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Build your dream team with App developers, engineers and architects from Flexiple, handpicked through a 6-stage screening process.
GAUTHAM PAI

GAUTHAM PAI

Senior App Developer

WORKED AT

Photon
Know more about Gautham
ERIC GROSSE

ERIC GROSSE

Software Engineer

WORKED AT

Navori Labs
Know more about Eric
JEFF LEI

JEFF LEI

Senior App Developer

WORKED AT

phData
Know more about Jeff
DJURO ALFIREVIC

DJURO ALFIREVIC

Senior App Developer

WORKED AT

Reddit
Know more about Djuro
ROBERT GACSI

ROBERT GACSI

Senior App Developer

WORKED AT

Bitrise
Know more about Robert

You Bring the Vision. We Build the Team.

Flexiple spent good amount of time understanding our requirements, resulting in accurate recommendations and quick ramp up by quality developers.
Narayan Vyas, Senior PM (YC S12)
Overall Flexiple brought in high-level of transparency with quick turnarounds in the hiring process at a significantly lower cost than any other alternate options out there.
Esther Hersh, Co-founder ('17 NYU Grad)
Flexiple has been instrumental in helping us grow at a fast pace. Their vetting process for engineers is top notch and they connected us with quality talent quickly.
Tanu V, Founder (#1 Salesforce Leads App)

Top App Developers are Handpicked by Flexiple

  • DJURO ALFIREVIC
    DJURO ALFIREVIC
    iOS REACT NATIVE

    Djuro has developed 140+ apps, having worked as an iOS architect for a $300 million-valued startup, Muncherry, and also as a team lead of big ... Djuro has developed 140+ apps, having worked as an iOS architect for a $300 million-valued startup, Muncherry, and also as a team lead of big projects such as Human Dx. Read MoreRead Less

    Worked at Reddit

    Get a Quote
  • AKSHAY MOORTHY
    AKSHAY MOORTHY
    ANDROID

    Akshay has built products across industries such as Social networking, Food delivery, Fitness, among others. Always excited by new opportunities, he is great fun to ... Akshay has built products across industries such as Social networking, Food delivery, Fitness, among others. Always excited by new opportunities, he is great fun to work with. Read MoreRead Less

    Worked at Peach Studio

    Get a Quote
  • REX VARGHESE
    REX VARGHESE
    ANDROID PHP

    With 15+ years of experience as a web & mobile developer and architect, Rex has worked on products in e-commerce, SAAS, and gaming industries.

    Worked at Honeycomb

    Get a Quote
  • SARAVANAN V
    SARAVANAN V
    iOS REACT NATIVE NODE

    Saravanan has built iOS apps across gaming, messaging and e-commerce. He has written comprehensive guides on build optimization and functional programming.

    Worked at Walgreens

    Get a Quote
  • GAUTHAM PAI
    GAUTHAM PAI
    iOS REACT NATIVE ANGULAR

    With 9+ years of experience in building mobile apps, Gautham has worked with companies such as Fidelity Investments and across domains such as Finance, Gaming, ... With 9+ years of experience in building mobile apps, Gautham has worked with companies such as Fidelity Investments and across domains such as Finance, Gaming, Mortgage, etc. Read MoreRead Less

    Worked at Photon

    Get a Quote
  • ROBERT GACSI
    ROBERT GACSI
    iOS Swift

    Robert is an iOS developer with a rich experience of well over 10 years under his belt. He has worked on developing a variety of apps across domains. Some of his... Robert is an iOS developer with a rich experience of well over 10 years under his belt. He has worked on developing a variety of apps across domains. Some of his work includes projects in social media, entertainment, chat based applications. He's worked on mostly native iOS apps as an individual contributor as well as a team player. He has in-depth knowledge in various components of iOS development from the conceptualization to the deployment phase.Read MoreRead Less

    Worked at Bitrise

    Get a Quote
  • SAMUEL APPIAH-KUBI
    SAMUEL APPIAH-KUBI
    Java Python NodeJS

    Samuel is a full-stack developer with 3 years of experience. He is adept in technologies like NodeJS, ExpressJS, ReactJS, Python, etc. He's also a hands-on ... Samuel is a full-stack developer with 3 years of experience. He is adept in technologies like NodeJS, ExpressJS, ReactJS, Python, etc. He's also a hands-on mobile developer. Read MoreRead Less

    Worked at Microsoft

    Get a Quote
  • VINEETHA VENUGOPAL
    VINEETHA VENUGOPAL
    ANDROID

    Vineetha is an NIT Jaipur alumni having 6+ years of experience in Android development with the likes of Samsung R&D, Shop101 & Infosys. She specializes ... Vineetha is an NIT Jaipur alumni having 6+ years of experience in Android development with the likes of Samsung R&D, Shop101 & Infosys. She specializes in highly scalable, real-time Android applications, with past experience in C#, Java & database technologies. Her extensive experience covers a variety of project setups from building apps for startups to the development & continuous delivery for large-scale, long-term projects. Read MoreRead Less

    Worked at Samsung

    Get a Quote
  • Get access to 103 vetted App engineers

    Unlock 103 profiles

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Only The Best

Our developers are selected through a 6-stage screening process. As a result, our developers have an average of 5-years industry experience and are ready to immediately contribute on projects.

