Senior Blockchain Engineer

27k - 32k PLN27 000 - 32 000 PLN/ mies./ mies.B2BB2B (netto)

SeniorZdalnie·WrocławFull-time·B2B

#475617·Dodano 4 dni temu·2

Źródło: justjoin.it

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Tech Stack / Keywords

Blockchain

Podsumowanie oferty

As a Senior Blockchain Engineer, you’ll work with a client team on production financial infrastructure and secure digital-asset operations. You’ll build and automate wallet operations on MPC custody platforms, using API integrations across stablecoins, DeFi and Web3.

Wymagania

Hands-on experience building secure money-movement solutions on MPC or custodial infrastructure (e.g. Fireblocks, Fordefi), primarily via API.
Experience with signing policies, transaction authorization and wallet controls.
Experience with transaction automation and exchange-style flows, including deposit and sweep flows.
Knowledge of DeFi sufficient to design integrations with confidence; deep smart contract expertise is not required.
Experience building production financial infrastructure that critical business processes depend on.
Strong software engineering fundamentals, including writing clean, testable code and considering maintainability and security.
Judgement to navigate trade-offs between security, delivery speed, automation and cost, and communicate decisions clearly to technical and non-technical stakeholders.
English proficiency at C1 level or above.
Polish language skills at B2 level or above.

Nice to have:

Familiarity with credit facility models, stablecoins and vault integrations.
Experience designing custody architecture and permission models, including roles, limits, whitelisting and multi-approval.
Experience with security infrastructure, including key management, auditing and transaction monitoring.
Solidity smart contract development experience.

Obowiązki

Help scope a pilot that may initially include manual steps and design a path toward automation.
Build solutions on an MPC custody platform for lender and borrower accounts, collections wallets, transfers and sweeps.
Define transaction policies and pre-execution checks, including controls on permitted destinations.
Integrate outputs from an external calculation agent or internal calculations without making smart contracts the primary money-movement layer.
Design and implement automated wallet operations, including deposit flows, sweeps and transfers, with a focus on security and auditability.
Collaborate with the client’s team, product and business stakeholders to build solutions that fit real needs.
Take shared ownership of the system from design through deployment and ongoing support.

Benefity

Dedicated training and wellbeing budget.
Access to specialists through the LuxMed healthcare package.
Option to activate a Multisport card.
Team activities, including board games, city outings, go-kart races, laser tag and team retreats.

Dofinansowanie szkoleń

Opieka zdrowotna

Karta sportowa

Spotkania integracyjne

4soft

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