Halos Body Cams
City, Belfast
HALOS is an advanced body camera and cloud software scaleup, working with some of the biggest names in security, services, and law enforcement. At HALO, we're passionate about safety and innovation, constantly staying ahead of threats and reducing risk. What sets HALOS apart is not just the cutting edge technology we develop but the culture we've nurtured. Our team embodies openness, transparency, and a "one team" spirit. We're a group of passionate individuals, all working on exciting and impactful projects. Here, you'll find an environment that fosters collaboration, creativity, and a shared sense of purpose. What you'll work on We're building the next generation of AI driven video forensic and evidence analysis tooling for our body worn camera platform. As a Senior Frontend Engineer, you'll help shape the user experience behind complex investigative workflows including video review, transcription, timeline analysis, streaming, and AI assisted insights. This is a hands on engineering role focused on building fast, reliable, and intuitive interfaces for large scale media and data heavy applications. You'll work closely with backend engineers, product, and design to deliver modern React applications that balance performance, usability, and maintainability across mission critical workflows. Day to Day Build React applications using TypeScript, Tanstack Router/Query, and Shadcn UI Design type safe APIs with tRPC spanning frontend and backend Develop AWS Lambda functions and manage infrastructure with AWS CDK Work across React (Vite) and Next.js monorepos using Turbo and pnpm Write tests with Vitest and Playwright Optimize performance (bundle sizes, Core Web Vitals, query caching) Review code, maintain strict TypeScript standards, and ensure security best practices with Zod validation Your Qualifications You're a pragmatic engineer who values simplicity and type safety. You've shipped production apps at scale and understand trade offs between abstraction and clarity. You're experienced intaking features from requirements through implementation to production. Required 5+ years professional TypeScript/JavaScript development Expert React with modern patterns in SPA applications Modern build tools (Vite, Turbo, webpack) and monorepo management Helpful tRPC, Tanstack ecosystem (Query, Router, Table), & Next.js AWS CDK Tailwind CSS, Shadcn/Radix components Zod validation, Playwright E2E testing Performance optimization and Web Vitals experience React Native £70,000 - £80,000 a year Benefits Generous Annual Leave Allowance Competitive salary and commission/bonus package Employer matched pension scheme Learning and Development opportunities Private Health Insurance Cycle to work scheme & Home & Tech scheme through salary sacrifice Regular company events and social initiatives Diversity & Inclusion We're an Equal Opportunity Employer and embrace a diversity of backgrounds, cultures, and perspectives. We do not discriminate on the basis of race, colour, gender, sexual orientation, gender identity or expression, religion, disability, national origin, protected veteran status, age, or any other status protected by applicable national, federal, state, or local law. Don't meet every single requirement? At HALOS we are dedicated to building and promoting a fair and inclusive workplace where everyone can flourish, reach their full potential and truly belong. We recognize that diverse teams foster a more creative and productive environment. So, if you're excited about this role but your experience doesn't perfectly align with the job description, we encourage you to apply anyway. You might just be who we're looking for - for this role, or perhaps another.
