Full-Stack / API Integration Developer

Job Title: Full-Stack / API Integration Developer

Start Date: ASAP

Duration: 1-3 months

Location: Remote (with occasional travel to Braintree, Essex)

Allocation: 2-3 days per week

Project: BigChange job-management system

About the Role We are looking for an experienced Full-Stack / API Integration Developer to help progressively develop a private business automation platform that works alongside an existing BigChange job-management system.

Substantial process-mapping and requirements work have already been completed, identifying clear opportunities to reduce repetitive administration across the business. We are seeking a practical developer who can review the existing requirements, validate the technical approach, and progressively turn them into working solutions without an extensive discovery phase.

The immediate priority is establishing a secure REST API integration with BigChange and building a private web platform, internally named "Satellite," to deliver custom automation and tools for staff.

Key Potential Development Areas

• BigChange REST API integration, including secure reading/writing of business data

• Postcode-to-address lookup and streamlined customer/property data entry

• Planning and Building Control workflow automation

• Automatic generation of PDFs, forms, and document packs

• Mapping/site-plan automation utilizing property and survey information

• Development of an online quotation/order workflow to replace existing Word-based processes • Microsoft 365 and SharePoint integrations where appropriate

• AI / OpenAI integration to optimize administrative tasks

• Multi-department workflow automation spanning sales, planning, and operations

Required Experience & Capabilities

• Proven track record as a Full-Stack and API Integration Developer

• Strong expertise in REST API integration and secure data handling

• Practical experience developing web applications and automation tools for business processes • Ability to review pre-mapped business requirements and translate them directly into working code

• Familiarity with workflow automation, PDF generation, or third-party platform integrations (e.g., Microsoft 365, SharePoint, or OpenAI)

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