Senior Developer

Senior Developer role: code architecture, complex problem solving, and mentoring

Category: Team
Tags: salesforce roles senior-developer architecture

Author: callinj
Name: Joe Callin
Title: Sr. Salesforce Developer
Email: joe@jcallin.dev

Table of Contents

  1. Overview
  2. Quick Facts
  3. Core Responsibilities
  4. Required Skills & Experience
  5. Typical Deliverables
  6. Decision Authority
  7. Code Involvement
  8. Mentorship & Collaboration
  9. Success Metrics
  10. Career Progression
  11. Related Roles
  12. See Also

Overview

Senior Developers provide technical depth and expertise to the team. They are experts in at least 2 of 3 key areas: Lightning Web Components (LWC), Apex, and declarative automation (Flows, Process Builder, Workflow Rules). Common combinations include full-stack code (LWC + Apex), LWC + declarative, Apex + declarative, or all three. They drive code architecture, design complex solutions, and mentor other developers. They have deep technical knowledge and can solve complex problems independently. They provide technical validation and clarification to Technical Leads, but the Technical Lead has final authority on code decisions.

Quick Facts

  • Code Involvement: 70-80% (Architecture + implementation)
  • Typical Experience: 4-7 years
  • Decision Authority: Technical approach and architecture (with Tech Lead final approval)
  • Focus Area: Code architecture, mentoring, complex problem solving

Core Responsibilities

  • Design and implement complex features and solutions
  • Drive code architecture and establish patterns
  • Provide technical validation and clarification on stories (for Tech Lead)
  • Answer technical questions from developers
  • Mentor Junior and Mid-Level Developers
  • Review code and provide constructive feedback
  • Identify and address technical debt
  • Research and evaluate new technologies and approaches
  • Contribute to coding standards and best practices
  • Participate in architecture discussions (provide input to Architect/Tech Lead)
  • Write comprehensive documentation and technical specifications

Required Skills & Experience

Technical Skills

Expert-level skills in at least 2 of 3 areas:

  • Lightning Web Components (LWC): Expert-level JavaScript, HTML, CSS, and component architecture
  • Apex: Expert-level object-oriented programming, design patterns, and Salesforce platform knowledge
  • Declarative Automation: Expert-level Flows, Process Builder, Workflow Rules, and automation patterns

Common combinations:

  • Full-stack code: LWC + Apex
  • Frontend + Automation: LWC + Declarative
  • Backend + Automation: Apex + Declarative
  • All three (ideal but not required)

Additional required skills:

  • Deep understanding of Salesforce architecture and limits
  • Strong understanding of design patterns and best practices
  • Experience with complex integrations and data migrations
  • Strong debugging and problem-solving skills
  • Understanding of performance optimization
  • Experience with Salesforce security best practices

Experience

  • 4-7 years of Salesforce development experience
  • Experience with multiple complex Salesforce projects
  • Experience mentoring other developers
  • Experience with architecture and design decisions

Knowledge Areas

  • Advanced Salesforce development patterns in areas of expertise (Apex, LWC, and/or declarative)
  • Declarative automation patterns and best practices (if declarative is an area of expertise)
  • System architecture and design principles
  • Performance optimization techniques
  • Security best practices (CRUD/FLS, sharing, etc.)
  • Integration patterns and best practices
  • Testing strategies and methodologies
  • Understanding of when to use declarative vs code-based solutions

Typical Deliverables

  • Complex feature implementations and solutions in areas of expertise (Apex, LWC, and/or declarative)
  • Architecture designs and technical specifications
  • Code reviews and mentoring
  • Technical documentation and best practices
  • Research and evaluation of new approaches
  • Technical debt reduction initiatives
  • Guidance on when to use declarative vs code-based solutions

Decision Authority

  • Technical approach and architecture (with Tech Lead final approval)
  • Code patterns and implementation strategies (input to Tech Lead)
  • Technical solutions for complex problems (with Tech Lead approval)
  • Mentoring approach and developer guidance
  • Technical research and evaluation

Important: Provides technical validation/clarification to Tech Lead, but Tech Lead has final authority on code decisions.

Code Involvement

70-80% - Significant code involvement, but also spends time on architecture, mentoring, and code review. Balance of implementation and technical leadership.

Mentorship & Collaboration

  • Mentors Junior and Mid-Level Developers
  • Provides technical validation and clarification to Tech Lead
  • Answers questions from all developers
  • Collaborates with Tech Lead on architecture decisions
  • Provides input to Architect on system design
  • Participates in technical discussions and decisions

Success Metrics

Qualitative

  • Code architecture quality and maintainability
  • Mentorship effectiveness and developer growth
  • Complex problem resolution ability
  • Technical leadership and influence

Quantitative

  • Code quality metrics (complexity, maintainability)
  • Developer growth metrics (mentees advancing)
  • Complex feature delivery success rate
  • Technical debt reduction
  • Code review participation and quality

Career Progression

Path From

  • Mid-Level Developer (typically 2-3 years, 4-7 years total)
  • Developer with strong technical skills and leadership interest

Path To

  • Staff/Principal Developer (if interested in advanced architecture and standards - IC track)
  • Lead Developer (if interested in first step into leadership - stream/squad lead)
  • Technical Lead (if interested in team coordination and code ownership - Management track)
  • Technical Architect / Solution Architect (if interested in strategic/system or solution design focus)
  • Senior Developer (specialized/expert track)

See Also