R

Relay

Enterprise PTT platform with GPS tracking

Software Engineer Intern - Device Team

Summer 2027
No salary listed
Internship
Bachelor's
Raleigh, NC, USA
In PersonFull-time in-office work is required in Raleigh during the summer.
Software Engineering

About the job

Requirements
  • Currently enrolled in Computer Science or a related technical field with a GPA of 3.5 or above.
  • Strong proficiency in C, Java, or Kotlin.
  • Experience in embedded systems programming, such as programming NRF- or ST-based products running Zephyr, ThreadX, or Linux, is acceptable.
  • Experience programming Linux at or below the POSIX API layer, typically in C, C++, or Rust, is acceptable.
  • Solid experience with scripting languages such as Bash or Python is acceptable.
  • Comfort with desktop and server Linux distributions.
  • An analytical and methodical approach to problem-solving.
  • Strong communication skills and a habit of documenting what you build.
  • Ability to manage multiple workstreams and self-prioritize.
  • Exposure to Agile development practices.
  • Genuine curiosity and drive to learn.
Responsibilities
  • Fix bugs and build new Android features spanning application development and operating-system-level programming.
  • Work with Linux Kernel components, Java-based frameworks, shell scripts, and C, C++, or Rust daemons as needed.
  • Work below the Android layer on operating-system tasks and hardware interfaces.
  • Develop new embedded products or microcontroller firmware that runs inside or alongside existing Relay devices.
  • Contribute across the full device stack, from application-layer features to operating-system and hardware integration.
Desired Qualifications
  • Android or Android Open Source Project systems programming experience.
  • Familiarity with IP networking concepts, including HTTP and TCP/UDP sockets.

About the company

Relay provides a digital Push-to-Talk (PTT) communication platform for active workers in the enterprise market, replacing traditional walkie-talkies. It works over mobile and desktop devices with a voice interface, allowing users to press a button and send live voice messages while also sharing GPS location and issuing emergency alerts. Relay differentiates itself by removing range limits and security concerns of radios through a cloud-based network, unifying voice, location, and alerts across devices, and offering software integrations and ongoing feature updates via a subscription. Its goal is to improve workforce efficiency and safety by delivering reliable, scalable, and easy-to-use communication for teams in dynamic work environments.

Company Size

501-1,000

Company Stage

Series C

Total Funding

$84M

Headquarters

Raleigh, North Carolina

Founded

2015

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Simplify Jobs

Simplify's Take

What believers are saying

  • Relay raised $36 million on September 30, 2026, funding hiring and global expansion.
  • Relay now serves about 10% of the Fortune 500 across industrial, hospitality, and healthcare.
  • TeamTranslate and 35-language support address frontline labor shortages, safety incidents, and shift miscommunications.

What critics are saying

  • Zello, Voxer, and AT&T Enhanced Push-to-Talk commoditize messaging before Relay’s AI monetizes.
  • International Paper-led financing signals customer concentration; losing one anchor account dents 2027 growth.
  • If integration-heavy hardware deployments stall, Relay becomes a niche device vendor, not infrastructure.

What makes Relay unique

  • RelayM launched June 17, 2025, shrinking rugged frontline hardware while keeping safety and translation.
  • International Paper led Relay’s September 30, 2026 round, validating industrial workflow credibility.
  • Relay spans hardware, AI translation, GPS, panic alerts, and enterprise integrations in one stack.

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Benefits

  • Health, dental & vision
  • PTO
  • Paid sick leave
  • 401(k) with 3% match
  • Paid parental leave
  • Connection & wellness credit
  • Equipment & tools
  • Flexible work environment
  • Free snacks & fun times

Growth & Insights and Company News

Headcount

6 month growth

-1%

1 year growth

-1%

2 year growth

0%
PR Newswire
Oct 13th, 2026
Relay and Celona partner to improve worker safety in industrial operations by reducing connectivity dead zones.

