Senior Backend Software Engineer - Infrastructure

Become a Catalyst for Positive Change at Axon.At Axon, our mission is to Protect Life. We tackle society's most pressing safety and justice challenges through our integrated ecosystem of devices and cloud-based software. Our collaborative culture thrives on openness and diversity, as we seek insights from our customers, communities, and each other.Working at Axon means engaging in a dynamic, rewarding environment where you will take ownership of your work and drive meaningful change. Experience continuous growth while contributing to a mission that truly matters, in a company where your contributions are valued.Your RoleAs a Software Engineer I, you are eager to elevate your career and technical abilities. Your enthusiasm lies in mastering new technologies and devising innovative solutions that address customer needs. This role offers rapid advancement opportunities, allowing you to engage in high-impact projects alongside your team.At Axon, you will create high-quality, mission-critical software in a collaborative setting, utilizing modern frameworks, tools, and AI-assisted development workflows. You will thrive in an AI-first engineering environment where intelligent tools, code generation, and data-driven decision-making are part of your daily development practices.Apply your passion, experience, and analytical skills to contribute to public safety solutions and make a lasting positive impact on the world.Work Location: This position is based in our London office and follows a hybrid work schedule. We value in-person collaboration, requiring team members to work onsite from Tuesday to Friday, with the flexibility to work remotely on Mondays, unless otherwise accommodated. We believe that connection fuels innovation, and our office culture is designed to support meaningful teamwork, mentorship, and shared success.

Become a Force for Good with Axon.At Axon, we are committed to the mission of Protecting Life. We tackle society's most urgent safety and justice challenges through our innovative devices and cloud-based software. Our collaborative spirit drives our success as we engage with diverse perspectives from our customers, communities, and each other.Working at Axon is fast-paced, fulfilling, and engaging. You will have the opportunity to take ownership and enact real change while growing in a mission-driven environment where your contributions are valued.Your ImpactAs a Senior Software Engineer within the Infrastructure Services team at Dedrone, you will be tasked with designing, building, and enhancing the core systems that support our developer platform and critical backend services. Your robust software engineering skills coupled with extensive infrastructure knowledge will ensure our platform remains scalable, reliable, and secure. This role transcends traditional infrastructure operations; you will create production-ready backend services, design cloud-native systems, and manage the CI/CD and runtime environments that underpin our product ecosystem. Your influence will shape engineering standards, enhance developer experiences, and steer architectural decisions across Dedrone’s product teams.What You’ll DoWork Location: This position is situated in our London office following a hybrid work model. We emphasize in-person collaboration, requiring team members to be on-site from Tuesday to Friday, with the flexibility for remote work on Mondays, unless a workplace accommodation is in place. We believe that connection drives innovation, and our in-office culture is crafted to promote meaningful teamwork, mentorship, and collective success.Reports to: Engineering Manager, Infrastructure ServicesBackend & Platform Service EngineeringDesign, construct, and sustain production-grade backend services (primarily using Java, Go, or Python) that facilitate deployment orchestration, internal APIs, and developer platform functionalities.Contribute to architectural decisions encompassing service boundaries, API design, persistence layers, scalability strategies, and fault tolerance.Enhance performance, reliability, and maintainability of platform services through rigorous testing practices and meticulous system design.Manage and evolve shared services governed by the Infrastructure Services team.CI/CD & Developer PlatformOwn, design, and refine CI/CD systems that support Dedrone’s distributed product ecosystem.

