Senior Application Developer jobs in Seattle – Browse 779 openings on RoboApply Jobs

Senior Application Developer jobs in Seattle

Open roles matching “Senior Application Developer” with location signals for Seattle. 779 active listings on RoboApply Jobs.

779 jobs found

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companyCollabera Inc. logo
Full-time|On-site|Seattle

Join our innovative team at Collabera Inc. as a Senior Application Developer. In this dynamic role, you will lead the development and implementation of cutting-edge applications, collaborating closely with cross-functional teams to deliver high-quality software solutions that meet our clients' needs.Your expertise will help shape our technology landscape, driving efficiency and enhancing user experience. We are looking for a passionate individual who thrives in a fast-paced environment and is eager to tackle complex challenges.

Oct 5, 2016
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company
Full-time|$190K/yr - $210K/yr|On-site|Read AI - Seattle HQ

About Us:At Read AI, we are an innovative and rapidly growing venture-backed startup dedicated to transforming how individuals interact with information through artificial intelligence. Our platform enhances productivity by summarizing, augmenting, and aggregating data from meetings, chats, and emails, ultimately saving our users valuable time. With over one million active users monthly, we are on an exciting journey of expansion and are seeking passionate individuals who share our commitment to innovation and making a meaningful impact.We embrace diversity and inclusivity in our work environment, valuing the unique perspectives and experiences of every team member. We encourage applications from individuals of all backgrounds and abilities.The Role:As a Senior Software Engineer within our Enterprise Applications team at Read AI, you will be pivotal in developing and maintaining the backend services that drive our enterprise product solutions. Your collaboration with cross-functional teams will be essential as you design, develop, and deploy scalable and reliable backend solutions tailored to meet the specific needs of our enterprise clients.Responsibilities:Collaborate with cross-functional teams to architect and develop scalable and reliable backend services and APIs for our enterprise clients.Take ownership of vital components of our enterprise systems from conception through deployment and ongoing maintenance.Develop features that enhance the management and monitoring capabilities of our platform for enterprise IT administrators.Implement quality assurance best practices, including unit and integration testing.Establish robust authentication and authorization mechanisms to safeguard data security and user privacy.Optimize data processing pipelines and storage solutions to accommodate enterprise-level data requirements.Seamlessly integrate third-party services and data sources into our platform.Monitor, troubleshoot, and resolve infrastructure and operational issues to guarantee maximum uptime and reliability for our enterprise customers.Continuously assess and implement best practices, tools, and technologies to enhance the scalability, reliability, and maintainability of our systems.

Feb 11, 2026
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companyProsidian Consulting logo
Full-time|On-site|Seattle

Join our dynamic team at Prosidian Consulting as an IT Service Management (ITSM) IT Specialist focused on Applications Development. In this pivotal role, you will leverage your technical expertise to enhance our IT service management processes and application development efforts. You will work collaboratively with cross-functional teams to deliver innovative solutions that meet our clients' needs.

Jul 24, 2019
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companyAxon Enterprise, Inc. logo
Full-time|$148.5K/yr - $237.6K/yr|Hybrid|Seattle, Washington, United States

Become a Catalyst for Positive Change at Axon.At Axon, our mission is to safeguard lives. We tackle the most pressing safety and justice challenges using our innovative ecosystem of devices and cloud software. Our collaborative environment thrives on open communication and diverse perspectives, fostering connection among our customers, communities, and each other.Working at Axon is dynamic, rewarding, and impactful. Here, you'll take initiative and contribute to meaningful change. Embrace continuous growth while dedicating your efforts to a mission that truly matters in an organization that values your contributions.Your Role and ContributionsAs a Senior Application Security Engineer, you will lead security initiatives that are integrated throughout the software development lifecycle. This position focuses on empowering development teams with the necessary tools, knowledge, and processes to create secure applications. You will collaborate closely with developers as a security partner, enhancing our security posture while ensuring speed and innovation.Utilizing your robust software development background and application security expertise, you will create scalable security automation and tooling. This role is ideal for someone who is enthusiastic about process automation, team enablement, and tackling complex security challenges at scale.

