Ruby Engineer
Talent Definition

Talent proclamation is standard. Our one-of-a-kind
strategy identifies the exceptional 1.6%.

Technical Skills:
The Core of Ruby Developer Excellence

We uphold stringent criteria for our Ruby developers by evaluating their
expertise across 20 essential technical areas within 4 distinct categories.
This comprehensive assessment ensures that our team members have
the vital skills to address our unique technical challenges and deliver
exceptional results.

  1. Category #1:

    Core Language
    & Frameworks

    The Core Language & Frameworks category assess essential competencies for senior Ruby developers, including best practices, Ruby expertise, automated testing, and framework familiarity, ensuring high-quality code development.
    • Engineers with this competency:

    • Good Practices
      & Patterns

      • Consciously apply established practices and patterns
      • Produce code that is easy to maintain and develop for future enhancements
    • Proficiency
      in Ruby

      • Possess a solid knowledge of Ruby (e.g., can perform operations on Array, Hash)
      • Comprehend code that utilizes metaprogramming techniques
      • Develop readable and transparent metaprogramming code
      • Explain the inner workings of metaprogramming within the Ruby interpreter and the implications of its usage
    • Writing Automated

      • Are skilled in creating various types of automated tests (unit, integration, functional)
      • Understand and explain the roles of different test types within the test pyramid
      • Collaborate with other programmers and testers to make and justify decisions on the scope of test automation in different contexts (business, technical, human)
    • Frameworks Knowledge

      • Possess knowledge of popular frameworks (e.g., RoR, Sinatra), their features, and optimal applications/use cases
  2. Category #2:

    Development Process & Tools

    In this realm, we stress the importance of aligning solutions with business needs, mastering development tools, and understanding the overall software development process, ensuring seamless and efficient project execution.
    • Engineers with this competency:

    • Solutions
      Aligned with Needs

      • Propose solutions that address current business and technical needs
      • Demonstrate flexibility by not restricting themselves to a single solution, architecture, or tool (maintaining a healthy detachment from individual approaches or tools)
      • Identify the pros and cons of various solutions/approaches within different contexts (business, technical, human)
      • Understand and explain the impact and significance of non-functional requirements in choosing the most suitable solution
    • OS & Network Understanding

      • Understand fundamental concepts related to operating systems and network communication, and explain their impact on the development of backend solutions
      • Are proficient in using containerization solutions, such as Docker
    • Git Proficiency

      • Demonstrate proficiency in using the Git version control system
      • Are familiar with various Git workflows and can recommend one based on different contexts (business, technical, human). Can implement the chosen workflow in the project
      • Understand the influence of the selected workflow on the CI/CD process
    • Software Development Process

      • Understand the software development process using agile methodologies
      • Are capable of identifying and reporting issues related to the currently implemented process or methodology
    • CI/CD Implementation

      • Are able to optimally configure the CI/CD pipeline in a manner that aligns with the chosen solution architecture, Git workflow, and deployment method on cloud computing platforms (or other server resources)
  3. Category #3:

    System Architecture & Management

    In this domain, we concentrate on problem-solving capabilities, cloud computing expertise, database knowledge, infrastructure management, and message broker familiarity, all crucial for constructing and maintaining robust systems.
    • Engineers with this competency:

    • Solving Technical Problems

      • Effectively diagnose technical problems within a solution or project
      • Propose appropriate solutions for the identified issues
    • Cloud Computing Skills

      • Propose an approach for implementing a Ruby backend solution on a chosen cloud computing platform
      • Explain how the selection of cloud computing and its utilization influences code creation and future development of the solution or project
      • Configure Ruby-based solutions for a specific cloud computing platform
    • Database Solutions Knowledge

      • Make informed decisions when selecting a database solution, justifying their choice while highlighting potential risks associated with the selected option, especially when choosing between relational and non-relational databases
    • Infrastructure Management

      • Understand best practices related to deployment, monitoring, and debugging of a solution deployed in a production environment
      • Can implement and manage an application in production at a basic level
    • Message Broker Knowledge