Relay and Celona partner to improve worker safety in industrial operations by reducing connectivity dead zones. Oct 13, 2026, 08:00 ET Celona's private 5G LAN extends connectivity for the Relay system of action for physical operations in industrial environments RALEIGH, N.C. and CAMPBELL, Calif., Oct. 13, 2026 /PRNewswire/ - Relay and Celona today announced they are partnering to deliver more consistent communications for frontline workers to improve their safety and efficiency. With Celona's Orion platform providing private 5G and Wi-Fi across large industrial campuses, workers using the Relay system of action for physical operations can remain reliably connected throughout their facilities, even in challenging wireless environments. Industrial facilities are among the most difficult radio environments on earth. Locations can be remote, campuses can span millions of square feet, and dense metal in refineries, manufacturing facilities, and warehouses can hinder radio propagation, leaving public cellular coverage patchy. And Wi-Fi's lower transmit power can make it unreliable for mobile workers on forklifts traversing large manufacturing facilities and working in outdoor yards. The result is a proliferation of connectivity "dead zones", where communication via traditional two-way radios - the most common mode in these facilities - can be compromised, leaving workers vulnerable to safety risks and operations to an incomplete record. For enterprises rolling out connected worker programs, those gaps create a ceiling on what any frontline technology can deliver. Celona addresses these challenges by delivering enterprise-grade private 5G alongside Wi-Fi as part of a converged wireless platform that operates entirely within the organization's network. Relay applies Celona's private 5G to log and organize spoken observations from frontline teams in challenging connectivity environments and turn them into action in the systems an enterprise already runs. Since a worker wearing protective equipment in a loud manufacturing facility cannot easily type instructions into common digital workplace transformation applications, Relay serves insights from their spoken observations and instructions through the interface they already use: a ruggedized, push-to-talk radio. "Reliable connectivity is foundational to worker safety and productivity, particularly across large industrial environments where traditional wireless technologies can struggle," said Puneet Shetty, SVP of Product and Field Engineering at Celona. "Together with Relay, we're extending the benefits of converged wireless to frontline workers, helping maintain critical communications across even the most challenging areas of industrial facilities." The companies will deliver continuous coverage across the entire industrial footprint, and the operation's record of the work happening in it. Relay devices have been thoroughly tested on Celona's network and are ready to work out of the box. Real-time translation across 35 languages, leveraging AI models tuned specifically for manufacturing, keeps multilingual crews coordinated, while panic alerts and location context help keep them safe. The observations, handoffs, and judgment calls that teams generate every shift become part of the record instead of evaporating at the end of it. "The most important piece of equipment a frontline worker carries is the ability to reach someone. In a plant that's loud, hazardous, and spread across acres, that's the difference between a near-miss and an incident," said Ibraheem Khalifa, Principal Product Manager, Relay. "Our partnership with Celona helps ensure frontline teams remain not just productive but also safe, no matter where in the facility they're working." Relay and Celona solutions are currently being used in combination at customer sites in the food manufacturing industry. To learn more about the partnership and how the companies are collaborating to support critical wireless communications while also enabling greater operational insights, watch the video here. About Relay Relay is the system of action for physical operations, serving the 80 percent of the world's workforce that doesn't sit behind a desk - the frontlines. Relay captures what the frontline says and does, and turns it into action in the systems they already run, helping teams unlock operational intelligence and improve their communications, safety, and productivity. Relay's system combines its powerful software and AI platform with purpose-built next-gen hardware, to better connect frontline teams, overcome language barriers with support for 35 languages, and deliver rapid ROI for its customers. Relay is used by nearly 10 percent of the Fortune 500, and processes over one billion data points weekly from the nearly 10,000 sites it's deployed across in sectors like manufacturing, hospitality, healthcare, and more. For more information, visit relaypro.com. About Celona Celona is the converged wireless foundation for the AI-native enterprise. The company unifies private 5G, Wi-Fi, public cellular and satellite into a single enterprise-controlled platform that delivers secure, deterministic wireless connectivity for AI agents, autonomous machines, intelligent devices and the people who work alongside them. Leading enterprises across manufacturing, logistics, healthcare, energy, mining and other industries rely on Celona to power mission-critical operations in some of the world's most demanding environments. To learn more, visit celona.io. How can push-to-talk radios stay connected across large industrial facilities where traditional two-way radios and Wi-Fi fall short? Relay's push-to-talk radios run on cellular, Wi-Fi, and now private 5G through Relay's partnership with Celona, so crews can stay connected even in the hardest-to-reach parts of a large industrial facility. Dense metal and huge footprints leave traditional two-way radios, public cellular, and Wi-Fi with dead zones, and legacy radios may depend on line of sight and repeaters for their range. The Celona's Orion platform delivers private 5G and Wi-Fi that stays entirely within the organization's network, and Relay's ruggedized radios run on it out of the box, extending coverage into these difficult but critical areas. Which push-to-talk systems combine panic alerts and real-time location for frontline worker safety? Relay includes panic alerts and location context on its push-to-talk radios, so when a worker calls for help, responders know who needs it and where to go. Those alerts are only as dependable as the connection behind them, which is why Relay partnered with Celona: Celona Orion's private 5G and Wi-Fi help alerts get through across processing plants and manufacturing facilities, including areas where public cellular and Wi-Fi coverage has been patchy. How can manufacturers log knowledge from the shop floor? Relay lets frontline workers log what they see just by speaking into their radio. Workers in protective gear or loud areas can't easily stop to type into a form on a screen, so Relay records their spoken observations and turns them into action in the systems the company already uses. Celona's private 5G and Wi-Fi keep that information flowing from every corner of the facility. Media contacts: SOURCE Relay Inc.

