[Hiring] API Integration Developer @Celeste

Role Description

As an API Integration Developer (Python), you'll play a crucial role in connecting carrier and customer data feeds, building internal tooling for Product Operations, and closing an immediate onboarding capacity gap for our B2B AI-powered supply chain platform. You'll work directly with messy integration engineering—handling ERP exports, shipment files, invoices, and third-party APIs that rarely match their documentation—while automating repeated tasks away to keep operations scaling smoothly.

Location: 100% Remote (Philippines-based)

Schedule: Full-time, 40 hours/week, UK business hours (GMT)

Role Type: Independent Contractor

Rate: Starting at Php850/hour (room for flexibility, depending on experience)

What you'll do

• This is a high-impact engineering and customer-facing role where you will build and maintain messy integrations while ensuring seamless data onboarding.
• Bridge the gap between technical data engineering, internal product operations, and customer technical teams.

Integration Engineering & Data Onboarding

• Build, maintain, and troubleshoot connections for carrier and customer data feeds across ERP exports, shipment files, invoices, and third-party APIs.
• Work with messy third-party data, resolving missing fields, changing schemas, bad encodings, and mixed units.
• Design, build, and deploy internal tooling, configurations, and templates to automate repeated manual onboarding tasks away.
• Perform thorough data investigation and data-feed triage using Python and SQL.

Technical Collaboration & Operations

• Build internal tools and support workflows needed by the Product Operations team.
• Partner with lead engineers for day-to-day technical direction while maintaining a dotted line to Product Operations.
• Maintain clean codebases and contribute to API-client improvements and integration reliability.

Customer Engagement & Communication

• Lead technical sessions with customer technical teams to explain data discrepancies, API requirements, and integration challenges in plain language.
• Run technical calls effectively, providing clear written and spoken updates to both internal stakeholders and client teams.

Qualifications

• Legally eligible to work in the Philippines as an Independent Contractor.
• 2–5 years of hands-on software or integration engineering experience, with named third-party systems you have connected in production.
• Mid-level proficiency in Python and solid SQL skills to investigate and solve complex data problems.
• Hands-on REST API experience covering authentication, pagination, retries, and rate limits.
• Proven track record of working with messy third-party data and automating manual steps using tools, templates, or scripts.
• Strong written and verbal English communication skills, with the ability to lead technical discussions with external teams.
• Uses AI coding tools (e.g., Cursor, Claude, Copilot) routinely and can validate/verify generated code output.

Bonus points

• Experience with logistics, freight, parcel, or supply-chain data workflows.
• Familiarity with warehouse and data tools such as BigQuery or dbt.
• Experience handling EDI, carrier, or 3PL integrations.
• Background in technical onboarding or implementation engineering at a fast-paced B2B SaaS startup.