      • Understand the purpose of message broker solutions (e.g., RabbitMQ, Kafka)
      • Can determine whether the use of a message broker is warranted in the developed solution or current project
    • Security Requirements Implementation

      • Are knowledgeable about and able to apply strong security practices
      • Can effectively implement security requirements in practice
      • Mitigate both software-related and social engineering threats (e.g., spam, suspicious emails, and questionable attachments)
  4. Category #4:

    & Analysis

    This area encompasses the ability to comprehend business requirements, API expertise, researching unknown solutions, creating visual documentation, and assessing recruitment candidates, essential for delivering customized and effective outcomes.
    • Engineers with this competency:

    • Business Requirements Comprehension

      • Can pinpoint areas within business requirements that need further clarification
      • Are adept at translating business requirements into technical requirements, proposing suitable solutions and planning their implementation
    • API Expertise

      • Comprehend the purpose, functionality, and usage of REST APIs
      • Can explain the differences between REST APIs and GraphQL APIs, and identify the factors that determine which type of API is more suitable in a specific situation
    • Researching Unknown Solutions

      • Are capable of investigating unknown or previously unused solutions or tools
      • Can present the advantages, disadvantages, or risks associated with the use of the analyzed solution, and recommend a decision regarding its implementation
    • Visual Documentation Skills

      • Are capable of creating diagrams that visually represent the developed solution, including system diagrams, process diagrams, flowcharts, and more
    • Recruitment Candidate Assessment

      • Can conduct interviews with candidates to verify their technical competencies
      • Can present and justify their recommendations regarding the employment of a particular candidate

Exceptional Ruby Expertise:
The Technical Skills Elevating
Developers Beyond the Rest

Our Ruby developers undergo a meticulous evaluation based on 44 distinct criteria, ensuring they possess a comprehensive range of technical skills to tackle complex projects.

This rigorous assessment leads to exceptional performance and remarkable outcomes from our team.

If you’re seeking a highly skilled Ruby development team with extensive technical proficiencies, don’t hesitate to contact us.


Soft Skills:
The Hallmark of Genuine Senior Engineers

To ensure our Ruby developers meet our senior-level expectations,
we assess their soft skills across 10 key areas within 2 distinct categories.
Below, you’ll find a detailed overview of the competencies we evaluate
and the methods we employ for verification.

  1. Category #1

    Interpersonal Skills

    This facet highlights essential interpersonal skills such as effective communication, helpfulness, mentoring, transparency, flexibility, and responsibility, which contribute to fostering a collaborative and productive work environment.
    • Engineers with this competency:

    • Effective Communication

      • Communicate observed issues and proposed changes in a balanced, neutral, and prejudice-free manner (avoiding judgment, self-aggrandizement, or mockery)
      • Express their own needs and challenges within the project (especially encountered difficulties) while maintaining a non-demanding attitude
      • Engage in discussions in a way that fosters conversation
      • Guide discussions towards decision-making or defining a plan of action
      • Actively listen to others in conversations or discussions and navigate the conversation towards a better understanding of the other party’s needs
      • Explain and discuss technical matters with non-technical individuals
    • Helpfulness
      and Mentoring

      • Proactively support other team members in completing their tasks (including being open to pair programming)
      • Mentor less experienced team members by identifying areas for improvement/development, sharing knowledge and best practices, and reviewing others’ work
      • Provide neutral feedback that includes clear instructions, encourages changes, and promotes further development
      • Effectively motivate team members and foster a positive working atmosphere
    • Transparency

      • Are willing to admit mistakes and not conceal their consequences
      • Can acknowledge ignorance or inexperience and display an attitude focused on acquiring knowledge in areas where it is lacking
      • Do not hide their intentions and objectives (if they impact their work within the team or project)
      • Can openly communicate factors that influence their effectiveness and motivation to work
    • Flexibility

