How to Run a LinkedIn Outreach Campaign to Radiation Shielding Companies Hiring Engineers (2026)

Quick Answer: You can build a list of radiation shielding companies hiring engineers in Origami (1,000 free credits, no card) and then, instead of exporting it to another tool, launch a LinkedIn outreach campaign right where the list lives—Origami’s built-in LinkedIn sequencer handles the full workflow. Find engineers, enrich contacts, qualify leads, craft messages, send connection requests, follow up, and track replies—one platform, no CSV ping-pong. This guide gives you the exact steps, plus a 3-touch sequence written for radiation shielding engineering hiring managers, that you can copy and send today.

---

You followed the how to build a list of Radiation Shielding Companies Hiring Engineers parent guide and now have a table sitting in Origami filled with company names, job titles like “Principal Radiation Shielding Engineer” or “Director of Nuclear Safety,” verified emails, and LinkedIn profiles. The data is fresh, pulled straight from the live web by Origami’s AI agent after you described your ideal prospect in plain English.

Now the real work starts: turning those names into conversations that end in a booked call, a submitted candidate, or a signed contract. And you’re not going to do it by copying contacts into a spreadsheet, uploading them somewhere else, and praying your sequences don’t break. You’ll do it from the same place you built the list—Origami. Its built-in LinkedIn sequencer is included on all paid plans (the sending is free; you only pay for credits to enrich leads), and it connects the list-building and outreach steps so tightly that you never lose context on why you’re messaging someone.

This post walks through the whole process, from scrubbing your list so only real opportunity survives, to writing and launching a 3-touch LinkedIn sequence specific to radiation shielding companies hiring engineers, to tracking replies and iterating. No theory. No “In today’s competitive landscape.” Just the buttons you click, the words you send, and the numbers you should expect.

---

Step 1: Build the list in Origami (or confirm the one you already have)

If you haven’t built the list yet, or you want to compare against a fresh pull, the exact prompt you’d type into Origami is:

Find radiation shielding companies in the United States that are currently hiring engineers, especially those working on nuclear power plant design, medical radiation therapy equipment, and space applications. Include companies posting jobs for radiation shielding engineers, health physicists with shielding design experience, and nuclear safety engineers. Exclude pure consulting firms with fewer than 10 employees.

You’re describing your ideal customer in English, not writing Boolean strings. Origami’s agent searches the live web—job boards like Indeed and LinkedIn Jobs, company career pages, industry publications, trade show exhibitor lists, and engineering firm databases—then chains together data sources, enriches each contact, and hands you back a clean prospect list. Every row includes:

• Full name
• Verified email (business, not personal)
• LinkedIn profile URL
• Current title and company
• Company size, industry, and a few tech-stack signals
• A qualification score based on how tightly the person matches your prompt

The free plan gives you 1,000 credits (no credit card), enough to build a solid test list. Paid plans start at $29/month and give you more credits plus access to the LinkedIn sequencer. But even on free, you can export the list, hand it to a human, or pair it with a separate sequencer—though I’ll argue you shouldn’t, because Origami’s native sequencer keeps everything together.

For the rest of this guide, I’m assuming you have a list of 200–500 contacts (a typical first pull for a niche like this) sitting in your Origami workspace.

---

Step 2: Refine and qualify—cut the noise before it costs you connects

Your raw list will be good, but not perfect. You’ll see some contacts that are only tangentially related: maybe a recruiter from a staffing agency that happens to mention “radiation,” or an engineer who worked on shielding 10 years ago but now does software. Before you burn LinkedIn connection requests and sequencer credits, do a 20-minute cleanup.

In Origami, open your list. Use the column filters:

• Title filter: Keep anything with “radiation” + “engineer,” “health physicist,” “shielding design,” “nuclear safety,” “RSO” (Radiation Safety Officer), “ALARA specialist,” and HR titles paired with those keywords (e.g., “Engineering Recruiter – Nuclear”). Remove pure sourcing specialists at agencies unrelated to radiation.
• Company size: For engineering hiring, focus on companies with 50–500 employees (where you’ll find dedicated shielding groups) or larger firms with a nuclear division (500–5,000). Solo operations rarely have the authority or budget to hire multiple engineers quickly.
• Location: If you’re placing candidates who can work in specific geographies (e.g., near nuclear plants in the Southeast, or around medical device hubs like Chicago or Boston), filter by state or metro area.
• Industry tags: Origami tags companies with descriptors like “Nuclear Power,” “Medical Devices,” “Defense & Space,” “Engineering Services.” Deselect anything that looks like a consumer product company or pure IT.

