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Senior Software Engineer - Application Engineer Jobs

3412 Job Offers

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Axway B2B Senior Software Engineer
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Seeking a Senior Axway B2B Software Engineer in Noida. This role demands strong Unix/Linux, SQL, and networking skills for L2/L3 support and production upgrades. Expertise in Track & Trace products, especially Axway, and the healthcare serialization domain is essential. You will engage directly w...
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India , Noida
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Sopra Steria
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Senior JVM Software Engineer
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Seeking a Senior JVM Software Engineer in Warsaw for a hybrid role. Drive feature development (70% BE/30% FE) using Java, Spring Boot, React, and PostgreSQL. Enjoy flexible hours, a cafeteria system, and a supportive culture with technical mentoring. Join a telecom project requiring 4+ years of f...
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Poland , Warsaw
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Inetum
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Senior iOS Software Engineer
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Join our Warsaw team as a Senior iOS Software Engineer, also leveraging Android expertise. Develop innovative mobile solutions using Swift, Kotlin, and modern architectures like MVVM and SwiftUI. Enjoy a hybrid model, flexible hours, and a rich benefits package including mentoring and a cafeteria...
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Poland , Warsaw
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Inetum
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Senior Python Software Engineer
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Join Inetum Polska as a Senior Python Software Engineer in Warsaw. Develop AI-driven microservices with Python, FastAPI, and PostgreSQL on Azure. Enjoy a hybrid model (3 days office/week), flexible hours, and strong mentorship in an innovative team.
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Poland , Warsaw
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Inetum
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Senior Software Engineer
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Join UpGuard's mission to protect the world's data as a Senior Software Engineer. Design and build highly scalable SaaS features in a green-fields environment, using React, Go, and Kubernetes. Enjoy a hybrid/remote role from major Australian cities, with a collaborative team that values impact an...
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Australia , Sydney; Melbourne; Hobart; Brisbane
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UpGuard
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Freelance Senior Software Engineer
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Seeking a freelance Senior Software Engineer for a remote contract role based in Colombia. You will lead full-cycle development using React.js, Node.js, and AWS. The position requires 6+ years of experience, expertise in modern JavaScript stacks, and fluency in English and Spanish. Join a collabo...
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Colombia
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Seamless.AI
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Freelance Senior Software Engineer
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Seeking a Freelance Senior Software Engineer for a contract role in Costa Rica. Lead full-cycle development using React.js, Node.js, and AWS. Requires 6+ years' experience, fluency in English/Spanish, and expert full-stack JavaScript skills. Deliver high-quality solutions independently in a colla...
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Costa Rica
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Seamless.AI
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Freelance Senior Software Engineer
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Seeking a remote Freelance Senior Software Engineer for contract work. This role requires 6+ years of experience and expertise in React.js, Node.js, and Express.js. Fluency in both English and Spanish is essential. Lead full-cycle development and collaborate on innovative software projects from M...
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Mexico
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Seamless.AI
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Freelance Senior Software Engineer
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Join our team as a Freelance Senior Software Engineer in Uruguay. This contract role requires a bilingual expert (English/Spanish) with 6+ years' experience in full-stack JavaScript (React.js, Node.js). You will lead technical design, development, and deployment on AWS, ensuring high-quality deli...
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Uruguay
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Seamless.AI
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Senior Software Engineer
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Lead the development of high-quality software as a Senior Software Engineer. This remote US role requires 6+ years of experience and expertise in React.js, Node.js, and AWS. You will provide technical leadership, mentor a team, and drive projects using Agile methodologies.
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United States
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Seamless.AI
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Senior Java Software Engineer
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Join our Warsaw team as a Senior Java Engineer. Lead the migration of JBoss systems to a modern Spring Boot cloud environment using Java 17+, Camunda, and Kubernetes. Enjoy a hybrid model, flexible hours, and a rich benefits package including mentoring and a team-building budget. Apply your exper...
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Poland , Warsaw
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Inetum
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Senior Software Engineer
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Join a Cambridge-based quantum computing leader as a Senior Software Engineer. Develop cutting-edge cloud infrastructure using Python, AWS/Azure, and Terraform. Enjoy flexible work, equity, and collaborate with world-class innovators on revolutionary quantum AI and cybersecurity platforms.
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United Kingdom , Cambridge
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Gitmax
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Senior Frontend Software Engineer
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Join KAYAK as a Senior Frontend Engineer in Cambridge, USA. Build the Flights product used by millions, owning UI end-to-end with React/TypeScript. Enjoy great benefits like flexible hours, 4 weeks vacation, and a focus on work-life balance.
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United States , Cambridge
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KAYAK
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Senior Front-End Software Engineer
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Join KAYAK as a Senior Frontend Engineer in Kaunas. You will build innovative checkout flows and B2B platforms using React, TypeScript, and modern tooling. This hybrid role offers global collaboration, career growth funds, and extensive benefits.
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Lithuania , Kaunas
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3333.00 - 6600.00 EUR / Month
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KAYAK
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Senior Network Software Engineer
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Join Aruba, an HPE company, as a Senior Network Software Engineer in San Jose. Develop next-gen packet forwarding solutions, including stateful firewall, SDN, and scalable cloud applications. We seek an expert in C programming, networking protocols, and embedded/cloud systems with 6-10 years' exp...
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United States , San Jose
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133500.00 - 307000.00 USD / Year
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Hewlett Packard Enterprise
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Senior Software Engineer
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Join Fever's Engineering team as a Senior Software Engineer. Develop high-traffic Python applications, work with RESTful APIs, and mentor peers. Enjoy a home office anywhere in Spain, health insurance, and great discounts. Strong English and a focus on code quality are key.
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Spain
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50000.00 - 65000.00 EUR / Year
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Fever
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Senior Software Engineer
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Join Atlassian as a Senior Software Engineer in a distributed-first environment. You will build scalable backend microservices using modern OOP languages and cloud platforms like AWS. This role requires 6+ years of experience and offers ultimate flexibility to work from anywhere.
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Atlassian
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Senior Principal Software Engineer
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Lead large-scale, business-critical projects as a Senior Principal Software Engineer in Bengaluru. You will define long-term architecture for ITSM, leveraging 15+ years of cloud-native SaaS expertise. This role requires deep experience with AWS, distributed systems, and aligning technical solutio...
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India , Bengaluru
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Atlassian
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Senior Software Development Engineer - Routing/SASE
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Join Hewlett Packard Enterprise in San Jose as a Senior Software Development Engineer. You will design and maintain routing protocols like BGP and OSPF for our SASE platform, using your expert C programming skills. This role offers a chance to lead innovative projects within a culture that values...
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United States , San Jose
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117500.00 - 270000.00 USD / Year
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Hewlett Packard Enterprise
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Senior Security Software and System Engineer
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Join HPE's Cybersecurity Lab as a Senior Security Software and System Engineer in Aguadilla. You will design and implement security solutions, conduct penetration testing, and develop automation tools to enhance product and supply chain security. This role requires extensive experience in softwar...
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United States , Aguadilla
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Hewlett Packard Enterprise
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About the Senior Software Engineer - Application Engineer role

