Archangel Autonomy

We're looking for a reliable, experienced Security & Infrastructure Engineer (3-7 years in IT, cloud and security) to join our growing defence AI company in central Oxford, helping our teams stay productive, cyber compliant and protected as we scale. We develop and deliver mission critical uncrewed aircraft subsystems, so reliability, problem solving skill and adaptability really matter. This role sits at the intersection of IT operations, cloud infrastructure, and cyber security. You will work closely with a fractional Security Lead, deputy CTO, COO, IT manager plus other external CISO and consultants as relevant. You will be supporting delivery of a structured security programme while ensuring day to day systems remain secure, reliable, and efficient. This is a hands on role suited to someone who enjoys both solving operational IT issues and implementing modern security controls in a fast paced, high assurance, advanced environment. You will play a key role in transitioning the company toward a security first infrastructure model. How you will make an impact Security & Infrastructure: Implement and maintain secure, scalable IT and cloud infrastructure; Support rollout of Microsoft security ecosystem (Defender, Intune, Entra, Purview, etc.); Configure and maintain identity, access control, and endpoint security; Improve logging, monitoring, and alerting capabilities. Security Programme Delivery: Support implementation of Cyber Essentials Plus, ISO27001 aligned controls, Defence security requirements (e.g., DEFSTAN aligned environments); help maintain diverse assets globally (Linux, Windows, Mac), security control policies and procedures, continuous security improvements. IT operations: Administer and support Microsoft 365, Google Workspace, cloud infrastructure (AWS/Azure), internal tools (Slack, Docker, etc.), providing incident response, troubleshooting and technical service delivery. Engineering & DevOps Support: Work with engineering teams to deliver secure development environments, AI / embedded device security, secure lab and flight trials environments. To succeed in this role, you must have: 3-7 years' hands on experience in IT, cloud infrastructure and security with potential to grow into security leadership Experience administering cloud environments (AWS, potentially Azure /hybrid/ local/ others) Experience with Microsoft 365, Google Workspace, Docker, Slack, VMs, AI LLM tools Experience with security frameworks such as ISO27001, NIST Experience managing Linux, Windows, MacOS environments using endpoint management tools such as Intune Experience with networking tools such as Cloudflare, Unifi or Cisco Experience with Defender XDR, Microsoft Purview, Sentinel or similar cyber data security tools Competency in incident response, investigation, vulnerability remediation Ability to obtain and maintain UK Security Check clearance Willingness to work on site 4 days per week Alignment with our ways of working: clear & concise communication; structured thinking to bring clarity from incomplete or imperfect information; high organisation, capacity and ownership to juggle multiple priorities; commercial awareness to apply judgment, not just follow procedures; growth mindset and positive energy. It is a plus if you also have: Experience in designing IT systems from the ground up Relevant security qualifications or certifications eg CISSP Competency in DevOps, embedded systems security Experience in aerospace, defence, or regulated environments Familiarity with DEFSTAN style assurance requirements Experience in tech startups working with engineering teams, requirements, engineering devices (IoT, AI cameras, embedded devices ) and environments Military Background By joining us, you'll have: The ability to make a measurable difference in the creation of cutting edge technology in a rapidly growing start up Fast paced environment with a world class, positive, talented, and high achieving team Forward thinking, supportive culture with company retreats and strategic alignment World class growth opportunities and training resources including self development days, an opportunity for drone pilot training Merit based compensation 5% employer pension contribution 25 days holiday + UK bank holidays Medical Insurance Relocation Support package Team socials A variety of perks that are evolving: Free Monday team lunch, Cycle2work scheme, annual subscription allowance Security clearance: Due to the sensitive nature of some of our work, it would be beneficial for candidates to be able and willing to obtain and maintain the necessary security clearance for this role. Location This is an office based role in Oxford. You'll work alongside leading engineers, AI specialists, and industry pioneers, contributing directly to cutting edge advancements in autonomous technology.

Archangel Autonomy in Oxford is searching for a Security & Infrastructure Engineer with 3-7 years of experience in IT and cloud security. You will support the implementation of security frameworks while maintaining daily operations. Ideal candidates will have hands-on experience with cloud environments and security tools. This is an office-based role requiring alignment with a security-first culture and the ability to obtain UK security clearance. Competitive perks include medical insurance, training resources, and a pension contribution.

