 
						(Senior) Fullstack Engineer I 3+ years I Remote-first startup
4 weeks ago
We are seeking a Full Stack Developer with expertise in building scalable applications, backend integrations, and AI-driven fraud detection systems. The ideal candidate will bring a strong technical foundation, a passion for problem-solving, and practical knowledge of designing secure, high-performance systems.
Location: Remote – core team across Europe & Asia
Working Language: English
**
About the project** 
Klink is a leading customer acquisition marketplace & offerwall. The platform provides a unique opportunity for its users to earn rewards starting from $0 of personal investment and has already partnered with some of the leading companies in web2 & web3 spaces, including Binance, Uber, Amazon Prime and Coinbase.
The company is backed by top-tier VCs in the US & Asia
TasksWhat You’ll Do
- Application Development: Design and develop scalable, user-friendly applications (frontend & backend).
- Query-Based Services: Build and optimize high-performance query-based services for analytics and reporting.
- API Integrations: Design, integrate, and maintain RESTful/GraphQL APIs with third-party services and internal platforms.
- Implement fraud detection systems using ML models, anomaly detection, and rule-based engines.
- Develop agent-based monitoring for real-time transaction checks.
- Database Engineering: Architect and manage relational & NoSQL databases, with a focus on query optimization.
- Security Engineering: Apply best practices in data security, identity management, and compliance.
- AI & Automation: Using AI models automate the developing process and monitoring things.
- System Reliability: Monitor, debug, and improve applications for speed, scalability, and reliability.
- Cross-Team Collaboration: Work closely with product, design, and security teams for feature rollouts.
Must-Have:
- Strong experience in JavaScript/TypeScript (Node.js, React/Next.js or equivalent).
- Experience in REST/GraphQL API development & integrations.
- Strong knowledge of databases (PostgreSQL, MongoDB, or similar).
- Prior work with fraud detection, anomaly detection, or ML-driven systems.
- Cloud deployment experience (AWS, GCP, or Azure) and containerization (Docker/Kubernetes).
- Strong problem-solving, debugging, and performance optimization skills.
Nice-to-Have:
- Knowledge of stream processing (Kafka, Kinesis,RabbitMq).
- Familiarity with real-time transaction monitoring.
- Experience in DevOps, CI/CD, and observability tools (Grafana, Datadog, etc.).
- Background in fintech/payments/e-commerce fraud systems.
- Join at an early stage and be involved in decisions that shape the company’s future and the opportunity to build your own success story
- Take ownership of key aspects of the Klink product development
- Take a trip with an international team of highly skilled individuals who will always support you on this journey
If you want to know more about this opportunity please complete this application with your most recent work profile and we will get back to you ASAP.
We are excited to meet you
Klink Finance is a global earnings platform and affiliate offer network, connecting users, advertisers, and partners worldwide.
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 Vadodara, India Klink Finance Full timeWe are seeking a Full Stack Developer with expertise in building scalable applications, backend integrations, and AI-driven fraud detection systems. The ideal candidate will bring a strong technical foundation, a passion for problem-solving, and practical knowledge of designing secure, high-performance systems. Location: Remote – core team across... 
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