Parttime Proposal Writer

About RIVUS RIVUS Consulting LLC is currently seeking a part time (PT) Proposal Writer to augment our team. RIVUS is an established small business that provides engineering, environmental, and technology consulting services to a wide range of clients. Our core capabilities include infrastructure engineering, site engineering, water/wastewater engineering, stormwater management, environmental permitting, and program/construction management. Our engineers, planners, GIS/IT professionals, landscape architects, inspectors, and construction managers provide sustainable solutions for federal, state and municipal clients.

About The Role The PT Proposal Writer shall write persuasive, well-structured proposals for engineering and environmental contracts with federal, state, and local government agencies. This position plays a key role in helping RIVUS expand its portfolio and secure new contracts.

• Reviewing RFPs, RFIs, or RFQs and task order requests to understand all requirements, client needs, and evaluation criteria.
• Summarizing proposal requirements, preparing proposal outlines, documenting action items and coordinating the proposal schedule.
• Interviewing and collaborating with subject matter experts, sales, and technical teams to gather necessary information.
• Assigning and collecting information from technical personnel and translating it into clear and easily understandable writing.
• Creating, editing, and preparing SF255, SF330, or other RFP specified formats, including resumes, past performance narratives, graphics, and other technical and financial sections.
• Reviewing and editing proposal responses for consistency, compliance, win-theme incorporation, messaging alignment, and solution accuracy during regular and core team review cycles.
• Ensuring high-quality proposal responses while meeting all deadlines.
• Drafting clear, compliant, and compelling text that articulates the proposed solution and its benefits.
• Coordinating proposal timelines, content development, and ensuring all deliverables are submitted on time.
• Proofreading documents for clarity, grammar, consistency, and ensuring compliance with all submission guidelines.
• Maintaining and updating a repository of reusable content and templates to streamline future proposal efforts.
• Supporting development of graphics, organization charts, and other visual content as needed.

• Minimum of five years’ experience in proposal writing.
• Background in federal, state, and municipal proposals preferred.
• Excellent writing skills.
• Ability to translate complex technical or project information into accessible, persuasive language.
• Strong proposal coordination skills and the ability to manage multiple simultaneous proposals under tight deadlines.
• Familiarity with Microsoft Office Suite (Power point, Word, Excel); experience with Adobe InDesign or other layout tools is a plus.

PT, as-needed, field/remote office

$50/hour (1099 contract position)

Maryland or Texas

Flexible work from home options available.