Senior Application Engineer Jobs

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. . Hiring and how we work We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings. . See yourself at Twilio Join the team as Twilio’s Senior Application Engineer, Zuora Billing About the job This position is needed to join our Enterprise Application Development and Operations team as senior Application Engineer who is responsible for design, configure, develop and test Zuora billing to support the requirements of the Finance, quote, Billing, AR, Revenue, Collections & Accounting teams. The ideal candidate should be a self-starter, have a solid analytical mi

Job Summary The Senior Application Engineer (AE) serves as a product-focused technical expert and strategic partner to customers, Sales, and Product Management, driving adoption and revenue growth for Phoenix Contact’s Industrial Ethernet portfolio. Leveraging deep product and application expertise, this role identifies, develops, and converts sales opportunities into high-value, product-aligned solutions, influencing specification decisions and delivering measurable business outcomes. The Senior AE leads complex customer engagements centered on the application, positioning, and integration of Industrial Ethernet products, including network system architecture design, solution development, and advanced troubleshooting. This role is primarily focused on pre-sales engineering of customer network solutions, delivering product-centric training on network technologies and industry applications, and providing Level 3/4 technical support across the networking portfolio managed by the U.S. organization. Additionally, this position plays a critical role in advancing Phoenix Contact’s industrial networking and critical infrastructure product strategy by enabling internal and external stakeholders—including sales teams, channel partners, and customers—while supporting the broader ecosystem of aligned technologies (e.g., cloud platforms, software solutions, and integration partners). Operating with a high degree of independence, the Senior AE also serves as the voice of

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the results that matter. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. What is The Role As a Senior Application Engineer on our IT Team, you'll be instrumental in developing and implementing solutions that help us meet our business objectives with Xactly. We’re seeking a candidate who possesses strong technical expertise and enjoys working collaboratively, contributing to a culture of continuous improvement and innovation. If you're excited about making a real impact in a team-oriented setting, this could be the right fit for you. What You Will Be Doing: Build, maintain, and optimize Connect integration pipelines between source systems and Xactly. Partner with non-technical stakeholders (comp analysts, finance ops), Sales Compensation, Accounting, Sales, and IT to define data requirements. Troubleshoot and resolve data quality issues, failed Connect jobs, data mismatches, and pipeline errors before commission runs. Document p

About Ramp Ramp is building the smart infrastructure for finance teams, embedded in the transaction flow of every dollar a business spends. We automate how over $200B in annualized spend flows in and out of 70,000+ companies: authorizing payments, flagging risk, categorizing spend, and closing books. The problems are high-stakes, data-dense, and unforgiving. We hire people with high agency and high urgency. We look for slope over intercept. We care less about where you trained and more about what you’ve built. At Ramp, everyone is a builder who owns problems end to end and makes consequential decisions that shape the outcome. The median Ramp customer saves 5% and grows revenue 16% in their first year – far in excess of businesses operating without Ramp. We believe every ambitious company deserves the same. If you want to build systems that directly shape how companies move and manage billions, Ramp is the place to do it. About the Role We are looking for a Senior Application Engineer primarily focusing on Salesforce.com and integrations with other systems in our stack. The engineer will work with various stakeholders and cross-functional teams to deliver solutions to scale our business. The overall goal and opportunity is to bring architectural and engineering maturity to our business systems. The role sits in the growth engineering function within the business systems engineering team. What You’ll Do Design, develop, test and deploy applications on Salesforce Platform Design

Who we are: Sardine is the leading agentic risk platform for fighting financial crime. Our integrated solution unifies data across risk teams to help organizations stop fraud in real time, prevent AI-driven attacks, and automate fraud and AML operations. Sardine’s platform is strengthened by one of the fastest-growing fraud consortiums in the market, spanning more than 6 billion profiled devices, 800 million consumers, and 3 million businesses worldwide. Leading companies including FIS, GoDaddy, Intuit, Edward Jones, ZoomInfo, and Checkout.com rely on Sardine to secure and grow trust in their products. Our culture: We hire talented, self-motivated individuals with extreme ownership and high growth orientation. We value performance and not hours worked. We believe you shouldn't have to miss your family dinner, your kid's school play, friends get-together, or doctor's appointments for the sake of adhering to an arbitrary work schedule. We're a remote-first team spread across time zones, so no office to report to - work from wherever helps you do your best work. Just a couple of things to keep in mind: pay is based on where you're located, and you'll need to keep a home base in the country you're hired in. So while we love the "coffee shop today, mountains tomorrow" life, this isn't a passport-optional, work-from-anywhere-on-Earth kind of remote - think flexible within your country, not borderless. Location: Remote - United States The role Sardine makes risk and payment decision

