---
title: 'Senior Manager, Tax at Mariner'
canonical: 'https://feeny.ai/job/senior-manager-tax-mariner-scottsdale-n964wstkr30p'
type: 'job'
last_seen: '2026-10-29'
---

# Senior Manager, Tax at Mariner

- **Company:** Mariner
- **Location:** Scottsdale, AZ
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-10-22
- **Last confirmed live:** 2026-10-29
- **Apply:** https://jobs.ashbyhq.com/mariner-careers/6742607a-81fb-42d5-aa5a-c331b904f1a1

## Job description

If you are looking to build your career with a firm that puts the client first by providing 360° advice designed to last, then Mariner Wealth Advisors is the right firm for you. We actively nurture the next generation of professionals, give back to the community and focus on building a diverse culture where everyone genuinely loves where they work and has the support needed to meet their career goals. As a Senior Manager, Tax, you will work directly with clients and wealth management teams to review and implement tax strategies for clients that include a coordinated financial strategy that aligns with each client’s goals and values. The successful senior tax manager will be a tax enthusiast, thoughtful listener, have a strong team mentality, and be driven to grow professionally and personally.

## Responsibilities

- Provide guidance, instruction, direction and leadership to the tax team to help achieve results, build expertise, and inspire the next generation of tax leaders
- Participate in obtaining new clients in partnership with strategic relationships and community networks
- Responsible for client relationships and retention; inspiring client confidence through demonstrated expertise; and help ensure we are meeting deadlines and addressing client questions and needs on an ongoing basis
- Work with peers and leaders to create and present strategic tax planning solutions to high-net-worth clients and closely held businesses
- Manage consulting and tax projects such as charitable giving calculations, private foundation minimum payouts and miscellaneous tax and financial planning projects
- Review tax returns, quarterly and annual income tax projections, estimated tax vouchers extension forms and related work papers and financial statements
- Commitment to continuing education, team development, training and mentoring new tax associates

## Qualifications

- Bachelor’s degree required
- 8+ years’ tax experience working in private or public accounting firm or financial planning firm
- CPA or EA required

## Skills and Knowledge

- Experience providing client-centric tax consulting to high-net-worth clients, partnerships, trusts and closely held entities
- Strong research capabilities related to technical matters for complex tax needs and updates to regulations
- Mastery of various tax compliance software products (CCH or GOSystem preferred)
- Highly effective interpersonal, relationship management and communication skills
- Excellent organizational and time management skills in a high energy culture to manage multiple priorities in a time-sensitive environment
- Demonstrated talent development experience, training new staff and mentoring interns
- Strong attention to detail

We welcome your interest in being a part of our firm. We believe in giving associates progressive opportunities, actively nurturing professional growth and giving back to the community. We are dedicated to building a diverse culture where everyone has the support they need to achieve their career goals. We offer an innovative workplace and a culture that fosters camaraderie, teamwork and work-life balance.

By submitting your application, you agree to the collection and use of your personal information as described in our [Employee and Applicant Privacy Notice](https://www.marinerwealthadvisors.com/mariner-employee-applicant-privacy-notice/).

## EOE M/F/D/V

## About Mariner

## Company Overview
- **One-liner**: Mariner is a privately held national financial services firm built to support modern wealth needs and the advisors who serve them, providing wealth management, investment solutions, and operational support.
- **Entity Type**: Private (privately held)
- **Headquarters**: Overland Park, Kansas, United States (based on company website and industry sources)
- **Founded**: 2006
- **Founders**: Marty Bicknell

## Core Business
- **Primary industry**: Financial services – wealth management, investment advisory, and RIA (Registered Investment Advisor) platform.
- **Target customers**: B2B (financial advisors, independent practices) and B2C (high-net-worth and mass-affluent clients served through advisors). Serves enterprise‑scale and independent advisors.
- **Mission or purpose statement**: “Positively impact the lives of many” by creating opportunities for clients, advisors, and communities.

## Products & Services
- **Wealth Management Platform**: A comprehensive suite of services including investment management, estate planning, tax advice, insurance, and wealth advisory backed by in‑house specialists.
- **Mariner Advisor Model**: Advisors join as firm employees with access to national‑scale resources, back‑office support, and collaboration.
- **Mariner Independent**: Advisors own their own practice while partnering with Mariner for infrastructure, compliance, and specialized expertise.
- **Corporate Services**: Support for tax professionals, operations, IT, marketing, HR, legal, and accounting & finance roles within the firm.

## Market Standing
- **Valuation/Market Cap**: Not publicly available (privately held, no disclosed valuation)
- **Key Metric**: Over **$632 billion in assets under advisement** as of December 31, 2025. The firm started with $300 million in 2006.
- **Notable Investors/Partners**: Barron’s ranked Mariner #6 Mega RIA in 2025 (top five 100 RIAs from 2016‑2024). No external equity investors disclosed.
- **Growth Signals**: 
  - Sustained ranking as a top‑tier RIA.
  - Active acquisition strategy (multiple firms joining the Mariner family).
  - Continued investment in people, technology, and capabilities.
  - Donated through the Mariner Foundation in 2025.

## Competitive Advantages
- **Scale with autonomy**: Advisors gain the infrastructure and specialist teams of a national firm while retaining the ability to operate in the model that best fits their goals (employee‑advisor or independent).
- **In‑house expertise**: Dedicated teams in tax, estate planning, insurance, and investment management reduce the need for third‑party outsourcing.
- **Multiple partnership pathways**: Unique flexibility to join as an advisor, via acquisition, or as an independent practice owner—all under the same brand and support umbrella.
- **Culture of collaboration**: Knowledge‑sharing and team‑oriented environment with a focus on putting clients first.

## Strategic Focus
- **Growth through advisor support**: Positioned to help advisors navigate the expected exit of up to 110,000 advisors over the next decade (per McKinsey) by providing the infrastructure to scale their practices.
- **Continued expansion**: Building out geographic presence and service capabilities via acquisitions and organic development.
- **Technology and capability investment**: Ongoing updates to business operations infrastructure to allow advisors to focus on clients.
- **Deepening client relationships**: Expanding tax, estate, and insurance services that were often built in response to client needs.

## Why Work Here
- **Culture highlights**: Collaborative, team‑oriented, and driven by a “clients first” mantra. Values diversity and inclusion, and offers a sense of belonging to a shared mission.
- **Remote/hybrid/office policy**: Supports different ways of working—advisors and associates have flexibility to engage in‑office or remotely. “Dress for your day” policy.
- **Notable perks and benefits**:
  - Comprehensive healthcare (medical, vision, dental)
  - Paid time off, 11 paid holidays, parental leave
  - 401(k) with company match
  - Wellness program, HSA & FSA, life & AD&D insurance
  - Telehealth, associate assistance fund, health & wellness awards
  - Education reimbursement, wealth advisory services
  - Client and associate referral bonuses, peer recognition program
  - Paid volunteer hours, identity theft protection
  - Discounts at local and national stores
- **Engineering/IT culture**: Corporate opportunities in IT, operations, marketing, HR, legal, and finance—all part of building the platform that supports advisors.

## Sources
1. [joinmariner.com/about-mariner/](https://joinmariner.com/about-mariner/)
2. [marinerwealthadvisors.com/careers/](https://www.marinerwealthadvisors.com/careers/)
3. [joinmariner.com](https://joinmariner.com/)
4. [joinmariner.com/why-mariner](https://joinmariner.com/about-mariner/why-mariner/)
5. [jobs.ashbyhq.com/mariner-careers](https://jobs.ashbyhq.com/mariner-careers)

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