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Velotio Technologies
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Senior iOS Engineer

Senior iOS Engineer

Velotio Technologies

6 years

0 Lacs

Pune Maharashtra India

Posted:1 day ago| Platform:

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Skills Required

engineering stack development data saas iot learning software processing compliance security maintenance logic ui encryption network architecture design layers testing integration test documentation api code swift uikit xcode debugging profiling management programming mvvm singleton xctest mocking tdd accessibility optimization networking rendering shipping connect git agile scrum diversity

Work Mode

On-site

Job Type

Full Time

Job Description

Velotio Technologies is a product engineering company working with innovative startups and enterprises. We are a certified and recognized as one of the best companies to work for in India. We have provided full-stack product development for 110+ startups across the globe building products in the cloud-native, data engineering, B2B SaaS, IoT & Machine Learning space. Our team of 400+ elite software engineers solves hard technical problems while transforming customer ideas into successful products.

Requirements

We are seeking a Senior iOS Engineer to join our SDK development team. You will be responsible for maintaining, enhancing, and developing a secure payment processing iOS SDK that handles sensitive financial data in compliance with enterprise-grade security standards.

SDK Development & Maintenance: Lead development of modular iOS SDK components related to core logic, security, UI, and analytics
Security Implementation: Implement and maintain PCI DSS-compliant encryption, SSL pinning, and secure data handling mechanisms
Payment Processing: Develop and maintain secure payment method creation and transaction processing logic
UI Component Development: Build and maintain secure, customizable payment form components using SwiftUI
Network Layer Architecture: Design and implement robust, testable network layers with retry logic and error handling
Testing & Quality Assurance: Write comprehensive unit and integration tests; ensure high test coverage
Documentation: Create and maintain technical documentation, API references, and implementation guides
Code Review & Mentorship: Review code from junior developers and provide technical guidance

Required Technical Skills:

Core iOS Development

Swift 6.1+ - Expert-level proficiency with modern Swift features
iOS 13.0+ - Deep understanding of platform capabilities
SwiftUI & UIKit - Advanced UI development
Swift Package Manager - Experience with dependency management
Xcode - Proficient with debugging, profiling, and tools

Security & Cryptography

SHA-256, CommonCrypto, SSL/TLS Pinning
PCI DSS Compliance, Secure Memory Management, Keychain Services

Network & API Development

Async/Await, URLSession, RESTful APIs, Codable, Error Handling
Protocol-Oriented Programming for modular, testable networking

Architecture & Design Patterns

MVVM, Protocol-Based Design, Builder, Singleton, Observer, Factory

Testing & Quality

Unit Testing (XCTest), Integration Testing, Mocking, TDD, CI Integration

Payment Processing Knowledge

Credit Card Validation, Gateway Integration, Transaction Handling, Security Standards

Advanced Technical Concepts

Memory Safety, Secure Data Wrapping, Thread Safety
Network Security (cert validation, pinning, interceptors)
Form Validation (real-time, accessibility, i18n)
Error Handling (types, retry logic, resilience)
Performance Optimization (networking, UI rendering, memory usage)

Experience Requirements:

6+ years of iOS development experience
3+ years working with payment processing or financial applications
2+ years of experience in security-focused development
Proven track record of shipping production SDKs or libraries
Experience with enterprise-grade applications and compliance requirements

Good to have:

App Store Connect, Advanced Git workflows, Agile/Scrum

Benefits

Our Culture:

We have an autonomous and empowered work culture encouraging individuals to take ownership and grow quickly
Flat hierarchy with fast decision making and a startup-oriented "get things done" culture
A strong, fun & positive environment with regular celebrations of our success. We pride ourselves in creating an inclusive, diverse & authentic environment

At Velotio, we embrace diversity. Inclusion is a priority for us, and we are eager to foster an environment where everyone feels valued. We welcome applications regardless of ethnicity or cultural background, age, gender, nationality, religion, disability or sexual orientation.

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Velotio Technologies

Software Development

Pune Maharashtra

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Senior iOS Engineer