HALOS is an advanced body camera and cloud software scaleup, working with some of the biggest names in security, services, and law enforcement. At HALO, we're passionate about safety and innovation, constantly staying ahead of threats and reducing risk. What sets HALOS apart is not just the cutting edge technology we develop but the culture we've nurtured. Our team embodies openness, transparency, and a "one team" spirit. We're a group of passionate individuals, all working on exciting and impactful projects. Here, you'll find an environment that fosters collaboration, creativity, and a shared sense of purpose. What you'll work on We're building the next generation of AI driven video forensic and evidence analysis tooling for our body worn camera platform. As a Senior Frontend Engineer, you'll help shape the user experience behind complex investigative workflows including video review, transcription, timeline analysis, streaming, and AI assisted insights. This is a hands on engineering role focused on building fast, reliable, and intuitive interfaces for large scale media and data heavy applications. You'll work closely with backend engineers, product, and design to deliver modern React applications that balance performance, usability, and maintainability across mission critical workflows. Day to Day Build React applications using TypeScript, Tanstack Router/Query, and Shadcn UI Design type safe APIs with tRPC spanning frontend and backend Develop AWS Lambda functions and manage infrastructure with AWS CDK Work across React (Vite) and Next.js monorepos using Turbo and pnpm Write tests with Vitest and Playwright Optimize performance (bundle sizes, Core Web Vitals, query caching) Review code, maintain strict TypeScript standards, and ensure security best practices with Zod validation Your Qualifications You're a pragmatic engineer who values simplicity and type safety. You've shipped production apps at scale and understand trade offs between abstraction and clarity. You're experienced intaking features from requirements through implementation to production. Required 5+ years professional TypeScript/JavaScript development Expert React with modern patterns in SPA applications Modern build tools (Vite, Turbo, webpack) and monorepo management Helpful tRPC, Tanstack ecosystem (Query, Router, Table), & Next.js AWS CDK Tailwind CSS, Shadcn/Radix components Zod validation, Playwright E2E testing Performance optimization and Web Vitals experience React Native £70,000 - £80,000 a year Benefits Generous Annual Leave Allowance Competitive salary and commission/bonus package Employer matched pension scheme Learning and Development opportunities Private Health Insurance Cycle to work scheme & Home & Tech scheme through salary sacrifice Regular company events and social initiatives Diversity & Inclusion We're an Equal Opportunity Employer and embrace a diversity of backgrounds, cultures, and perspectives. We do not discriminate on the basis of race, colour, gender, sexual orientation, gender identity or expression, religion, disability, national origin, protected veteran status, age, or any other status protected by applicable national, federal, state, or local law. Don't meet every single requirement? At HALOS we are dedicated to building and promoting a fair and inclusive workplace where everyone can flourish, reach their full potential and truly belong. We recognize that diverse teams foster a more creative and productive environment. So, if you're excited about this role but your experience doesn't perfectly align with the job description, we encourage you to apply anyway. You might just be who we're looking for - for this role, or perhaps another.
Halos Body Cams
City, Belfast
HALOS is an advanced body camera and cloud software scaleup, working with some of the biggest names in security, services, and law enforcement. At HALO, we're passionate about safety and innovation, constantly staying ahead of threats and reducing risk. What sets HALOS apart is not just the cutting edge technology we develop but the culture we've nurtured. Our team embodies openness, transparency, and a "one team" spirit. We're a group of passionate individuals, all working on exciting and impactful projects. Here, you'll find an environment that fosters collaboration, creativity, and a shared sense of purpose. We're building a new firmware test automation function for our body worn camera platform (embedded Linux). You'll own the creation of a reliable, scalable daily regression system that pulls the latest firmware builds, deploys them to devices, runs automated suites (including video + streaming validation), and publishes clear results to the team. This is a hands on role combining automation, embedded systems, hardware in the loop, video validation, and streaming. What you'll work on