Sales Development Representative (SDR): Complete Job Description Guide

After reviewing thousands of SDR resumes, the single clearest dividing line between candidates who land interviews and those who don't isn't charisma or a business degree — it's whether they can demonstrate a disciplined, metrics-driven approach to outbound prospecting, backed by fluency in CRM tools and sales engagement platforms.

Key Takeaways

• SDRs are the engine of the B2B sales pipeline, responsible for identifying, contacting, and qualifying prospective buyers before handing them to Account Executives to close [6].
• The role is metrics-intensive: daily activity targets for calls, emails, and LinkedIn touches define success more than any other factor [4].
• Most employers require a bachelor's degree, but proven sales aptitude and CRM proficiency (especially Salesforce and HubSpot) can outweigh formal education [7].
• SDR is one of the most common entry points into a tech sales career, with clear promotion paths to Account Executive, Sales Manager, and revenue leadership roles [5].
• AI-powered prospecting tools are reshaping daily workflows, making data literacy and adaptability increasingly critical skills [3].

What Are the Typical Responsibilities of a Sales Development Representative (SDR)?

The SDR role sits at the top of the sales funnel. Your job is not to close deals — it's to fill the pipeline with qualified opportunities so Account Executives can do theirs. That distinction matters, because it shapes every task you perform [6].

Here are the core responsibilities you'll find across real SDR job postings:

Outbound Prospecting

You spend a significant portion of your day reaching out to potential buyers who haven't expressed interest yet. This means cold calling, cold emailing, and sending personalized LinkedIn messages to target accounts. Volume matters — most SDR roles require 50-80+ outbound activities per day — but so does relevance [4].

Lead Qualification

Not every prospect is worth an Account Executive's time. SDRs use qualification frameworks like BANT (Budget, Authority, Need, Timeline) or MEDDIC to assess whether a lead fits the company's ideal customer profile. You ask pointed discovery questions and determine if there's a genuine business problem your product can solve [6].

CRM Management and Data Hygiene

Every interaction gets logged. SDRs maintain meticulous records in CRM platforms — Salesforce, HubSpot, or Salesloft — tracking call outcomes, email responses, meeting notes, and lead status changes. Clean data isn't optional; it's how your team forecasts revenue [3].

Account Research and Targeting

Before you pick up the phone, you research. SDRs use tools like LinkedIn Sales Navigator, ZoomInfo, and 6sense to identify decision-makers within target accounts, understand their company's pain points, and craft personalized outreach that references specific business challenges [5].

Meeting Scheduling and Handoff

The primary deliverable for most SDRs is a "Sales Qualified Meeting" (SQM) or "Sales Qualified Lead" (SQL). You book discovery calls or demos between qualified prospects and Account Executives, then provide a thorough handoff that includes context on the prospect's needs, timeline, and objections [4].

Inbound Lead Response

Many SDRs also handle inbound leads — people who've downloaded a whitepaper, attended a webinar, or requested a demo. Speed-to-lead matters here. Research consistently shows that responding within five minutes dramatically increases conversion rates [5].

Sequence and Cadence Execution

SDRs build and execute multi-touch outreach sequences that combine emails, calls, LinkedIn messages, and sometimes direct mail over a defined period. You A/B test subject lines, refine messaging, and optimize cadences based on reply and booking rates [4].

Pipeline Reporting

You report weekly (sometimes daily) on activity metrics and pipeline contribution. SDRs track KPIs including calls made, emails sent, response rates, meetings booked, and SQL-to-opportunity conversion rates [6].

Collaboration with Marketing

SDRs provide frontline feedback to marketing teams about messaging effectiveness, lead quality, and what prospects actually care about. This feedback loop directly influences campaign strategy and content creation [5].

Competitive Intelligence Gathering

During conversations with prospects, SDRs pick up intelligence about competitors — who else is being evaluated, what features matter, and where alternatives fall short. This information gets documented and shared with product and sales leadership [6].

What Qualifications Do Employers Require for Sales Development Representative (SDR)s?

SDR qualifications vary by company size and industry, but clear patterns emerge across job postings on major platforms [4] [5].

Required Qualifications

Education: Most employers list a bachelor's degree as required, typically in business, communications, marketing, or a related field. That said, a growing number of tech companies — particularly startups — have dropped the degree requirement in favor of demonstrated sales aptitude or completion of a sales bootcamp [7].

