This guide covers both, and it\u2019s the hub for every development guide we publish.<\/span><\/p>\n TL;DR:<\/b> Salesforce development means extending the platform through declarative tools (Flow, App Builder) and code (Apex, Lightning Web Components). It runs on a multi-tenant, metadata-driven architecture, which is why governor limits exist and why bulkification isn\u2019t optional. The average US Salesforce developer earns <\/span>$95,814<\/b> (<\/span>PayScale<\/span><\/a>, 2026), and IDC projects the ecosystem will create <\/span>11.6 million jobs<\/b> between 2022 and 2028.<\/span><\/p><\/blockquote>\n Salesforce development<\/a> is the practice of extending the Salesforce platform beyond its standard configuration using declarative tools, custom code, or both. It differs from general software development in one decisive way: you build inside a shared, governed runtime rather than on your own infrastructure.<\/span><\/p>\n It splits into three activities that get lumped together and shouldn\u2019t be.<\/span><\/p>\n The distinction is commercial as much as technical. Configuration is measured in hours; custom development in sprints. We break the boundary down in<\/span> configuration versus customisation<\/span>.<\/span><\/p>\n <\/p>\n A Salesforce developer translates business requirements into platform solutions, writing Apex for logic the declarative tools can\u2019t express, building Lightning Web Components for custom interfaces, integrating external systems through APIs, and maintaining code quality across three annual platform upgrades.<\/span><\/p>\n The day-to-day, honestly:<\/span><\/p>\n The line against the admin role: <\/span>an administrator manages what Salesforce is configured to do; a developer changes what it\u2019s capable of doing.<\/b> In small orgs, one person does both. Full comparison in <\/span>admin vs developer vs architect vs consultant<\/span>.<\/span><\/p>\n Salesforce runs as a multi-tenant platform: your org shares infrastructure with thousands of others, and the platform enforces per-transaction resource limits so no tenant can degrade the rest. This single constraint shapes every design decision you\u2019ll make.<\/span><\/p>\n Three properties, each with direct consequences:<\/span><\/p>\n The platform layer beneath the CRM apps is covered separately in <\/span>what the Salesforce Lightning Platform is,<\/span> including the Platform licence, which costs meaningfully less than full CRM for custom apps that never touch Sales or Service objects.<\/span><\/p>\n Start declarative. Salesforce\u2019s guidance is clicks before code, and the market has moved decisively that way; developer demand declined 12% in 2025 as low-code absorbed routine Apex work, while Technical Architect demand rose 27% against only 4% supply growth (<\/span>SyncGTM<\/span><\/a>, 2026).<\/span><\/p>\n That shift is the practical answer: routine automation is now declarative, and what\u2019s left for code is the hard part.<\/span><\/p>\n The honest test: <\/span>who maintains this in two years?<\/span><\/i> If the answer is an admin, build it declaratively even when code would be marginally faster today.<\/span><\/p>\nWhat Is Salesforce Development?<\/b><\/h2>\n
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What Does a Salesforce Developer Actually Do?<\/b><\/h2>\n
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How Does the Salesforce Platform Architecture Work?<\/b><\/h2>\n
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Declarative or Code: How Do You Decide?<\/b><\/h2>\n
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