Integration Developer (API Specialist) - Freelance AI Trainer
M
MindriftAI, Generative AI
United Kingdom. London, England, United Kingdom. Manchester, England, United Kingdom. Birmingham, England, United Kingdom. Glasgow, Scotland, United KingdomContractMiddle
Salary60 USD per hour
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Job Details
- Languages
- English
- Experience
- At least 2-3 year of relevant experience
- Required Skills
- Software DevelopmentRESTful APIsJSONGoogle SheetsNotion
Requirements
- At least 2-3 year of relevant experience in API integrations, automation, backend systems, or software development
- Bachelor's or Master’s Degree in Computer Science, Engineering, Information Technology, or related technical fields is a plus
- Strong experience working with REST APIs, webhooks, and data exchange formats (JSON or similar)
- Proven ability to design and manage integrations across multiple SaaS tools and business systems
- Solid background in database synchronization across platforms (Airtable, Google Sheets, Notion or similar)
- Experience building reliable data pipelines with proper error handling, retries, and validation mechanisms
- Demonstrated experience building scalable, fault-tolerant integration systems across multiple services
- Strong understanding of API rate limits, pagination, authentication, and performance optimization techniques
- Experience working with real-time vs. batch processing pipelines and choosing appropriate architectures
- Experience integrating communication systems (email, messaging APIs, outreach automation)
- Strong attention to detail and commitment to data consistency and reliability
- Self-directed work ethic with the ability to troubleshoot and optimize integration workflows independently
- Portfolio or examples of integration systems or API-based projects is a plus
- English proficiency: Upper-intermediate (B2) or above
Responsibilities
- Collaborate with Tendem Agents to provide system integration expertise, structured thinking, and quality control
- Design and evaluate integrations between core business systems (CRMs, ad platforms, email tools)
- Build and optimize workflows using APIs, webhooks, and real-time or batch data pipelines
- Connect and synchronize databases across platforms (Airtable, Google Sheets, Notion or similar)
- Ensure reliable, real-time data transfer and consistency across systems and services
- Troubleshoot and improve data flow performance, latency, and failure handling
- Support integration of automated communication systems (e.g., messaging, outreach, or calling workflows)
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