Experience: Entry-level SDR roles often require 0-1 years of professional experience. Mid-level positions (sometimes titled "Senior SDR" or "SDR II") typically ask for 1-3 years of outbound sales or business development experience [4].

Technical Skills: Proficiency with at least one major CRM platform (Salesforce is the most requested, followed by HubSpot) appears in the vast majority of postings. Familiarity with sales engagement tools like Outreach, Salesloft, or Apollo is increasingly listed as required rather than preferred [3].

Communication Skills: Strong written and verbal communication is non-negotiable. SDRs write dozens of emails daily and conduct phone conversations with senior decision-makers, so the ability to communicate value concisely and professionally is essential [3].

Preferred Qualifications

Industry Experience: Employers selling into specific verticals (healthcare, fintech, cybersecurity) often prefer candidates who understand that industry's terminology and buying cycles [5].

Certifications: While no single certification dominates the SDR space, credentials like the HubSpot Inbound Sales Certification, Salesforce Administrator Certification, or completion of programs like Aspireship or SV Academy signal commitment and foundational knowledge [11].

Multilingual Ability: For companies with international territories, fluency in a second language (Spanish, French, German, or Portuguese are most commonly requested) is a meaningful differentiator [4].

Track Record of Quota Attainment: Nothing speaks louder than numbers. Candidates who can point to specific metrics — "Booked 45 meetings in Q3, 120% of quota" — consistently outperform those with vague descriptions of their responsibilities [5].

What Does a Day in the Life of a Sales Development Representative (SDR) Look Like?

An SDR's day is structured, fast-paced, and repetition-heavy — but the best reps find ways to make each interaction feel anything but routine.

Morning: Research and Preparation (8:00–9:00 AM)

The day typically starts with reviewing overnight inbound leads and prioritizing follow-ups. You check your CRM dashboard for leads that have engaged with recent marketing content, scan LinkedIn for trigger events (job changes, funding announcements, company expansions), and update your call list for the day [4].

Mid-Morning: Power Calling Block (9:00–11:30 AM)

This is prime calling time. Most SDRs block two to three hours for uninterrupted outbound calls, aiming to connect with 30-50 prospects. Between dials, you leave voicemails, send follow-up emails, and log every touchpoint in your CRM. The energy during this block is intense — rejection is constant, but one strong conversation can set up your week [6].

Midday: Team Standup and Lunch (11:30 AM–1:00 PM)

Many SDR teams hold a daily or weekly standup where reps share wins, discuss objections they're hearing, and workshop messaging. These meetings often include the SDR manager and sometimes an Account Executive who provides feedback on lead quality. Lunch follows — and experienced SDRs protect this break, because afternoon energy depends on it [5].

Afternoon: Email Sequences and LinkedIn Outreach (1:00–3:30 PM)

The afternoon shifts to written outreach. You personalize email sequences, engage with prospects on LinkedIn (commenting on their posts, sending connection requests with tailored notes), and follow up with prospects who opened but didn't reply to earlier messages. This is also when you handle inbound demo requests, aiming for response times under five minutes [4].

Late Afternoon: Admin, Reporting, and Prep (3:30–5:00 PM)

The final stretch involves updating CRM records, logging meeting outcomes, and preparing your pipeline report. You review tomorrow's target list, research new accounts, and confirm any scheduled handoff meetings with Account Executives. Some reps use this time to practice cold call scripts or review call recordings for self-coaching [6].

What Is the Work Environment for Sales Development Representative (SDR)s?

SDR roles exist predominantly in B2B technology, SaaS, and professional services companies, though the function has expanded into financial services, healthcare tech, and manufacturing [4].

Remote, Hybrid, and In-Office

The SDR role has embraced remote work more than most sales positions. Job postings on LinkedIn and Indeed show a roughly even split between fully remote, hybrid, and in-office arrangements, though many sales leaders prefer in-office or hybrid setups for SDRs specifically because of the coaching and collaborative energy that comes from sitting alongside other reps [5].

Schedule and Hours

Standard hours are typical (roughly 8 AM to 5 PM), though SDRs covering West Coast territories from East Coast offices may shift later. Overtime is uncommon, but end-of-month or end-of-quarter pushes can extend hours as reps work to hit booking targets [4].

Team Structure

SDRs typically report to an SDR Manager or Director of Sales Development and work closely with Account Executives, marketing teams, and revenue operations. Team sizes range from 3-5 reps at startups to 50+ at enterprise SaaS companies. The environment is competitive but collaborative — leaderboards, SPIFs (Sales Performance Incentive Funds), and team contests are standard motivational tools [5].

