Senior Sales Manager

SENIOR MANAGER- COMMERCIAL SALES (AMERICAS)

Sales

📍 Noida 🕐 Full-Time 🧭 10 - 15 years

THE MISSION

We aren't automating scripts — we're deprecating the era of manual-heavy testing entirely. TestMu AI is building the world's first AI-native platform where Agentic Intelligence autonomously plans, authors, and self-heals the entire Quality Engineering lifecycle.

Drive US enterprise sales growth through strategic leadership and team optimization.

THE PILLARS OF IMPACT

🚀 1. Team Leadership & Development (50%)

 – Lead and mentor a team of Account Executives.

 – Optimize team performance to exceed sales targets.

 – Develop and implement effective onboarding strategies.

 – Foster a high-velocity sales environment.

⚙️ 2. Sales Strategy & Execution (30%)

 – Manage and expand US/Americas sales pipelines.

 – Align sales strategies with company goals and market trends.

 – Execute data-driven decision-making processes.

🧠 3. Market Insights & Innovation (20%)

 – Analyze enterprise sales trends and develop actionable insights.

 – Promote innovation in sales techniques and tools.

MUST-HAVES — DO NOT APPLY UNLESS YOU HAVE THESE

 – You must have 8+ years of core B2B SaaS sales experience.

 – You must have 2–4+ years in a people management role.

 – You must have experience managing US/Americas sales pipelines.

 – You must have willingness to work full-time out of our Noida office.

 – You must have frontline empathy and analytical mindset.

THE BAR — WHAT YOU MUST PROVE

Proven Sales Leadership: Led a team exceeding sales targets consistently for over 2 years.

Strategic Pipeline Management: Managed and grew US sales pipeline by 30% year-on-year.

Analytical Decision-Making: Implemented data-driven strategies improving team efficiency by 25%.

Empathetic Leadership: Recognized for high team satisfaction and retention rates.

YOUR PATH

Reports directly to the COO. Potential to advance to a higher executive role as the team and market presence expand.

Your growth at TestMu AI is mapped to what you ship — not how long you've been here.

Job Title: Enterprise Sales Executive Manager

Location: Noida, Bangalore & Chennai

Experience: 2 to 7+ years in B2B Enterprise Sales, SaaS Sales, Cloud Solutions.

Language : English, Hindi proficiency will be an added advantage.

Key Responsibilities

• Identify and acquire enterprise customers.
• Manage end-to-end enterprise sales cycles from prospecting to closure.
• Generate new business through outbound sales, networking, referrals, and partnerships.
• Conduct product demonstrations and enterprise solution presentations.
• Engage with CXOs and key decision-makers across target accounts.
• Manage RFPs, RFIs, and enterprise procurement processes.
• Maintain accurate sales pipeline and opportunity data in CRM.

Requirements

• Strong experience in B2B and SaaS enterprise sales.
• Proven track record in handling large deals and long sales cycles.
• Understanding of APIs, cloud technologies, and digital transformation initiatives.
• Existing relationships with enterprise decision-makers and experience handling high-value enterprise accounts will be preferred.

About Us :

StarApps Studio LLP (AppMaker) enables enterprise and high-growth commerce brands to launch and scale Shopify- Based mobile apps without the traditional development effort. We partner with top brands across India and North America to drive measurable revenue growth and customer retention.

The Role :

We are seeking a highly strategic Senior Enterprise Account Executive to drive new business acquisition across enterprise and mid-market eCommerce brands. You will own the entire sales cycle, acting as a trusted advisor to C-suite stakeholders and closing high-value deals.

What You Will Do

• Drive Revenue: Own the full sales cycle from qualification to close, consistently exceeding quarterly and annual revenue targets.
• Navigate the Enterprise: Expertly manage complex, multi-stakeholder buying processes across eCommerce, Marketing, and Technology teams.
• Consult & Solve: Lead executive-level discovery calls, product demos, and commercial negotiations, collaborating with solutions teams to craft tailored proposals.
• Build Pipeline: Architect a robust pipeline through high-yield inbound and outbound efforts while maintaining meticulous CRM records and forecast accuracy.