Build the automation foundation Design and implement a maintainable test automation framework for embedded Linux firmware. Build the end to end daily pipeline: fetch latest firmware upgrade/flash devices execute suites collect artifacts publish reports. Make the system robust: retries, device recovery, quarantining flaky devices/tests, clear failure classification. Automate core camera workflows Recording start/stop behaviours, file integrity, metadata correctness, storage handling. Device lifecycle behaviours: reboot, crash recovery, factory reset paths, upgrade/rollback scenarios. Video validation automation (MP4, H.264/H.265) Automate decode integrity and structural checks (e.g., via FFmpeg/ffprobe). Validate stream properties (codec/profile, resolution, fps, bitrate), timestamp sanity, and dropped frame indicators. Produce actionable artifacts (ffprobe JSON, short clips, logs) for triage. Streaming validation automation (RTSP + WebRTC) Automate connect/setup/teardown, stability, reconnection behaviour, and basic performance metrics. Capture and report streaming metrics (e.g., bitrate/FPS, jitter/RTT/packet loss where available) and attach useful artifacts (logs/stats, pcaps as needed). Stress, soak, performance & resilience testing Expand automation beyond functional tests to include repeatable, automatable stress and longevity coverage: Long duration recording (soak), repeated record/stop cycles, rapid user action loops Low storage / near full disk behaviour, rollover, integrity after abrupt shutdown/power loss Battery edge cases (low battery recording), charging transitions, thermal related scenarios (where observable) OTA/upgrade stress (repeat upgrade/downgrade, interrupted upgrade recovery) Network impairments for RTSP/WebRTC (loss/jitter/delay; bandwidth constraints) and reconnection loops Parallel execution across a fleet (multiple devices in CI daily) Define clear pass/fail criteria and trend metrics to reduce noise and catch regressions early. Lab / hardware in the loop ownership Build and maintain test rigs and device control: provisioning, reset/recovery, power cycling, docking workflows. Scale execution across multiple devices running in parallel. Quality signal and collaboration Triage failures, isolate root cause, and write high signal bug reports (repro steps, logs, clips, stats, traces). Partner with firmware engineers to improve testability and reduce flaky failures. Tooling & platform Source control/build environment: Bitbucket (Bitbucket repos; Bitbucket Pipelines or alternatives acceptable) Target platform: Embedded Linux Media + streaming: MP4 (H.264/H.265), RTSP, WebRTC This is a new function: you'll have freedom to propose and introduce tools, with an expectation of maintainability and measurable outcomes. Your Experience Essential Strong experience building test automation for firmware/embedded systems (not only web/app UI). Strong scripting/programming (Python preferred; Bash/Go welcome). CI mindset: can build unattended daily execution with artifacts and easy triage. Comfort in Linux environments (logs, SSH, tooling, system debugging). Solid networking fundamentals (TCP/IP; practical debugging). Highly Valued Video validation using FFmpeg/ffprobe (metadata, decode checks, timing/PTS sanity, regression signatures). Streaming validation using GStreamer (RTSP; ideally WebRTC via webrtcbin or equivalent). Wireshark/tshark experience for network trace triage. WebRTC metrics understanding and automation (browser getStats() or non browser approaches). Nice to Have Camera/video domain experience (body worn, CCTV, dash cams). MP4 container tooling (e.g., MP4Box/GPAC) and compatibility pitfalls. Frame/content validation in automation (OpenCV/PyAV) for frozen/black frames, overlay checks. Network impairment testing Benefits Generous Annual Leave Allowance Competitive salary and commission/bonus package Learning and Development opportunities Private Health Insurance Cycle to work scheme Home & Tech scheme Regular company events and social initiatives The HALOS Hiring Process Here's what we expect the hiring process for this role to be, should all go well with your candidacy. This entire process is expected to take 1-3 weeks to complete and you'd be expected to start on a specific date. Application 30 minute introductory meeting with the recruiting team 45 minute Interview with department hiring manager 30 minute meeting with wider department Offer! Diversity & Inclusion We're an Equal Opportunity Employer and embrace a diversity of backgrounds, cultures, and perspectives. We do not discriminate on the basis of race, colour, gender, sexual orientation, gender identity or expression, religion, disability, national origin, protected veteran status, age, or any other status protected by applicable national, federal, state, or local law.