      • Can adapt their work style, methodology, and communication to the current team’s needs without compromising effectiveness
      • Adjust the scope of tasks performed according to the team’s requirements (while being able to communicate if the scope or frequency of changes negatively affects their effectiveness and motivation to work – see Transparency)
      • Remain open to the ideas of others (i.e., listen to suggestions, commit to implementing them)
      • Understand the broader context of business needs, technical capabilities, and human potential, and how they impact the team’s functioning
    • Responsibility

      • Complete tasks assigned to them
      • Do not evade responsibility for their actions and the consequences that follow
      • Feel accountable for the created solution and openly communicate the risks related to decisions or actions taken on the developed solution (e.g., its quality, security, maintainability)
  2. Category #2

    Self-management Skills

    In this dimension, we emphasize the importance of English communication, insight, commitment, proactivity, efficiency, and work organization, enabling our developers to manage their tasks independently and professionally.
    • Engineers with this competency:

    • English Communication Skills

      • Possess sufficient fluency in English to effectively communicate their needs, observed issues, and ideas
      • Can engage in English conversations on non-technical topics
    • Insight

      • Can thoroughly analyze a technical problem and accurately diagnose its cause
      • Can comprehensively analyze a selected solution, approach, or tool and present the method, opportunities, and risks associated with its implementation
    • Commitment
      and Proactivity

      • Proactively identify the need to change a solution or its implementation approach
      • Openly signal observed issues and risks in the team or project
    • Efficiency

      • Effectively execute assigned tasks (either independently or by involving other team members)
      • Openly and promptly communicate threats (risks), dependencies, and problems that may hinder their ability to carry out tasks efficiently
    • Work Organization

      • Complete assigned tasks or duties promptly (including openly communicating the inability to meet agreed deadlines), especially when the work of others depends on them
      • Can prioritize tasks, taking into account the needs of other individuals or the entire team
      • Communicate with other team members during established working hours
      • Are well-prepared for meetings or discussions

Beyond Tech Expertise:
Soft Skills Elevating Our
Ruby Devs’ Human Touch

Our Senior Ruby engineers are assessed on 33 key soft skills, enhancing the human elements that distinguish them in engineering. These skills complement their technical expertise, enabling them to surpass AI and computers.

By cultivating well-rounded professionals, we ensure our team delivers excellence in both technical and interpersonal dimensions.

If you’re seeking a Ruby development team with a unique blend of human and technical prowess, contact us today.


Ability to Use AI Tools:
Boosting Human-AI Teamwork

Merging human expertise and AI, our talented engineers unlock
the power of AI-enhanced collaboration, mastering complex
challenges with unrivaled efficiency and ingenuity.

  1. AI Tooling

    These AI tools, combined with the expertise of Code & Pepper’s elite 1.6% engineers, enable our Human-AI centaur teams to deliver high-quality, innovative, and reliable FinTech and HealthTech solutions by improving various aspects of the software development process.
    • 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

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

AI-Driven Efficiency:
Harnessing AI Tools with
Expert Ruby Developers

Our exceptional Ruby developers combine technical prowess and human expertise to select and utilize the most suitable AI tools, optimizing software development efficiency.

With their outstanding talent and skills, they effectively navigate the AI landscape, ensuring secure and accelerated development processes.

If you’re seeking a cutting-edge Ruby development team with the mastery to leverage AI tools for enhanced performance, contact us today.


Revealing the Outstanding Outcomes: The Elite
1.6% Emerge from Our Selection Process


Throughout a year, we assessed a remarkable 3083 candidates for inclusion on our team.

1 in every 60

Merely 1 out of every 60 candidates prevailed in our stringent technical and soft skills assessment, ultimately joining our outstanding team.

true talents

This signifies that a mere 1.6% of candidates genuinely embody exceptional talent, and as esteemed members of the Code & Pepper team, they stand ready to drive your project to success.

By building dedicated teams of Ruby Engineers, Code & Pepper have helped us hire highly skilled developers into our business.

Building with Ruby?
Let’s Amplify Your Project Together!

Olga Pogorzelska
New Business