Senior Sales Development Manager

InvestedintheMission; Los Angeles (CA); On-site; USD 180,000 - 215,000; Full time

Benefits offered by this job

Stock options

Generous PTO

Health insurance

401k match

Job summary

Epsilon3 is seeking an experienced Senior Sales Development Manager to lead and scale our SDR team for a high-velocity, B2B SaaS environment. You will coach, hire, and ramp SDRs, architect scalable outbound programs, and drive pipeline generation in collaboration with Sales and Marketing leadership.

You will act as a hands-on leader, deeply involved in meetings, calls, and emails while building a culture of accountability, learning, and success.

Qualifications

• 5–10+ years in SDR/BDR or outbound sales
• 2+ years leading SDR/BDR teams in a B2B SaaS environment
• Experience hiring, onboarding, coaching SDRs to high performance
• Experience scaling SDR teams (4–10+ reps)

Responsibilities

• Lead, coach, and mentor the SDR team through regular 1:1s and reviews
• Hands-on involvement to set meetings, make calls, and send emails
• Architect hiring plans to recruit and ramp new SDRs
• Drive outbound performance and manage the outbound quota
• Develop outbound strategies and sales playbooks
• Track KPIs and use data to improve conversion and forecasts
• Partner with Sales, Marketing, and RevOps for lead quality and handoffs
• Foster a collaborative, high-performance culture
• Support field marketing and events to drive pipeline

Skills

Leadership

Coaching

Outbound prospecting

Data-driven optimization

Cross-functional collaboration

Tools

HubSpot

Salesforce

Apollo

LinkedIn Sales Navigator

Outreach

Salesloft

Job description

Epsilon3 is a multi-product operations management platform revolutionizing the way teams build, launch, and operate spacecraft and other advanced hardware systems.

Launched in 2021, our company is led by engineers from SpaceX, Google, and NASA, who have experience supporting over 100 space missions. Innovative teams at Blue Origin, Rocket Lab, Axiom Space, Firefly Aerospace, and many others depend on our web-based (SaaS) solutions to plan and track high-stakes procedures. We raised a $15M Series A funding round led by Lux Capital, Y Combinator (YC S21), and other world-class investors.

We're looking for an experienced Senior Sales Development Manager to lead, scale, and grow our Sales Development team. This is a great opportunity for a strategic leader who enjoys coaching people, building high-performing teams, and creating scalable outbound processes.

You’ll be responsible for managing and developing our current SDRs while designing the strategy to scale the team as we continue to grow. Working closely with Sales and Marketing leadership, you’ll drive pipeline generation, improve performance through advanced coaching and enablement, and build a culture of accountability, learning, and success.

What You’ll do:

• Lead, coach, and mentor our existing SDR team through regular 1:1s, call reviews, and ongoing professional development
• Act as a hands-on player-coach, rolling up your sleeves to help set meetings, make calls, and send emails - both to deeply learn the process and directly contribute to team targets
• Architect the hiring plan to recruit, hire, onboard, and ramp new SDRs as we expand the team
• Drive team performance against activity, meeting, and pipeline goals, taking full ownership of the outbound quota
• Develop and refine sophisticated outbound prospecting strategies, messaging, and sales playbooks
• Track KPIs and use data to identify coaching opportunities, improve conversion rates, and report pipeline forecasts to leadership
• Partner closely with Sales, Marketing, and RevOps to ensure high-quality lead generation and smooth handoffs
• Foster a collaborative, high-performance culture with a focus on continuous improvement
• Support field marketing and occasional events when needed to drive pipeline

What We’re Looking For:

• 5–10+ years of experience in an SDR/BDR or outbound sales role, with 2+ years managing or leading an SDR/BDR team in a B2B SaaS environment (experience scaling a team from scratch is a plus)
• Hands-on experience as an SDR/BDR - you’ve done the role yourself and can coach from experience
• Proven ability to hire, onboard, coach, and develop SDRs into high-performing sales professionals and future Account Executives
• Experience leading and scaling a small to mid/large-sized SDR team (4-10+ reps)
• Strong track record of consistently meeting or exceeding pipeline and team performance goals
• Expertise in outbound prospecting, including cold calling, objection handling, email sequencing, and LinkedIn outreach
• Experience using CRM and sales engagement tools such as HubSpot (preferred), Salesforce, Apollo, LinkedIn Sales Navigator, Outreach, or Salesloft
• Strong analytical skills and comfort using data and reporting to manage performance, identify trends, and improve results
• Strong communication, leadership, and cross-functional collaboration skills
• Familiarity with AI tools to improve research, personalization, coaching, and team productivity is a plus
• Strong preference for experience selling high average contract value (ACV), complex technical enterprise software to complex industries like aerospace, defense, energy/nuclear, federal, etc

What success looks like:

• Build and develop a motivated, high-performing SDR team that consistently exceeds pipeline goals
• Successfully onboard and ramp new hires into productive team members
• Improve team productivity and conversion rates through effective coaching and process improvements
• Create scalable outbound programs that support the company’s continued growth
• Be a trusted partner to Sales and Marketing leadership in driving predictable revenue growth

Why Join Us:

• Opportunity to lead and scale a growing SDR organization
• Make a direct impact on company growth and revenue
• Work alongside a collaborative, ambitious, and supportive leadership team
• Competitive compensation, benefits, and opportunities for career advancement

Perks:

• This full-time role includes stock options, generous PTO, health insurance, and a 4% 401k match.

Epsilon3 is an equal opportunity employer committed to diversity and inclusion in the workplace. We prohibit discrimination and harassment of any kind based on race, color, sex, religion, sexual orientation, national origin, disability, genetic information, pregnancy, or any other protected characteristic as outlined by federal, state, or local laws. This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, compensation, benefits, training, and apprenticeship. Epsilon3 makes hiring decisions based solely on qualifications, merit, and business needs at the time.

180000 - 215000 USD a year