Mobile Engineer React Native (100% Remote) Worldwide

Join Tether and Shape the Future of Digital Finance

At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction.

Innovate with Tether

Tether Finance: Our innovative product suite features the world’s most trusted stablecoin, USDT , relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services.

But that’s just the beginning:

Tether Power: Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state-of-the-art, geo-diverse facilities.

Tether Data: Fueling breakthroughs in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with cutting-edge solutions like KEET , our flagship app that redefines secure and private data sharing.

Tether Education : Democratizing access to top-tier digital learning, we empower individuals to thrive in the digital and gig economies, driving global growth and opportunity.

Tether Evolution : At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways.

Why Join Us?

Our team is a general talent powerhouse, working remotely from every corner of the world. If you’re passionate about making a mark in the fintech space, this is your opportunity to collaborate with some of the brightest minds, pushing boundaries and setting new standards. We’ve grown fast, stayed lean, and secured our place as a leader in the industry.

If you have excellent English communication skills and are ready to contribute to the most innovative platform on the planet, Tether is the place for you.

Are you ready to be part of the future?

About the job

We have launched Keet Mobile on iOS and Android, bringing our full P2P technology stack to everyone. Keet Mobile is not your average app: it’s heavy lifting is performed by a custom JS runtime specially designed for peer-to-peer usage (in fact, it reuses 100% of Keet Desktop’s code!). The UI logic, on the other hand, is 100% React Native, giving us flexibility and the ability to iterate quickly.

We believe this pattern opens the door to huge possibilities in the future, and we need your help getting there!

Responsibilities

In this role, you will develop and maintain Keet Mobile, our peer-to-peer chat and calling app for iOS and Android. Keet Mobile is built with React Native and Expo, and its P2P core runs on the device itself in a Bare worklet. You'll own features end to end, from UI/UX implementation to using the P2P core apis.

You will:
- Build and polish features across chat, voice and video calls, media sharing, device pairing and identity backup
- Integrate native platform capabilities such as push notifications, camera, bio-metrics and background tasks on both iOS and Android
- Profile and optimise performance on real devices, including startup time, long chats, media handling, battery and network use
- Write unit and end-to-end tests, and help keep releases stable through CI and crash reporting
- Work closely with the core P2P, design and product teams, and review code with a high bar for quality

Significant experience with React Native, Redux for state management and Redux-Saga

Experienced with WebSockets, RESTful based APIs.

Knowledge in native languages (Swift/Kotlin) and familiarity with native build tools (Xcode/Android Studio) is advantageous.

Experience working with a remote team

Interested in modernizing and optimizing different mobile or web applications.

Bonus points if you have any built something amazing on any p2p frameworks .

Important information for candidates
Recruitment scams have become increasingly common. To protect yourself, please keep the following in mind when applying for roles:

Apply only through our official channels. We do not use third-party platforms or agencies for recruitment unless clearly stated. All open roles are listed on our official careers page:

Verify the recruiter’s identity. All our recruiters have verified LinkedIn profiles. If you’re unsure, you can confirm their identity by checking their profile or contacting us through our website.

Be cautious of unusual communication methods. We do not conduct interviews over WhatsApp, Telegram, or SMS. All communication is done through official company emails and platforms.

Double-check email addresses. All communication from us will come from emails ending in@ tether.to or@ tether.io

We will never request payment or financial details. If someone asks for personal financial information or payment at any point during the hiring process, it is a scam. Please report it immediately.

When in doubt, feel free to reach out through our official website.

- Location: LATAM
- Work Model: 100% Remote
- Project: Identity Security / Cybersecurity Platform
- Seniority: Senior
- Engagement: Full-time

143L - Senior Data Engineer (Python/Go/Data Ingestion/Cloud) · Remote · LATAM

- Location: LATAM
- Work Model: 100% Remote
- Project: Identity Security / Cybersecurity Platform
- Seniority: Senior
- English Level: B2 / C1
- Engagement: Full-time

Get to Know Darwoft

At Darwoft, we build custom software solutions and partner with international companies to create high-impact digital products.

We are a Latin American technology company with a people-first culture, strong professional standards, and a long-term partnership mindset. We work with distributed teams, complex technical challenges, and clients whose technology has a direct impact on their businesses and users.

About the Project





We are partnering with an innovative cybersecurity company building a next-generation Identity Security and Identity Observability platform .

The product helps enterprise security teams understand how human users, service accounts, workloads, applications, and AI-driven identities access systems across cloud, SaaS, network, endpoint, and on-premise environments .

At the core of the platform is a highly data-intensive architecture that collects and analyzes large volumes of events, logs, network telemetry, identity activity, and security signals . This information is processed to identify unusual access patterns, security risks, identity blind spots, infrastructure misconfigurations, and potential threats.

