Hire RXSwift Developers
Leverage RXSwift Developers from Latin America. Proficient in reactive programming, iOS development, and asynchronous data flows with setup in just 21 days.
Hire Remote RXSwift Developers
Diego is a seasoned developer from Mexico, mastering Go, Node.js, React, and AWS.
- Go (Golang)
- Node.js
- HTML
- React.js
- AWS
Meet Miguel: A developer with 10 years of experience turning code into solutions.
- Ruby
- Data Visualization
- Python
- C++
- Docker
João is a skilled developer from Brazil, mastering Python, APIs, and SQL with flair.
- Python
- Machine Learning Basics
- CSS
- APIs
- SQL
Meet Daniela, a developer from Ecuador. 5 years in, she’s your go-to for Angular, React, and more.
- Angular
- HTML
- CSS
- React.js
- C++
Isabella is a skilled developer from Costa Rica, mastering C#, Azure, and Docker.
- C#
- Azure
- Docker
- Machine Learning Basics
- HTML
Mariana's your go-to dev with 8 years in Java, Docker, Python, Kubernetes, and CSS.
- Java
- Docker
- Python
- Kubernetes
- CSS
Ana is a dynamic developer from Panama, blending AI and Python with 7 years of expertise.
- C++
- Machine Learning Basics
- Data Visualization
- AI
- Python
"Over the course of 2024, we successfully hired 9 exceptional team members through Lupa, spanning mid-level to senior roles. The quality of talent has been outstanding, and we’ve been able to achieve payroll cost savings while bringing great professionals onto our team. We're very happy with the consultation and attention they've provided us."
“We needed to scale a new team quickly - with top talent. Lupa helped us build a great process, delivered great candidates quickly, and had impeccable service”
“With Lupa, we rebuilt our entire tech team in less than a month. We’re spending half as much on talent. Ten out of ten”
Lupa's Proven Process
Together, we'll create a precise hiring plan, defining your ideal candidate profile, team needs, compensation and cultural fit.
Our tech-enabled search scans thousands of candidates across LatAm, both active and passive. We leverage advanced tools and regional expertise to build a comprehensive talent pool.
We carefully assess 30+ candidates with proven track records. Our rigorous evaluation ensures each professional brings relevant experience from industry-leading companies, aligned to your needs.
Receive a curated selection of 3-4 top candidates with comprehensive profiles. Each includes proven background, key achievements, and expectations—enabling informed hiring decisions.
Reviews
"Over the course of 2024, we successfully hired 9 exceptional team members through Lupa, spanning mid-level to senior roles. The quality of talent has been outstanding, and we’ve been able to achieve payroll cost savings while bringing great professionals onto our team. We're very happy with the consultation and attention they've provided us."
“We needed to scale a new team quickly - with top talent. Lupa helped us build a great process, delivered great candidates quickly, and had impeccable service”
“With Lupa, we rebuilt our entire tech team in less than a month. We’re spending half as much on talent. Ten out of ten”
“We scaled our first tech team at record speed with Lupa. We couldn’t be happier with the service and the candidates we were sent.”
"Recruiting used to be a challenge, but Lupa transformed everything. Their professional, agile team delivers top-quality candidates, understands our needs, and provides exceptional personalized service. Highly recommended!"
“Lupa has become more than just a provider; it’s a true ally for Pirani in recruitment processes. The team is always available to support and deliver the best service. Additionally, I believe they offer highly competitive rates and service within the market.”
"Highly professional, patient with our changes, and always maintaining clear communication with candidates. We look forward to continuing to work with you on all our future roles."
“Lupa has been an exceptional partner this year, deeply committed to understanding our unique needs and staying flexible to support us. We're excited to continue our collaboration into 2025.”
"What I love about Lupa is their approach to sharing small, carefully selected batches of candidates. They focus on sending only the three most qualified individuals, which has already helped us successfully fill 7 roles.”
"We hired 2 of our key initial developers with Lupa. The consultation was very helpful, the candidates were great and the process has been super fluid. We're already planning to do our next batch of hiring with Lupa. 5 stars."