Tools of the Trade

Your workspace revolves around a laptop, a headset, and a dual-monitor setup. The core tech stack includes a CRM (Salesforce or HubSpot), a sales engagement platform (Outreach or Salesloft), a prospecting database (ZoomInfo or Apollo), and a communication tool (Slack or Microsoft Teams) [3].

How Is the Sales Development Representative (SDR) Role Evolving?

The SDR function is undergoing its most significant transformation since the role was popularized by Aaron Ross's "Predictable Revenue" model in the early 2010s.

AI and Automation

AI-powered tools now handle tasks that consumed hours of an SDR's day — writing first-draft emails, scoring leads based on intent signals, and even conducting initial chatbot-based qualification. This doesn't eliminate the SDR role, but it shifts the value proposition. Reps who can leverage AI to increase personalization at scale, rather than just increase volume, are outperforming peers who rely on brute-force activity [3].

Signal-Based Selling

The rise of intent data platforms (Bombora, 6sense, Demandbase) means SDRs increasingly prioritize accounts showing active buying signals — visiting pricing pages, researching competitors, or engaging with relevant content — rather than working static lists alphabetically [5].

Multi-Threading and Account-Based Approaches

Employers increasingly expect SDRs to engage multiple stakeholders within a single account simultaneously, not just one contact. This account-based development approach requires stronger research skills and more sophisticated outreach strategies [4].

Expanded Skill Requirements

Data literacy, basic understanding of marketing automation, and comfort with video prospecting (using tools like Vidyard or Loom) are becoming table stakes. The SDR of 2025 looks more like a "mini-marketer" than a pure cold caller [3].

Key Takeaways

The Sales Development Representative role is the frontline of B2B revenue generation — a high-activity, metrics-driven position that rewards discipline, resilience, and genuine curiosity about prospects' business challenges [6]. Employers look for candidates who combine CRM proficiency with strong communication skills and a coachable mindset [4]. The role is evolving rapidly as AI tools and intent data reshape daily workflows, making adaptability and data literacy essential for long-term success [3].

For most professionals, the SDR position serves as a launchpad into lucrative sales careers, with top performers advancing to Account Executive roles within 12-18 months [5]. If you're building or updating your resume for an SDR role, focus on quantifiable achievements — meetings booked, quota attainment percentages, and pipeline generated — rather than generic descriptions of duties.

Ready to build a resume that highlights your prospecting skills and sales metrics? Resume Geni's AI-powered resume builder can help you craft a targeted SDR resume that speaks directly to what hiring managers are looking for [12].

Frequently Asked Questions

What does a Sales Development Representative (SDR) do?

An SDR identifies and qualifies potential customers through outbound prospecting (cold calls, emails, LinkedIn outreach) and inbound lead follow-up. The primary goal is to book qualified meetings for Account Executives, not to close deals directly [6].

How much do SDRs earn?

SDR compensation typically includes a base salary plus variable commission tied to meetings booked or pipeline generated. Compensation varies significantly by geography, industry, and company stage. The BLS tracks this role under the broader "Sales Representatives, All Other" category (SOC 41-3099) [1].

What certifications help SDRs stand out?

The HubSpot Inbound Sales Certification, Salesforce Administrator Certification, and programs like Aspireship, SV Academy, or Kforce Sales Training can strengthen a candidate's profile. While no certification is universally required, they demonstrate initiative and foundational knowledge [11].

Is the SDR role a good entry point for a sales career?

Yes. The SDR position is one of the most established entry points into B2B sales, particularly in the technology sector. High-performing SDRs frequently advance to Account Executive, Sales Manager, or Customer Success roles within one to two years [5].

What tools do SDRs use daily?

Core tools include CRM platforms (Salesforce, HubSpot), sales engagement software (Outreach, Salesloft), prospecting databases (ZoomInfo, Apollo, LinkedIn Sales Navigator), and communication platforms (Slack, Zoom). Familiarity with these tools is expected by most employers [3].

Do SDRs need a college degree?

Most job postings list a bachelor's degree as required, but an increasing number of employers — especially in tech — accept equivalent experience, sales bootcamp completion, or demonstrated prospecting skills in lieu of a degree [7].

What's the difference between an SDR and a BDR?

The titles are often used interchangeably, though some organizations distinguish them: SDRs focus on qualifying inbound leads, while Business Development Representatives (BDRs) focus on outbound prospecting. In practice, most roles involve both activities regardless of title [4].