Remote Jobs at Serotonin

The ideal candidate has a deep understanding of crypto and blockchain, with strong familiarity with Crypto Twitter, Facebook, Instagram, and other relevant social platforms. Experience creating high-volume content for platforms like X, LinkedIn, Instagram, YouTube, TikTok, and Warpcast is required. Familiarity with social listening tools, particularly Kaito and Yap, is a plus. The role also requires the ability to balance evergreen content, product marketing, and creative campaigns with agility,…

Candidates should possess familiarity with the principles of mainstream blockchain systems such as Ethereum, Bitcoin, and Solana, and be proficient in using one or more languages including Golang, Java, Rust, C, C++, or Solidity. Prior experience in implementing well-known blockchain projects and contributing to established open-source projects is preferred.

Candidates should possess a deep understanding of the source code and implementation of mainstream blockchain systems such as Bitcoin, Ethereum, and Solana. Prior experience as a core contributor to open-source projects in blockchain infrastructure is preferred, and a PhD in a related field is desired.

Candidates should possess strong programming skills in Rust or C++, a thorough understanding of Bitcoin script language, knowledge of state-of-the-art ZK proof systems such as Plonky2, Plonky3, and Halo2, proficiency in open-source contribution, skills in performance benchmarking, profiling, and optimization, and a deep understanding of blockchain technologies and scaling solutions. Furthermore, candidates should have sufficient background knowledge of mathematics and cryptography to quickly le…

Candidates should possess at least 3 years of experience in systems programming using Rust, Go, or C++, along with a strong background in distributed systems and blockchain technology. They must have a deep understanding of cryptographic primitives and their implementations, proficiency in blockchain fundamentals including consensus protocols, P2P networking, and blockchain security, and experience with Bitcoin, Ethereum, or other major blockchain platforms. Strong algorithmic problem-solving sk…

Candidates should possess 3+ years of experience in software development with a strong focus on Rust, a solid understanding of blockchain protocols, cryptographic algorithms, and distributed systems, and proven experience in optimizing code for performance and scalability in production environments. Strong problem-solving skills and the ability to work independently and as part of a team are also required, along with excellent written and verbal communication skills.

Candidates should possess 2–4 years of experience in blockchain development, with a strong focus on smart contracts, proficiency in Solidity and familiarity with the Ethereum Virtual Machine (EVM), understanding of security considerations and best practices for smart contract development, experience with tools such as Hardhat, Truffle, or Foundry, and familiarity with Web3.js, Ethers.js, or similar libraries for interacting with blockchain networks.

Candidates should possess significant professional Rust experience, including experience with performance tuning or optimization, implementing high-performance software or distributed systems, and understanding computer architecture and configuration. They must be able to think across layers of abstractions and understand technology tradeoffs with a pragmatic approach to problem-solving, as well as be capable of mentoring and guiding engineers across the team, providing leadership in Rust develo…

Candidates should possess strong Linux system administration and networking experience, proven experience with bare metal server infrastructure, and a comfort level with AWS. Security fundamentals are also preferred, along with familiarity with Rust and blockchain/crypto infrastructure experience, and knowledge of the Solana ecosystem.

This Sr. Web3 Recruiter role requires a strong understanding of the Web3 ecosystem, including blockchain technology, cryptocurrency, and NFTs. Candidates should possess at least 5 years of recruiting experience, with a proven track record of sourcing and hiring technical talent, particularly in blockchain and decentralized finance (DeFi). Demonstrated experience recruiting for roles such as blockchain developers, smart contract engineers, and crypto researchers is essential.

Candidates should possess a proven record in creating streamlined operations for marketing teams, demonstrating experience in project management, task coordination, and deadline management. They should also have a deep understanding of web3 media, a strong network of contacts within the local web3 community in Hong Kong, and the ability to cultivate and maintain relationships with local web3 media, industry leaders, and influencers.

- Talented and passionate individual - Belief in being a great fit for the team - Resume submission - Brief note about the kind of work you're interested in

- 1–3 years of experience working in public relations, either at an agency or in-house - Background in fintech, financial services, crypto, venture capital, or consumer finance - Understanding of financial trends and the media landscape; familiarity with DeFi, tokenized assets, and/or blockchain infrastructure is a major plus - Proven ability to contribute to and execute successful public relations campaigns - Highly responsive, detail-oriented, and collaborative - Strong writing, editing, and c…

- 3+ years developing infrastructure in adversarial, peer-to-peer environments (e.g., blockchain nodes) - 5+ years of development experience in Go (required), JavaScript/Node, TypeScript, Python, or Rust - 5+ years with both SQL and NoSQL systems - Strong background in Web3, crypto, DeFi, and AI technologies - Demonstrated experience building public-facing APIs handling high throughput (≥10⁴ requests per day) - Excelling in fast-paced startup environments, with strong problem-solving and cross-t…

- Hands-on production experience with Go, Next.js, SQL optimization, and Kubernetes - Deep familiarity with PostgreSQL, Docker, GCP, NATS, and caching strategies - Strong skills in building scalable UIs, APIs, and distributed microservices - Crypto-native mindset with smart contract development experience (Solidity on Ethereum, Move on Sui) - Bonus: Strengths in performance tuning, observability, and tooling - Thrive in an early-stage startup environment and embrace founder-like ownership - Moti…