Are you a detail-oriented Lead Systems Engineer passionate about autonomous and uncrewed systems like drones? About Us At Archangel Autonomy, we deploy AI and robotics to protect service personnel, critical infrastructure, and first responders in large, remote areas. Our mission is to make machines smart enough to become competent teammates instead of just tools, working alongside society's most exposed workers in remote and challenging locations to protect people, infrastructure, assets and planet at scale. We're seeking a Lead Systems Engineer ready to make a real impact! In this role you'll report to the CTO and work with the tech team and Project Manager to drive the design and delivery of innovative UXV co-pilot systems. You'll define system requirements, architecture, and modelling letting us push the boundaries of autonomous systems. This position plays a crucial role in delivering reliable, game-changing solutions to end users. Each feature release brings us closer to transforming the future of autonomous technology. This is your opportunity to accelerate your career while shaping the next generation of intelligent systems. What you'll do: Be the design authority for a new UAS product. Build out system architecture and technical direction for this new product which draws from our existing products but requires complete system definition: Define system architecture, CONOPS, and top-level requirements Lead technology selection decisions and trade studies Establish and manage system performance budgets across subsystems Decide on system interfaces and integration strategies Serve as technical authority in customer and certification discussions Own the technical baseline that informs future product development Build on and improve our systems engineering practice. Create a new systems engineering process for our team to use by demonstrating it on the product described above. Develop a minimum viable systems engineering practice, balancing rigour and speed Implement requirements management and interface control that teams adopt naturally because they see it working Pioneer AI-augmented workflows within Systems Engineering Help ensure design documentation is coherent, consistent, visible, reviewed and verified in its implementation Build traceability frameworks connecting requirements, design and verification Guide junior engineers in building systems engineering tools that integrate with developer workflows To succeed in this role you must have: 5+ years in systems engineering for complex systems with full product lifecycle exposure (from concept through to supported products in the field) Proven track record of taking design authority and making authoritative technical decisions on complex systems Experience shipping real products, ideally with high assurance requirements (e.g. DO-178, DO-254, ISO 26262, or equivalent) Experience establishing engineering processes in growing organisations (ideally smaller companies with broad exposure, not narrow areas of work within large organisations) Working knowledge of product security standards and quality compliance frameworks (ISO 27001, AS 9100, ISO 9001, etc.) Practical, hands-on experience with both hardware and software system integration Strong technical judgement to make pragmatic trade-offs, balancing startup speed with necessary rigour Demonstrated interest in AI tooling and keenness to pioneer new approaches rather than follow traditional methods Nice-to-have bonus skills : Demonstrable experience with drone and UAVs, autonomous systems, or complex systems generally will align well with what we need for this role. Please highlight these in your application or when talking to our team: Priority 1: Drone/UAV Systems Designing drones/UAV systems through full development lifecycle Understanding of safety cases, airworthiness standards, and UAV certification processes MOD or defence customer experience Background in navigation systems, sensor fusion, or perception for autonomous systems Priority 2: Adjacent Autonomous Systems Autonomous vehicles and robotics (Ocado, Arrival, Amazon Robotics, Dyson) Missile/weapons systems, with focus on the navigation subsystem Priority 3: Complex Systems with High Assurance Aircraft, aerospace, complex hardware/software systems High assurance and safety requirements experience Academic/research experience delivering complex navigation systems Understanding of model-based systems engineering (MBSE) By joining us, you'll have: The ability to make a measurable difference in the creation of cutting-edge technology in a rapidly growing start-up Fast-paced environment with a world-class, positive, talented, and high-achieving team Merit-based compensation 5% employer pension contribution and pension salary sacrifice schemes 25 days holiday + UK bank holidays Relocation Support Package Team socials A variety of perks which evolve frequently: Free Monday team lunch, Cycle2work scheme, Private Medical Insurance, and a yearly voucher for your favourite app Security clearance Due to the sensitive nature of some of our work, it would be beneficial for candidates to be able and willing to obtain and maintain the necessary security clearance for this role. Location: At our core, we value the power of in-person interactions and collaborative sessions. Our office in Oxford, UK is not just a workplace it's a hub for team camaraderie and innovation. We have a unique and welcoming environment where team members enjoy taking their lunch together 'no one left behind' mentality but high autonomy. We even bring our international team mates over for special events and all-company gatherings. What's Next? Excited to join us? Apply now and a member of our HR team will get in touch. The process typically includes a screening call, assessment, and interview. We look forward to hearing from you!

