Staff Backline Engineer Jobs

Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development, helping people work better and stay at the center of successful organizations. Following our recent Series E funding round, where we raised $200 million, our valuation stands at $4 billion. Our total funding exceeds $530 million from premier investors including Accel, NVentures (Nvidia's VC arm), Kleiner Perkins, GV, and Evantic Capital, alongside the founders and operators of Stripe, Datadog, Miro, and Webflow. About the role As a Staff Research Scientist, you will join a team of 40+ researchers and engineers in our R&D department, working on the frontier of generative AI with a focus on avatar-centric, interactive video diffusion models. This is a unique opportunity for experts in machine learning and diffusion models to shape the future of AI video agents that listen, respond, and react like humans. As part of our Interactive Avatars team, you'll build models that hold natural, real-time conversations: understanding what a user says and how they say it, then responding with appropriate turn-taking, backchannels, gaze, and facial and body reactions. You'll join a team that moves fast, iterates often, and turns breakthrough research into product capabilities that ship. What you'll do Set the research direction and roadmap for dyadic interaction modeling, balancing long-term bets with near-term product impact. Advance the state of the art in the perceptual layer of interactive agents, including understanding user audio and video and generating contextually appropriate reactions. Post-train multimodal models to generate rich, natural dyadic interactions from user audio and video inputs. Adapt diffusion models to new

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. Staff Software Engineer - Backend Get to Know Okta Okta is The World’s Identity Company. We free everyone to safely use any technology—anywhere, on any device or app. Our Workforce and Customer Identity Clouds enable secure yet flexible access, authentication, and automation that transforms how people move through the digital world, putting Identity at the heart of business security and growth. At Okta, we celebrate a variety of perspectives and experiences. We are not looking for someone who checks every single box—we are looking for lifelong learners and people who can make us better with their unique experiences and backgrounds. Join our team! We are building a world where Identity belongs to you. Identity Security Pillar Okta's Identity Security Pillar is at the forefront of defending modern enterprise environments against sophisticated identity-centric attacks. As enterprise attack surfaces expand across clouds, SaaS ecosystems, and hybrid networks, our pillar delivers unified, next-generation security capabilities that protect organizations across the entire threat lifecycle. Joining our pillar gives you the unique opportunity to build and impact diverse, cutting-edge products across the security domain, including: Identity Security Posture Management (ISPM): Delivering continuous, contextual visibility into complex identity infrastructure, surfacing misconfigurations, eliminating toxic combinations of permissions, and reducing overall attack surfaces

Our Global Structure Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team. Join us in our mission to transform the way people shop and eat, where impact, innovation and growth drive everything we do. Our Product team defines how millions of people experience Deliveroo, turning complex marketplace challenges into simple, high-impact solutions. Working at the intersection of data, design and engineering, we set direction, prioritise what matters most, and deliver outcomes that move the business forward. We’re looking for a Staff Product Designer to join our Retail team in London. This is a hybrid role. In this role, you’ll help us shape the strategic vision for retail delivery, building brand-new shopping experiences and unlocking emerging categories to scale our marketplace. What You’ll Be Doing You’ll be joining the Retail team. Retail is a fast-growing, greenfield area for us beyond core restaurant and grocery delivery, helping people get almost anything delivered locally. Here’s what your day-to-day might look like: Strategic Direction & Product Vision Lead strategic design sprints to establish the foundation and execution plan for our 2027 product vision, defining how distinct retail categories and shopping formats feel. Partner autonomously with Product, Engineering, and Business leaders as a trusted advisor to co-own the product roadmap and decide what we build and why. Craft & Quality Raise the design craft bar across the team by guiding team members, hosting critique sessions, and fostering a culture of high quality and detail. Spot and resolve platform-wide systems challenges—such as accessibility, performance, and UI consistency—at scale across the ecosystem. Culture & Leadership Drive studio-wide initiatives that sh

