Job Description (Having experience in the FinTech is a must)
We are looking for a highly skilled and experienced Senior Python Developer to join our fast-paced team in the crypto exchange domain. This role is centered around building and optimizing backend systems that power real-time trading, blockchain data processing, and wallet infrastructure. The ideal candidate will have deep expertise in Python development and a strong track record of creating scalable, secure, and high-performance systems tailored to the unique demands of cryptocurrency platforms and digital asset exchanges.
About the Project
We are building a full-scale next-generation crypto exchange that goes beyond traditional financial services. Our platform offers seamless international transfers and multi-currency crypto wallet management. With a single account, users can easily transact across a wide range of cryptocurrencies worldwide—as if they held dozens of local wallets across the globe. Responsibilities * Designed, developed, and maintained Python-based backend services powering a crypto exchange platform, including wallet operations, trading engines, and transaction settlement systems. * Built and deployed scalable real-time data pipelines for blockchain data ingestion, trade analytics, and market monitoring. * Collaborated closely with cross-functional teams—product, frontend, mobile, and DevOps—to deliver secure, high-performance crypto trading features. * Engineered and optimized core systems including crypto payment gateways, multi-asset wallet infrastructure, and compliance workflows (KYC/AML). * Ensured data consistency, availability, and security across all crypto-related services and transaction flows. * Conducted code reviews, maintained high test coverage, and contributed to CI/CD pipelines for frequent and stable releases. * Developed RESTful APIs and microservices for third-party integrations involving liquidity providers, fiat on/off ramps, and regulatory tools. * Monitored and fine-tuned system performance to support high-frequency trading and peak load scalability. * Implemented advanced authentication mechanisms such as 2FA, hardware wallet support, and biometric login for secure user access. * Worked with the security team to identify and mitigate platform vulnerabilities, ensuring full compliance with crypto industry best practices. * Contributed to user-facing features like real-time trade alerts, portfolio tracking, transaction histories, and audit logs.
Technical Skills * Strong expertise in Python backend development within crypto/FinTech environments. * Experience developing high-throughput, low-latency systems for real-time trading and blockchain transaction processing. * Proficiency with Python libraries and frameworks like FastAPI, Flask, Django, as well as data tools such as Pandas, NumPy, and Celery. * Solid knowledge of relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis) databases optimized for trading and blockchain data. * Hands-on experience with cloud infrastructure (AWS, GCP, or Azure), with a focus on secure, scalable deployments for crypto services. * Practical use of Docker and Kubernetes for container orchestration and microservice management in production environments. * Deep understanding of security protocols, including data encryption, secure key storage, and wallet safety (e.g., cold storage, HSMs). * Familiarity with blockchain integrations (e.g., Ethereum, Bitcoin nodes), smart contract interactions, and Web3 infrastructure. * Experience with financial and crypto-specific APIs: on-chain explorers, exchange liquidity providers, fiat gateways, and compliance services.
Additional Qualifications * Knowledge of financial regulations and compliance standards, such as PSD2, GDPR, and AML/KYC guidelines. * Understanding of transaction monitoring systems, fraud detection mechanisms, and anomaly detection using machine learning. * Familiarity with DevOps practices, including CI/CD pipelines tailored to FinTech environments.
Qualifications * Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field. * Minimum of 5 years of professional software development experience, with at least 3 years focusing on Python in FinTech. * Demonstrable experience in delivering secure, scalable, and user-friendly solutions in the financial domain.
What We Offer * The opportunity to work on a state-of-the-art mobile banking platform that serves millions of users worldwide. * Remote-friendly work environment with a collaborative and innovative team culture. * Competitive salary and comprehensive benefits package.