After filtering, select all the keepers and click “Qualify.” Origami will let you manually mark prospects as “Interested,” “Not a Fit,” or “Needs Review.” This is also where you can add internal notes. For example, if you see a company that just posted three shielding engineer roles in the last week, stick a note: “High priority—multiple openings, posted 3/12/2026.”

What “qualified” looks like for this audience:

• The contact is either a hiring manager (Director of Engineering, Lead Shielding Engineer) or a technical recruiter inside a company that designs, builds, or operates radiation shielding systems.
• The company clearly works on projects where radiation shielding is core—reactor design, medical linacs, space hardware, radiological dispersal systems, etc.
• The company has posted an engineering role within the last 60 days, or its career page shows an open “Radiation Shielding Engineer” req.
• The contact’s LinkedIn profile mentions shielding, MCNP/FLUKA, ALARA, or NRC regulations.

Aim for a final qualified list of 80–150 contacts. That’s more than enough to run a meaningful LinkedIn campaign without getting flagged for spam. If you have more, split them into two batches and sequence them a week apart.

---

Step 3: Create the LinkedIn sequence (with exact copy you can steal)

Now the part most people overthink: what to actually say. Origami gives you two ways to load messages into its sequencer. Both start after you select your qualified contacts and hit “Create Sequence.”

Option 1: Paste your own templates

If you have battle-tested messaging that works for your niche, you can manually write a 3-touch sequence directly in Origami. You set the delay between touches—Day 1 (connection request), Day 3 (first follow-up), Day 7 (final touch)—or whatever cadence you prefer. You paste each message into a box, and Origami automatically personalizes them with fields like , , , and any custom enrichment data (e.g., , ``). You’re in full control of the copy.

Option 2: Let Origami’s AI agent write it

Alternatively, you can describe the approach you want—tone, angle, offer—and Origami’s agent will generate a 3-day LinkedIn sequence personalized to each lead’s profile. The agent pulls from the enriched data: the lead’s title, company description, recent LinkedIn activity (if available), and the reason Origami flagged them as a match. The result is a set of messages that feel like you researched every person individually. You can review and edit before launch, or approve as-is. This is the most time-efficient path, especially when you’re running campaigns for multiple niches.

For this guide, I’m giving you a sequence I’ve refined across dozens of engineering outreach campaigns. It’s written for a recruiter staffing radiation shielding engineers, but you can tweak it if you’re selling a product or service instead. Each message is 50–100 words, direct, and written to get a reply, not a philosophical discussion.

The 3-touch LinkedIn sequence for radiation shielding companies hiring engineers

Day 1 – Connection request (note included)

When you send a connection request on LinkedIn, you get 300 characters for a note. Here’s exactly what to write:

Hi —I help radiation shielding firms find hard-to-source engineers. Saw has open roles in that area. Would love to connect and compare notes on the shielding talent market. No pitch, just industry chat.

That’s 239 characters. It mentions their specific pain (hard-to-source engineers), your relevant focus, and a no-pressure reason to connect.

Day 3 – First follow-up (sent after they accept your connection)

This message goes out 2 days after they accept. The delay gives them space; don’t message immediately on Day 2 unless they engaged with your profile. The message:

Thanks for connecting, . I know how tricky it is to find engineers who can do MCNP/FLUKA simulations, design layered shielding for neutron and photon fields, and actually understand ALARA requirements inside a regulatory framework. Over the past year, I’ve placed a dozen engineers with exactly that skill set—across nuclear, medical, and space. If you’re open to it, I can send you a few profiles (no contact details locked in) of candidates who are actively looking and could be a fit for . Worth a look?

This message is 99 words. It names three specific technical skills (MCNP/FLUKA, layered shielding for neutron/photon fields, ALARA) to prove you know the space. It offers a no-risk preview of candidates. The call-to-action is a simple yes/no question.

Day 7 – Final message (soft close)

If they haven’t replied by Day 7, send one last message. No guilt, no desperation. Just a door left open.

Hope all is well, . I’ll leave you alone after this—but just in case: when you need a radiation shielding engineer who can start inside four weeks, I keep a bench of pre-vetted candidates across radiation shielding design, health physics, and nuclear safety. No pressure to reply now. If something comes up down the road, I’m easy to find. Cheers, [Your Name]

This is 70 words. It removes pressure, mentions a concrete timeframe (four weeks) to signal speed, and names the three candidate categories again. The signature “easy to find” implies you’re a known entity in the space.

