React Native Engineer
Talent Definition

Technical Skills: Decoding
React Native Developer Expertise

1. Category #1:

   Technical Proficiency

   • Engineers with this competency:

   • Frameworks & Tools Proficiency

     • Build mobile apps using React Native, understanding its features and optimal use cases.
     • Keep up with emerging solutions in the React Native ecosystem.
     • Select suitable state management libraries for specific business needs.
     • Master various navigation types (such as Top Bar, Bottom Bar, Drawer, React Navigation, and Expo Router), deep linking, and integration with other tools e.g., Analytics).
     • Implement native animations using the Animated API and associated libraries.
     • Implement push notifications using the Push Notification API and relevant tools.
     • Enable offline support and store data in unencrypted and encrypted local databases using tools like AsyncStorage, NetInfo API, and Keychain.

   • TypeScript Expertise

     • Demonstrate a robust understanding of TypeScript, including advanced typing.
     • Can elucidate the relationship between TypeScript and JavaScript.
     • Can efficiently use existing types and create new advanced types as needed for the solution.

   • API Mastery

     • Understand the purpose, function, and usage of REST APIs.
     • Can explain the differences between REST APIs and GraphQL APIs and what factors determine which type of API is a better solution in a given case.

   • Git Proficiency

     • Demonstrate proficiency in using the Git version control system.
     • Understand different Git workflows and can suggest the most suitable one depending on the context, including business, technical, and human factors.
     • Can implement the selected workflow in the project.

   • Infrastructure Management

     • Can identify and apply best practices for deployment, monitoring, debugging, and scalability of solutions implemented in production environments.
     • Can manage dependency updates in projects, understand versioning, and monitor vulnerabilities in utilized libraries for security purposes.
     • Can implement and manage applications in production at a basic level.
2. Category #2:

   Performance
   & Quality

   • Engineers with this competency:

   • Performance Optimization

     • Address front-end performance issues such as network communication, data loading time, resource management, user interaction, layout, and animations.
     • Consider conversion rates, taking into account the responsiveness of the application on web and mobile platforms.
     • Are knowledgeable about and utilize tools that improve front-end performance, such as Lighthouse and Google Chrome Tools.

   • High-Quality
     Code

     • Write reliable, maintainable, reusable, cross-platform code that is thoroughly tested and covers multiple test cases.
     • Understand and utilize metrics that demonstrate the quality of written code.

   • Diverse Automated Tests

     • Can write automated tests, including unit, integration, and end-to-end tests.
     • Understand the role of different test types within the entire test pyramid.
     • Can make and justify decisions with other developers and testers regarding the scope of test automation in various contexts, including business, technical, and human factors.

   • Implementing Security Requirements

     • Understand and can implement good security practices.
     • Can practically implement security requirements.
     • Know methods of data encryption in web/mobile applications and the necessary tools.
     • Have experience implementing secure authentication methods.
     • Understand how to securely store sensitive data in the application, such as user login details and payment information.
3. Category #3:

   Problem
   Solving

   • Engineers with this competency:

   • Technical
     Problem Solving

     • Can diagnose technical issues in projects and propose solutions.

   • OS & Network Understanding

     • Understand fundamental concepts related to operating systems and network communication, and consider their impact when developing mobile applications.

   • Unfamiliar Solution Analysis

     • Can investigate unfamiliar or previously unused solutions or tools.
     • Can present the disadvantages, advantages, or risks associated with the analyzed solution and recommend a decision regarding its implementation.

   • Implementing CI/CD Solutions

     • Can configure the CI/CD pipeline optimally and compatibly with the adopted solution architecture, Git workflow, and the method of implementation on the computing cloud (or other server resources).
     • Have knowledge of tools and services that can help reduce application maintenance costs, such as alternative hosting solutions or open-source libraries.
4. Category #4:

   Business
   Acumen

   • Engineers with this competency:

   • Tailored Solution Development

     • Propose solutions that address current business and technical needs.
     • Avoid limiting themselves to one type of solution/architecture/tool, maintain a balanced perspective on individual approaches or tools, and know when to use pre-built solutions or create their own.
     • Identify the pros and cons of specific solutions/approaches in various contexts, including business, technical, and human factors.
     • Explain the impact and role of non-functional requirements in selecting the appropriate solution.

   • Best Practices
     & Patterns

     • Consciously employ established practices and patterns.
     • Consider future maintenance and development ease when writing code.

   • Business Requirement Insight

     • Can identify areas of business requirements that need refinement.
     • Can translate business requirements into technical requirements and propose appropriate solutions and implementation plans.