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. Staff Software Engineer - Full-stack Get to Know Okta Okta is The World’s Identity Company. We free everyone to safely use any technology—anywhere, on any device or app. Our Workforce and Customer Identity Clouds enable secure yet flexible access, authentication, and automation that transforms how people move through the digital world, putting Identity at the heart of business security and growth. At Okta, we celebrate a variety of perspectives and experiences. We are not looking for someone who checks every single box—we are looking for lifelong learners and people who can make us better with their unique experiences and backgrounds. Join our team! We are building a world where Identity belongs to you. Identity Security Pillar Okta's Identity Security Pillar is at the forefront of defending modern enterprise environments against sophisticated identity-centric attacks. As enterprise attack surfaces expand across clouds, SaaS ecosystems, and hybrid networks, our pillar delivers unified, next-generation security capabilities that protect organizations across the entire threat lifecycle. Joining our pillar gives you the unique opportunity to build and impact diverse, cutting-edge products across the security domain, including: Identity Security Posture Management (ISPM): Delivering continuous, contextual visibility into complex identity infrastructure, surfacing misconfigurations, eliminating toxic combinations of permissions, and reducing overall attack surfa

Our Global Structure Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team. Join us in our mission to transform the way people shop and eat, where impact, innovation and growth drive everything we do. Our Product team defines how millions of people experience Deliveroo, turning complex marketplace challenges into simple, high-impact solutions. Working at the intersection of data, design and engineering, we set direction, prioritise what matters most, and deliver outcomes that move the business forward. We’re looking for a Staff Product Designer (Motion) to join our Studio Central team London team. In this role, you’ll lead the shift toward build-first motion design, establishing principles and systems that elevate craft and expression across our global product surfaces. What You’ll Be Doing You’ll be joining the Studio Central team. Studio Central is a net-new global Product Design team sitting at the intersection of product, brand, and innovation, supporting Deliveroo, DoorDash, Wolt, and 7Rooms. We own how brand shows up in the product experience, partnering closely with Marketing and Product teams to shape cohesive, high-quality work and define the future state of design across our portfolio. Here’s what your day-to-day might look like: Strategy, Systems & Influence Define the point of view and motion principles for how branded moments behave across products, elevating customer, rider, and merchant experiences. Build reusable motion systems, expression frameworks, animated component libraries, and AI-assisted tooling to empower designers across all brands to ship high-quality motion independently. Establish motion as a core discipline within Studio Central, creating the rituals, crits, and guidelines required to scale the capability past a si

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. What You’ll Be Doing Design, build, and operate highly scalable, reliable, and secure infrastructure powering our production systems across AWS and GCP. Lead major reliability and modernization initiatives, including container platform migrations (e.g., ECS to EKS/GKE) and microservice enablement across multi-cloud environments. Serve as a technical authority in Kubernetes (EKS and GKE), cloud infrastructure (AWS and GCP), and modern CI/CD practices (GitOps, automation pipelines). Partner with development teams to architect and enable microservice-based applications, ensuring production readiness, scalability, and observability. Implement and manage infrastructure as code (Terraform, Ansible) to automate provisioning, scaling, and configuration management across multiple cloud providers. Drive improvements in observability, performance, and cost efficiency through robust monitoring, logging, and alerting systems that span AWS and GCP. Champion SRE best practices — defining SLOs/SLIs, conducting blameless postmortems, and continuously improving incident response. Lead complex technical projects from conception to completion, managing timelines, and technical dependencies across teams. Mentor engineers across teams, fostering a culture of reliability, automation, and continuous learning. Collaborate with security and compliance partners to ensure infrastructure adheres to best practices and standards (e.g., IAM Federation, Workload Identity). Participate in t

