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Proposal Writer, US Government Markets (TS/SCI)

Join Apex as a Proposal Writer to drive business growth through compelling proposals for US Government and other markets.

Location
Los Angeles, United States
Compensation
Not disclosed
Level
mid
Type
full time

Posted by employer 2 days ago

First seen on Joblaze 1 day ago

Last verified on the company career page 1 day ago

Apply at Apex Space → Save job Scanned from apexspace.com

What you'll build

  • Serve as a primary author of responses to RFIs and RFPs
  • Oversee the entire proposal lifecycle
  • Translate technical concepts into readable materials
  • Create persuasive content showcasing product strengths
  • Align work with established guidelines and quality standards

Must have

  • 2+ years of experience writing proposals for US government or aerospace customers
  • Experience working with cross-functional teams under tight deadlines
  • Solid writing and editing skills
  • Clear communicator in various formats
  • Strong organizational skills

Nice to have

  • Direct experience in spacecraft or spacecraft-adjacent markets
  • Active Top Secret SCI clearance or willingness to attain clearance

Requirements

Experience
2+ years

Not disclosed in this posting: compensation, work arrangement, visa sponsorship.

Benefits

401k Match Unlimited PTO Equity/Stock Options Health Insurance Parental Leave

Joblaze summary

In the role of Proposal Writer at Apex Space, the individual is responsible for crafting compelling proposals that secure contracts across various markets, including US Government and commercial sectors. This position requires strong writing and editing skills, along with the ability to translate complex technical concepts into accessible content. Ideal candidates will have at least two years of experience in proposal writing for aerospace and defense, and should be comfortable collaborating with cross-functional teams under tight deadlines. Apex's fast-paced environment demands a proactive and organized approach, making it suitable for those who thrive in dynamic settings.

Joblaze insights

  • Listed yesterday — first seen on Joblaze September 23, 2026. Last confirmed on Apex Space's careers page September 23, 2026.

Quick facts

How much experience is required?
At least 2 years of relevant experience for this Proposal Writer, US Government Markets (TS/SCI) role.
What seniority level is this role?
Apex Space targets mid-level candidates for this position.
Is this full-time or contract?
Full-time for this Proposal Writer, US Government Markets (TS/SCI) role at Apex Space.

From the original posting

About the Role

As a Proposal Specialist (Proposal Writer), you are a critical driver of Apex’s business growth. Through collaborating with Business Development, Product, and Mission Management stakeholders, you will drive Apex’s growth by compiling high-quality and compelling proposals to win contracts. You will work across all of Apex’s markets: US Government, Commercial, and International Government.

You will maintain Apex’s suite of productized proposal templates and content library. Detail-oriented, an effective communicator, and a creative writer, you are capable of transforming complex technical concepts into persuasive proposals, white papers, presentations, and other material. By understanding customer requirements, you will effectively deliver content that aligns with customer business goals/needs.

Apex is fast-paced, and you'll be expected to make decisions independently by weighing many needs and priorities. In this role, you'll wear many hats, arising to new business challenges while growing your skills and domain expertise on the job. We are looking for mission-driven teammates who can jump into any new business pursuit with enthusiasm and operate at a high quality within tight deadlines.

Responsibilities:

  • Serve as a primary author of responses to Request for Information (RFIs), Request for Proposal (RFPs), and other new business opportunities.

  • Oversee and quarterback the entire proposal lifecycle, and own final delivery of complete proposals including: technical, cost/price, schedule, and other content.

  • Translate technical concepts into easily digestible reading materials for a variety of audiences.

  • Create persuasive content that showcases product strengths, capabilities, and solutions to address customer needs.

  • Take high-level details as well as rough draft content and convert them into high-impact content for proposals.

  • Align your work with established guidelines and quality standards.

  • Produce high-caliber work on time, every time.

Requirements:

  • 2+ years of experience writing, drafting, and editing proposals for US government or other sophisticated aerospace & defense customers

  • Experience working with cross-functional teams (engineering, BD, contracts, etc.) under tight deadlines

  • Meticulous, proactive, and highly organized

  • Clear communicator whether communication is synchronous or asynchronous, in-person or virtual, written or spoken

  • Solid writing and editing skills

  • Coachable and team-oriented; ability to receive and offer constructive feedback that promotes individual and team success

  • Strong organizational skills and ability to manage multiple concurrent deadlines

  • Direct experience in spacecraft or spacecraft-adjacent markets (Nice to have)

  • Active Top Secret SCI clearance or willing to attain clearance

#LI-JC1

What We Offer For Full-time Employees:

  • Shared upside: Receive equity in Apex, letting you benefit from the work you create

Standard company text repeated across Apex Space's postings is omitted here.

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