Senior Software Engineer - Application Engineer Jobs represent a pivotal and high-impact career path within the technology industry. Professionals in these roles are the architects and builders of the software applications that power modern business and consumer experiences. Unlike roles focused purely on infrastructure or systems programming, Application Engineers specialize in designing, developing, and maintaining the end-user-facing software products, whether they are web applications, mobile apps, or desktop solutions. These jobs demand a blend of deep technical expertise, strategic problem-solving, and a user-centric mindset to translate complex requirements into reliable, scalable, and performant software.

Typically, a Senior Software Engineer in application development shoulders significant responsibility across the entire software development lifecycle. Common duties include architecting robust technical solutions, writing clean and efficient code, conducting thorough code reviews, and collaborating closely with product managers, designers, and other engineers to define and refine features. They are expected to own major components or services, ensuring their long-term health through comprehensive testing, debugging, and iterative improvement. A key aspect of senior-level jobs is technical leadership: mentoring junior engineers, establishing best practices, driving architectural decisions, and fostering a culture of quality and innovation within their teams.

The skill set for these positions is both broad and deep. Proficiency in modern programming languages and frameworks is fundamental—common examples include JavaScript/TypeScript with React or Angular, Python, Java, Kotlin, Swift, or C++, depending on the application domain. Expertise in associated ecosystems, such as state management, build tools, and testing frameworks (e.g., Jest, Cypress), is standard. Senior roles require a strong grasp of software design principles, API design (REST, GraphQL), performance optimization, and security considerations. Experience with version control (Git), CI/CD pipelines, and cloud platforms (AWS, Azure, GCP) is also highly typical. Beyond technical acumen, successful candidates demonstrate excellent problem-solving abilities, proactive communication, and the capacity to navigate ambiguous requirements to deliver tangible value.

Ultimately, Senior Software Engineer - Application Engineer jobs are for seasoned professionals who thrive on turning ideas into reality. They are the driving force behind the digital products we use daily, balancing immediate feature delivery with the strategic foresight to build sustainable, adaptable systems. For those passionate about crafting exceptional user experiences and leading technical excellence, this profession offers a challenging and rewarding career at the heart of technological innovation.

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