About the role We are looking for a Sr. Full Stack Application Security Engineer with deep expertise in mobile application security to join our Product Security team. This role is hands-on and impact driven. You will work directly with mobile, backend, and platform engineering teams to identify, prevent, and remediate security issues across our iOS, Android, API, and backend systems. You will operate close to the code and close to the product. That means reviewing architectures across the stack, influencing secure design decisions early, and helping teams ship features safely without slowing delivery. This role is for someone who understands how modern distributed systems and mobile apps are built, deployed, and attacked in real-world environments. While mobile application security is a core focus, you will be part of a team that owns security posture across the full application stack including APIs, backend services, identity and authentication flows, and CI/CD pipelines. In this role, you can expect to Build and improve security capabilities, automation, and guardrails for mobile applications and backend/API services Perform application or API/backend penetration testing Identify, triage, and help remediate vulnerabilities across Chime products Partner closely with engineering and product teams to embed security into the development lifecycle across mobile apps, APIs, and backend services Perform architecture and code reviews across the stack (iOS/Android, APIs, backe

As a Senior Security Engineer within Application Security at Datadog, you will help secure emerging application architectures where established security patterns may not yet exist, including agentic applications, LLM-enabled products, protocol-driven tool use, and untrusted execution environments. You will establish and validate security models, requirements, and controls while partnering with product and platform teams to develop secure-by-default approaches. Your work will address evolving trust boundaries, agent identity, data access, tool permissions, and runtime behavior through threat modeling, security solutions, and practical implementation. You will have the opportunity to shape how Datadog safely supports new application paradigms and address emerging security risks before they become systemic. At Datadog, we place value in our office culture - the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them. What You’ll Do: Define security models, requirements, and guardrails for emerging application architectures where established patterns are incomplete or do not yet exist. Design, implement, and validate practical security controls that reduce risk in emerging architectures and high-risk system behaviors. Shape how emerging systems authenticate, authorize actions, isolate workloads, and access data, applying least-privilege principle

The Role As a Senior Application Security Engineer, you will provide hands-on technical delivery for the migration of Web Application Firewall (WAF) capabilities to Cloudflare and/or Akamai. You will work closely with architecture, security, network, and application teams to execute migration waves, onboard applications, implement security policies, and support successful cutovers. You will play a key role in validating functionality, security, and performance, resolving technical issues, and supporting post-migration stabilization across complex enterprise environments. What You’ll Do Deliver end-to-end WAF migrations to Cloudflare and/or Akamai, including configuration, application onboarding, and deployment. Implement and tune WAF security policies, rules, and controls in line with application and security requirements. Execute DNS and traffic-routing changes and support integrations required for successful application migration. Perform testing, troubleshooting, and validation to confirm functionality, security, and performance throughout migration waves. Partner with architecture, security, network, and application teams to support cutover activities, resolve technical issues, and stabilize services following migration. What We’re Looking For 10+ years of relevant experience in network security, application security, infrastructure engineering, or related technical roles, with substantial hands-on WAF experience. Strong hands-on experience configuring, migrating, and sup

As a Senior Application Support Engineer you will play a critical role in ensuring the operational efficiency, stability and availability of complex application systems. You will contribute significantly to operational success, refine your expertise in incident management and DevOps and leave a lasting impact on the delivery of inventive solutions to our clients. Job responsibilities You will use your skills in incident management processes and tools, application monitoring metrics and tooling to generate reports and take corrective actions. You will understand complex application systems and find your way through them to debug a business impacting issue. You will follow standards and best practices to bring operational efficiencies, stability and availability of the system. You will use continuous delivery practices to evolve, support and deliver high-quality software, as well as value to end customers, as early as possible while working in a collaborative, value-driven teams to build innovative customer experiences for our clients. You will leverage your knowledge regarding the different logging techniques (various levels) and use them for alerting, monitoring and identifying the root cause of incidents. You will efficiently use DevOps tools and practices to deploy and run software. You will act as a mentor for less experienced peers through both your technical knowledge and leadership skills. You will apply the latest technology thinking from our Technology Radar to solve

