Golang Engineer

We are building a modern friend matching mobile application focused on creating genuine friendships through smart matching based on personality, interests, values, and lifestyle. The app includes real-time chat, events, geolocation discovery, feeds, and meaningful social features.

Our Portuguese client is looking for an experienced Golang Backend Developer to design and develop a scalable, high-performance backend.

Key Responsibilities

• Design and develop robust, scalable REST APIs and WebSocket services in Go.
• Implement core features: user management, advanced matching engine, real-time messaging, notification system, geolocation services, events, etc.
• Work with databases (PostgreSQL, Redis) and optimize queries for performance.
• Integrate with mobile apps (Flutter) and third-party services (Firebase, push notifications, etc.).
• Ensure high availability, security, and data privacy (GDPR compliant).
• Implement caching strategies, background jobs, and real-time features.
• Write clean, well-tested, and maintainable code.
• Collaborate closely with the Flutter frontend developer and the product team.

Requirements

• 3+ years of strong commercial experience with Golang (Go).
• Solid expertise in building RESTful APIs and WebSocket services.
• Strong knowledge of PostgreSQL and Redis.
• Experience with message queues (RabbitMQ / Kafka) is a plus.
• Understanding of Clean Architecture, microservices, and Domain-Driven Design.
• Experience with authentication (JWT, OAuth), security best practices, and rate limiting.
• Knowledge of Docker, Docker Compose, and basic DevOps practices.
• Good English communication skills (Portuguese is a strong advantage).

Would Be a Plus

• Previous experience with social networking, dating, or community platforms.
• Experience with recommendation/matching algorithms.
• Knowledge of Elasticsearch or similar search engines.
• CI/CD pipelines (GitHub Actions, etc.).
• Familiarity with cloud platforms (AWS / GCP / Azure).

What We Offer

• Competitive compensation (based on experience and contract type).
• Fully remote work with flexible schedule.
• Direct collaboration with the Portuguese founder and small agile team.
• Opportunity to build a meaningful product from the ground up.
• Long-term cooperation.