Join Axon and become a Force for Good.At Axon, we are dedicated to Protecting Life. Our mission drives us to tackle society's most pressing safety and justice challenges through our innovative ecosystem of devices and cloud-based software. We believe in collaboration, openness, and the value of diverse perspectives from our customers, communities, and each other.Life at Axon is dynamic, demanding, and impactful. Here, you will take ownership of your work and instigate tangible change. Experience continuous growth while contributing to a mission that truly matters, at a company that values your contributions.Your ImpactThis position is ideal for innovators who thrive in a startup-like environment. In Axon's Global Artificial Intelligence division, you will develop a groundbreaking product with a small, dedicated team, aiming to deliver something unprecedented to the market swiftly.As a Senior Software Engineer I, you will spearhead critical aspects of the product from conception to launch. You will make informed architectural decisions, maintain high quality while accelerating development, and assist the team in transforming prototypes into a scalable solution.This role is fundamentally AI-driven: AI will be integral to your delivery approach, not merely an addition.What You’ll DoOversee the development of significant product features and services; manage end-to-end ownership from design through to operations.Clarify product direction amidst uncertainty: articulate the problem, define MVP scope, establish success metrics, and ensure stakeholder alignment on project completion criteria.Create and deploy software using AI methodologies across the Software Development Life Cycle (SDLC), with thorough validation practices to ensure accuracy and quality.Utilize engineering metrics (lead time, PR throughput, defect rates, test coverage, incident load) to assess and enhance delivery outcomes, refining team shipping processes.Make architectural choices that effectively balance speed and scalability, recognizing when temporary solutions become permanent.Implement and uphold engineering best practices that enhance productivity (testing strategies, CI/CD, observability, and sensible release methodologies).Collaborate closely with Product and Design teams (and function effectively in their absence) to prioritize, sequence, and deliver the highest-value increments.Mentor fellow engineers while fostering a culture of trust and ownership.

Join Axon as a Senior Software Engineer I and be at the forefront of developing innovative software solutions that enhance public safety. You will leverage your expertise to design, build, and maintain software systems that have a meaningful impact.

Join Axon and be a Force for Good.At Axon, we are committed to our mission of Protecting Life. We tackle society's most pressing safety and justice challenges with our innovative ecosystem of devices and cloud-based software. Like our products, we thrive on collaboration, connecting with openness and empathy, and embracing diverse viewpoints from our customers and colleagues.At Axon, you will find a dynamic, rewarding, and fast-paced work environment. You'll have the chance to take charge and make a real impact, growing continuously while contributing to a cause that truly matters at a company that values your contributions.Your ImpactAs a Senior Order Management Analyst, you will play a pivotal role in ensuring the accuracy, efficiency, and integrity of Axon's order-to-cash operations. You will independently oversee intricate booking workflows while collaborating cross-functionally with Sales, Finance, Fulfillment, Product, and Customer Success teams to enhance the customer experience.

Join Axon and be a Force for Good.At Axon, we’re driven by a mission to Protect Life. We tackle society’s most pressing safety and justice challenges with our innovative ecosystem of devices and cloud-based software. Much like our products, we believe in collaboration, valuing diverse perspectives from our customers, communities, and each other.Working at Axon is dynamic, challenging, and rewarding. Here, you’ll have the opportunity to take ownership and drive significant change, growing continuously as you contribute to a mission that truly matters at a company where you are valued.Your ImpactAs a vital member of our Global Talent Acquisition team, you will lead full-cycle recruitment initiatives aimed at attracting experienced corporate talent who resonate with Axon’s mission. Your role involves guiding candidates and hiring teams throughout the hiring journey, leveraging your interpersonal skills to effectively collaborate with candidates, business partners, peers, and executives. Our team thrives on support and camaraderie, working together to achieve our ambitious goals.This role is based in our London office and operates on a hybrid model. We prioritize in-person collaboration and require team members to work onsite from Tuesday to Friday, with the option to work remotely on Mondays, unless otherwise accommodated. We believe that fostering connections sparks innovation, and our office culture is designed to promote meaningful teamwork, mentorship, and collective success.

Role overview Axon Enterprise, Inc. is seeking a Senior Software Engineer II to join its London office. This position centers on developing software that directly supports public safety and serves communities. Engineers at Axon play a key part in building solutions designed to grow and adapt alongside evolving needs. Key responsibilities Collaborate with engineers from diverse backgrounds to design and build software products Develop and enhance systems that assist public safety professionals in their daily responsibilities Share ideas and contribute code in a setting that values technical input and encourages new perspectives Work environment The engineering group values both initiative and teamwork. Creativity and practical problem-solving are woven into daily routines, and the team moves quickly to deliver results that matter.