At Beyond Finance, we've made it our mission to help everyday Americans escape the endless cycle of crippling debt and step into a brighter financial future. Through compassionate, individualized care, a culture focused on compliance and ethics, supportive user-centric technology, and customized financial solutions, we've helped over 1 million clients on their path to a brighter future. While we're proud of what we've already accomplished, we're searching for new collaborators to help us get to the next level! If you're looking to join a forward-thinking, rapidly growing organization with helping people as its number one goal, we want to hear from you. Role Overview As our Application Security Engineer, you will be the primary owner and driver of our application security program. You'll work hands-on with engineering teams to embed secure development practices, improve tooling and automation, and guide security considerations for new features, architectures, and services. This is a high-impact role where you'll shape the future of AppSec at a company that values security as a core part of product quality. What You'll Do Application Security Ownership Lead and evolve the company's application security strategy, roadmap, and day-to-day operations. Serve as the primary AppSec partner for numerous dev teams working on Ruby on Rails web apps, React Native mobile apps, and various other projects including Python and Go. Provide security guidance during design, development, and code

Toradex is a global company strongly focused on engineering & technology. We’re powered by a diverse & uniquely gifted workforce. We pursue the best people to propel our innovative vision of embedded computing and IoT. If you’re interested in being a driving force at an agile technology company, engineering clever computing solutions & helping other companies bring their products to life, we should talk. About Toradex Toradex is a global company specializing in embedded computing solutions. We provide Arm-based System on Modules, Single Board Computers, carrier boards, and industrial software solutions that help customers build robust, secure, and long-lived products faster and with lower technical risk. Our technology is used across industrial automation, robotics, medical devices, transportation, vision, Edge AI, HMI, and other demanding embedded applications. We are looking for a highly experienced technical professional to strengthen our pre-sales capabilities in Japan and help customers turn early product concepts into successful Toradex-based designs. The Challenge Customers do not always come to us with a perfectly defined specification. They may know that they need multiple cameras, industrial connectivity, local processing, a display, low power consumption, fanless operation, long-term availability, and a specific cost target. What they may not yet know is: Which system architecture is appropriate. Which processor and module best fit the application. Whic

Here at Appian, our values of Intensity and Excellence define who we are. We set high standards and live up to them, ensuring that everything we do is done with care and quality. We approach every challenge with ambition and commitment, holding ourselves and each other accountable to achieve the best results. When you join Appian, you’ll be part of a passionate team dedicated to accomplishing hard things, together. Senior Application Support Engineer Location: Sydney, Australia Work Model: On-site Are you ready to optimize the systems driving a global enterprise software leader? Resolve critical system challenges, keep foundational applications running flawlessly, and gain deep expertise in enterprise automation. ABOUT THE TEAM The Appian Business Technology team is the strategic engine driving our internal corporate infrastructure forward. We build, optimize, and scale the mission-critical systems that empower Appian employees globally, ensuring our internal operations mirror the high-performance capabilities of our market-leading technology. THE OPPORTUNITY This is a high-impact opportunity for an experienced technology professional to lead the support and evolution of applications built on Appian’s advanced platform. You will solve complex technical challenges, drive best practices, and influence solutions across AI-Powered Process Automation and Enterprise-Grade Orchestration. You’ll partner with developers and business stakeholders across CRM and HR domains

At Rockstar Games, we create world-class entertainment experiences. Become part of a team working on some of the most rewarding, large-scale creative projects to be found in any entertainment medium - all within an inclusive, highly-motivated environment where you can learn and collaborate with some of the most talented people in the industry. Rockstar is on the lookout for a passionate Senior Security Platform Engineer who is skilled at diving into complex software designs to identify security flaws and vulnerabilities. This is a full-time, in-office position based out of Rockstar’s NYC headquarters in Downtown Manhattan. WHAT WE DO The Rockstar Games Application Security team partners with numerous development teams across the company to incorporate security practices throughout the software development lifecycle. We strive to understand the threat landscape affecting our development studios, the gaming industry, and the world at large to define secure development standards and guidelines to safeguard our business and protect our players. We independently assess our application code and builds through various techniques (static analysis, dynamic analysis, software composition analysis, etc.) to identify potential vulnerabilities and design flaws and work with development teams to remediate. RESPONSIBILITIES Architect and support secure software development lifecycle operations embedded in software development pipelines. Provide technical security guidance to dev

Senior Software Application Development Engineer — 2 Locations. Apply via Workday.

Senior Manager - Application Development Engineerin — 13 Locations. Apply via Workday.