Senior Node.js developer for blockchain project @ Interexy
1 week ago
Professional requirements
- 4+ years of experience with server-side JS/TS;
- Solid understanding of TypeScript, JavaScript fundamentals and internals;
- Experience with Express, NestJS or any other similar framework;
- Flexible approach in regards to different programming languages/technologies;
- Proven experience using any other stack (.NET/Go/Java/C++, etc.);
- Strong understanding of asynchronous programming, event-driven architecture, and non-blocking I/O;
- Hands-on experience with Web3.js or Ethers.js for interacting with Ethereum or other EVM-compatible networks;
- Understanding of smart contracts;
- Familiarity with popular blockchains like Ethereum, Binance Smart Chain, or Layer 2 solutions;
- Expertise in data structures, algorithms, and software design patterns;
- Solid understanding of different software architectural patterns;
- Experience with different RDBMSes (MySQL/PostgreSQL);
- Experience in writing complex SQL queries and their optimization;
- Experience with different kinds of ORMs;
- Familiarity with Docker, containerization and orchestration tools;
- Strong analytical skills with the ability to think critically and solve complex issues;
- Proficiency in writing unit tests, integration tests, and end-to-end tests.
The project involves the development of a system for working with cryptocurrencies that will partially replace the current structure used in the services. The system will be similar to the tools used by cryptocurrency exchanges for accepting and managing balances, but with specific features for distributing outgoing flows. The integration includes connecting to existing services, such as merchant platforms and systems for handling fiat payments.
,[- Write efficient, maintainable code;, - Ability to efficiently design and implement separate self-sufficient components;, - Participate in architectural discussions and technical decision-making;, - Identify potential technical risks and develop mitigation strategies;, - Ensure knowledge is effectively shared and maintained within the team., - Foster a collaborative and innovative development environment;, - Perform cross code-review with team members;, - Properly maintain documentation;] Requirements: Node.js, Java Script, Express.js, NestJS, Web3, .NET, Java Tools: .-
Blockchain Development Specialist
1 week ago
Remote, Czech Republic Interexy Full timeAbout the RoleAt Interexy, we're seeking a highly skilled Blockchain Development Specialist to join our team. As a key member of our development squad, you will play a crucial role in designing and implementing a system for working with cryptocurrencies that will partially replace our current infrastructure.Key Responsibilities:Develop efficient and...
-
Blockchain Developer for Innovative Projects
2 weeks ago
Remote, Czech Republic Linum Labs Full timeLinum Labs is a leading blockchain product development company established in 2016. Our team consists of entrepreneurs, engineers, and designers dedicated to crafting client solutions that harness the power of blockchain and web3.We are seeking an experienced Full Stack Developer with at least 4 years of experience to join our dynamic remote-first culture....
-
Senior Blockchain Developer
4 weeks ago
Remote, Czech Republic apreel Sp. z o.o. Full timeWe are seeking a skilled Senior Blockchain Developer to join our team at apreel Sp. z o.o.The ideal candidate will have a strong background in blockchain technologies, including Solidity, Web3.js, and Truffle. They will be responsible for developing and deploying smart contracts, as well as integrating blockchain solutions into cloud environments.The salary...
-
Senior Blockchain Developer
1 week ago
Remote, Czech Republic Linum Labs Full timeAbout UsLINUM LABS is a leading company in blockchain product development, with a strong focus on crafting client solutions that harness the power of blockchain and web3.Our team is dedicated to creating innovative projects that push the boundaries of what's possible. We value work-life balance and understand the importance of recharging. As a remote-first...
-
Remote, Czech Republic Visible Magic Full timeJoin a cutting-edge technology project with Visible Magic, an American IT company building blockchain-based digital products for the U.S. market.We're looking for a Senior Golang Developer to help build a high-load network job routing service from scratch and successfully roll out product releases according to the product plan.**Key...
-
Remote, Czech Republic Visible Magic Full timeVisible Magic is a US-based Web3 company specializing in blockchain and Web3 solutions for high-tech projects.We are seeking a skilled Senior AR/iOS Developer to join our team. In this role, you will design and develop cutting-edge augmented reality applications for iOS platforms using ARKit and the latest technologies to deliver immersive user...
-
Solana Blockchain Specialist
2 weeks ago
Remote, Czech Republic Linum Labs Full timeJob Description:We are seeking an experienced Solana Developer to join our team at Linum Labs.About the Role:This is a mid-senior position requiring 3-5 years of experience in developing smart contracts on the Solana blockchain.You will design, maintain, and optimize smart contracts using Rust, ensuring their performance and scalability for low-latency and...
