Grace Seelbach

Proposal Manager at Southland Holdings

Austin, Texas, United States

About

I manage the development and submission of proposals for large-scale construction projects. I thrive in fast-paced environments, juggling multiple deadlines while working closely with cross-functional teams to create clear, compelling proposals that meet client needs. I am known for my attention to detail, strong communication skills, and a drive to continuously improve processes. I take pride in being a reliable team player who helps move projects forward and contributes to our team’s overall success.

Experience

  • Southland Holdings (Grapevine, Texas, United States)
    • Proposal Manager
      Jan 2026 - Present · 6 mos

      • Lead end-to-end proposal development for major infrastructure projects, coordinating cross-functional teams to meet tight deadlines. • Drive proposal strategy and messaging, aligning content with branding and client requirements. • Oversee content libraries and past-performance materials to improve efficiency and reuse. • Collaborate with technical experts, designers, and leadership to meet tight deadlines. • Review proposals for compliance, accuracy, and RFP adherence; coordinate leadership approvals. • Mentor coordinators on content, design standards, and best practices. • Proficient in InDesign and Unanet CRM by Cosential.

    • Proposal Coordinator
      Nov 2022 - Jan 2026 · 3 yrs 3 mos

      • Supported proposal development by gathering inputs and coordinating team contributions. • Created content aligned with company messaging, branding, and client requirements. • Maintained content databases for efficient access and reuse. • Collaborated with experts and designers to produce accurate, compliant proposals. • Applied InDesign and Unanet CRM by Cosential for document creation and tracking.

  • Delta Gamma (San Marcos, Texas, United States · On-site)
    • Vice President: Panhellenic
      Jan 2021 - Dec 2021 · 1 yr

      The vp: Panhellenic acts as the voice for the chapter on all Panhellenic matters. This position serves on the chapter management team (CMT) and is the chapter’s representative to the College Panhellenic (CPH). The vp: Panhellenic works with (or fulfills the responsibilities of): the director of interfraternal activities, the director of productions and the alternate Panhellenic delegate. They exchange ideas, programs and information among collegiate chapters, the CPH and the National Panhellenic Conference (NPC).

    • Nominating Committee Junior member-at-large
      Oct 2021 - Nov 2021 · 2 mos

      Chosen by the chapter to assist in forming a chapter slate of executive positions for the year of 2022 based on input from the chapter members' officer interest forms.

    • Director of Interfraternal Activities
      Jan 2020 - Dec 2020 · 1 yr

      The Director of Interfraternal Activities reports to the vice president: Panhellenic and serves on the joint chapter management team (JCMT). They are responsible for coordinating events and planning activities for the chapter that help the chapter interact with other organizations.

  • Human Resources Intern at Webber
    Jun 2020 - Aug 2020 · 3 mos

    • Provided administrative support by reviewing the company’s HR policies, employee benefits, and other related documentation. • Enhanced the accuracy of company databases by inputting new employee contact information and employment details. • Screened potential employees’ resumes and application forms to identify suitable candidates to fill company job vacancies. • Maintained and managed all confidential documents including offer letters and I-9 documentation.

  • Human Resources Intern at Webber
    Jun 2019 - Aug 2019 · 3 mos

    • Provided administrative support by reviewing the company’s HR policies, employee benefits, and other related documentation. • Enhanced the accuracy of company databases by inputting new employee contact information and employment details. • Screened potential employees’ resumes and application forms to identify suitable candidates to fill company job vacancies. • Maintained and managed all confidential documents including offer letters and I-9 documentation.