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world’s largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone’s reach while doing the most important work of your career. About the team The Compute Foundation group builds and operates the core systems that enable every Stripe engineer to ship code, configuration, and infrastructure changes safely and at high velocity. Embedded on the Imaging team, you will design, build, and distribute Linux machine images; manage host bootstrapping and OS-configuration systems; oversee OS packages and security-patching infrastructure; and provide platforms that empower service teams to safely run workloads across cloud providers and regions. What you’ll do Own the foundation of Stripe’s compute fleet: Stripe’s services rely on host infrastructure that boots reliably, receives accurate configurations, and operates safely. Your decisions will directly shape the base operating system, package ecosystems, security posture, and bootstrap behavior of Stripe’s fleet. Lead active architectural transformations: The team is driving key platform evolutions, including modernizing the OS configuration layer, containerizing workloads, scaling machine image distribution across multi-cloud regions, and streamlining OS upgrades and critical security patching. Drive broad, end-to-end host lifecycle ownership: Work across the entire host lifecycle - from image construction, package distribution, kernel and OS configuration, early boot/systemd, storage, networking initialization, and workload readiness. You will tackle complex engineering challenges that balance reliability, security, compliance, developer ex

About Snorkel Snorkel AI is the frontier AI data lab, helping teams build the data and environments behind high-performing frontier and agentic AI. We combine technology with research-driven AI data development to create datasets, benchmarks, evals, and custom solutions for real-world AI systems. Founded out of the Stanford AI Lab in 2019, Snorkel works with leading AI labs and enterprises to move from better data to better outcomes. Excited to help us redefine how AI is built? Apply to be the newest Snorkeler! The Role As an Applied AI Engineer, you’ll research and utilize state-of-the-art Gen AI and machine learning (ML) techniques to successfully deliver solutions to our customers. You will work directly with our customers to understand their business and technical needs and design and deliver AI solutions to solve them. You will also help define Snorkel’s Applied AI tooling by translating repeatable real-world challenges into reusable solution recipes, workflows, best practices, and platform-level capabilities that become part of Snorkel’s next generation of AI tooling. We move fast and are constantly prototyping and innovating new ways to deliver value to our customers. This position is ideal for someone who enjoys solving complex problems, bridging the gap between AI technology and business value, working directly with customers, keeping up-to date with AI research, and standardizing bespoke solutions into internal recipes and staying naturally curious about the infrastructure that underpin the Applied AI stack end-to-end. Main Responsibilities Partner with customers to build and deploy impactful Gen AI and machine learning solutions, from use case scoping and data exploration to model development and deployment. This will involve designing custom approaches using state-of-the-art tools, with the goal of delivering real business value and informing the evolution of Snorkel’s tooling. Develop and implement state of the art AI systems such as retrieval-aug

Omada Health is on a mission to bend the curve of chronic disease. Job Overview: We are hiring a Staff Software Engineer to help expand Omada’s footprint in cardiometabolic care and physical activity. This is early-stage, high-ownership work: you’ll shape how we build new member- and care team-facing experiences in this space and set the technical foundation for where we take it next. You’ll operate primarily in the backend while bringing the adaptability to work across the stack when the problem calls for it. You should be comfortable learning new systems quickly, using modern engineering and AI-assisted tools thoughtfully, and making pragmatic technical choices in ambiguous spaces. You’ll own architecture end to end, set the quality bar, and help other engineers make better technical decisions while turning complex product opportunities into shipped, reliable systems. About you: You work with empathy for your coworkers, stakeholders and users. You are excited to work cross-functionally with a variety of people and ideas. You work directly with stakeholders to design solutions and drive the technical decisions for delivery. You proactively keep up with technology trends and can assess technical trade-offs between solutions across service boundaries. You care about writing quality software and recognize that there are often many right answers. You are excited about the challenge of learning new technologies and context. Above all, you are enthusiastic about providing the best possible care for our members. What you’ll be doing: Partner with product, clinical, and cross-functional teams to turn vision into shipped product. Own architecture and technical direction end to end for new member- and care team-facing experiences. Apply broad technical judgment across languages, frameworks, and systems, using modern engineering and AI-assisted tools to quickly build context, evaluate tradeoffs, and guide delivery. Set the quality bar: clean,