Are you a detail-oriented Lead Systems Engineer passionate about autonomous and uncrewed systems like drones? About Us At Archangel Autonomy, we deploy AI and robotics to protect service personnel, critical infrastructure, and first responders in large, remote areas. Our mission is to make machines smart enough to become competent teammates instead of just tools, working alongside society's most exposed workers in remote and challenging locations to protect people, infrastructure, assets and planet at scale. We're seeking a Lead Systems Engineer ready to make a real impact! In this role you'll report to the CTO and work with the tech team and Project Manager to drive the design and delivery of innovative UXV co-pilot systems. You'll define system requirements, architecture, and modelling letting us push the boundaries of autonomous systems. This position plays a crucial role in delivering reliable, game-changing solutions to end users. Each feature release brings us closer to transforming the future of autonomous technology. This is your opportunity to accelerate your career while shaping the next generation of intelligent systems. What you'll do: Be the design authority for a new UAS product. Build out system architecture and technical direction for this new product which draws from our existing products but requires complete system definition: Define system architecture, CONOPS, and top-level requirements Lead technology selection decisions and trade studies Establish and manage system performance budgets across subsystems Decide on system interfaces and integration strategies Serve as technical authority in customer and certification discussions Own the technical baseline that informs future product development Build on and improve our systems engineering practice. Create a new systems engineering process for our team to use by demonstrating it on the product described above. Develop a minimum viable systems engineering practice, balancing rigour and speed Implement requirements management and interface control that teams adopt naturally because they see it working Pioneer AI-augmented workflows within Systems Engineering Help ensure design documentation is coherent, consistent, visible, reviewed and verified in its implementation Build traceability frameworks connecting requirements, design and verification Guide junior engineers in building systems engineering tools that integrate with developer workflows To succeed in this role you must have: 5+ years in systems engineering for complex systems with full product lifecycle exposure (from concept through to supported products in the field) Proven track record of taking design authority and making authoritative technical decisions on complex systems Experience shipping real products, ideally with high assurance requirements (e.g. DO-178, DO-254, ISO 26262, or equivalent) Experience establishing engineering processes in growing organisations (ideally smaller companies with broad exposure, not narrow areas of work within large organisations) Working knowledge of product security standards and quality compliance frameworks (ISO 27001, AS 9100, ISO 9001, etc.) Practical, hands on experience with both hardware and software system integration Strong technical judgement to make pragmatic trade offs, balancing startup speed with necessary rigour Demonstrated interest in AI tooling and keenness to pioneer new approaches rather than follow traditional methods Nice to have bonus skills Demonstrable experience with drone and UAVs, autonomous systems, or complex systems generally will align well with what we need for this role. Please highlight these in your application or when talking to our team: Priority 1: Drone/UAV Systems Designing drones/UAV systems through full development lifecycle Understanding of safety cases, airworthiness standards, and UAV certification processes MOD or defence customer experience Background in navigation systems, sensor fusion, or perception for autonomous systems Priority 2: Adjacent Autonomous Systems Autonomous vehicles and robotics (Ocado, Arrival, Amazon Robotics, Dyson) Missile/weapons systems, with focus on the navigation subsystem Priority 3: Complex Systems with High Assurance Aircraft, aerospace, complex hardware/software systems High assurance and safety requirements experience Academic/research experience delivering complex navigation systems Understanding of model based systems engineering (MBSE) By joining us, you'll have: The ability to make a measurable difference in the creation of cutting edge technology in a rapidly growing start up Fast paced environment with a world class, positive, talented, and high achieving team Merit based compensation 5% employer pension contribution and pension salary sacrifice schemes 25 days holiday + UK bank holidays Relocation Support Package Team socials A variety of perks which evolve frequently: Free Monday team lunch, Cycle2work scheme, Private Medical Insurance, and a yearly voucher for your favourite app Security clearance Due to the sensitive nature of some of our work, it would be beneficial for candidates to be able and willing to obtain and maintain the necessary security clearance for this role. Location At our core, we value the power of in person interactions and collaborative sessions. Our office in Oxford, UK is not just a workplace it's a hub for team camaraderie and innovation. We have a unique and welcoming environment where team members enjoy taking their lunch together "no one left behind" mentality but high autonomy. We even bring our international teammates over for special events and all company gatherings. What's Next? Excited to join us? Apply now and a member of our HR team will get in touch. The process typically includes a screening call, assessment, and interview. We look forward to hearing from you!