Axon Enterprise, Inc. is seeking a Technical Recruiter to join the team in London. The focus is on supporting the growth of teams dedicated to public safety technology by finding and hiring skilled technical professionals who can advance Axon's mission. Key responsibilities Source and attract technical candidates for a variety of roles Connect with candidates to learn about their backgrounds and career interests Provide information about open positions at Axon and respond to candidate questions Collaborate with hiring managers and stakeholders to develop effective recruiting strategies Help strengthen Axon's teams by bringing in talented individuals Collaboration and influence This role works closely with hiring managers to clarify hiring needs and shape recruitment approaches that align with Axon's objectives. Decisions and actions in this position have a direct impact on team growth and the company's broader mission. Location This position is based in London, England, United Kingdom.

Become a Force for Good with Axon.At Axon, our mission is to Protect Life. We are innovators tackling society’s most pressing safety and justice challenges through our integrated ecosystem of devices and cloud software. Like our products, we thrive on collaboration, connecting with transparency and empathy, and embracing diverse perspectives from our customers, communities, and each other.Working at Axon is fast-paced, challenging, and purposeful. Here, you will take the initiative and make a tangible impact. Constantly develop your skills as you dedicate yourself to a mission that matters within a company that values your contributions.Your ContributionJoin us in revolutionizing infrastructure automation for critical law enforcement systems. As a Senior Site Reliability Engineer, you will lead the creation of a cutting-edge infrastructure provisioning and automation platform. This platform allows engineering teams to independently access cloud infrastructure, ensuring safety and efficiency while minimizing manual interventions and operational risks.Your role will involve hands-on contributions to build and enhance systems leveraging automation and intelligent agents to generate, validate, test, and manage infrastructure at scale. We seek an engineer with a strong software development background, proficiency in programming languages such as Go or Python, and extensive experience in designing and operating cloud platforms, with a drive to enhance developer productivity, reliability, and platform robustness.Work Location:This position is based in our London office and follows a hybrid work schedule. We emphasize in-person collaboration, requiring team members to be onsite from Tuesday to Friday, with the option to work remotely on Mondays, unless a workplace accommodation has been approved. We believe that connection fuels innovation, and our in-office culture is designed to promote meaningful teamwork, mentorship, and collective success.Key ResponsibilitiesDevelop robust, user-friendly foundational platforms and tools that enable engineering teams to provision infrastructure quickly, consistently, and securely across diverse cloud providers.Write efficient, maintainable, and clear code in Go.Promote and uphold Infrastructure as Code (IaC) best practices and coding standards.Utilize strong problem-solving skills to troubleshoot issues in cloud-native distributed systems.Influence and educate the engineering organization on adopting new and improved architectural patterns.Provide comprehensive documentation to facilitate self-service by engineers.

About Axon Axon’s mission is to safeguard life. The company develops devices and cloud-based software focused on public safety and justice. Teams at Axon work together to address complex challenges, valuing transparency, empathy, and a range of perspectives from users, communities, and colleagues. Role Overview: Senior Site Reliability Engineer I This position sits within the Site Reliability Engineering (SRE) team. The main focus: tackle real-time challenges across Axon’s mission-critical, cloud-native services. The work centers on maintaining the reliability and quality customers expect. Collaboration is key, both within the SRE group and across the wider engineering organization, to help product teams deliver new features consistently. Work Location and Flexibility This role is based in London, England, United Kingdom. Axon uses a hybrid working model. Team members are expected onsite from Tuesday to Friday, with remote work on Mondays (unless a workplace accommodation is granted). The company emphasizes in-person collaboration to support teamwork, mentorship, and shared success.