What You Bring

• 4 to 8 years of elite B2B SaaS sales experience with a proven track record of exceeding aggressive quotas.
• Demonstrated expertise in closing complex deals in the $15K to $150K+ Annual Contract Value (ACV) range.
• A consultative, ownership-driven mindset with exceptional executive-level communication and negotiation skills.
• Preferred: Background selling into eCommerce/D2C brands, familiarity with the Shopify ecosystem, or experience managing US and international accounts.
• 
  

What Success Looks Like

• First 90 Days: Master the product, run independent discovery calls, and build a qualified pipeline worth 3 to 5 times your quarterly quota.
• First 6 Months: Successfully close your first flagship enterprise accounts and establish scalable outbound motions.
• Ongoing: Consistently achieve quarterly ARR targets while optimizing win rates and sales cycle efficiency.

We're a Gartner-recognized AI services company helping enterprises modernize their operations through ERP implementation, cloud transformation, and enterprise technology solutions. As we continue expanding our ERP practice, we're looking for a dedicated Senior Account Executive to drive enterprise growth across India.

If you understand how enterprise organizations evaluate and invest in ERP solutions—and you can sell complex, consultative technology services from first conversation through signed engagement—this is an opportunity to help organizations transform their business operations at scale.

The role

You'll own the full sales cycle for ERP implementation and transformation engagements, turning inbound opportunities and self-generated pipeline into signed implementation projects. This is a consultative, multi-stakeholder enterprise sale—you'll qualify opportunities, shape solutions with our engineering and delivery teams, lead commercial discussions, navigate procurement, security, legal, and executive stakeholders, close deals, and ensure a seamless transition to our delivery and account management teams.

Working as a Senior Account Executive at Navtech, you will:

• Own opportunities from first call through contracting — discovery, solutioning, proposals, security reviews, negotiations, and close.
• Qualify opportunities rigorously and make sharp go / no-go decisions.
• Build pipeline from both inbound leads and your own enterprise network.
• Lead responses to RFPs, RFIs, and enterprise procurement processes.
• Orchestrate cross-functional teams — engineering, delivery, legal, finance, and security — while aligning client stakeholders throughout the sales cycle.
• Build trusted relationships with business and technology leaders, including executive stakeholders.
• Onboard new customers and transition them smoothly to Delivery and Account Management.

Who Are We Looking For Exactly?

• 8+ years closing complex, consultative B2B deals — ideally in ERP services, IT services, enterprise software, cloud, or systems integration.
• Experience selling ERP implementations or enterprise technology solutions, with a network you can leverage.
• The ability to sell technical, business-critical engagements credibly — you can articulate business value and ROI without being an engineer, and know when to bring one into the conversation.
• A track record navigating multi-stakeholder enterprise deals through procurement, IT, security, legal, and executive stakeholders.
• Strong discovery skills and a structured qualification approach (MEDDICC, MEDDIC, BANT, or similar).
• A self-starter who thrives with autonomy and can collaborate effectively with globally distributed teams.

Bonus points: Experience selling ERP solutions such as SAP, Oracle, Microsoft Dynamics, ERPNext, or similar platforms; familiarity with ERP implementations, cloud migration, systems integration, data migration, finance, supply chain, manufacturing, HR, or enterprise business transformation initiatives.

Why Navtech?

• Yearly performance review and Appraisals.
• Competitive pay package with additional bonus and benefits.
• Work with US, UK and Europe based industry-renowned clients for exponential technical growth.
• Opportunities to work on multiple projects.
• Medical Insurance cover for self and immediate family.
• Work with a culturally diverse team from different geographies.

About us:

Navtech is a premier IT software and Services provider. Navtech’s mission is to increase public cloud adoption and build cloud-first solutions that become trendsetting platforms of the future. We have been recognized as the Best Cloud Service Provider at GoodFirms for ensuring good results with quality services.

Here, we strive to innovate and push technology and service boundaries to provide best-in-class technology solutions to our clients at scale. We deliver to our clients globally from our state-of-the-art design and development centers in the US, Hyderabad, and Pune. We’re a fast-growing company with clients in the United States, UK and Europe.