Mar 27, 2026
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companyComtech LLC logo
Full-time|On-site|Seattle

In-person interviews are required for this position.Position OverviewAs a .NET Architect / Senior Developer, you will play a pivotal role in shaping and guiding the future of our application architecture. You will collaborate closely with development and project teams to devise innovative technical solutions for complex challenges.Your primary responsibilities will include mentoring technical staff, ensuring adherence to design standards, and leading the analysis, design, and implementation of new or modified web applications. You will also be instrumental in formulating recommendations for technology decisions in collaboration with business partners.

Sep 8, 2017
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companyusm2 logo
Full-time|On-site|Seattle

We are seeking a skilled Security Application Engineer to join our dynamic team at usm2. In this role, you will be responsible for developing and implementing security measures for our applications, ensuring the integrity and safety of our software systems. You will work closely with cross-functional teams to identify vulnerabilities and recommend effective solutions.

Oct 18, 2016
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companyAxon logo
Full-time|$148.5K/yr - $237.6K/yr|Hybrid|Seattle, Washington, United States

Join Axon and make a difference in the world.At Axon, we are dedicated to our mission of protecting life. We tackle the most urgent safety and justice challenges in society through our innovative ecosystem of devices and cloud software. Our collaborative culture thrives on open communication and diverse perspectives, ensuring we connect with our customers, communities, and each other effectively.Working at Axon means engaging in a dynamic and impactful environment. Here, you will take charge and lead transformative initiatives. Experience continuous growth while contributing to a mission that truly matters at a company that values you.Your ImpactAs a senior engineer, you will play a crucial role in the architectural decisions that will define our product. Your passion for device software, which demands high stability and exceptional performance, will be evident. You will utilize the latest open-source technologies and your system design expertise to make sound technical choices for a robust system.You will adeptly navigate engineering trade-offs while empathizing with customers to develop innovative solutions to their challenges. Collaborating closely with product managers and designers, you will ensure we create effective solutions that truly meet customer needs. Additionally, you will mentor fellow engineers, sharing your hands-on knowledge to elevate the skills of your teammates.Join a committed team of professionals driven to positively impact the lives of first responders and those they serve.

Mar 27, 2026
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companyBrex logo
Full-time|$192K/yr - $240K/yr|On-site|Seattle, Washington, United States

Why Join UsAt Brex, we are revolutionizing the financial landscape with our AI-powered spend platform. We empower companies to manage their expenditures with confidence through integrated corporate cards, banking solutions, and global payment systems, all complemented by intuitive software for travel and expenses. Our innovative approach is trusted by tens of thousands of businesses, from dynamic startups to established enterprises, including industry leaders like DoorDash, Flexport, and Compass, to effectively control spending, lower costs, and enhance operational efficiency on a global scale.Joining Brex means embracing a culture that encourages pushing boundaries, questioning the norm, and collaborating with some of the brightest minds in the tech industry. We are dedicated to fostering a diverse workforce and an inclusive environment where your aspirations are only limited by your imagination. We provide you with the tools, resources, and support to cultivate your career and achieve your fullest potential.Engineering at BrexAt Brex, our engineering philosophy is centered on building scalable systems with purpose and agility. Our teams, which encompass Software, Data, Security, and IT, operate with high levels of autonomy and collaboration. We tackle challenging technical issues, take ownership of our results, and strive for excellence in every aspect, from architecture to deployment. Here, engineering is treated as a craft, allowing builders to emerge as leaders.What You’ll DoAs a Senior Application Security Engineer, your primary focus will be on identifying and addressing security vulnerabilities across the Brex platform. You will conduct code and design reviews, perform penetration testing, and manage vulnerabilities. Additionally, you will develop and maintain tools for static and dynamic testing of the Brex platform, as well as support secure developer workflows. As part of the broader Financial Scale organization, you will collaborate closely with Security Operations, GRC, Product Security, Front End Platform, and IT Infrastructure teams.We are seeking candidates with a robust background and a keen interest in penetration testing. You should demonstrate a proven ability to uncover vulnerabilities in complex systems and create exploits to illustrate their potential business impact. This role is highly collaborative and cross-functional, providing you with the opportunity to work alongside various engineering teams at Brex. You should be passionate about engaging with diverse backgrounds, roles, and needs, recognizing that building a world-class financial service necessitates world-class security.Brex is at the forefront of pioneering AI-driven financial services for dynamic, high-impact companies such as Coinbase, Robinhood, and Anthropic. As we embark on the initial stages of integrating AI throughout our product offerings, this role will play a vital part in influencing and shaping the future of financial technology.