Join Perplexity, a pioneering company based in London, as we transform the way users search and engage with the internet. We are seeking seasoned Infrastructure Engineers to become integral members of our dynamic team. In this role, you will lead the design, implementation, and scaling of innovative tools, systems, and platforms that empower web, mobile, and browser engineers to develop cutting-edge products. Your contributions will be vital in enabling our product, AI, and development teams to innovate swiftly while ensuring utmost reliability, security, and performance at scale.Our Tech StackPython | Go | TypeScript | PostgreSQL | DynamoDB | Redis | FastAPI | React | Bazel | GitHub | AWSTeams HiringSenior/Staff PlatformThe Platform team is fundamental to ensuring product reliability, scalability, and performance at Perplexity. This elite team is responsible for developing and maintaining the critical infrastructure—from backend systems such as authentication, real-time data flows, and service orchestration to frontend frameworks that guarantee fast, reliable, and secure user experiences. By upholding stringent standards for code quality, uptime, and developer productivity, the Platform team enables all of Perplexity to innovate rapidly on a solid, well-designed foundation.Senior/Staff DevXThe Developer Experience (DevX) team is dedicated to empowering engineers at Perplexity to build, ship, and iterate faster than ever before. They manage internal platforms for source control, build, test, and deployment, effectively removing bottlenecks from each phase of product development. This team designs seamless onboarding, ultra-fast CI/CD pipelines, and developer tools that enhance creativity and safety at scale. Through collaborative efforts and significant autonomy, the DevX team amplifies the contributions of every engineer, facilitating rapid, dependable innovation across the organization.Senior/Staff Cloud InfraThe Cloud Infrastructure team architects and manages the essential cloud infrastructure that powers Perplexity’s global platform. This team designs and scales computing, storage, and networking systems to support high-throughput, low-latency workloads, balancing proactive project initiatives with operational support. Collaboration with product, AI research, security, and other teams ensures that our services remain consistently available, reliable, and responsive to user demands.

Join Axon, a leader in innovative technology solutions, as a Junior Software Engineer. In this entry-level position, you will have the opportunity to work with a talented team of engineers to develop and enhance software applications that empower law enforcement and public safety agencies worldwide.Your role will involve coding, debugging, and collaborating with cross-functional teams to deliver impactful solutions. This is an exciting opportunity to kick-start your career in software development while making a difference in communities.

Senior Software Engineer I at Checkout.com, London About Checkout.com Checkout.com supports digital payments for companies like eBay, ASOS, Klarna, Uber Eats, and Sony. Headquartered in London, the company operates across six continents and focuses on simplifying online transactions for businesses worldwide. What You’ll Do Senior Software Engineers at Checkout.com help design and build advanced payment technologies. This work directly improves merchant capabilities and supports the company's global mission. The role involves: Leading projects that align with strategic goals Collaborating with teams that prioritize customer needs Bringing technical insight and creativity to solve new challenges Influencing engineering priorities and direction What Sets This Team Apart Innovation and performance drive the culture at Checkout.com. Every team member plays a part in shaping the future of fintech. Senior engineers are trusted with real responsibility and the chance to make a visible impact. Location This position is based in London. Learn more about the company at Checkout.com.

About H Company H Company pursues advances in superintelligence with a focus on agentic AI. The team works to automate complex, multi-step tasks that typically require human involvement, aiming to expand what people can achieve. H Company values curiosity, responsibility, and a commitment to safety in AI. The culture emphasizes openness, ongoing learning, and collaboration, with each person’s input recognized and appreciated. Infrastructure Team Overview The Infrastructure team provides researchers and engineers with the resources they need to do their best work. This group maintains the core infrastructure behind H’s public services, building systems that are reliable, scalable, and ready for growth. Team members shape everything from foundational models to agent systems and public-facing services.

Join physicsx as a Senior Software Engineer specializing in Site Reliability Engineering (SRE). In this pivotal role, you will be responsible for enhancing our core infrastructure, ensuring reliability, scalability, and performance of our software systems. You will work with a talented team to design, implement, and maintain robust solutions that meet the needs of our users.As a senior engineer, you will also mentor junior team members, contribute to architectural discussions, and drive best practices in software development and operations.