Strong Enterprise B2B Corporate Sales Leader Profile selling Employee Health Benefits, Wellness or Group Insurance solutions (Domestic, West region)

2

Mandatory (Experience) – Must have 8+ years of B2B sales experience selling to CHROs, HR leaders, Benefits Heads, Total Rewards Team and corporate decision-makers

3

Mandatory (Domain and Company) – Must have 5+ years of experience in enterprise corporate sales selling solutions such as group health insurance, OPD, wellness, preventive health and employee benefits to corporates

4

Mandatory (Hunter and Closer) – Must drive the full enterprise sales cycle end to end, from prospecting and pipeline building through consultative solutioning, negotiation and closure, and close deals personally rather than handing them to the team

5

Mandatory (Network) – Must have a ready network of enterprise and CXO contacts (CHRO, CFO, CEO, CIO, Procurement) they can approach directly to open and close deals

6

Mandatory (Market) – Must have sold into large enterprise and mid-market corporate accounts (GCCs, IT-ITES, manufacturing, BFSI, pharma) in India

7

Mandatory (Leadership) – Must have built and led a sales team of 5+, owning forecasting and pipeline discipline

8

Mandatory (Communication) – Must have elite verbal and written communication, executive presence, storytelling and presentation skills, fluent in English

9

Mandatory (Stability) – Must show 2+ years per organisation with no significant gaps across the most recent 3+ years

10

Mandatory (Company) – Health InsuranceTech, InsuranceTech having Healthcare Insurance, TPAs etc

11

Mandatory (Note) – Must be based in or open to relocating to Mumbai (Andheri); the role owns the West region (Mumbai, Pune, Ahmedabad, not restricted)

12

Preferred (Education) – MBA

Job Role: Sales Manager – Industrial Instruments (Field Sales | Hybrid)

Educational Background: Degree/Diploma in Mechanical Engineering, Instrumentation, Electrical, Electronics, or related fields.

Experience: 5–12 years in Industrial B2B Sales / Technical Sales. Prior field sales experience in industrial products is mandatory.

Skills: Strong negotiation and communication skills.

• Ability to independently manage territory sales.
• Commercial understanding with technical aptitude.
• High ownership and execution mindset.
• Comfortable with frequent customer visits and travel.

Salary: Based on experience, capability, and current profile. Performance

Incentives:

• Monthly / Quarterly performance-linked incentives.
• Rewards for achieving and exceeding targets.

Career Growth:

• Opportunity to grow into regional leadership roles.
• Exposure to lean business systems and industrial applications.

About IOTAFLOW:

IOTAFLOW specializes in industrial products and process instruments, offering innovative solutions to businesses. As a lean enterprise, we value professionals who strive for excellence and continuous improvement.

Growth: Join a lean enterprise focused on continuous improvement and career advancement. Job description Unlock Your Potential with IOTAFLOW!

Are you ready to drive successin field sales while working with cutting-edge process instruments? We’re on the lookout for skilled professionals passionate about industrial sales and eager to make an impact.

You’re Role at a Glance As a Sales Manager, you’ll play a pivotal role in expanding our reach and delivering value to our clients.

Your responsibilities include:

Business Development & Territory Growth

• Develop and expand business across Delhi NCR and nearby industrial clusters.
• Generate enquiries from OEMs, contractors, consultants, end users, EPC companies, utilities, and industrial plants.
• Identify high-potential accounts and build long-term customer pipelines.

Technical & Application Sales

• Understand customer process requirements and recommend suitable flow measurement and process instrumentation solutions.
• Conduct technical discussions, site visits, and application evaluations. Coordinate with internal technical and commercial teams for solution development. Quotation & Order Conversion
• Prepare techno-commercial offers and negotiate pricing commercially. Follow up aggressively for approvals, negotiations, and order closures. Maintain healthy enquiry-to-order conversion ratios.

Team & Channel Development

• Support dealer/distributor development in assigned territory.
• Guide junior sales engineers wherever required.
• Ensure disciplined CRM updates, visit planning, and reporting. Customer Relationship Management
• Build strong relationships with plant heads, purchase teams, consultants, and project teams.
• Handle escalations professionally and maintain customer confidence.

Perks & Benefits

• Opportunities to work with innovative industrial products.
• A supportive, growth-oriented team culture.
• Recognition and rewards for exceptional performance.

Position: Enterprise Account Manager

Location: Andheri (E), Mumbai

CTC Offered: 16LPA to 25LPA (80% fixed & 20% Variable)

JD 

• Proven independent performer with strong Mumbai market knowledge, connects in OEM ecosystem.
• Managing internal and external stakeholder relations and negotiating contracts.
• Will need to drive CXO level engagement and conversations.
• Achieving business goals and revenue targets.
• Seeking new business opportunities in their region and securing contracts for the company.
• Securing long-term relationships by maintaining practical client relations.
• Preparing and presenting regional reports for senior management.