Feb 19, 2026
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companyAxon logo
Full-time|$141K/yr - $225.6K/yr|Hybrid|Seattle, Washington, United States

Become a Force for Good with Axon.At Axon, our mission is to Protect Life. We are pioneers addressing society's most pressing safety and justice challenges through our integrated devices and cloud software. Like our innovative products, we thrive on collaboration, embracing diverse perspectives from our clients, communities, and each other.Working at Axon is dynamic, demanding, and rewarding. Here, you will take initiative and effect meaningful change. Continuously evolve while dedicating your efforts to a cause that truly matters at a company where you are valued. Your ImpactAs a vital member of a high-performing software engineering team, you will develop embedded software for Axon's devices, ensuring critical evidence is captured during essential moments for our clients. This role offers a chance to collaborate with skilled software and firmware engineers, contributing to the advancement of next-generation public safety products, such as body-worn cameras, in-car cameras, wireless microphones, and more.In your role, you will play a key part in architectural decisions that influence our products. Your commitment is to build device software that emphasizes high stability, rapid responsiveness, and consistent performance. You enjoy working with the latest open-source technologies and can apply your system design expertise to make sound technical choices for a robust system.You have the ability to navigate competing engineering trade-offs with empathy for customer needs, allowing you to propose innovative solutions to their challenges. Working closely with product managers and designers, you will ensure we are developing the right solutions for our customers. Additionally, you take pleasure in mentoring fellow engineers and relish the opportunity to elevate the capabilities of your team.Your primary responsibilities as an Embedded Application Software Engineer will include designing, developing, testing, and maintaining embedded applications and network configurations, along with the supporting systems and libraries, while interfacing with cloud and firmware services for our devices. Join us in making a significant difference in the lives of first responders and the communities they serve.

Mar 27, 2026
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companyAYR Global IT Solutions Inc. logo
Senior Android Developer

AYR Global IT Solutions Inc.

Contract|On-site|Seattle

We are seeking an experienced Senior Android Developer to join our dynamic team in Seattle, WA. This is a 12+ month contract position that offers the opportunity to work on innovative mobile applications that enhance user experiences and drive business success.The ideal candidate will have a solid background in mobile app development, specifically on the Android platform, with a strong grasp of client-server architecture and a passion for delivering exceptional customer experiences.

Jul 26, 2017
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companyComtech LLC logo
Full-time|On-site|Seattle

Join our dynamic team at Comtech LLC as a Senior Java Developer. In this role, you will utilize your expertise in Java programming to design, develop, and maintain high-quality software solutions. You will be an integral part of our development team, contributing to innovative projects that drive our business forward.

Sep 27, 2016
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companyCareerguidant logo
Full-time|On-site|Seattle

We are seeking a talented and experienced Senior .NET Developer to join our dynamic team at Careerguidant in Seattle. In this role, you will leverage your extensive knowledge of .NET technologies to design, develop, and maintain high-quality software applications. Collaborating closely with cross-functional teams, you will play a key role in delivering innovative solutions that meet our customers' needs.

