Senior Mobile Engineer, Siro
$240k
AI coach for field sales reps
Be an early applicant
AI coach for field sales reps
21-100 employees
Be an early applicant
$240k
21-100 employees
Company mission
Siro's mission is to create a world where anyone can find social mobility and financial freedom through a career in sales.
Role
Who you are
- You have deep expertise in React Native (6+ years of experience, with multiple meaningful production deployments)
- You have hands-on experience maintaining and scaling existing React Native applications, not just greenfield builds
- You are comfortable working in Swift and/or Kotlin when needed to extend or augment React Native functionality (supplementary/native skill, not primary focus)
- You have demonstrated experience leading technical initiatives, owning projects, and working with high performing engineering teams
- You are well-versed in mobile engineering best practices, including performance optimization, security, testing, and release management
- You have experience creating and implementing Git-based workflows and CI/CD pipelines for mobile app releases
- You demonstrate strong problem-solving and communication skills, and can clearly articulate tradeoffs and technical decisions
What the job involves
- Contribute to the development, improvement, and long-term architecture of our React Native mobile application across iOS and Android
- Own core feature delivery end-to-end in React Native, from technical design to implementation and release
- Collaborate closely with product, design, and backend teams to translate requirements into reliable, scalable app experiences
- Maintain, refine, and modernize our existing React Native codebase, with an eye toward performance, stability, and long-term maintainability
- Uphold code quality through reviews, testing, documentation, and collaboration with fellow engineers
- Ensure application performance, reliability, and security standards are consistently met
- Contribute to continuous improvement of our engineering practices and mobile development processes
- Stay updated with emerging best practices in mobile and React Native development, and introduce improvements where beneficial
Our take
The activities of sales representatives are essential for maximising the profits of a business, but it’s difficult to optimise this when there is no efficient way of tracking conversations. It is almost impossible to know exactly how long a sales rep pitches a product or exactly what they said, and this makes it difficult for businesses to improve their sales.
Siro provides a digital mobile and desktop app that facilitates the tracking and analysis of the conversations of sales reps and clients. The app records and transcribes sales conversations, providing a quantifiable footprint of every sales conversation, which can then be analysed by sales managers for improvements.
Whilst the recording and transcription software behind Siro is nothing new, the integrated approach to tracking sales conversations has been untapped until now. Investors see its potential too, with $50 million in Series B funding awarded in 2025 to accelerate Siro's product development. The company claims that when used properly, its sales coaching system can reduce sales conversation time tenfold - giving Siro the potential to take sales coaching to a whole new level.
Freddie
Company Specialist at Welcome to the Jungle
Insights
Company
Funding (last 2 of 4 rounds)
May 2025
$50m
SERIES B
Oct 2023
$14m
SERIES A
Total funding: $69.1m
Company HQ
Flatiron District, New York, NY
Leadership
Jake Cronin
(Founder & CEO)Co-founder of Queue. Was a Woodruff Scholar at Emory where they studied Math, CS, and Chinese Studies. Opened & ran a Cutco branch office.
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