Why this sequence works for this audience:

• It doesn’t waste time explaining what radiation shielding is. These people live it every day.
• It uses technical shorthand (MCNP/FLUKA, ALARA, neutron/photon fields) that signals you’re not a generic recruiter.
• It offers real value (candidate profiles) on Touch 2, not a pitch to have a call.
• It closes politely and leaves a bookmark for the future, which matters when hiring timelines stretch across months.

If you’re not a recruiter but instead sell engineering software, shielding materials, or consulting services, you can adapt the value prop. For example, a materials vendor might replace Touch 2 with: “When I looked at ’s recent projects, the shielding requirements for neutron streaming looked intense. We supply borated polyethylene and high-density concrete that cut installation time by 30% on similar jobs. Happy to share specs if it’s relevant.” Keep the same cadence and length.

---

Step 4: Send the sequence directly from Origami—and track everything in one place

Once your messages are loaded and reviewed, you hit “Launch.” No CSV export. No synchronizing with another tool. Origami’s built-in LinkedIn sequencer sends the connection requests and follow-up messages automatically from your connected LinkedIn account (you grant Origami permission via official API or secure browser session—your credentials are never stored). The sequencer respects the delays you set and stops automatically when a prospect replies, so you never send a “Just following up for the 8th time” message after a meeting is already booked.

Here’s what happens after you launch:

• Sending: Connection requests go out on Day 1 (with the note you wrote). If a prospect accepts, they enter the sequence. If they don’t accept within 7 days, the system skips them (you can adjust this window).
• Tracking: Origami’s dashboard shows you opens (if enabled by LinkedIn settings), clicks, and replies in real time. Next to each activity row, you still see the prospect’s enriched profile—their title, company size, tech tools—so you know exactly why you reached out, even weeks later. No more searching your CRM to remember who they are.
• Replies: When a prospect replies, the sequencer immediately un-enrolls them. You’ll see a notification and can jump into a manual conversation. The system also labels the reply by sentiment (positive, neutral, negative) if you want, but I recommend reading it yourself first.
• List health: While you’re monitoring replies, you can also see which contacts haven’t accepted, which are pending, and which have bounced. If an email is old and the LinkedIn profile isn’t found, Origami flags it. You can then remove or re-enrich those contacts without restarting the campaign.

The big advantage: You built the list in Origami. You’re sending from Origami. You’re tracking in Origami. No context switching. This is especially powerful when you’re running multiple campaigns (e.g., radiation shielding companies, nuclear medicine facilities, space hardware contractors) because you can see side-by-side which audiences respond and which messages perform best, all in one dashboard.

What response rates should you expect?

For a niche audience like radiation shielding companies hiring engineers, your connection request acceptance rate should land between 30% and 45% if you’ve filtered well and your note is relevant. The message response rate on Touch 2 (among those who connect) typically falls between 15% and 25% because the specific technical language resonates. Touch 3 catch-all replies will be lower—5% to 10%—but they often come from busy managers who finally got around to you. Overall, expect 3 to 8 qualified conversations per 100 contacts you target. That’s enough to fill a sales pipeline if you’re a solo recruiter or small agency.

If you’re below those numbers after 100 contacts, don’t immediately blame the list. First, check the sequence copy. Are you using terms that might be too generic? Swap in more radiation-specific phrases. Second, look at your connection request note: if acceptance is low, the note might be too salesy. Test a version that simply says, “Admire the shielding work does—would love to follow your team’s updates.” Sometimes a softer approach opens the door better for a technical audience.

If acceptance is high but Touch 2 response is low, your value prop might be off. For engineering hiring managers, the promise of pre-vetted, immediately available candidates with niche skills is strong. If you’re selling a product, make sure you’re tying it to a measurable engineering metric (fewer design iterations, faster shielding verification, regulatory compliance faster). Test small variations and iterate weekly. Origami lets you duplicate a sequence, tweak one message, and A/B test against a fresh segment of leads.

---

One workflow, from list to reply

Most people treat list-building and LinkedIn outreach as two separate jobs: research in one tool, sequences in another, tracking in a spreadsheet. Origami collapses that. After you describe your ideal radiation shielding engineering hire, the AI does the heavy work of finding and enriching contacts, and the sequencer turns them into conversations—all while you monitor from a single dashboard. You never have to wonder, “Why did I reach out to this person again?” because the answer sits right next to their reply.

If you haven’t built your list yet, start with the parent guide, then come back here and plug in the sequence. If you already have a list, open Origami, paste your leads, and get them into the sequencer. The messaging backbone is here; adjust it to your voice and launch. The companies looking for shielding talent aren’t going to find themselves.