Senior Proposal Writer

Job Locations US-VA-Reston
Job Post Information* : Posted Date 2 months ago(10/14/2021 9:56 AM)
Location : Location
Clearance Requirement
Job Requires Relocation


SOS International LLC (SOSi) is seeking a qualified Proposal Writer to support our Capture and Proposal Team. The writer is responsible for a variety of tasks related to producing and publishing proposals, white papers, and other Business Development-related material including assisting to develop and edit graphics for hard copy and electronic submissions. The proposal writer creates, reviews, and edits material to ensure compliant, compelling, and accurate text is prepared for final dissemination.


  • Writes and leads technical, management, resume, and/or past performance sections and volumes
  • Works as part of a collaborative team to clearly articulate solution and strategy, approach to performing the work, experience, win themes, and discriminators
  • Ensures high-quality content for proposals and other corporate materials
  • Reviews RFPs and to helps confirm that proposal responses are compliant and compelling
  • Edits and guides content of proposal artifacts through the review processes
  • Researches and writes material as needed
  • Harmonize proposal writing across the volume to ensure one voice in presenting proposal content
  • Provides JIT training and supports additional training initiatives focused on improving writing capabilities of staff throughout the organization
  • Updates and maintains SOSi Writer’s Style Guide


  • Bachelor’s degree in English or related field
  • 8 - 10 years direct proposal technical writing experience
  • Proven writing experience with the ability to clearly and concisely write proposal sections to convey knowledge of the client’s mission and business objectives and how our solution meets or exceeds requirements
  • Ability to interview subject matter experts (SMEs) and translate to compliant, compelling proposal writing
  • Able to take bulleted information, snippets and rough ideas (from meeting notes and storyboards) and transform them into compelling proposal narrative 
  • Experience as a Volume Lead, Book Boss, or Lead Technical/Management Writer
  • MS Word Proficiency
  • Excellent reading comprehension, writing, spelling, communication, and interpersonal skills
  • Demonstrated ability to manage time and deliverables under tight deadlines
  • Strong critical reasoning and problem-solving skills
  • Adapt easily in a growing, developing, and fast-paced environment
  • Must be flexible, highly motivated, and reliable
  • Ability to multi-task; organize and prioritize multiple on-going projects
  • Must be able to obtain a Secret security clearance

Preferred Qualifications

  • Master’s Degree in English or related field
  • Relevant professional affiliations and/or memberships such as Society for Technical Communication (STC)
  • Understanding of Federal Government proposal development and related Shipley training
  • APMP Certification
  • Knowledge of standard RFP/contract structure and contract types and Federal Acquisition Regulations (FAR) Processes
  • Top Secret or Secret clearance
  • Fluency in a foreign language

Working Conditions

  • Normal office working conditions.
  • Around-the-clock availability and non-traditional working hours including nights, weekends and holidays, as needed.
  • Occasional physical exertion, including lifting and/or moving objects or packages weighing up to 25 lbs.


Sorry the Share function is not working properly at this moment. Please refresh the page and try again later.
Share on your newsfeed