Backend Developer

Job not on LinkedIn

🔥 0 minutes ago

🇷🇸 Serbia – Remote

⏰ Full Time

🟡 Mid-level

🟠 Senior

🔙 Backend Engineer

👻 Ghost score 10%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Solflare

WebsiteLinkedInAll Job Openings

51 - 200 employees

₿ Crypto

🔧 Hardware

💳 Fintech

Crypto • Hardware • Fintech

Solflare is an all-in-one, self-custodial wallet and payments platform built for the Solana blockchain. It provides a mobile and browser wallet for trading, staking, and managing Solana tokens (including best-route swaps, smart auto-slippage, and limit orders), offers a tap-to-sign hardware wallet called the Shield (EAL6+ secure element), and a Solflare Card to spend USDC and borrow against SOL without relinquishing private keys. Solflare emphasizes security (self-custody and hardware protection), broad token support, and an integrated experience for DeFi and Web3 users on Solana; it reports millions of users and billions in assets/trades managed.

📋 Description

• Develop and maintain backend infrastructure for applications • Ensure high performance, security, and scalability • Design and implement scalable and robust backend services • Develop APIs and integrate third-party services and Solana RPCs • Manage PostgreSQL and MongoDB databases and ensure data integrity and security • Implement caching mechanisms using Redis • Work with PrismaJS for database access and management • Deploy and manage applications on DigitalOcean and Google Cloud Platform • Use BullJS for background job processing and Cron for scheduling tasks • Write unit and integration tests using Jest • Collaborate with frontend developers and other team members • Stay updated with web development and blockchain trends and technologies • Design and implement microservices architecture

🎯 Requirements

• Minimum of 4 years of experience in backend development with a focus on web2/web3 technologies • Proficiency in Node.js, Express.js, PostgreSQL, MongoDB, Redis, and PrismaJS • Experience with cloud services, including Google Cloud Platform and DigitalOcean • Experience with DevOps practices • Experience with unit and integration tests using Jest • Knowledge of event-based architecture and microservices design patterns • Ability to design scalable systems • Familiarity with blockchain technologies, specifically Solana, is a plus • Proficiency in machine learning concepts and experience applying them to real-world problems • Experience designing and optimizing backends to handle large volumes of data efficiently

🏖️ Benefits

• Remote-first work setup with flexibility over how you work • Access to offices in Zagreb, Croatia, Belgrade, Serbia, and Novi Sad, Serbia • Company culture and benefits described on the careers site

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