"Working with Lupa for LatAm hiring has been fantastic. They found us a highly skilled candidate at a better rate than our previous staffing company. The fit is perfect, and we’re excited to collaborate on more roles."
"We compared Lupa with another LatAm headhunter we found through Google, and Lupa delivered a far superior experience. Their consultative approach stood out, and the quality of their candidates was superior. I've hired through Lupa for both of my companies and look forward to building more of my LatAm team with their support."
“We’ve worked with Lupa on multiple roles, and they’ve delivered time and again. From sourcing an incredible Senior FullStack Developer to supporting our broader hiring needs, their team has been proactive, kind, and incredibly easy to work with. It really feels like we’ve gained a trusted partner in hiring.”
Working with Lupa was a great experience. We struggled to find software engineers with a specific skill set in the US, but Lupa helped us refine the role and articulate our needs. Their strategic approach made all the difference in finding the right person. Highly recommend!
Lupa goes beyond typical headhunters. They helped me craft the role, refine the interview process, and even navigate international payroll. I felt truly supported—and I’m thrilled with the person I hired. What stood out most was their responsiveness and the thoughtful, consultative approach they brought.
RXSwift Developers Soft Skills
Problem Solving
Design reactive iOS applications with clean streams.
Adaptability
Update bindings for evolving UI requirements.
Communication
Explain reactive patterns to team members.
Collaboration
Work closely with designers to ensure UI fluidity.
Attention to Detail
Maintain precise event and state handling.
Curiosity
Explore new reactive libraries for iOS.
RXSwift Developers Skills
iOS Development
Build high-performance iOS apps using RXSwift.
Reactive Programming
Implement reactive patterns with RXSwift observables.
UI Binding
Bind UI components to reactive data streams.
Testing
Write and run unit tests for RXSwift-based features.
Performance Optimization
Streamline reactive flows for smoother app performance.
How to Write an Effective Job Post to Hire RXSwift Developers
Recommended Titles
- RxSwift iOS Developer
- Reactive Programming Engineer – RxSwift
- Swift Mobile Application Developer – RxSwift
- RxSwift UI Binding Specialist
- Asynchronous Data Handling Developer – RxSwift
- RxSwift App Optimization Engineer
Role Overview
- Tech Stack: Skilled in reactive programming with RXSwift for iOS apps.
- Project Scope: Build scalable, reactive mobile features with high performance.
- Team Size: Join a native iOS team of 3–6 developers.
Role Requirements
- Years of Experience: At least 3 years in iOS development.
- Core Skills: Asynchronous data streams, reactive bindings, and UI state management.
- Must-Have Technologies: RXSwift, Swift, Xcode, iOS SDK, Combine.
Role Benefits
- Salary Range: $95,000 – $140,000 depending on mobile expertise.
- Remote Options: Hybrid or fully remote for strong candidates.
- Growth Opportunities: Build cutting-edge mobile experiences using reactive paradigms.
Do
- List RxSwift reactive programming expertise
- Include asynchronous data stream handling skills
- Mention UIKit and SwiftUI integration
- Highlight MVVM and clean architecture patterns
- Use concurrency and state-management language
Don't
- Don’t confuse this with generic Swift—RXSwift is reactive programming at its core.
- Avoid ignoring observable sequences and operators expertise.
- Never skip multi-threading and concurrency handling skills.
- Refrain from oversimplifying MVVM integration experience.
- Don’t omit memory management in reactive contexts.
Top RXSwift Developers Interview Questions
RxSwift Developer questions for reactive iOS skill
What’s your experience using RXSwift in iOS development?
Look for understanding of reactive programming, observables, and data streams.
How do you manage memory and avoid retain cycles with RXSwift?
Expect use of dispose bags, weak references, and proper subscription cleanup.
How do you handle complex UI bindings with RXSwift?
Look for combining operators, throttling, and state management patterns.
What’s your approach to testing RXSwift code?
Expect use of test schedulers, mock observables, and predictable async flows.
Describe a project where RXSwift improved app responsiveness.