The platform integrates with complex enterprise ecosystems including identity providers, cloud platforms, SASE solutions, SIEMs, endpoint security tools, network infrastructure, and security services.

About the Role

We're looking for a Senior Data Engineer focused on Data Ingestion, Integrations, and Collectors to become a key technical bridge between enterprise customers and the engineering organization.

This is not a traditional backend or internal data engineering position.

You'll work directly with customers to understand their infrastructure, data sources, security architecture, network topology, APIs, and workflows, then design and implement scalable mechanisms to ingest that information into the platform.

You'll combine data engineering, software engineering, solution architecture, cloud infrastructure, and technical consulting .

A major part of your mission will be building and evolving connectors and ingestion pipelines capable of integrating data from complex enterprise environments while maintaining reliability, scalability, security, and fast time-to-production.

What You'll Be Doing

- Design, develop, and maintain production-grade data collectors, connectors, and ingestion services .
- Integrate enterprise data sources including identity providers, cloud platforms, SASE solutions, network infrastructure, endpoints, applications, security platforms, and SIEM systems .
- Work directly with enterprise customers to understand their environments, data flows, APIs, security requirements, and integration constraints.
- Participate in technical onboarding processes, from initial discovery and architecture design through production deployment.
- Design scalable ingestion architectures for processing security events, logs, identity activity, network telemetry, and other high-volume data sources .
- Build integrations using REST APIs, cloud-native services, event-driven architectures, and modern software engineering practices .
- Develop backend services primarily using Python and/or Go .
- Work with SQL and NoSQL databases to store, transform, query, and analyze high-volume data.
- Build and operate containerized services using Docker and Kubernetes .
- Deploy and integrate solutions across AWS, Azure, and GCP environments .
- Troubleshoot complex customer deployment and integration issues across application, infrastructure, networking, API, and data layers.
- Optimize ingestion performance, reliability, scalability, and operational efficiency.
- Collaborate with Solution Architects, Sales Engineering, Customer Success, Product, and Engineering teams.
- Act as a trusted technical advisor around customer data architecture, collection strategies, security integrations, and implementation best practices.
- Identify recurring customer requirements and transform them into reusable connectors, platform capabilities, or improvements to the core product.
- Contribute technical insights from real-world implementations to the product roadmap.
- Support production adoption and continuously improve time-to-value for enterprise customers.
- Participate in occasional customer-facing technical sessions and, when necessary, onsite engagements.

What You Bring

- 10+ years of professional Software Engineering, Data Engineering, Platform Engineering, or related experience.
- Strong software development experience with:
- Python
- Go

- Strong experience designing and consuming REST APIs .
- Hands-on experience building data ingestion pipelines, connector frameworks, integration platforms, or similar systems .
- Experience integrating complex enterprise systems and third-party platforms.
- Solid understanding of both SQL and NoSQL databases .
- Production experience with at least one major cloud platform:

- AWS
- Azure
- GCP

- Experience working with Docker and Kubernetes .
- Strong understanding of Git-based development workflows and CI/CD practices .
- Experience designing reliable, scalable, and production-ready distributed systems.
- Strong debugging skills across APIs, infrastructure, networking, application services, and data pipelines.
- Experience working directly with customers, stakeholders, or technical partners.
- Ability to translate complex customer requirements into pragmatic technical solutions.
- Strong communication skills and the ability to operate effectively in customer-facing technical conversations.
- High degree of autonomy and ownership when solving ambiguous technical problems.

Highly Relevant Experience

Experience with any of the following will be especially valuable:

- Identity and Access Management (IAM )
- Identity Providers (IdPs )
- Identity Security
- Cybersecurity platforms
- SIEM systems
- Security telemetry
- Network security
- Endpoint security
- SASE / Zero Trust environments
- Cloud security
- Large-scale event processing
- Streaming architectures

Integration Experience

Previous experience integrating APIs or data from platforms such as the following is highly valuable:

- AWS
- Microsoft Azure
- Google Cloud
- Microsoft Entra ID / Active Directory
- Okta
- Google Workspace
- Duo
- CrowdStrike
- Zscaler
- Palo Alto
- Microsoft Defender
- SIEM and security analytics platforms





Direct experience with every platform is not required. What matters is a strong track record of learning complex APIs and transforming heterogeneous enterprise data sources into reliable integrations.

Nice to Have

- Experience with large-scale data processing or streaming platforms.
- Experience designing reusable connector SDKs or integration frameworks .
- Understanding of identity-related security concepts such as authentication, authorization, credentials, service accounts, privileged access, and non-human identities.
- Experience with security events, audit logs, network telemetry, or cloud activity data.
- Familiarity with event-driven and distributed system architectures.
- Experience deploying AI/ML-enabled applications.
- Exposure to LLMs, AI agents, or AI-powered security applications .
- Solution Architecture or Forward Deployed Engineering experience.
- Previous experience in cybersecurity startups or high-growth SaaS environments.