Location: London, UK - Hybrid (3 days in office)About the TeamThe Foundations team is responsible for developing the essential systems and tools that empower engineers at DoorDash and Deliveroo to create, deploy, and manage software efficiently at scale. We regard our infrastructure, CI/CD processes, and developer tools as products, crafted with the same level of precision and care as our customer-facing solutions. Our goal is to enhance engineering speed, reliability, and security as we revolutionize the global dining and shopping experience.About the RoleIn this role, you will work at the dynamic intersection of software engineering and cloud infrastructure. You will produce high-quality code to automate processes and develop internal tools while designing and managing scalable systems on AWS.This hands-on position focuses on optimizing the software development lifecycle, deployment, and operational practices throughout the organization — balancing coding, infrastructure design, and operational excellence.Your ResponsibilitiesDeveloping and maintaining software (primarily in Go) to automate infrastructure, streamline developer workflows, and enhance platform featuresDesigning, deploying, and operating secure, scalable systems within AWSCreating and maintaining CI/CD pipelines utilizing GitHub Actions, CircleCI, Buildkite, and other related toolsImplementing infrastructure as code and enhancing automation across various environmentsTroubleshooting and resolving sophisticated build, deployment, and production issues across application and infrastructure layersEnhancing observability, reliability, and performance of internal platforms and production systemsCollaborating with engineering teams to establish best practices for deployment, release management, and cloud architectureParticipating in technical design discussions and driving continuous improvements in DevOps methodologiesRequirementsExtensive experience in building and operating CI/CD systems using tools like GitHub Actions, CircleCI, or BuildkiteProficiency in writing and maintaining production-quality software in Go or equivalent languagesStrong background in cloud services, particularly AWSExperience with infrastructure as code tools such as Terraform or CloudFormationDemonstrated ability to troubleshoot complex issues across applications and infrastructureExcellent communication skills and a collaborative mindset

At Coram AI, we are revolutionizing video security in today's digital landscape. Our innovative cloud-native platform leverages cutting-edge computer vision and artificial intelligence to empower businesses with enhanced safety, informed decision-making, and rapid response capabilities. Experience real-time alerts, effortless clip sharing, and comprehensive visibility across multiple sites.Joining our dynamic, agile team means embracing clarity, excellence, and impactful contributions. Every team member has a voice, delivers significant work, and plays a vital role in shaping how AI can foster a safer and more interconnected world.In this role, you will be part of a pioneering team responsible for managing a sophisticated infrastructure that transcends conventional cloud setups. Beyond our robust AWS and Kubernetes configurations, we also oversee a vast array of IoT devices. We are in search of a skilled engineer who will play a crucial role in developing and maintaining our edge and cloud stack that supports our IoT product offerings, focusing on both infrastructure and the bespoke software we utilize.You will tackle intriguing challenges at the confluence of user experience, machine learning, and infrastructure, while committing to excellence, continuous learning, and delivering exceptional products in a fast-paced startup environment.

Role overview The Senior Software Engineer I at Runna will play a key part in shaping how users interact with the company’s products. The work centers on designing, developing, and maintaining applications that support a strong user experience. Expect to take a hands-on approach, working closely with colleagues from different teams to deliver solutions that scale and perform reliably. Location This role is based at the Runna office in London.

At Databricks, we're committed to empowering data teams to tackle some of the world's most challenging issues, including security threat detection and cancer drug development. Our mission is to create and manage the premier data and AI infrastructure platform so our customers can dedicate their efforts to the high-value challenges crucial to their missions. Our engineering teams develop cutting-edge products that meet significant real-world needs. We operate one of the largest-scale software platforms, comprising millions of virtual machines that generate terabytes of logs and process exabytes of data daily. Given our scale, we frequently encounter hardware, network, and operating system faults, and our software must effectively shield our customers from these challenges. The Delta DML team is responsible for the core write-path operations for Delta Lake, the open-source storage layer underlying the Databricks Lakehouse. Our goal is to deliver industry-leading performance and a seamless user experience at massive scale, with most data written in Databricks passing through our platform. We innovate in performance through features like Low Shuffle Merge and Deletion Vectors, and actively contribute to open-source initiatives that unify Delta and Iceberg formats. We are on the lookout for a highly skilled and experienced Senior Staff Software Engineer to join our backend team. In this pivotal role, you will design, develop, and maintain robust backend systems that power Databricks workspaces. You will work on building the next-generation platform for serving workspace assets, ensuring high queries per second (QPS), low latency, reliability, and performance while proactively addressing future growth challenges. As a senior member of the team, your responsibilities will also include providing technical leadership, mentorship, and guidance to junior engineers, thereby enhancing the overall coding practices and system designs of the team.