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Senior Software Engineer - Java/Kotlin Jobs

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Senior Software Engineer
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Join BillionToOne in Menlo Park as a Senior Software Engineer. Leverage 5+ years of experience with Python (Django/Flask) and AWS to build transformative diagnostics platforms. Collaborate in a transparent culture to develop scalable backend systems and AI-driven solutions that redefine healthcar...
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United States , Menlo Park
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190081.00 - 211201.00 USD / Year
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BillionToOne
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Senior Software Engineer, Digital Experiences
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Join BillionToOne in Menlo Park as a Senior Software Engineer to transform healthcare diagnostics. You will build robust applications using React, TypeScript, and Django in a collaborative, transparent culture. This role requires 5+ years of experience and offers the chance to deliver 10x better ...
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United States , Menlo Park
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190081.00 - 211201.00 USD / Year
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BillionToOne
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Senior Software Engineer, Prenatal
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Join BillionToOne in Menlo Park as a Senior Software Engineer, Prenatal. Design and build scalable backend services and APIs using Django, FastAPI, and AWS. Collaborate in-person with a brilliant team to transform prenatal diagnostics through cutting-edge software. Enjoy a transparent culture and...
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United States , Menlo Park
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190081.00 - 211201.00 USD / Year
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BillionToOne
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Senior Software Engineer – AI
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Join NStarX in Hyderabad as a Senior AI Software Engineer. Lead the design and deployment of cutting-edge Generative AI solutions using frameworks like LangChain and Hugging Face. Mentor a team and build scalable, production-grade GenAI applications on major cloud platforms. Enjoy a competitive s...
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India , Hyderabad
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Not provided
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NStarX
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Senior Software Engineer
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Seeking a Senior Software Engineer with 5+ years on the Microsoft stack (C#, .NET Core, SQL). Design and build robust applications using modern web technologies in a flexible remote/hybrid culture. Join an Agile team to develop high-quality solutions while benefiting from a supportive, inclusive ...
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Blackbaud
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Senior Software Engineer
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Join BlackLine as a Senior Software Engineer in Bengaluru. You will design and build the next-gen application platform, focusing on SAP S/4HANA Cloud integration and Business Objects. We seek a Java expert with 6+ years in cloud microservices, RESTful APIs, and strong OO design. Enjoy a supportiv...
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India , Bengaluru
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BlackLine
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Senior Software Engineer
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Join JFrog in Netanya or Tel Aviv as a Senior Software Engineer. Drive innovation in DevGovOps and Software Supply Chain Security for a leading SaaS platform. Utilize your 5+ years of backend expertise in Golang/Java to build scalable, cloud-native microservices. Thrive in a dynamic, startup-like...
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Israel , Netanya; Tel Aviv
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JFrog
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Senior Software Engineer - JFrog Fly
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Join JFrog's new Fly initiative as a Senior Software Engineer in Netanya/Tel Aviv. Design and build scalable, cloud-native microservices using Golang/Java/Node.js for an innovative SaaS product. Leverage your 5+ years of backend expertise with Docker, Kubernetes, and modern architectures in a dyn...
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Israel , Netanya/Tel Aviv
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JFrog
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Senior Software Engineer
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Join JFrog's Runtime team as a Senior Software Engineer in Netanya/Tel Aviv. Design and develop a scalable MLOps platform using Kubernetes and cloud technologies. Lead architectural decisions and mentor engineers in a Fortune 100-trusted environment.
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Israel , Netanya/Tel Aviv
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JFrog
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Senior Software Engineer in Test
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Join Axon's mission to protect life as a Senior SDET in London. You will architect test infrastructure and lead automation for mission-critical, AI-powered public safety platforms. This role requires 7+ years' experience in test automation, proficiency in languages like Python/Java, and expertise...
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United Kingdom , London
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Axon
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Senior Software Engineer - Front End
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Seeking a Senior Front End Engineer in Seattle to build scalable, high-performance web applications. You'll leverage expertise in React, TypeScript, and modern tooling to drive technical architecture and mentor a collaborative team. This role offers a competitive package including base pay, bonus...
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United States , Seattle
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141000.00 - 225600.00 USD / Year
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Axon
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Senior Software Engineer (Node.js) - Accommodations
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Join our new Accommodations team in Berlin as a Senior Software Engineer (Node.js/Go). Design and build scalable backend systems for our Omio for Business travel platform. Enjoy benefits like a meal allowance, MultiSport card, and extra vacation days in a collaborative, agile environment.
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Germany , Berlin
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FoodLabs & Atlantic Labs
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Senior Software Engineer
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Join Intercom in Dublin as a Senior Software Engineer. Tackle scaling challenges on a robust platform using Ruby, AWS, and distributed systems. Collaborate in a multidisciplinary team to build full-stack features that impact millions. Enjoy competitive salary, equity, comprehensive benefits, and ...