Business North Carolina
Oct 1st, 2026
Relay raises $36M on big plans, CEO Chuang says.

Relay raises $36M on big plans, CEO Chuang says. 10/01/2026 Raleigh's smart walkie-talkie maker Relay expects to hire as many as 100 workers and expand globally after raising $36 million in financing, the company said this week. Relay uses artificial intelligence incorporated into its web of services, which include offering translations in 35 languages. The technology helps link a wide variety of users who work for about 50 companies in the Fortune 500, ranging from steel workers to restaurant hosts. The company launched in 2015 as a spinoff from communications provider Republic Wireless. "We needed the funding to fuel our rapid growth," says CEO and co-founder Chris Chuang. With one push, users are connected to back offices by voice and with location information, making the radios useful in emergencies or when dealing with customers who speak different languages. Relay has 300 employees, including 270 in the Raleigh area. It is expecting to add another 50 over the next few months, according to Chuang. Plans call for more "go-to-market" support and added product functions, he adds. Relay has cracked the Inc. 500 list for three consecutive years. Chuang wouldn't disclose revenues but says Relay is nearing profitability. Investors include Relay's customer International Paper, which was the lead investor, with other backing from Cerity Partners, Harmonic Growth Partners, Thayer Investment Partners and earlier backers G2 Venture Partners and Wind River Ventures. Relay is the latest in a series of wireless technology ventures for Chuang, who was a senior leader at Motricity and Bandwidth, then launched and sold Republic Wireless and spun off Relay as a separate company. Relay has now raised $90 million, including $42 million in 2024. PitchBook has estimated its valuation at about $370 million, Axios Raleigh reported.

DevCuration
Sep 30th, 2026
Relay raises $36M for frontline operational intelligence.