Oct 27, 2016
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companyFabergent logo
Full-time|On-site|Seattle

The Senior Mobility Architect will play a pivotal role in defining the technical strategy and designing enterprise-grade mobile applications for our esteemed Fortune 500 clientele. As part of a highly skilled and globally recognized mobility team, you will engage with top-tier talent in mobile usability, design, development, and quality assurance. Your collaboration with cross-functional project teams will drive the creation of mobile applications that ensure seamless integration with enterprise systems across desktop, tablet, and mobile platforms.Working closely with internal senior management and technical leaders from our client organizations, you will leverage your extensive experience in enterprise application development and mobile technologies to architect, design, and deliver cutting-edge mobile solutions. You will lead distributed development teams to launch exceptional mobility products while bringing your deep knowledge of enterprise solutions, including service-oriented architectures, security protocols, identity management, data encryption, and cross-platform frameworks.

Sep 11, 2017
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companyCollabera logo
Full-time|On-site|Seattle

Are you passionate about crafting exceptional web applications? Join our dynamic team as a Senior Web Developer and leverage your expertise to build innovative solutions that enhance user experiences. You will play a pivotal role in developing high-quality web applications, collaborating with cross-functional teams, and driving technical excellence.

May 11, 2016
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company
Full-time|$110K/yr - $180K/yr|On-site|Read AI - Seattle HQ

About Us:At Read AI, we are a rapidly growing, venture-backed startup dedicated to leveraging artificial intelligence to transform the way individuals engage with information. Our innovative product empowers users to efficiently summarize, enhance, and consolidate data from meetings, chats, and emails, ultimately saving time and enhancing productivity. With over a million active monthly users, we are on a continuous growth trajectory and are seeking passionate individuals who share our commitment to innovation and making a meaningful impact.We prioritize creating a diverse and inclusive workplace where every voice is heard and valued. We warmly welcome candidates from all backgrounds, abilities, and experiences to apply.The Role:As a Backend Software Engineer for Enterprise Applications at Read AI, you will be instrumental in developing and maintaining the backend services that drive our enterprise product offerings. You will work closely with cross-functional teams to design, implement, and deploy scalable and dependable backend solutions tailored to meet the diverse needs of our enterprise clients.

Apr 10, 2025
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companyComtech LLC logo
Contract|On-site|Seattle

We are seeking a highly skilled Senior Software Development Manager to lead our innovative software development team. In this role, you will oversee the software development lifecycle, ensuring the delivery of high-quality software solutions that meet our clients' needs. You will collaborate with cross-functional teams to define project scope, objectives, and deliverables, while also mentoring and guiding team members to reach their full potential.

Feb 24, 2017
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companyDoorDash, Inc. logo
Full-time|$163.2K/yr - $240K/yr|Hybrid|Seattle, WA; Washington, DC; Austin, TX; Baltimore, MD; Chicago, IL; Denver, CO; Hartford, CT; New Haven, CT; Philadelphia, PA; Miami, FL; Atlanta, GA; Tempe, AZ

Join Our Innovative TeamAt DoorDash, we are committed to building top-tier products that empower local commerce on a global scale. The People Applications team is pivotal in crafting and scaling proprietary (1P) solutions that enhance every aspect of the employee journey, from recruitment to offboarding. Our applications are utilized across all DoorDash brands, including Wolt and Deliveroo.Your Role as Engineering ManagerWe are looking for a dynamic Engineering Manager to lead our People Applications team. If you have a proven track record in developing and scaling applications in talent acquisition, compensation, and employee experience, we want to hear from you!As an Engineering Manager, you will be instrumental in shaping the future of our People platform. You will lead the integration of AI technologies and evolution of our 1P products to enhance efficiency, foster innovation, and improve the overall employee experience.This is a highly collaborative role that will involve setting both the technical direction and product strategy, ensuring our solutions are aligned with the objectives of DoorDash’s people team while delivering exceptional, impactful experiences to our employees across all brands.This is a hybrid role reporting to the Senior Manager, Enterprise App Engineering.

