Senior Full-Stack Blockchain Engineer (Remote)

Description Ciklum; Town of Poland (NY); On-site; USD 68,585 - 105,516; Full time

Benefits offered by this job

Premium medical package

Udemy access

Language courses

Company-paid certifications

Remote work flexibility

MyBenefit cafeteria

Job summary

Ciklum is seeking an Expert Fullstack (Blockchain) Engineer to join our team in Poland on a full-time basis. You will work within a cross-functional development team building backend services for high-volume on-chain transactions across multiple blockchain networks, both EVM and non-EVM.

You will own end-to-end development of backend components and APIs, and collaborate with protocol researchers and product teams to deliver scalable, secure solutions.

Qualifications

• 7+ years of experience as a Backend or Full Stack Engineer.
• Blockchain and Web3 experience with on-chain data and transaction lifecycles.
• Experience with multiple blockchain ecosystems (EVM and non-EVM).
• Proficiency in Node.js and TypeScript.

Responsibilities

• Design and build robust, scalable backend services for high‑volume on‑chain transactions across multiple networks.
• Own end‑to‑end development of backend components and APIs from architecture to production.
• Lead integrations with DeFi protocols, on‑chain data sources, and blockchain nodes.
• Research and evaluate emerging blockchain technologies to keep the platform cutting edge.
• Collaborate with product, protocol research, and platform engineering teams to deliver high‑quality solutions.

Skills

Node.js

TypeScript

Blockchain/Web3

Microservices

Security principles

Protocol research

Education

Bachelor of Science (B.Sc.) or equivalent

Tools

ethers.js

web3.js

Viem

React

Job description

Ciklum is seeking an Expert Fullstack (Blockchain) Engineer to join our team in Poland on a full-time basis. You will work within a cross-functional development team building backend services for high-volume on-chain transactions across multiple blockchain networks, both EVM and non-EVM.

You will own end-to-end development of backend components and APIs, and collaborate with protocol researchers and product teams to deliver scalable, secure solutions.