Required Qualification-

• Experience - 6 to 10 Years (In infrastructure and or Cybersecurity domain)
• Mumbai Market connects 
• Ability to measure and analyse key performance indicators (ROI and KPIs).
• Familiarity with CRM software.
• Excellent communication skills.
• Strong organizational skills with a problem-solving attitude.
• Availability to travel as needed

Sales Strategy and Revenue Management

Develop and implement company-wide sales strategies to achieve revenue, gross profit, and profitability targets.

Set and monitor sales budgets, targets, and performance objectives across all branches and sales teams.

Identify sales gaps and implement corrective actions to improve performance and achieve company objectives.

Sales Team Leadership and Performance Management

Lead, coach, and develop Sales Managers, Branch Managers, and sales personnel to achieve individual and team targets.

Conduct regular sales performance reviews, provide direction, and identify training and development needs.

Promote a high-performance sales culture focused on accountability, customer service, teamwork, and results.

Business Development and Market Expansion

Identify and pursue new business opportunities, major accounts, projects, and strategic partnerships.

Develop strategies to expand the company’s market presence across Papua New Guinea.

Monitor market trends, competitor activities, customer requirements, and emerging opportunities to guide sales initiatives.

Key Account and Customer Relationship Management

Build and maintain strong relationships with key corporate, government, and institutional customers.

Support branches and sales teams in major quotations, tenders, negotiations, and strategic account development.

Ensure high standards of customer service and timely resolution of significant sales and customer concerns.

Sales Forecasting, Pipeline and Reporting

Maintain accurate company-wide sales forecasts and monitor the sales pipeline, quotations, tenders, and major opportunities.

Review branch and sales team performance against budget and provide regular sales reports and recommendations to senior management.

Ensure accurate and timely reporting of sales activities, results, margins, and business opportunities.

Product, Pricing and Margin Management

Work closely with management and relevant departments on product positioning, pricing, promotions, and sales campaigns.

Ensure sales teams understand the company’s ICT solutions, copiers, hardware, furniture, appliances, and other product offerings.

Monitor sales margins and ensure transactions support the company’s profitability objectives.

Cross-Functional Coordination and Compliance

Work closely with Branch, Operations, Service, Software, Stocks, Accounts, and Purchasing teams to support customer requirements and business objectives.

Ensure sales activities comply with company policies, procedures, approved pricing, credit requirements, and applicable standards.

The Mission: TestMu AI

TestMu AI (formerly LambdaTest) is an AI-native platform moving software testing beyond automation into the era of agentic intelligence.

We provide end-to-end AI agents that manage the entire Quality Engineering lifecycle.

• Full-Stack AI Agents: Autonomously plan, author, and execute tests.
• Comprehensive Coverage: Supporting web, mobile, and enterprise apps.
• Real-World Testing: Scale execution across real devices and browsers.
• Continuous Optimization: Self-learning agents that enhance testing depth

What You’ll Own (and Ace)

You're not here to manage. You're here to lead, grow, and wow. Join a company that’s redefining how the world tests software. At LambdaTest, you’ll drive impact at scale and thrive in a high-growth, innovation-first environment.

You’ll Thrive Here If You Have

✅ Account Management Experience:

• 7-12 years of experience in Account Management within SaaS or enterprise technology.

✅ Account Management Skills:

• Proven success in managing large and complex accounts, including C-level stakeholder engagement.
• Strong relationship-building skills combined with commercial acumen.
• Proficiency in CRM tools (e.g., HubSpot, Salesforce) and Excel for account planning.

✅ Bonus Skills:

• Knowledge of DevOps, QA tools, or cloud infrastructure is a plus.

Your Mission

🤝 Relationship Management

• Own key accounts and be their go-to point of contact
• Deep dive into usage patterns, feedback loops, and business needs
• Deliver insights that help clients scale smarter

📈 Business Growth

• Identify and close upsell/cross-sell opportunities
• Drive account renewals, expansions, and product adoption
• Focus on managing and growing Enterprise Accounts with significant revenue potential and intricate stakeholder relationships.



