R&D Engineer

About the Company

Coinspaid Dev is the engineering brand behind the technology, infrastructure, and R&D expertise built within Coinspaid. With more than 120 engineers and over 11 years of industry experience, Coinspaid Dev brings together software engineering, infrastructure, security and R&D teams with experience building distributed systems and blockchain infrastructure operating across more than 20 blockchain networks. Coinspaid Dev emerges as an independent engineering brand with a straightforward mission: to advance blockchain infrastructure engineering and contribute practical expertise back to the industry. The structure is new. The experience behind it is not.

About the Role

We are looking for a software engineer with deep knowledge of blockchain technologies to develop and support innovative solutions in the field of crypto processing, blockchain, DeFi, dApps and multi-party computations. Your role will involve research, designing, developing, and testing solutions in secure, high-performance distributed systems for processing cryptocurrency transactions, as well as integrating new functionalities into the company's products like MPC, distributed signing, etc.

Responsibilities

• Develop and implement innovative solutions for the company's products in the blockchain and crypto-processing sector
• Write clean, high-quality, maintainable code
• Integrate new functionalities into existing solutions and system architectures
• Integrate blockchain platforms with the company's existing systems
• Conduct code reviews and ensure code security
• Participate in architectural discussions and develop scalable system architectures
• Work with APIs to interact with crypto-payment gateways and external services
• Analyze system performance, identify bottlenecks, and optimize the system
• Participate in the development of new products and services based on blockchain technologies

Requirements

• A passion for problem-solving and finding innovative solutions
• At least 5 years of experience as a developer
• Deep knowledge of programming languages: Go, Solidity
• Expertise in Web3
• Experience with version control systems (Git)
• Experience working with blockchain platforms (Ethereum, Solana, Tron, etc.)
• Experience with cryptographic protocols and smart contracts
• Experience with DeFi
• Knowledge of decentralized application (dApps) architectures
• Understanding the specifics of cryptocurrency transactions and smart contracts
• English level: B1-B2

Nice to Have

• Experience with financial operations and high-load systems
• Knowledge of containerization and DevOps infrastructure (Docker, Kubernetes)
• Experience with programming languages: Rust, JavaScript, Python

Why Join CryptoProcessing by Coinspaid

You’ll be joining a company that is actively shaping its space – with enough scale to matter and enough room to make an impact. At Coinspaid, people are expected to think, contribute, and take ownership – and are supported in doing so. We focus on flexibility, wellbeing, and long-term growth – without overcomplicating how benefits work.

Benefits

Flexible Benefits - Benefit Bar – up to €230/month

• A flexible monthly budget you can use for what matters most to you – from sports and mental health to coworking, home office, or medical-related expenses.

Work & Flexibility

• Fully remote work from almost anywhere


• Optional offices and relocation support


• Flexible, async-friendly environment

Growth & Learning

• Budget for courses, certifications, and professional development


• Language learning support


• Cross-team learning and knowledge sharing

Wellbeing & Support

• Medical insurance or reimbursement depending on location


• Access to mental health support


• Financial support for important life events

Extras

• Merch shop with rewards system


• Team offsites and company events