experience, and have good programming habits;
- Familiar with the design and application of distributed systems, familiar with distributed, caching, messaging, Load Balance and other mechanisms and implementations;
- Diligent and eager to learn, passionate about the crypto industry; maintain a curiosity about new things; be sensitive to business data and respectful of online data; have certain stress resistance and self-driving ability;
Nice to Haves:
- Love technology, have a relentless pursuit of technology, and enjoy studying open source code.
- Priority will be given to those who have experience in optimizing projects in traditional financial fields, futures businesses, etc.
- Familiarity with blockchain project products is preferred, and familiarity with on-chain applications such as Defi/Layer2 is preferred. Good English and fluent spoken English are plus points.
Perks & Benefits:
- Competitive total compensation
- Comprehensive insurance coverage for employees and their dependants
- More that we love to tell you along the process!
#LI-LL1 #LI_ONSITE
What is the meaning of Layer 2?
Layer 2 in the context of cryptocurrency and blockchain technology refers to a secondary framework or protocol that is built on top of an existing blockchain system (the main chain or Layer 1)
The primary purpose of Layer 2 solutions is to solve the scalability and speed issues that many blockchains face, especially those that have become popular and heavily used, like Ethereum
Here are the key aspects of Layer 2 solutions:
- Scalability Enhancement: They help in scaling the main blockchain by handling transactions off the main chain. This reduces the burden on the main chain, allowing for faster and cheaper transactions.
- Types of Layer 2 Solutions: There are various forms of Layer 2 solutions, including state channels, sidechains, plasma chains, and rollups. Each has its own mechanism for interacting with the main chain and handling transactions.
- State Channels: These involve two parties engaging in numerous transactions outside of the main chain, which are then consolidated into a single transaction. This is especially useful for situations where multiple transactions occur between the same parties.
- Sidechains: These are separate blockchains that are connected to the main chain via a two-way peg. They operate independently and can have their own consensus mechanisms but are secured by the main chain.
- Plasma Chains: Plasma chains are similar to sidechains but with a more hierarchical structure. They report back to the main chain regularly and are optimized for mass transaction handling.
- Rollups: Rollups process and store transaction data on a sidechain but post transaction data to the main chain. They come in two varieties: optimistic rollups and zk-rollups, each with its own method of transaction verification.
- Security Considerations: While Layer 2 solutions are generally secure, they can have different security models compared to the main chain. This is an important consideration for users and developers.
- Impact on User Experience: For end-users, Layer 2 solutions can greatly improve the experience by reducing transaction fees and increasing transaction speeds.
- Adoption and Development: Many blockchain projects are actively developing Layer 2 solutions to enhance their networks. This is an ongoing area of innovation in the blockchain space.