Senior Back-end Engineer

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++hellohello

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2017

🤝 B2B

☁️ SaaS

Design • B2B • SaaS

++hellohello is a design and development agency based in Montevideo, Uruguay, specializing in creating beautifully crafted digital products for high-growth startups. They focus on user experience and innovation, offering services that include app design, website design, motion design, product strategy, branding, and development. With a portfolio that showcases their work with various startups and established companies, ++hellohello aims to transform good ideas into outstanding user experiences.

📋 Description

• Architect and build scalable product systems across frontend and backend • Collaborate with smart contract engineers to define interfaces and workflows between backend services and blockchain networks (EVM and non-EVM) • Support internal ops, investor services, and compliance teams with automation, auditability, and observability tools • Establish and enforce backend engineering standards, best practices, and security protocols across the stack • Participate in code reviews and architecture discussions, contributing to a culture of engineering excellence

🎯 Requirements

• 4+ years of backend software engineering experience • Strong familiarity in modern languages such as Go (Golang), Python, C++, and TypeScript • Strong understanding of distributed systems, system design, and API development • Experience integrating with cloud infrastructure (AWS preferred), third-party services, and security/compliance-sensitive systems • Experience working with blockchain/Web3 data providers like The Graph, Alchemy, or Moralis (nice to have) • Prior work on tokenized asset platforms, DeFi protocols, or custodial/wallet infrastructure (nice to have) • Understanding of Solidity or other smart contract languages (nice to have)

🏖️ Benefits

• Health insurance • Retirement plans • Paid time off • Flexible work arrangements • Professional development