Java Backend Developer Jobs

For more than 30 years, SonicWall has delivered a partner-first unified cybersecurity portfolio that helps SMBs, MSPs, and IT teams consolidate network security, endpoint security, security service edge (SSE), and threat response across hybrid environments. By bringing connected technology, real-time threat intelligence, automation, and expert services together, SonicWall helps organizations simplify security operations, achieve better security outcomes, and lower total cost of ownership. Backed by a global ecosystem of more than 17,000 partners, SonicWall delivers enterprise-grade protection built for SMB and mid-market realities. For more information, visit www.sonicwall.com or follow us on X, LinkedIn , Facebook , and Instagram . Job Description We are looking for a Frontend Software Engineer to join our team building next-generation cloud-based cybersecurity solutions. You will contribute to the design, development, and maintenance of modern web applications that help protect customers from evolving security threats. As part of a collaborative engineering team, you will work across frontend and backend technologies, helping deliver scalable and reliable cloud services while building intuitive user experiences. Our development environment spans AWS cloud services and multiple endpoint platforms, providing opportunities to learn and grow across a diverse technology stack. Role and Responsibilities Design, develop, test, and maintain web applications using Vue3.js, Node.js, and TypeScript . Build responsive and user-friendly frontend experiences with a strong focus on usability and performance. Collaborate with product managers, UX designers, QA engineers, and other developers to deliver high-quality features. Troubleshoot issues, debug defects, and participate in improving application reliability and performance. Contribute to code reviews, technical discussions, and engineering best pract

SonicWall is a cybersecurity forerunner with more than 30 years of expertise and is recognized as a leading partner-first company, ensuring our partners and their customers are never alone in the fight against cybercrime. With the ability to build, scale and manage security across the cloud, hybrid and traditional environments in real-time, SonicWall provides relentless security against the most evasive cyberattacks across endless exposure points for increasingly remote, mobile and cloud-enabled users. With its own threat research center, SonicWall can quickly and economically provide purpose-built security solutions to enable any organization—enterprise, government agencies and SMBs—around the world. For more information, visit www.sonicwall.com or follow us on Twitter , LinkedIn , Facebook and Instagram . We are seeking a talented Cloud Application Full Stack Engineer to join our team in developing a cutting-edge cloud application in cybersecurity. As a key member of our engineering team, you will help create an innovative endpoint security solution. Our development environment is truly cross-platform, encompassing a wide range of technologies, including AWS cloud services, Windows, macOS, Linux, ChromeOS, Android, and iOS applications. This unique setup offers you an exceptional opportunity to gain exposure to a diverse array of technologies that few organizations can match. Join us in shaping the future of cybersecurity and expanding your expertise in a dynamic and multi-platform development team. Role and Responsibilities: Develop and maintain robust, scalable, data-intensive, and high-performance web applications using Node.js and Vue3.js. Implement and maintain backend services, APIs, and databases using TypeScript, MongoDB, and Redis. Collaborate with cross-functional teams, including developers, QA, product managers, and designers, to ensure seamless integration of frontend and backend components, de

We are seeking a highly motivated and experienced Lead Java Developer to join our Credit Risk Technology team. This is a hands-on leadership role where you will be instrumental in designing, developing, and deploying robust, high-performance, and large-scale software solutions for Counterparty Credit Risk Management. You will be at the forefront of firm-wide initiatives, leveraging best-in-class software stacks and cutting-edge AI tools to solve complex challenges. You will lead a team of talented engineers, providing technical guidance, fostering innovation, and ensuring the delivery of high-quality, scalable, and resilient software. The ideal candidate is passionate about modern software development practices, proficient with contemporary tech stacks, and eager to utilize artificial intelligence to manage Citi’s exposure to financial institutions, governments, and corporates. This role offers the opportunity to make a significant impact by contributing to critical systems that provide an integrated view of trades, collateral, and market data from numerous sources. Key Responsibilities: Technical Leadership & Hands-On Development: Lead by example, actively contributing to the design, architecture, and hands-on development of critical software components for Counterparty Credit Risk Management leveraging AI tools such as Devin and Co-Pilot Drive technical excellence, ensuring best practices in coding, testing, and deployment are followed for high-performance and large-scale applications. Conduct code reviews, provide constructive feedback, and mentor team members in advanced development techniques. Team Leadership & Management: Supervise work of a team of software engineers Foster a collaborative, innovative, and inclusive team environment focused on tackling challenging firm-wide initiatives. Allocate resources effectively to meet project deadlines an

