Senior iOS Developer with AWS Cloud Expertise (Part-Time, ~40%) - Contract / Freelance

We’re looking for a senior iOS developer with strong AWS cloud experience to take technical ownership of our iOS scanning application and its supporting cloud pipeline.

You’ll work closely with an experienced full-stack engineer who owns the broader product logic and backend evolution, while you focus on depth, performance, and reliability of the scanning system.

This role is designed as a long-term, part-time engagement (~2 days per week), ideal for a senior engineer who enjoys deep technical challenges and autonomy without full-time commitment.

What You'll Be Working With

Our technology stack includes:

• iOS: Native Swift/Objective-C development with Structure SDK integration for depth sensing


• AWS Services: EC2, S3, RDS, SQS, CloudWatch, SNS, SES, ELB, Auto Scaling Groups


• Backend: Python 2.7, Django 1.8, Django REST Framework, Celery


• Infrastructure: RESTful APIs, Redis, queue-based job processing


• 3D Pipeline: CPU-based reconstruction algorithms processing depth sensor data

Key Responsibilities

• Maintain and enhance the native iOS scanning application that integrates with Structure SDK


• Optimize the low-poly preview generation on-device for real-time feedback


• Work with AWS infrastructure including EC2 workers, S3 storage architecture, and SQS-based job queues


• Collaborate on the 3D reconstruction pipeline that processes scanned data


• Monitor system performance using CloudWatch metrics and alerting


• Handle calibration parameters and sensor integration for various iPad models


• Participate in infrastructure scaling and optimization efforts

Required Skills

• Strong native iOS development experience (Swift and/or Objective-C)


• Deep AWS knowledge: EC2, S3, RDS, SQS, Auto Scaling Groups, CloudWatch


• Understanding of RESTful API integration and asynchronous job processing


• Comfortable working with Python-based backends


• Experience with queue systems (SQS, Redis, Celery)


• Strong debugging and performance optimization skills

Nice to Have

• Experience with 3D graphics, point clouds, or mesh processing


• Knowledge of computer vision or photogrammetry


• Experience with depth sensors or 3D scanning technologies (Structure SDK or similar)


• Familiarity with Django/Django REST Framework


• Experience with billing integrations (Chargify, Braintree)

Why Join apeirum?

• Work in an international, high-performance team.


• Be part of projects where your input matters — from architecture to implementation.


• Flexible work setup with trust-based autonomy.


• A culture that values quality, initiative, and growth over bureaucracy.


• Join us for a yearly strategic offsite meeting filled with team-building activities and social events.

Ready to Make an Impact?

We’re looking for someone who thrives in a fast-paced, innovation-driven environment — someone adaptable, curious, and ready to solve real problems with smart, modern tools. If that sounds like you, we’d love to hear your story.