What Success Looks Like

Success in this role will be measured by your ability to:

- Deliver successful enterprise integrations and deployments.
- Reduce customer time-to-production.
- Build reliable and scalable ingestion solutions.
- Improve customer adoption and technical satisfaction.
- Resolve complex integration challenges efficiently.
- Turn customer-specific requirements into reusable platform capabilities.
- Contribute improvements that strengthen the scalability and flexibility of the core product.

What Darwoft Offers

- Contractor agreement with payment in USD
- 100% remote work
- Argentina's public holidays
- English classes
- Referral program
- Access to learning platforms

Explore this and other opportunities at:

- Location: Anywhere in LATAM
- Job Type: 100% Remote
- Engagement: Full-time Contractor
- Payment: USD
- Project: SportsTech – Mobile Booking & Access Management Platform
- Seniority: Senior

React Native Engineer (TypeScript/iOS-Focused) · Senior · Remote · LATAM

- Location: Anywhere in LATAM
- Job Type: 100% Remote
- Engagement: Full-time Contractor
- Payment: USD
- Project: SportsTech – Mobile Booking & Access Management Platform
- Seniority: Senior
- English Level: B2 / C1

Get to Know Darwoft

At Darwoft, we build digital products with heart. We're a Latin American technology company partnering with international clients to create innovative, human-centered software.

Our remote-first culture is built on collaboration, continuous learning, and technical excellence. We believe in creating technology that makes a real difference.

About the Role

We're looking for a Senior React Native Engineer with a strong iOS focus to help build an innovative mobile platform that transforms how people access sports facilities, book activities, and connect with other players.

The application will combine sports venue discovery, reservations, digital access management, and participant safety into a seamless mobile experience.

A key objective is to improve how sports facilities manage physical access, verify participants, and create safer environments for everyone using the platform.

You'll contribute to the product from its early development stages, taking ownership of mobile architecture, technical decisions, and application quality, with particular emphasis on the iOS ecosystem, performance, and user experience .

What You'll Be Doing

- Develop and maintain a cross-platform mobile application using React Native and TypeScript , with a primary focus on iOS.
- Build intuitive booking, scheduling, and sports facility discovery experiences.
- Implement digital access management, participant verification, and secure check-in functionalities.
- Integrate authentication, authorization, and security mechanisms to protect users and their information.
- Work with iOS-specific capabilities, native modules, device permissions, and platform integrations.
- Integrate REST APIs, payment gateways, geolocation services, and push notifications.
- Collaborate with backend engineers to support real-time availability and reservation management.
- Optimize application performance, stability, and user experience, particularly on iOS devices.
- Contribute to mobile architecture, testing, code reviews, and engineering best practices.
- Manage iOS builds, signing, provisioning profiles, TestFlight testing, and App Store releases.

What You Bring

- 8+ years of software development experience , including 5+ years working with React Native.
- Advanced proficiency in React Native, TypeScript, and JavaScript .
- Strong hands-on experience building, deploying, and maintaining production-ready iOS applications .
- Solid understanding of the iOS ecosystem, Xcode, CocoaPods, app signing, provisioning, and App Store deployment.
- Experience with React Native architecture, navigation, reusable components, and state management solutions such as Redux Toolkit or Zustand.
- Strong knowledge of REST API integrations, authentication, and secure session management.
- Experience integrating native iOS capabilities, third-party SDKs, push notifications, and geolocation services.
- Knowledge of mobile performance optimization, debugging, and automated testing.
- Familiarity with Git, CI/CD pipelines, and mobile application release processes.
- Ability to work independently, make technical decisions, and contribute to product architecture.
- Strong communication skills and a product-oriented mindset.

Nice to Have

- Native iOS development experience using Swift or SwiftUI .
- Experience with booking platforms, marketplaces, or SportsTech applications.
- Knowledge of digital access control, QR-based check-in, NFC, or identity verification.
- Experience with Apple-specific capabilities such as Apple Wallet, Sign in with Apple, or Core Location.
- Experience integrating payment solutions such as Stripe or Apple Pay.
- Familiarity with Firebase, Expo, or EAS.
- Experience with real-time applications using WebSockets.
- Experience using AI-assisted development tools such as Cursor, GitHub Copilot, or Claude Code.

What Darwoft Offers

- Contractor agreement with payment in USD.
- 100% remote work.
- Argentina's public holidays.
- English classes.
- Referral program.
- Access to learning platforms.

Explore this and other opportunities at:

#J-18808-Ljbffr

📌 Senior Backend Engineer (Python/Go) — Remote (Mendoza)
🏢 Bluelightconsulting
📍 Mendoza