Look for smoother UI updates, reduced boilerplate, and better user experience.
Observable chain leaks memory—how do you clean it up?
Look for `disposeBag` management, weak self capture, takeUntil patterns, and avoiding retain cycles in closures.
UI updates happen off main thread—how do you fix it?
Expect use of `observeOn(MainScheduler.instance)`, thread-safe bindings, and minimal UI work inside subscriptions.
Backpressure overwhelms subscribers—what’s your mitigation?
Look for throttling, debouncing, buffering, sampling, and controlling operator flow.
Complex chains become unreadable—how do you refactor?
Expect splitting into smaller observables, named operators, and using subjects for clearer data flow.
Testing reactive streams is difficult—how do you handle it?
Expect TestScheduler usage, hot/cold observable simulation, and marble diagram validation.
When did you debug a memory leak in an RXSwift project?
Expect identifying retain cycles, using weak references, and disposing properly.
Describe fixing unexpected sequence behavior in RXSwift.
Look for correcting operators, threading, and subscription order.
Tell me about resolving race conditions with RXSwift streams.
Expect using schedulers, serial execution, and replay subjects.
Share an example of optimizing heavy RX chains.
Look for flattening observables, limiting operators, and using `.share()`.
How have you debugged silent failures in reactive pipelines?
Expect adding error handlers, logging intermediate steps, and using `.debug()`.
- Overuses reactive streams for simple state changes
- Fails to dispose subscriptions properly
- No error handling in observable chains
- Neglects testing of asynchronous flows
- Poor separation of concerns in reactive layers
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Tap into our knowledge of the LatAm market to secure the best talent at competitive, local rates. We know where to look, who to hire, and how to meet your needs precisely.
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Retain complete control over your hiring process. With our strategic insights, you’ll know exactly where to find top talent, who to hire, and what to offer for a perfect match.
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Lupa will help you hire top talent in Latin America.
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Top RXSwift Developers Interview Questions
RxSwift Developer questions for reactive iOS skill
What’s your experience using RXSwift in iOS development?
Look for understanding of reactive programming, observables, and data streams.
How do you manage memory and avoid retain cycles with RXSwift?
Expect use of dispose bags, weak references, and proper subscription cleanup.
How do you handle complex UI bindings with RXSwift?
Look for combining operators, throttling, and state management patterns.
What’s your approach to testing RXSwift code?
Expect use of test schedulers, mock observables, and predictable async flows.
Describe a project where RXSwift improved app responsiveness.
Look for smoother UI updates, reduced boilerplate, and better user experience.
Observable chain leaks memory—how do you clean it up?
Look for `disposeBag` management, weak self capture, takeUntil patterns, and avoiding retain cycles in closures.
UI updates happen off main thread—how do you fix it?
Expect use of `observeOn(MainScheduler.instance)`, thread-safe bindings, and minimal UI work inside subscriptions.
Backpressure overwhelms subscribers—what’s your mitigation?
Look for throttling, debouncing, buffering, sampling, and controlling operator flow.
Complex chains become unreadable—how do you refactor?
Expect splitting into smaller observables, named operators, and using subjects for clearer data flow.
Testing reactive streams is difficult—how do you handle it?
Expect TestScheduler usage, hot/cold observable simulation, and marble diagram validation.
When did you debug a memory leak in an RXSwift project?
Expect identifying retain cycles, using weak references, and disposing properly.
Describe fixing unexpected sequence behavior in RXSwift.
Look for correcting operators, threading, and subscription order.
Tell me about resolving race conditions with RXSwift streams.
Expect using schedulers, serial execution, and replay subjects.
Share an example of optimizing heavy RX chains.
Look for flattening observables, limiting operators, and using `.share()`.
How have you debugged silent failures in reactive pipelines?
Expect adding error handlers, logging intermediate steps, and using `.debug()`.
- Overuses reactive streams for simple state changes
- Fails to dispose subscriptions properly
- No error handling in observable chains
- Neglects testing of asynchronous flows
- Poor separation of concerns in reactive layers