🎯 Performance + Coordination

• Track and report account performance regularly
• Collaborate with internal teams (Sales, CS, Product) to unlock value
• Resolve blockers and challenges without waiting to be asked

What Your Day Looks Like at LambdaTest

• Every day is dynamic, fast-paced, and full of opportunities to make an impact:
• Morning huddle to align goals with your pod
• Strategic calls with enterprise clients to drive engagement
• Deep dive into client metrics to identify new value opportunities
• Syncs with product, sales, and CS to resolve blockers and deliver exceptional service
• Time for learning, mentorship, and driving innovation in client strategies
• Wrap with a performance review and prep for a stronger tomorrow

Meet Your Mentors

Saahil Menoki - VP of Sales, A scale-driven SaaS leader with zero tolerance for mediocrity. Expect mentorship, autonomy, and high-growth momentum.

Growth Timeline at TestMu AI

Your role isn’t a stop, it’s a launchpad.

Here's an overview of what growth looks like here based on your performance:

Perks That Matter

• Comprehensive Health Insurance: 100% premium covered for you + family (spouse, kids, parents), with cashless claims, maternity, and annual check-ups.
• Meals On Us: Fresh, daily lunch and dinner served at the office.
• Cab Facility: Safe, GPS-enabled transport for eligible shifts, home-office-home.
• POD Engagement Budgets: Quarterly team-building budgets to bond, celebrate, and collaborate.
• Flexible Work Culture: Hybrid setup, flexible hours, and WFH reimbursements based on role/team.

Why TestMu AI?

• Real impact, global scale
• A launchpad for leadership
• Inclusive, learning-obsessed culture
• Top-tier perks: Full health cover (incl. parents), fresh meals, safe commute, WFH support

This isn’t just a job. It’s where your career takes flight.

Apply now and start building what’s next.