Mar 30, 2026
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company
Full-time|$190K/yr - $210K/yr|On-site|Read AI - Seattle HQ

About the Role:Join our dynamic Mobile Team at Read AI, where we are on a mission to capture and process high-value audio data for our innovative applications. We are dedicated to delivering intelligent, real-time insights across diverse use cases, and we thrive on creativity, collaboration, and technical excellence. Our mobile applications for iOS and Android empower users to capture audio instantly and receive AI-generated transcripts and summaries in real time, ensuring they remain present and engaged in conversations. As we broaden user interactions with Read AI, we are committed to crafting a seamless cross-device experience, allowing users to record, watch, and access Read AI wherever they are.We are seeking a Senior Mobile Engineer who will take significant ownership of our mobile applications and help shape the future of Read AI. This role is critical in scaling high-performance, AI-driven experiences to a wider audience. You will collaborate closely with product, design, and machine learning teams to develop new capabilities, while also raising the standard through mentorship, technical leadership, and robust engineering practices.If you are passionate about creating fast, reliable mobile products and making a real-world impact through AI, we would love to hear from you!Key Responsibilities:Lead major feature areas end-to-end on both iOS (Swift, SwiftUI) and Android (Kotlin, Jetpack Compose), from technical design to implementation, testing, rollout, and iteration.Drive the development of new mobile features and product enhancements, coordinating execution and aligning stakeholders on scope, tradeoffs, and timelines.Enhance real-time audio capture and processing across platforms, utilizing AVFoundation (iOS) and Android audio frameworks to ensure high-quality recordings and accurate transcriptions.Optimize app performance, reliability, battery efficiency, and latency to deliver smooth, real-time AI-powered transcription and summarization.Design and implement AI-driven mobile interactions, including chat-based experiences that enable users to explore, query, and act on meeting reports and insights.Collaborate closely with product, design, and ML teams to prototype and launch innovative mobile UX patterns for conversational AI, making complex information intuitive, fast, and actionable.Evolve mobile architecture patterns, ensuring scalability and maintainability.

Jan 7, 2026
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companyusm2 logo
Full-time|On-site|Seattle

Join our dynamic team at usm2 as a Windows Phone Developer. In this role, you will leverage your expertise to design, develop, and maintain innovative mobile applications for Windows Phone platforms. Collaborate with cross-functional teams to deliver high-quality software solutions that enhance user experiences.

Sep 22, 2016
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companyComtech LLC logo
Contract|On-site|Seattle

Position: Senior .NET Developer and ArchitectLocation: Seattle, WAContract Duration: 12 MonthsNote: This position is open only to US Citizens and Green Card holders (locals only).Job Overview:We are seeking an accomplished Senior .NET Developer and Architect with over 8 years of extensive experience in application development and programming. The ideal candidate will possess a strong background in designing, developing, and supporting REST APIs at scale.Key Responsibilities:• Design and develop robust REST APIs• Utilize advanced knowledge of C# and .NET Framework, with emphasis on application architecture• Apply deep understanding of design patterns and object-oriented design principles• Engage with distributed systems and architectures, including SOA, SaaS, and microservices• Manage both relational and non-relational databases, including NoSQL solutions• Leverage experience with Tier 1 cloud platforms, preferably Azure or AWS• Preferred experience with Azure ServiceBus, DocumentDB, nServiceBus, and MSMQ• Demonstrate capability in building disconnected applications using MSMQ (1+ year preferred)Qualifications:• Proven track record of collaborating successfully with other engineers in a full-stack Agile delivery team• Exceptional communication skills, both verbal and written• Strong analytical and problem-solving abilities.

Aug 28, 2017

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