Role-Specific Developers

Save time and energy lost in manually sifting through profiles. Our solutions expert along with our Director of Technology will handpick developers who are a perfect match for your requirement.

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With immense confidence in the quality of our developers and the accuracy of our recommendations, we are happy to offer you a 2-week trial where you pay only if you are satisfied.

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Our 6-Step Developer Screening Process

45.4%pass rate

Depth in past work

Flexiple Developers are reviewed on their experience and complexity of products built. Those who display depth and have worked on end-to-end projects are given an introductory call.

14.6%pass rate

Good communication and motivation

Over a call, the developer’s ability to communicate in an articulate manner is tested. A deeper understanding of the candidate’s technical experience and also motivation to freelance is achieved.

3.1%pass rate

Strong technical abilities

Over one or more F2F interviews, the developer’s involvement and performance in building complex software products are assessed. This sets the platform to delve deeper into technology-specific discussions.

1.5%pass rate

Keen problem solving and coding

Developers' mental agility and problem-solving abilities are tested through a coding test involving algorithmic as well as skill-specific problems. A mixture of live evaluation and timed coding tests is used.

1.2%pass rate

Splendid reviews in background check

The live experience of working with developers is verified by reaching out to past clients and/or employers. Inputs on various qualitative factors such as reliability, punctuality, communication and responsiveness are received.

1%pass rate

Consistent exemplary performance

Performance during each engagement is continually assessed. Our developers are expected to maintain Flexiple standards across all engagements with our customers.

Hire App Developers in 4 Simple Steps!

Your technical needs & business objectives are understood by our Solutions Experts.

You save time by reviewing profiles of only the best-suited candidates.

You interact with the candidates to ensure alignment with your product goals.

You, the freelancer & Flexiple work together to meet your engagement objectives.

100+ Startups & Companies Trust Us with Developer Hiring!

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Frequently Asked Questions

  • How To Find The Best App Developers For Hire?

  • App development is the process of creating software applications that run on any type of mobile device. These applications can either be pre-installed or downloaded and installed by the user. A typical mobile application utilizes a network connection to work with remote computing resources. It requires enabling backend services for data access through APIs and testing the application on target devices.

    If you’re looking to hire app developers for your company, this guide is going to help you find the perfect fit. We’ve included everything you need to know about hiring an app developer.

    1. Let's introduce App development to you

    • Origin story: In 1993, IBM launched the first-ever known smartphone which had apps like a contact book, calendar, world clock, and calculator.
    • Widely popular:As of 2019, according to Business of apps, there are about 26.4 million app developers in the world. Out of these, 6 million work on Android development only.
    • Width of knowledge: A App developer is a programmer with knowledge across all layers of an application.
      1. Presentation Layer: The front-end of an application built using programming languages like HTML, CSS, JavaScript, jQuery, and various JavaScript libraries such as Foundation, AngularJS, Backbone, Ember.js, and React JS.
      2. Logic Layer: The backend of an application built using programming languages like Java, PHP, .Net, Ruby, and Python.
      3. Data Layer: A sub-group of the logic layer that deals with how data is created, modified, read, managed, and deleted using databases like SQL Server, MySQL, Oracle, and PostgreSQL.
    • 2. Why is App development widespread?

      • Economical: By using applications, there is less human work and everything is converted into a computerized format, therefore saving time and money.
      • Higher ROI: Apps effectively helps in engaging customers, leading to higher ROI and growth of the business

      3. What are the tools used by App developers?

      These are some of the tools commonly used by app developers:

      1. Titanium SDK

      The Titanium SDK is a software development kit using which users can develop cross-platform applications. It is an open-source tool that allows writing the code in JavaScript and running as native apps across platforms.

      2. Kobiton

      This tool provides options for manual and automated testing of mobile applications. Thanks to it, the testing and delivery of the applications are sped up.

      3. Qt

      Qt is a cross-platform mobile app development tool. It allows for creating the graphical user interface and cross-platform apps. Users can then run these apps on a number of software and hardware platforms including Windows, Linux, Android, and macOS.

      4. TensorFlow

      In case an app developer intends to integrate AI/ML in their application, TensorFlow is the tool for that. This is an open-source, free collection of modules that is useful for making modules using JavaScript and Python.

      5. Apache Cordova

      A mobile app development framework, Apache Cordova is an open-source tool using which app developers can build hybrid apps. Languages like HTML, CSS, and JSS can be used rather than platform-specific tech.

      4. Writing the Job Description to hire app developers

      Below are some key points that we at Flexiple have learned through trial and error - a process of filtering through over 15,000 developers. You can use these in your process to hire app developers.