Relay raises $36M for frontline operational intelligence. International Paper is leading a $36M investment in Relay, one of the frontline-technology vendors already working inside the industrial environments the packaging company knows best. Relay announced the financing on September 30, 2026, with new capital from clients of Cerity Partners, Harmonic Growth Partners, and Thayer Investment Partners. Existing investors G2 Venture Partners and Wind River Ventures also increased their investments. The Raleigh company says the round brings its total capital raised above $90M. Relay did not disclose a formal round label or current valuation, which makes the lead investor more informative than a label would have been: International Paper is moving from customer evidence to capital commitment while Relay tries to turn voice, location, and shift activity into usable operational intelligence. What happened. Relay's September 30 announcement describes a significantly oversubscribed $36M financing. International Paper led the investment, while Cerity Partners clients, Harmonic Growth Partners, and Thayer Investment Partners joined as new investors. G2 Venture Partners, which led Relay's 2024 Series B, and Wind River Ventures put in additional capital. Relay says the money will expand its software and AI platform, including an insights and agentic layer that will let teams query shift data and act on it. The plan also covers worker-safety capabilities, integrations with enterprise systems, next-generation frontline hardware, expansion across industrial and hospitality markets, and hiring in product and go-to-market roles. Axios Raleigh reports that Relay has about 300 employees and expects to add roughly 100 people over the next year. The product starts where screens become awkward. Relay builds a familiar push-to-talk experience around connected hardware, cloud communications, real-time translation, location awareness, safety alerts, automated workflows, and integrations. That combination matters in factories, hotels, hospitals, casinos, warehouses, and other environments where a worker may be moving, wearing gloves, responding to noise, or handling a problem that will not wait for a form to load. The company's argument is that enterprise software has digitized plenty of management work while leaving frontline context trapped in speech. Relay's survey of 500 U.S. manufacturing professionals, conducted by Dynata, found that 57% said their most important operational communication happens aloud and in person. Only 17% said almost everything workers notice and flag reaches a system, log, or formal report, while 79% said communication breakdowns cause delays, rework, or missed handoffs at least a few times each month. Those figures are company-sponsored research, but they frame the workflow Relay is trying to own. Relay gives workers the behavior they already understand, then tries to make the exhaust useful. A radio message can become a translated communication, a safety record, a location-aware alert, or structured shift data that managers and software systems can revisit. The financing is aimed at pushing that design further, especially through an AI layer that can answer questions about shift activity and connect the answer to an action. Why a customer-led round matters. International Paper is not approaching Relay as an investor learning the product from a deck. Keith Townsend, Group Vice President for Packaging Solutions North America, said in the funding release that Relay had delivered dependable communication in loud industrial environments and helped improve shift transitions, operating processes, safety responses, maintenance alerts, and connections into operational systems. That does not turn one customer's experience into universal proof, but it changes the investment logic. A corporate customer can bring requirements, deployment friction, procurement knowledge, integration needs, and operational consequences into the capital relationship. Relay gets money from an organization that understands what happens when communication technology fails during physical work, and International Paper gets a closer seat at a vendor it considers part of a modern industrial stack. The rest of the syndicate broadens that market signal. Thayer brings hospitality relationships, while Harmonic specializes in expansion-stage companies and Cerity's venture practice works with corporate investment programs. Returning investors G2 and Wind River are backing another phase after Relay's $13M Series A in 2023 and $35M Series B in 2024. Scale has moved the assignment. Relay says its platform now reaches hundreds of thousands of frontline workers, nearly 10% of the Fortune 500, and almost 10,000 sites. The company reports processing more than 1B data points each week, supporting 35 languages, and maintaining 99% gross revenue retention and 130% net revenue retention among enterprise customers. These metrics have not been independently audited in the sources reviewed, but they describe a business whose challenge is moving beyond device replacement. Chris Chuang, Relay's CEO and co-founder, is positioning the company as a system of action for physical operations. The phrase earns its meaning only if Relay can connect a worker's fast, spoken observation to a reliable record and then to the enterprise system where maintenance, staffing, safety, or production decisions are made. Hardware durability, network reliability, translation quality, permissions, data governance, and integration depth all sit inside that promise. What the $36M has to prove. The easy version of the story is that AI is finally reaching frontline workers. The harder and more useful version is that Relay must preserve the speed and simplicity of a radio while adding enough structure for software to understand what happened without creating more work for the person holding the device. International Paper's participation gives Relay a demanding place to keep testing that proposition. As the company adds people, hardware, integrations, and an agentic layer, its most important output will not be the number of conversations captured. It will be whether a spoken warning, handoff, repair note, or safety signal reaches the right system soon enough to change the shift that produced it.

PR Newswire
Sep 30th, 2026
Relay raises $36M led by International Paper to digitise frontline operations with AI

Relay, a system for physical operations, has raised $36 million in new funding, bringing its total capital to over $90 million. The oversubscribed round was led by International Paper, with participation from Cerity Partners, Harmonic Growth Partners, and Thayer Investment Partners. The North Carolina-based company serves frontline workers who don't work at desks. Its platform combines cloud communications, AI, real-time translation, and automated workflows in hardware designed for industrial environments. Relay works with approximately 10% of the Fortune 500, serving hundreds of thousands of frontline workers across manufacturing, hospitality, and healthcare sectors. The company maintains 99% gross revenue retention and 130% net revenue retention among enterprise customers. The funding will accelerate platform development, worker safety solutions, enterprise integrations, and market expansion. Relay processes over one billion data points weekly from nearly 10,000 deployed sites.

PR Newswire
Jun 17th, 2025
Relay Unveils Relaym: 35% Smaller Device To Disrupt Traditional Hospitality Communications

An engineering marvel, RelayM offers comms and safety features, live translation of 30+ languages, and a market-leading approach to reliable connectivity, virtually eliminating dead zones.RALEIGH, N.C., June 17, 2025 /PRNewswire/ -- Relay is proud to announce the launch of RelayM™, our latest breakthrough in frontline communication technology, debuting at HITEC 2025. This powerful new addition to our product portfolio bridges the gap between Relay+™ and RelayX™. Based on the RelayX design, RelayM delivers enterprise-grade performance in a form factor that is 35% smaller, making it one of the smallest 5G devices in the market.Engineering Excellence in a Compact DesignRelayM is an engineering marvel. We challenged ourselves to deliver the core performance and functionality of RelayX in a dramatically streamlined package – optimized for the unique demands of hospitality environments. While RelayM is compact, it still integrates critical communication, panic, and location awareness into a single, simplified device. Building on the success of Relay+, RelayM offers an evolved design that enhances usability and effectiveness in day-to-day hospitality operations