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Phi Labs | Lisboa, Portugal | $105k - $120k | |||
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Who are we?
Phi Labs is a software development company, initially spun out of Tendermint with the launch of the Archway protocol, a Cosmos-based layer 1 blockchain designed to reward dapp developers.
At our core, we are a software engineering company focused on the Cosmos SDK and CosmWasm, state-of-the-art frameworks for blockchain development. Now expanding to SUI, Solana, and other ecosystems. Over the last year we have been grooming a DeFi product and now looking to expand our team.
How we work
We have team members working worldwide, from the Americas, Europe to the Middle East and Asia. We are very adaptive and agile with the team workflow to stay focused and address challenges of remote and strongly distributed team. Communication is vital to us, and we rely heavily on Slack, Google Workspace, Linear, Notion, and GitHub to help us stay in sync. Most of the technology we build is free and open source.
This role is a full-time remote position, and you’re free to work from anywhere. Be advised that most team meetings occur between 6:30 am and 10:00 am Pacific Time (UTC-8/-7). If you're applying from a location where these hours are outside your usual working hours, we expect you to adapt to our meeting times.
About the Role
You will play an integral part of the engineering team, building and maintaining a new DeFi product - Bolt Liquidity.
Phi Labs is seeking three talented and motivated Sr. Smart Contract Engineers (Rust) with experience in the SUI, Solana, and EVM ecosystems to join our engineering team. As the newest member of the team, you won't just be working on the “ordinary” – you'll be at the helm of pioneering web3 DeFi solutions on top of one of many blockchains! We’re pushing the boundaries of what's possible and your contribution will be integral and influential.
The Tech
SUI, Solana, and EVM Ecosystems
Rust, TypeScript, Move, Solidity
Docker, Protobuf (prost), gRPC (tonic)
GitHub actions, Buf
What’s in it for you
📍 Remote-first company with company off-sites and retreats (2-3x year)
🌎 Flexible, dynamic environment within a diverse international team
🧑💻 The scope to create and build high-impact work that makes a difference in the Cosmos ecosystem and blockchain industry as a whole
💸 6-month contract to hire. Attractive compensation package with a token allocation after 6 months
✈️ Generous time off to rest, recharge, and be your best
What you will need
Smart Contract Expertise: Proven track record designing, writing, and deploying multiple smart contracts in Rust, Move, and/or Solidity — ideally in DeFi projects
Rust Mastery: Strong proficiency in Rust for both on-chain (Sui/Solana) and off-chain backend work — deep understanding of async, performance tuning, error handling, and API design
Full-Stack Rust Delivery: Demonstrated experience building and maintaining end-to-end Rust applications, from protocol logic to service layer
Version Control: Comfortable working in a Git-based workflow (branching, PRs, CI/CD hygiene)
Autonomous Execution: Self-starter able to operate independently while collaborating across functions
Communication: Excellent written and verbal English skills — capable of documenting designs and discussing architecture clearly
Additional Skills
Familiarity with the Sui, Solana, and/or EVM ecosystems — including tooling, dev environments, and SDKs.
Strong understanding of DeFi primitives (AMMs, lending, liquid staking, yield strategies, oracles).
Experience designing and integrating decentralized applications (dApps) and on-chain financial systems.
Exposure to continuous integration pipelines (GitHub Actions, CircleCI, or Travis).
Knowledge of ProtoBuf/gRPC or other typed interface definitions.
Experience contributing to or maintaining open-source projects.
A “Degen Score” that shows genuine curiosity and participation in crypto ecosystems.
What is EVM?
EVM stands for Ethereum Virtual Machine, and it is the runtime environment for smart contracts in the Ethereum network
It is a virtual machine that executes code written in the Solidity programming language, which is the language used for writing smart contracts on the Ethereum platform
The EVM is a sandboxed environment, which means that code executed within the EVM is isolated from the rest of the network and cannot interact with it directly
This is important for security reasons, as it prevents malicious code from affecting the rest of the network
When a smart contract is deployed to the Ethereum network, it is compiled into bytecode that can be executed by the EVM
Each node on the network maintains a copy of the EVM, which allows them to execute smart contract code and validate transactions
When a transaction is submitted to the network, the EVM processes it by executing the corresponding smart contract code
The EVM processes the transaction by reading the bytecode, interpreting it, and executing it step by step
The EVM then returns the result of the transaction to the sender, which can include changes to the state of the contract or the network as a whole
The EVM is designed to be Turing-complete, which means that it is capable of performing any computation that can be performed by a computer
This allows for complex smart contracts to be executed on the Ethereum network, including those with conditional logic, loops, and other advanced programming constructs
The EVM is a key component of the Ethereum network, as it allows for the execution of smart contracts in a secure and isolated environment
It is a crucial part of the blockchain infrastructure that enables decentralized applications to be built and run on the Ethereum platform.