      • Years of software development experience: Be specific about the technology you’re looking for and the number of years of experience needed. A proxy to years of experience can be the number of production-level apps worked on.
      • Expertise in a specific language: All languages have their peculiarities and nuances. While good App developers can pick up other languages, it’s a plus point to hire a developer who already has expertise in it.
      • Type of products built in the past: Based on the type of product you are trying to build - social network, SAAS product, etc. - you can prioritize certain developers over others.
      • Exposure to specific industries: Developers who have built products in certain industries will already know key aspects of laying the foundation for a great product and will be able to predict possible problems.
      • Experience working remotely: A developer with past remote work experience is an added advantage as they would have first-hand experience of everything - right from how contracts work to streamlined communication, as well as timelines and deliverables.
      • Strong communication: An essential thing to look at when hiring a freelancer is excellent communication skills. Since all the interaction happens online, a freelancer should be able to effectively communicate to ensure a streamlined execution of all work.
      • 5. Interview Questions to hire app developers

        Now that you have made a quality JD, it can still be tricky to evaluate the skills of your applicants when you hire app developers. To help you with that, we have created a pool of questions that a good App developer should be comfortable with.

        It is important to note that the ability to answer these questions doesn't imply that you have a top quality candidate. But it definitely is a big step in that direction.

        To help you navigate through these questions, we’ve categorized the interview questions in 3 parts:

        A. Basic concepts: Includes all basic concepts used across languages. This section will give you an understanding of how strong their programming foundation is.

        B. Advanced concepts: Includes all concepts that someone with higher expertise should know.

        C. DS/Algorithm questions: To test the logical capability of the candidate.

        A. Basic concepts

  • What are the advantages of using REST web services?

    Listed below are a few advantages of using REST web services:

    1. - Rest is a simple, lightweight, and fast protocol
    2. - The learning curve is small as it uses the HTTP protocol
    3. - Since the resources are decoupled the content can be accessed in numerous formats (HTML, Text, JSON, PDF, etc)

  • Why are doctypes used in HTML?

    HTML Doctypes are not elements or tags but rather a document type declaration. This document is used to tell the web browser the HTML version used or about any other markup language that is used on the current page.

    These doctypes must be added before the <html> tags. The following code is used to declare it.

    < !DOCTYPE html >

    B. Advanced concepts

  • Describe sessionStorage, localStorage, and cookie.

    Session Storage - As the name suggests, this data is stored until the session or tab is closed, however, it is not cleared during reloads. This data remains on the client-side and cannot be transferred to the server.

    Local Storage - This data is stored on the client's computer. This data has no expiration, however, it is limited only to string data. Local data can be accessed using Javascript and HTML but cannot be transferred to the server end. Although local storage data does not have an expiration date it can be cleared by the user.

    Cookies - Cookies sent back to the server-side and hence the size must be less than 4KB. The data is sent back when a subsequent XHR request is made. Although they are meant for server-side reading they can be accessed on the client-side as well.

  • What are the various ways to get elements from the DOM?

    These are the common methods used to get an element from the DOM:

    1. getElementById
    2. getElementsByClassName
    3. getElementsByTagName
    4. querySelector
    5. querySelectorAll

    C. Data Structure/ Algorithm

  • 1. Write a Java Program to find whether a string or number is palindrome or not.

    import java.util.Scanner;
    public class Palindrome {
        public static void main (String[] args) {
            String original, reverse = "";
     Scanner in = new Scanner(System.in);
           int length;
            System.out.println("Enter a number or a string");
            original = in.nextLine();
            length = original.length();
            for (int i =length -1; i>;=0; i--) {
                reverse = reverse + original.charAt(i);
            }
            System.out.println("The reverse is: " +reverse);
    
            if(original.equals(reverse))
                System.out.println("The string is a palindrome");
            else
                System.out.println("The stringis not a palindrome");
    
        }
    }
    Output:
    For String- Enter a number or a string
    sam
    The reverse is: mas
    The string is not a palindrome
    
    For Number-Enter a number or a string
    99
    The reverse is: 99
    The number is a palindrome 
  • 2.What will the output of the following code be?

    $x = 2
    $y = 4
    $z = 6
    if($z > $y > $x) {
        echo “true”;
    }else{
        echo “false”;
    }
    The answer is False. It may look like the output can be true because 6 > 4 > 2 is true, but PHP evaluates $z > $y 
    first, which returns a boolean value of 1 or true. This value (true or 1) is compared
    to the next integer in the chain, bool(1) > $z, which will result in NULL and echo “false.”

    Hire app developers - parting thoughts

    That is everything you need to know about hiring a freelance App developer. As discussed, it isn't easy to find a quality freelance App developer but this guide makes the process easier for you. To offload the entire hiring process, reach out to us at Flexiple. We've designed a high-quality, 6-step screening process to find the top 1%, freelance developers. You can find the best freelance App developers here. We've already served over a hundred clients, earning great reviews for the quality of service.

    Lastly, to quickly summarize it for you:

    • Note your project requirements and hire accordingly. Do not go for the lowest or the highest-paid developer.
    • Don’t hire without vetting- consider asking questions right from the basics to advanced to logical questions.
    • Look for companies like Flexiple that help you find the perfect fit.

    That's a wrap on the info you need to hire app developers. Happy hiring! :)

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