   • Software Process Comprehension

     • Understand the software development process using agile methodologies.
     • Can report issues related to the currently implemented process or methodology.

Soft Skills Define Genuine
Senior React Native Engineers

1. Category #1:

   Collaboration Skills

   We place great emphasis on soft skills, including efficient communication, outstanding English proficiency, a supportive and coaching mindset, candidness, and receptiveness to feedback, as these are essential qualities in our team members.

   • The engineer with these competencies:

   • Communication

     • Can communicate noticed problems and proposals for changes in a balanced, neutral, and unbiased way (does not judge, does not elevate themselves, does not ridicule)
     • Can communicate their own needs and problems in the project (especially difficulties encountered), while maintaining a non-entitlement attitude
     • Can participate in discussions in a way that encourages conversation. Can guide the discussion towards making decisions or defining a course of action
     • Can discuss and explain technical issues to non-technical people Category: Soft Skills/Communication

   • English
     proficiency

     • Can use the English language to a sufficient extent to effectively communicate their needs, noticed problems, and ideas
     • Can converse in English on non-technical topics

   • Helpfulness
     & mentoring

     • Is open to supporting other team members in carrying out their tasks (including being open to pair programming)
     • Can mentor less experienced team members (identify areas that need improvement/development, provide knowledge and best practices, check other people’s work and give constructive feedback)

   • Transparency

     • Can admit to a mistake and does not hide its consequences
     • Can admit to not knowing something or lacking experience
     • Does not hide their intentions and goals (if they affect their work in the team/project)
     • Can openly communicate the factors that affect their efficiency and motivation to work

   • Open
     to feedback

     • Understands the broader context of business needs, technical possibilities, and human potential, and their impact on the team’s work style
2. Category #2:

   Work Ethic and Responsibility

   We give importance to attributes like attention to detail, accountability, dedication, efficiency, strong work organization, and adaptability, as these qualities enable our team members to consistently provide top-notch work in a timely manner and adjust to evolving requirements.

   • The engineer with these competencies:

   • Thoroughness

     • Can thoroughly analyze a technical problem and correctly diagnose its cause
     • Can thoroughly analyze a selected solution, approach, or tool and present the method and chances and risks associated with its implementation

   • Responsibility

     • Feels responsible for the tasks entrusted to them and does not evade responsibility for their actions and their consequences
     • Feels responsible for the solution being created and openly communicates the risks associated with the decisions/actions taken on the solution being created (e.g., its quality, safety, ease of maintenance)

   • Engagement
     & proactivity

     • Can proactively report the need for changes in the solution or the way it is being implemented
     • Openly signals problems and risks in the team/project

   • Effectiveness

     • Can effectively carry out the tasks entrusted to them (by completing them independently or engaging other team members)
     • Openly and without unnecessary delay communicates threats (risks), dependencies, and problems that may prevent them from effectively performing their tasks

   • Good work
     organization

     • Completes assigned tasks and duties within the agreed-upon timeframe, and communicates openly if unable to meet deadlines, especially when other team members’ work depends on it.
     • Can prioritize their tasks while considering the needs of other individuals or the entire team.
     • Respects the time and work hours of other team members when involving them in tasks or projects.

   • Flexibility

     • Can adjust their work style and communication method to the current team’s needs
     • Can adjust the scope of tasks performed to the team’s needs (while being able to communicate if the scope or frequency of changes has a negative impact on their efficiency and motivation to work)

Embracing AI Tools: Boosting
React Native Developers’ Capabilities

1. AI Tooling

   Blending AI tools with the expertise of Code & Pepper’s elite 1.6% engineers, our Human-AI hybrid teams deliver exceptional, innovative, and reliable FinTech and HealthTech solutions, optimizing various aspects of the software development journey.

   • The engineer with AI tooling competencies:

   • Code completion and suggestion

     • Knows tools that use AI to analyse code and suggest code snippets, functions, and variables based on the context in which the user is coding (examples include GitHub Copilot and TabNine).

   • Code analysis
     and review

     • Knows tools that use AI to analyse code and provide feedback on code quality, security, and performance (examples include CodeGuru, CodeClimate, and Snyk).

   • Testing and debugging

     • Knows tools that use AI to help developers create tests, find bugs, and debug code (examples include: Applitools, Functionize, and Diffblue Cover).

   • Enhanced
     Security

     • Knows AI-driven security tools that use machine learning to monitor software for potential vulnerabilities and threats (examples include Darktrace and Snyk).