Our vision is to transform how the world uses information to enrich life for all. Join an inclusive team passionate about one thing: using their expertise in the relentless pursuit of innovation for customers and partners. The solutions we build help make everything from virtual reality experiences to breakthroughs in neural networks possible. We do it all while committing to integrity, sustainability, and giving back to our communities. Because doing so can fuel the very innovation we are pursuing. Key Responsibilities Strategic Programs, Cost Savings & Execution Lead and enable cross-functional programs that deliver measurable cost savings, productivity improvement, and priority business outcomes. Establish disciplined governance for savings opportunities, program milestones, ownership, risks, dependencies, and closure plans to ensure strong leadership visibility and accountability. Translate strategic priorities into executable workplans, measurable deliverables, and timely decisions across technical, operational, and business stakeholders. Supplier Engagement, Scale & Capacity Readiness Support strategic supplier engagement by coordinating executive-level forums, preparing agendas and materials, tracking commitments, and ensuring timely follow-through across internal and external stakeholders. Coordinate scale and capacity readiness programs by consolidating inputs, identifying execution gaps, aligning stakeholders, and escalating risks or decisions as required. Prepare concise, leadership-ready updates on supplier engagement progress, capacity readiness, dependenci

Our vision is to transform how the world uses information to enrich life for all. Join an inclusive team passionate about one thing: using their expertise in the relentless pursuit of innovation for customers and partners. The solutions we build help make everything from virtual reality experiences to breakthroughs in neural networks possible. We do it all while committing to integrity, sustainability, and giving back to our communities. Because doing so can fuel the very innovation we are pursuing. Job Summary: Every gigabyte Micron ship is trusted to hold someone's data for years, whether in a phone, a car, a data center or an AI cluster. The NAND Product Reliability Architecture (NRA) team defines how we prove that trust before a product is released. As a Staff Engineer in NAND Product Reliability Architecture team, you will own the reliability architecture for Micron's newest NAND products end-to-end: interpreting reliability requirements, architecting qualification and stress strategies, developing and integrating reliability algorithms and system features, and optimizing coverage, sampling and test time so that we qualify faster without compromising quality. This is a high-leverage, high-visibility role. Your architecture decisions directly influence qualification cycle time, product time to market and the reliability our customers experience in the field. In a market where being first to qualify is a competitive advantage, speed is a core expectation. You will work closely with Technology Development, System Architecture, Design Engineering, Product Engineering, Manufacturing and Quality, and you will be expected to influence across these teams. Main Responsibilities: Comprehend NAND reliability specifications

Our vision is to transform how the world uses information to enrich life for all . Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. We’re part of a team that enables advanced semiconductor design through innovative CAD and EDA solutions. Our work sits at the intersection of design automation, software engineering, and AI, helping engineering teams move faster, solve complex challenges, and deliver high-quality products. If you enjoy tackling technical problems and improving the tools that power chip development, this is an exciting opportunity to make a meaningful impact. As a CAD Engineer, you will support and enhance semiconductor design flows, EDA tools, and automation solutions used across integrated circuit development. This role combines software development, technical leadership, and AI-driven innovation to improve engineering productivity and design quality. You will collaborate closely with design, process, and CAD teams while helping shape the next generation of design methodologies. Responsibilities: Lead complex CAD and EDA tool development, enhancement, and support projects Drive AI and machine learning adoption within CAD workflows and engineering processes Develop, debug, and improve design, layout, simulation, and verification tools and flows Partner with design and process engineering teams to optimize semiconductor development methodologies Provide technical guidance, training, and documentation for new tools and capabilities Minimum Qualifications: Bachelor’s degree in Computer Engineering, Computer Science, Electrical Engineering, or a related field 5&#4

