COO at Siete, where he oversees operations and SDR team delivery for B2B clients across LATAM.
Most SDR job descriptions read the same: prospect, qualify, book meetings. What they don’t explain is why some SDR teams consistently fill a predictable pipeline while others just generate activity. After running outbound teams for B2B companies across LATAM and the US, that gap almost always comes down to the same three things: who they’re targeting, how they qualify, and what gets measured.
This guide breaks down what an SDR actually does day to day, the skills that separate a productive SDR from one who just stays busy, and the KPIs worth tracking — not just activity metrics.
At its core, an SDR is responsible for connecting potential customers with the sales team. Instead of closing deals, the SDR focuses on qualifying leads, engaging prospects, and booking the first meeting for sales representatives.
More specifically, an SDR’s job includes:
This role is especially critical in tech sales, where the sales cycle is longer and lead qualification is essential.
A sales development representative acts as the bridge between the marketing team and the sales team. While marketing generates inbound interest, SDRs turn that interest into real conversations with potential clients.
The sales development representative SDR works with:
Their goal is to assess fit, timing, and intent before moving prospects further down the sales pipeline.
The terms sales development rep and SDR are often used interchangeably, though some companies also use business development representative depending on job titles and structure.
Regardless of the title, the SDR position exists to protect the time of senior sales reps and make the sales role more efficient across the organization.
A strong sales development rep:
SDRs don’t work in isolation. They collaborate closely with other sales team members, including:
Alignment between these sales team members is essential for a healthy inside sales team.
Not every lead deserves a sales call. One of the SDR’s most important responsibilities is identifying qualified leads and filtering out low-intent prospects.
Qualified leads typically show:
Effective lead qualification ensures the sales pipeline stays focused on real opportunities.
Within the sales pipeline, SDRs operate at the very top. Their responsibilities usually include:
Without SDRs, many potential clients never reach the sales team at all.
Sales development has become a core growth engine for B2B companies. A well-trained SDR team can dramatically improve how companies generate and manage sales opportunities.
Organizations that invest in sales development often see:
This is why SDRs are considered a vital part of modern sales organizations.
A typical SDR job description includes:
For many professionals, the SDR role is one of the most common entry level positions in a sales career.
Depending on the company, SDRs may appear under different job titles, such as:
While the titles vary, the responsibilities across these sales roles are often very similar.
An important part of an SDR’s job is to educate prospects. Instead of pushing a sale, SDRs help prospects understand:
This consultative approach builds trust and improves lead quality.
Inbound leads usually arrive with some level of interest, but that doesn’t mean they’re ready to buy. SDRs assess intent, urgency, and fit before advancing them in the sales cycle.
Some inbound leads become warm leads, while others require additional lead nurturing.
Lead qualification is one of the most critical SDR responsibilities. Through smart questions and active listening, SDRs determine whether a prospect should move forward or be disqualified.
Strong qualifying leads practices protect sales teams from wasting time and resources.
Not every prospect is ready today. SDRs manage lead nurturing by staying in touch, sharing relevant insights, and building relationships until prospects are ready to engage with sales.
This process helps turn new leads into future customers.
Outbound leads require a different approach. SDRs proactively reach out to potential customers using:
The best SDRs know how to persuade leads without being pushy, focusing instead on real customer needs.
Among all key skills, active listening is one of the most important.
A successful SDR is an active listener who:
Combined with strong communication skills and other soft skills, active listening separates average SDRs from the best SDRs.
Top-performing SDRs combine many skills, including:
Many SDRs also join sales communities to improve their sales experience and performance.
Although SDRs don’t manage existing customers directly, they shape the first impression of the company. A strong first interaction sets the tone for the entire relationship and helps sales teams close deals more effectively.
Across the outbound processes we run at Siete, most B2B clients land between 8 and 25+ qualified meetings a month once targeting, cadence, and qualification are dialed in — the median sits around 12. The gap between an SDR who just stays busy and one who actually moves the pipeline almost always comes down to qualification: not how many calls get made, but how many of those calls turn into a meeting with the right person.
The SDR role is more than prospecting—it’s about building relationships, qualifying opportunities, and supporting the entire sales process.
A strong SDR team helps companies generate better leads, improve conversion rates, and grow faster. In today’s competitive market, investing in sales development is no longer optional—it’s essential.
Talk to our team to see how we can get a dedicated SDR team running for your company in weeks, not months.
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