-
Software Engineer with Blockchain Expertise
4 weeks ago
Remote, Czech Republic Linum Labs Full timeJob DescriptionWe are seeking a highly motivated and skilled Software Engineer to join our team at Linum Labs. This is a full-time, remote position that offers the opportunity to work on cutting-edge blockchain projects.Key Responsibilities:Design and develop scalable, secure, and efficient software solutions using Web3 technologiesCollaborate with...
-
Blockchain Engineer @ apreel Sp. z o.o.
1 month ago
Remote, Czech Republic apreel Sp. z o.o. Full timeRequirements for Blockchain Engineer: Blockchain technologies (solidity, Web3.js, Truffle) Smart contract development and deployment Front end development using JavaScript frameworks Back-end development (node.js, Python, Go.) Knowledge of decentralized storage solutions/consensus algorithms Blockchain security protocols/cryptographic...
-
Senior Node.js Developer
2 weeks ago
Remote, Wrocław, Czech Republic Rite NRG Full timeRequirements 4+ years of experience developing applications in Node.js. Experience with TypeScript. Familiarity with AWS. Experience working with API integrations. Experience with LLM and GenAI is essential. Understanding of NLP principles for model development and evaluation. Experience with text and speech processing. Understanding of DAG and...
-
Remote, Gdańsk, Czech Republic DevBrother Full timeAbout the JobWe are seeking a highly skilled Senior Front-end UX Developer to join our team at DevBrother. As a key member of our cross-functional team, you will be responsible for bridging the gap between design and development, working closely with product managers, designers, and engineers to deliver innovative and user-centric solutions.Our client is...
-
Blockchain Business Development Specialist
2 weeks ago
Remote, Czech Republic Stakin Full timeAt Stakin, we are seeking an exceptional business development specialist to drive the adoption of Proof of Stake with crypto investors. With a strong understanding of blockchain technology and its applications, this individual will play a crucial role in identifying opportunities and developing partnerships that will accelerate our product adoption.About the...
-
Remote, Czech Republic Visible Magic Full timeWe are an American IT company building a variety of blockchain-based digital products for the U.S. market.Our clients are established, high-tech blockchain companies as well as innovative fintech startups.We are looking for a Senior Golang Developer who has experience in scheduling queue design, HA/HL systems, and microservices architecture.This individual...
-
Blockchain Business Developer @ Stakin
1 month ago
Remote, Czech Republic Stakin Full timeSkills and Experience Experience in the blockchain is a must Ability to develop the trust of potential partners executives and influencers Strong oral and written communication with the ability to explain complex technical features in a language that can be understood by the general public Strong organization skills and attention to...
-
Remote, Czech Republic Linum Labs Full time**About the Role**We are seeking a highly skilled Senior Backend Engineer to join our team at Linum Labs. As a key member of our development team, you will be responsible for designing and building scalable back-end services that integrate blockchain and Web3 features.**Your Responsibilities Will Include:**Developing and maintaining APIs and services to...
-
Expert DeFi Developer for Blockchain Innovations
4 weeks ago
Remote, Czech Republic Visible Magic Full timeWe are an American IT company, Visible Magic, specializing in blockchain projects for the U.S. market. Our clients are established high-tech blockchain projects as well as innovative fintech startups.Job SummaryThis is a highly sought-after position for a seasoned Solidity developer with extensive expertise in decentralized finance (DeFi) applications, smart...
-
Senior Node.js Developer @ SoftwareMill
2 months ago
Remote, Czech Republic SoftwareMill Full timeWHAT WE EXPECT Strong knowledge of modern back-end and JavaScript ecosystem, allowing to choose the right tool for the job Expertise in Node.js development with a focus on building scalable and efficient server-side applications Proficiency in using TypeScript for building type-safe and maintainable code Familiarity with React Ability to write clean,...
-
Blockchain Business Opportunity Developer
4 weeks ago
Remote, Czech Republic Stakin Full timeAbout the RoleWe are seeking a highly skilled Business Development Specialist to join our team at Stakin, a leading Web3 infrastructure and non-custodial staking service provider.The successful candidate will have a deep understanding of blockchain technology and be able to clearly communicate technical concepts to non-technical stakeholders and partners.Key...
-
Remote, Gdańsk, Czech Republic DevBrother Full timeCompany OverviewWe are DevBrother, a forward-thinking company dedicated to revolutionizing the AI industry with cutting-edge blockchain technology. Our mission is to create an open and independent artificial general intelligence that benefits humanity.Job DescriptionWe seek an experienced Senior Blockchain API Developer to lead the design, development, and...
-
Remote, Czech Republic TechHunt Full timeWe are TechHunt, a cutting-edge tech company seeking an experienced Automation Tester to join our team. In this role, you will be responsible for developing and maintaining automated tests for our blockchain-based solutions.About the JobSalary: $80,000 - $110,000 per yearThis is a fantastic opportunity to work on challenging projects, collaborate with...