Apply for this job

. Position Overview NIT DATA is looking for a senior, revenue-owning enterprise sales professional with a strong track record in IT staffing and technology services sales. The role will focus on acquiring and expanding relationships with premium enterprise organizations, GCCs, technology companies and global organizations looking to build or scale India-based technology teams. This is an end-to-end hunting and client acquisition role—not a pure SDR, lead-generation or appointment-setting position. The successful candidate will own the commercial journey from ICP/account identification and relationship building through meetings, presentations, solution positioning, proposals, negotiations, client onboarding and revenue generation. 2. What the Candidate Will Sell • IT Contract Staffing and Staff Augmentation • Contract-to-Hire (C2H) • Permanent / FTE Hiring • Project-Based Hiring and Technology Teams • Remote / Offshore Technology Resources • RPO and Recruitment Solutions • Dedicated Technology PODs • ODC / Offshore Development Models • GCC Talent and Team Build-Out • BOT (Build-Operate-Transfer) engagements • Managed staffing / workforce solutions 3. Core Responsibilities Enterprise Client Acquisition & New Logo Hunting • Identify and target premium enterprise organizations within NIT DATA’s Ideal Customer Profile (ICP). • Build and execute account-entry strategies for strategic target accounts. • Identify organizations with technology hiring, transformation, GCC expansion, project or workforce requirements. • Develop relationships with CXOs, CHROs, CIOs, CTOs, Heads of Engineering, TA Heads, GCC leaders and Procurement stakeholders. • Map multiple stakeholders within strategic accounts and build multi-threaded relationships. • Generate qualified opportunities through outbound prospecting, referrals, networking, events, LinkedIn and account-based selling. Staffing & Technology Services Sales • Sell contract staffing, C2H, permanent hiring, project-based hiring, staff augmentation, dedicated teams and remote technology resources. • Understand staffing commercials including bill rate, pay rate, markup, margin, conversion fees, contract duration, replacement terms and payment terms. • Understand MSA, SOW, rate-card and procurement/vendor-onboarding processes. • Identify opportunities to move from individual-resource hiring into larger team, POD, project, ODC or managed-service engagements. GCC / ODC / BOT Business Development • Identify organizations setting up, expanding or transforming GCCs in India. • Engage GCC Heads, Site Leaders, CIO/CTO organizations, Global TA leadership and Procurement. • Position staffing, dedicated teams, ODC, POD and BOT models based on client requirements. • Identify GCC build-out opportunities involving leadership hiring, engineering teams, niche technology talent and scale-up requirements. • Understand the commercial and stakeholder complexity of offshore / India delivery models. Global Client & Remote Resource Acquisition • Acquire global clients seeking India-based or remote technology resources. • Experience selling to US, UK, Europe, Middle East, APAC or other international organizations is preferred. • Understand global procurement, vendor onboarding, commercial negotiation and stakeholder-management processes. • Build long-term relationships with global organizations that can generate recurring India-based hiring or project opportunities. Project-Based Hiring & Solution Selling • Generate business where clients require teams rather than only individual resources. • Identify opportunities across AI/ML, Data, Cloud/DevOps, SAP, Salesforce, ServiceNow, Product Engineering, QA, Cybersecurity and other technology domains. • Work with solution/delivery teams to shape the right engagement model. • Translate client business and workforce problems into staffing, POD, ODC, BOT or project-based solutions. End-to-End Sales Ownership Own the complete commercial lifecycle: Prospecting → Account Mapping → Relationship Building → Discovery → Meeting → Presentation → Solution → Proposal → Negotiation → MSA/SOW → Onboarding → First Requirement → Fulfilment → Revenue → Account Expansion • Conduct client meetings, presentations, workshops and executive discussions. • Prepare and present proposals, commercials and solution presentations. • Lead negotiations and coordinate internal stakeholders through contract closure. • Drive client onboarding and ensure the first requirement is generated quickly. • Build repeat business and expand wallet share across accounts. 4. Client Meetings & Travel • Comfortable with face-to-face enterprise selling and frequent business travel. • Conduct CXO and senior stakeholder meetings. • Represent NIT DATA at industry conferences, GCC forums, networking events and client workshops. • Travel across major Indian technology markets including Hyderabad, Bengaluru, Chennai, Pune, Mumbai and Delhi NCR as required. 5. New-Age Sales Tools & Technology The candidate must be comfortable with technology-enabled selling and should have hands-on experience using modern sales intelligence, engagement, CRM and AI productivity tools. Category Examples Prospecting & Account Intelligence LinkedIn Sales Navigator, Apollo, ZoomInfo, Lusha, Crunchbase, Clay, RocketReach, 6sense or similar Sales Engagement Outreach, Salesloft, Apollo Sequences, HubSpot, Salesforce, Zoho, Freshsales AI & Productivity ChatGPT, Microsoft Copilot, Gemini, Claude, AI account research, AI email personalization, AI meeting preparation CRM & Pipeline Salesforce, HubSpot, Zoho or equivalent CRM; pipeline, forecasting and activity tracking 6. Revenue Ownership This is a quota-carrying / revenue-generating position. The candidate must be able to demonstrate measurable commercial results from previous roles. • New client acquisition • New revenue generation • Gross margin contribution • Strategic account growth • Project / team-based revenue • GCC / ODC / BOT opportunity creation • Pipeline development and forecasting 7. Ideal Candidate Profile • 8–15 years of B2B sales / business development experience. • Strong IT staffing / recruitment / IT services sales background. • Proven enterprise client acquisition and new-logo hunting experience. • Experience owning the complete sales cycle from prospecting to closure and onboarding. • Demonstrated success with contract staffing and project-based hiring. • Exposure to GCC, ODC, BOT, offshore delivery or dedicated team models. • Experience selling India-based or remote technology resources to global organizations. • Strong CXO, HR, TA, Procurement and business stakeholder engagement skills. • Excellent presentation, negotiation, consultative selling and relationship-management skills. • Willingness to travel extensively for client acquisition and relationship development. • Strong adoption of modern sales tools, CRM, sales intelligence and AI-enabled GTM tools. 8. Preferred Industry Background • IT Staffing / Workforce Solutions • Technology Recruitment • IT Services / Digital Engineering • Managed Services • Offshore Development / ODC • GCC advisory / setup ecosystem • RPO / Recruitment Solutions • Engineering Services • Technology Consulting 9. Key Stakeholders the Candidate Should Have Sold To • CIO / CTO / CDO • CHRO / Chief People Officer • VP / Director – Engineering or Technology • Head of Talent Acquisition / Recruitment • Head of GCC / GCC Site Leader • Global TA / Workforce Planning Leaders • Procurement / Strategic Sourcing • Vendor Management / MSP • Business Unit and Delivery Leaders