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Ireland , Dublin
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Intercom
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Senior Software Engineer - Data Team
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Join our Data Team in Barcelona or Madrid as a Senior Software Engineer. Design scalable Python microservices and robust event-driven systems with Kafka. Leverage your expertise in architecture patterns, PostgreSQL, and third-party integrations. Enjoy stock options, health insurance, and a flexib...
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Spain , Barcelona; Madrid
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50000.00 - 70000.00 EUR / Year
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Fever
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Senior Software Engineer
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Join Checkr as a Senior Software Engineer in Santiago, Chile. Develop high-impact ATS integrations using Ruby, Java, or Python within a microservices architecture. Enjoy a collaborative US-based environment with full medical coverage, learning allowances, and extra vacation days. Help build faire...
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Chile , Santiago
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45900000.00 - 54000000.00 CLP / Year
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Checkr
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Senior Software Engineer, Checkr Trust
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Join Checkr Trust in San Francisco as a Senior Full Stack Engineer. Build scalable products for trust & safety using Ruby on Rails and React. Enjoy a startup culture with full benefits, ownership, and impact on a platform serving millions.
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United States , San Francisco
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173000.00 - 215000.00 USD / Year
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Checkr
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Senior Software Engineer
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Join T-Mobile as a Senior Software Engineer to design and deploy scalable full-stack solutions. Leverage your expertise in Java, React, Kubernetes, and cloud technologies in a collaborative team. Enjoy competitive compensation, stock grants, and comprehensive benefits in Bellevue, Frisco, or Over...
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United States , Overland Park; Frisco; Bellevue
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113600.00 - 205000.00 USD / Year
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T-Mobile
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Senior Software Engineer – GTM Systems
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Join Intercom as a Senior Software Engineer for GTM Systems in Chicago. Design and build scalable internal systems using Python, SQL, and Salesforce. Leverage data tools like Snowflake and DBT, and work on AI-driven tooling. Enjoy competitive compensation, comprehensive benefits, and a collaborat...
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United States , Chicago
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185000.00 - 220000.00 USD / Year
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Intercom
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Senior Software Engineer – GTM Systems
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Join our GTM Systems team as a Senior Software Engineer in San Francisco. You will build scalable tools on Salesforce and Snowflake, using Python, SQL, and Apex. Translate business needs into technical solutions and shape how revenue teams operate. Enjoy competitive pay, equity, comprehensive ben...
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United States , San Francisco
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207000.00 - 247000.00 USD / Year
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Intercom
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Senior Software Engineer, Infrastructure
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Shape the future of law enforcement infrastructure as a Senior Software Engineer. Design self-service PaaS solutions and cloud-native systems using IaC tools like Terraform. Join our distributed team in Seattle or Boston to build scalable, reliable platforms that support public safety. Enjoy top ...
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United States , Seattle; Boston
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141000.00 - 225600.00 USD / Year
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Axon
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Explore senior software engineer jobs specializing in Java and Kotlin, a high-demand career path for experienced developers who architect and build robust, scalable software systems. Professionals in this role are pivotal in transforming complex business requirements into efficient, reliable, and maintainable applications. Typically, they engage in the full software development lifecycle, from conceptual design and technical specification to implementation, testing, deployment, and ongoing optimization. A core responsibility involves making critical architectural decisions, often designing and implementing microservices, APIs, and cloud-native solutions that form the backbone of modern digital products. Senior software engineers in the Java/Kotlin ecosystem commonly shoulder a wide array of duties. They design and develop high-performance backend services, distributed systems, and data processing pipelines. Ensuring code quality is paramount; they rigorously write unit and integration tests, conduct thorough code reviews, and advocate for best practices in clean code and design patterns like MVC. Collaboration is a key aspect, as they frequently work alongside cross-functional teams including product managers, UX/UI designers, DevOps specialists, and other engineers to deliver cohesive user experiences. Furthermore, they often provide technical leadership, mentoring junior developers, driving technical discussions, and contributing to strategic planning and knowledge-sharing initiatives. The typical skill set for these jobs is extensive. Mastery of Java and/or Kotlin is fundamental, complemented by deep knowledge of JVM internals, concurrency, and memory management. Proficiency with popular frameworks such as Spring Boot, Micronaut, or Quarkus is highly valued. These roles require strong experience with both SQL (e.g., PostgreSQL, MySQL) and NoSQL (e.g., MongoDB, Cassandra) databases, as well as expertise in designing RESTful and often GraphQL APIs. Familiarity with cloud platforms (AWS, Azure, GCP), containerization (Docker, Kubernetes), and CI/CD pipelines is standard for deploying and managing applications. A strong understanding of software architecture principles, including event-driven and serverless designs, is essential. Candidates seeking senior software engineer jobs are generally expected to possess a bachelor's degree in computer science or a related field, along with 5+ years of professional development experience. Beyond technical acumen, success in this senior role demands excellent problem-solving abilities to debug complex issues, a proactive approach to learning emerging technologies, and strong communication skills to articulate technical concepts to both technical and non-technical stakeholders. This career offers the opportunity to work on challenging problems, influence technology stacks, and build systems that serve millions of users, making it a cornerstone role in the technology industry.

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