Senior Java Developer (Backend/Big Data)
Company: Flinfo
Location: Remote from anywhere in the world
Salary: from $4200 to $5500
Employment Type: Full-time
An innovative AI platform for real-time geopolitical and market data analysis, processing information from over 2000 primary sources in various languages (Chinese, Arabic, Russian, etc.).
About the Role:
We are looking for an experienced Senior Java Developer to lead the scaling and optimization of our data aggregation core. You will be responsible for designing high-load pipelines that collect millions of text data in real-time, send them for processing to our AI translation and sentiment analysis models, and then instantly deliver insights to clients.
Key Responsibilities:
- Architecture Design: Development of scalable, fault-tolerant backend services in Java;
- Stream Processing: Optimization of real-time news and market metrics collection systems;
- Integration with AI/ML: Development of efficient API layers for integrating Java services with internal Large Language Models (LLMs) and NLP tools (translation, entity extraction, sentiment analysis);
- Performance Optimization: Identifying bottlenecks, optimizing database operations, reducing latency (low-latency processing).
Our Tech Stack:
- Language: Java 17+ (Spring Boot / Spring Cloud);
- Big Data & Streaming: Apache Kafka / Pulsar, Apache Flink / Spark Streaming;
- Databases: NoSQL (Elasticsearch/OpenSearch for multilingual search, MongoDB), SQL (PostgreSQL), Caching (Redis);
- Infrastructure: AWS (EC2, S3, EKS), Docker, Kubernetes, CI/CD pipelines.
What we expect from the candidate:
- Experience: 5-6+ years of commercial software development experience in Java;
- Highload: Solid knowledge of concurrency, multithreading, and distributed computing system design;
- Data Handling: Deep understanding of message queue principles (Kafka) and search engine operations (Elasticsearch);
- Language: Upper-Intermediate (B2) level English or higher for daily communication with a distributed international team;
- Bonus points for: Experience in FinTech / RegTech projects, web resource parsing, or integrating ML models into production (MLOps).
What we offer:
- Flexibility: Fully remote work format from anywhere in the world;
- Technologically Complex Product: Work at the intersection of Big Data, AI, and global market analytics;
- Product Impact: Minimal bureaucracy, flat structure, and the opportunity to directly influence architectural decisions;
- Professional Growth: Sponsorship for specialized training, courses, and participation in international conferences;
- Package: Competitive salary (based on technical interview results) + company stock options (Equity) for key employees.
Contacts: masss_D_ms