HALOS is an advanced body camera and cloud software scaleup, working with some of the biggest names in security, services, and law enforcement. At HALO, we're passionate about safety and innovation, constantly staying ahead of threats and reducing risk. What sets HALOS apart is not just the cutting edge technology we develop but the culture we've nurtured. Our team embodies openness, transparency, and a "one team" spirit. We're a group of passionate individuals, all working on exciting and impactful projects. Here, you'll find an environment that fosters collaboration, creativity, and a shared sense of purpose. We're building a new firmware test automation function for our body worn camera platform (embedded Linux). You'll own the creation of a reliable, scalable daily regression system that pulls the latest firmware builds, deploys them to devices, runs automated suites (including video + streaming validation), and publishes clear results to the team. This is a hands on role combining automation, embedded systems, hardware in the loop, video validation, and streaming. What you'll work on Build the automation foundation Design and implement a maintainable test automation framework for embedded Linux firmware. Build the end to end daily pipeline: fetch latest firmware upgrade/flash devices execute suites collect artifacts publish reports. Make the system robust: retries, device recovery, quarantining flaky devices/tests, clear failure classification. Automate core camera workflows Recording start/stop behaviours, file integrity, metadata correctness, storage handling. Device lifecycle behaviours: reboot, crash recovery, factory reset paths, upgrade/rollback scenarios. Video validation automation (MP4, H.264/H.265) Automate decode integrity and structural checks (e.g., via FFmpeg/ffprobe). Validate stream properties (codec/profile, resolution, fps, bitrate), timestamp sanity, and dropped frame indicators. Produce actionable artifacts (ffprobe JSON, short clips, logs) for triage. Streaming validation automation (RTSP + WebRTC) Automate connect/setup/teardown, stability, reconnection behaviour, and basic performance metrics. Capture and report streaming metrics (e.g., bitrate/FPS, jitter/RTT/packet loss where available) and attach useful artifacts (logs/stats, pcaps as needed). Stress, soak, performance & resilience testing Expand automation beyond functional tests to include repeatable, automatable stress and longevity coverage: Long duration recording (soak), repeated record/stop cycles, rapid user action loops Low storage / near full disk behaviour, rollover, integrity after abrupt shutdown/power loss Battery edge cases (low battery recording), charging transitions, thermal related scenarios (where observable) OTA/upgrade stress (repeat upgrade/downgrade, interrupted upgrade recovery) Network impairments for RTSP/WebRTC (loss/jitter/delay; bandwidth constraints) and reconnection loops Parallel execution across a fleet (multiple devices in CI daily) Define clear pass/fail criteria and trend metrics to reduce noise and catch regressions early. Lab / hardware in the loop ownership Build and maintain test rigs and device control: provisioning, reset/recovery, power cycling, docking workflows. Scale execution across multiple devices running in parallel. Quality signal and collaboration Triage failures, isolate root cause, and write high signal bug reports (repro steps, logs, clips, stats, traces). Partner with firmware engineers to improve testability and reduce flaky failures. Tooling & platform Source control/build environment: Bitbucket (Bitbucket repos; Bitbucket Pipelines or alternatives acceptable) Target platform: Embedded Linux Media + streaming: MP4 (H.264/H.265), RTSP, WebRTC This is a new function: you'll have freedom to propose and introduce tools, with an expectation of maintainability and measurable outcomes. Your Experience Essential Strong experience building test automation for firmware/embedded systems (not only web/app UI). Strong scripting/programming (Python preferred; Bash/Go welcome). CI mindset: can build unattended daily execution with artifacts and easy triage. Comfort in Linux environments (logs, SSH, tooling, system debugging). Solid networking fundamentals (TCP/IP; practical debugging). Highly Valued Video validation using FFmpeg/ffprobe (metadata, decode checks, timing/PTS sanity, regression signatures). Streaming validation using GStreamer (RTSP; ideally WebRTC via webrtcbin or equivalent). Wireshark/tshark experience for network trace triage. WebRTC metrics understanding and automation (browser getStats() or non browser approaches). Nice to Have Camera/video domain experience (body worn, CCTV, dash cams). MP4 container tooling (e.g., MP4Box/GPAC) and compatibility pitfalls. Frame/content validation in automation (OpenCV/PyAV) for frozen/black frames, overlay checks. Network impairment testing Benefits Generous Annual Leave Allowance Competitive salary and commission/bonus package Learning and Development opportunities Private Health Insurance Cycle to work scheme Home & Tech scheme Regular company events and social initiatives The HALOS Hiring Process Here's what we expect the hiring process for this role to be, should all go well with your candidacy. This entire process is expected to take 1-3 weeks to complete and you'd be expected to start on a specific date. Application 30 minute introductory meeting with the recruiting team 45 minute Interview with department hiring manager 30 minute meeting with wider department Offer! Diversity & Inclusion We're an Equal Opportunity Employer and embrace a diversity of backgrounds, cultures, and perspectives. We do not discriminate on the basis of race, colour, gender, sexual orientation, gender identity or expression, religion, disability, national origin, protected veteran status, age, or any other status protected by applicable national, federal, state, or local law.