iOS Engineer

2 weeks ago

Greater Kolkata Area, India Persist Ventures Full time ₹ 5,00,000 - ₹ 25,00,000 per year

About Persist Ventures
Persist Ventures is an innovation-focused venture studio that empowers visionary founders to build industry-defining startups.

We back unstoppable builders with equity, funding, and the resources to launch and scale impactful companies.

Our flagship program, Start-Upathon, is designed to give high-potential founders a platform to turn bold ideas into successful ventures no formal credentials required, just ambition and execution.

We are currently developing AceTime, a next-generation communication platform that combines the best of FaceTime and WhatsApp with the intelligence of AI.

AceTime will deliver live video/audio calling, real-time AI assistance, instant transcription and summaries, contextual memory, and seamless connectivity to transform how people communicate globally.

Position Overview
We are seeking a highly skilled iOS Engineer to lead the development of AceTimes minimum viable product (MVP).

This role requires a hands-on builder who can rapidly turn ideas into scalable, high-performance products.

You will work closely with the founder, drive technical decisions, and help shape the future of AI-powered communication.

Key Responsibilities

  • End-to-end iOS app development : Design, develop, test, and launch the AceTime MVP on iOS (from prototype to TestFlight release).
  • Feature implementation : Build and optimize key features, including :
  • Real-time video/audio calling
  • Live transcription overlays and AI-generated meeting summaries
  • AI-assisted group and direct messaging
  • Persistent contextual memory for contacts
  • Collaboration and strategy : Work directly with the founder to define product roadmap, prioritize features, and iterate quickly based on feedback.
  • Scalability and reliability : Ensure high performance, low latency, and robust privacy measures to support a global user base.
  • Technical leadership : Stay updated on emerging iOS and AI technologies, advocating best practices for code quality and system architecture.

Required Skills & Experience

  • Proven experience in iOS app development using Swift and SwiftUI.
  • Strong expertise in real-time communication technologies (WebRTC, CallKit, VoIP).
  • Backend development experience , Python, or similar) for call handling and messaging infrastructure.
  • Hands-on experience integrating AI/ML APIs (OpenAI, Whisper, speech-to-text, NLP).
  • Solid understanding of real-time messaging systems (WebSockets, Firebase, or similar).
  • Strong grasp of data privacy, security, and compliance in communication apps.

Nice-to-Have

  • Knowledge of video streaming optimization and low-latency architecture.
  • Experience scaling apps to global audiences.
  • Background in building social, messaging, or AI-driven applications.
  • Strong sense of design and ability to create intuitive, user-friendly interfaces.

Who You Are

  • A relentless builder who thrives in fast-paced, hackathon-like environments.
  • Entrepreneurial in mindset motivated by impact, ownership, and innovation.
  • Passionate about AI, communication technology, and social platforms

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