DLT Engineer (Mid & Lead) @ Crestt

Hi! We are looking for two Engineers – one for a Mid-level position and one for a Lead position .

Remote (Poland) | 🕐 Start : ASAP | 💰 B2B : 135 – 175 pln net+vat / hr - rate based on seniority and qualifications

Industry : Tokenized Financial Products / dApps / Regulated Blockchain

We’re assembling a team of engineers to drive the design and development of a blockchain-based platform for tokenized deposits (cash, MMFs, deposit products). If you're confident in your smart contract engineering skills, whether you're already a Lead or growing into a Mid , we want to hear from you.

Tech Stack :

Solidity

Hardhat

Truffle

Ganache

Fireblocks

Ledger Vault

Ethereum

• Kaleido
• Chainstack
• Infura
• Java / Spring
• Kubernetes
• CBDC R&D

Why Join Us?

• Work on real-world applications of tokenization
• Influence the future of programmable finance
• Remote flexibility (from Poland)
• Flat structure, fast decision-making
• Exposure to enterprise blockchain and CBDC initiatives

If you're excited by the intersection of Web3, finance, and infrastructure—let’s talk.

Apply now and let’s build future-proof financial rails together.

Must-Have Skills

Common (Both levels) :

• Pro experience with Solidity and EVM ecosystems
• Familiar with Hardhat / Truffle / Ganache
• Smart contract upgradeability : Proxy / UUPS / Beacon patterns
• Hands-on with blockchain infra : Infura, Alchemy, Chainstack
• Familiar with custody / wallet systems (Fireblocks, Ledger Vault, MetaMask Institutional)
• Practical exposure to tokenized financial workflows in a regulated setting
• Security-conscious approach to smart contract dev

Additional for Lead :

• 6+ years in DLT or smart contract engineering (vs. 3+ for Mid)
• In-depth involvement in production-grade systems & technical leadership
• Strong voice in architecture, scaling, and infrastructure design decisions

Nice-to-Have (both levels, especially Lead) :

• OAuth2 / SAML integration experience
• dApp deployment on Kubernetes / Helm
• Experience with cloud-native systems (AWS, Azure)
• Java / Spring Boot for backend-chain communication
• Knowledge of compliance, AML / KYC tooling

Hi! We are looking for two Engineers – one for a Mid-level position and one for a Lead position .

Remote (Poland) | 🕐 Start : ASAP | 💰 B2B : 135 – 175 pln net+vat / hr - rate based on seniority and qualifications

Industry : Tokenized Financial Products / dApps / Regulated Blockchain

We’re assembling a team of engineers to drive the design and development of a blockchain-based platform for tokenized deposits (cash, MMFs, deposit products). If you're confident in your smart contract engineering skills, whether you're already a Lead or growing into a Mid , we want to hear from you.

Tech Stack :
• Solidity
• Hardhat
• Truffle
• Ganache
• Fireblocks
• Ledger Vault

Ethereum

• Kaleido
• Chainstack
• Infura
• Java / Spring
• Kubernetes
• CBDC R&D

Why Join Us?

• Work on real-world applications of tokenization
• Influence the future of programmable finance
• Remote flexibility (from Poland)
• Flat structure, fast decision-making
• Exposure to enterprise blockchain and CBDC initiatives

If you're excited by the intersection of Web3, finance, and infrastructure—let’s talk.

Apply now and let’s build future-proof financial rails together.

For both levels : ,

• Build secure, modular smart contracts (Proxy / UUPS / Beacon),
• Implement token standards (e.g., ERC-20 / 721) within compliant frameworks,
• Connect dApps with custody / wallet infra (e.g., Fireblocks, Ledger Vault, MMI),
• Support data indexing for off-chain services,
• Participate in design, audit, and deployment flows (via tools like Kaleido, Alchemy), For Lead only : ,
• Own architecture decisions and guide junior engineers,
• Contribute to CBDC-related initiatives (e.g., mBridge, Ensemble),
• Oversee CI / CD flows and DevOps around decentralized deployments] Requirements : Solidity, Proxy, HardHat, Truffle, Ganache, UUPS, Beacon, Fireblocks, Ledger Vault, MetaMask Institutional, Kaleido, Ethereum , Chainstack , Infura, Alchemy, CBDC, AWS, Azure, Java, Spring Boot, OAuth2, SAML, IDP, Helm, Kubernetes, KYC, AML, CI / CD Additionally : Flat structure.