At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. About the Product team The Product team listens to our customers’ needs and translates those insights into a clear product vision. The team works closely with design, engineering, and analytics to build scalable financial products that empower people to manage their money with confidence. We rely on empathy, curiosity, and business sense to prioritize features and improve experiences. Our role is to lead with clarity, support cross-functional execution, and champion the user in every decision. About the role Millions of people use the Affirm Card, but we don’t yet give them a reason to keep coming back beyond the product itself. You’ll build our consumer loyalty program from scratch: what people earn, how they move up, and why Affirm becomes their default way to pay. What you’ll do Own the vision and roadmap for Affirm’s consumer loyalty program, setting the hypotheses, success metrics, and sequencing across multiple quarters Launch the first version of rewards and tiers, including earn mechanics, member benefits, redemption, and the surfaces that make the value obvious in app, at checkout, and after a purchase Build the engagement loops (progress, milestones, personalized offers) that turn a one-time borrower into someone who reaches for Affirm every week Own the program economics: reward liability, funding mix across merchant-funded offers, interchange and network incentives, and the case for incremental GMV against cost per member Set up the measurement foundation for loyalty, including holdouts, incrementality testing and long-run LTV, then tune earn and burn rates and tier thresholds off what the data says Partner with Risk, Credit, Legal, Compliance, Finance and Marketing to design rewards that are compliant and clearly disclosed, with no hidden fees or fine print that surprises peopl

We believe that the way people interact with their finances will drastically improve in the next few years. We’re dedicated to empowering this transformation by building the tools and experiences that thousands of developers use to create their own products. Plaid powers the tools millions of people rely on to live a healthier financial life. We work with thousands of companies like Venmo, SoFi, several of the Fortune 500, and many of the largest banks to make it easy for people to connect their financial accounts to the apps and services they want to use. Plaid’s network covers 12,000 financial institutions across the US, Canada, UK and Europe. Founded in 2013, the company is headquartered in San Francisco with offices in New York, Seattle, Washington D.C., Raleigh, London, and Amsterdam. Plaid’s Consumer team owns all of Plaid’s consumer facing surfaces. This includes Link, Plaid’s flagship product, which has been used by over half of all US adults to share their information safely and securely with financial applications. Link drives the vast majority of Plaid’s revenue. We’re also building out Plaid’s first B2C product, which is an exciting, 0-1 space for us. Both areas are top business priorities. Responsibilities As the Plaid Account PM, you will own everything related to the consumer identity on Plaid. This includes: User authentication (UX and risk models) Launching a surface for users to manage their connections and permissioning with various applications and agents. You will own this surface area across web and mobile Leading company-wide workstreams around establishing a first party relationship with consumers Roadmap around creating deeper and richer network of consumer profiles on Plaid You will own the roadmap for the above and partner with cross-functional team to hit your goals: Drive prioritization and execution (build, measure, iterate) Identify opportunities through consumer feedback and staying close to our data / dashboards Partner with cross-fu

About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. About the role Frontier AI is on track to be among the most consequential and most adversarially-targeted technology in the world. The capability curve is steep, the adversaries who want these systems are extremely well-resourced, and the security bar this will eventually require is well beyond where the industry operates today. Incremental hardening alone is not going to close that gap, so we need breakthroughs and a group of people to go find them. Security Labs is that team. We run a portfolio of high-risk, high-expected-value security projects: the work that seems impractical until someone optimistic and stubborn enough actually tries it. Projects run on the order of weeks rather than quarters, and each one is either handed off to the Anthropic team that will own it in production or wound down with a writeup of what we learned. We expect a meaningful fraction of our bets not to land. This team is intentionally scrappy and ambitious. We're intentionally iterating fast on high-risk research bets and we expect a meaningful fraction not to land. If a 30% project success rate sounds uncomfortable, or uncharted and chaotic territory isn’t both frightening and exciting, this probably isn't the right fit. There are other places in Anthropic Security doing important work with more structure, less risk, and more certain paths to positive outcomes. The questions we're trying to answer include: Can our core research workflows survive extreme isolation? Can we replace trust with cryptographic guarantees? Can the models themselves become our most effective security control? What would it actually take to defend against a tier-1 state adve