Modernize business-critical Java platforms and help shape the next generation of financial markets technology. The Role Capco is looking for a Java Developer to join a major technology modernization initiative focused on upgrading business-critical legacy applications and their supporting technology. This is a hands-on back-end engineering role for someone with deep Java experience who enjoys solving the challenges that come with modernizing established platforms. You’ll help refactor and migrate legacy Java 6/8, JBoss and Struts applications towards modern Java frameworks and deployment environments, including JDK 17, Spring Boot, OpenShift, Kubernetes and AWS. You’ll work across the full development lifecycle, helping ensure applications remain secure, reliable and fully functional throughout the modernization journey. What You’ll Do Modernize and refactor legacy Java 6/8, JBoss and Struts applications, supporting migration to JDK 17, Spring Boot and newer JBoss EAP environments. Design, develop and enhance Java back-end services while contributing to TypeScript components and modern microservices-based architectures. Containerize and deploy applications using Docker, OpenShift and Kubernetes, with deployment into AWS environments including ECS/EKS. Integrate applications with enterprise authentication and SSO solutions such as Okta, including implementations using Spring SAML. Deliver across the Agile software development lifecycle, from technical design and development through testing, CI/CD, deployment and production release. What We’re Looking For 5-6 years of Java development experience with extensive back-end expertise across Java/J2EE, including Core Java, multi-threading, Collections, JDBC, Maven and Ant. Demonstrated experience upgrading and refactoring legacy Java applications, particularly Java 6/8, JBoss and Struts environments, with experience of Spring Boot and modern Java/JDK versions. Hands-on experience with TypeScript and cont

CAPCO POLAND - WARSAW *We are looking for Poland based candidate. At Capco Poland, we’re not just another consultancy - we’re the spark behind digital transformation in the financial world. As a global leader in technology and management consulting, we thrive on helping clients tackle the toughest challenges across banking, payments, capital markets, wealth, and asset management. Role Overview We are seeking React / Java Full Stack Engineer to join our Global Asset Servicing Platform team. This is a hands-on engineering role where you will design, build, and test features end-to-end – with full ownership of code and quality. You will work across development and test automation: coding new functionality, writing unit and integration tests, and adding Cucumber-based end-to-end tests – not only for your own work but also for features built by your teammates, to ensure unbiased validation. The ideal candidate will be skilled in Java backend development and modern UI development using React. This role will work across the full stack to build a scalable, reliable, and user-friendly application. Key Responsibilities Design, develop, and maintain features using Java and React . Build responsive and modern frontend applications using ReactJS, Develop and integrate APIs and web services. Experience working with relational databases (Oracle, Postgres) Write clean, well-structured unit tests (JUnit or equivalent) alongside your code. Contribute to and maintain our automated test framework using Ruby and Cucumber : Write new Ruby step definitions as needed. Create and maintain Cucumber feature files for end-to-end testing. Write automated tests for features developed by other engineers , ensuring high-quality outcomes and reducing development bias. Champion a test-first approach , delivering code that is reliable, maintainable, and scalable. Apply performance and scalability considerations; use tools such as JMeter for load/performance testing where

Join us in building the future of finance. Our mission is to democratize finance for all. An estimated $124 trillion of assets will be inherited by younger generations in the next two decades. The largest transfer of wealth in human history. If you’re ready to be at the epicenter of this historic cultural and financial shift, keep reading. About the team + role We are building an elite team, applying frontier technologies to the world’s biggest financial problems. We’re looking for bold thinkers. Sharp problem-solvers. Builders who are wired to make an impact. Robinhood isn’t a place for complacency, it’s where ambitious people do the best work of their careers. We’re a high-performing, fast-moving team with ethics at the center of everything we do. Expectations are high, and so are the rewards. The Robinhood Wallet team’s mission is to democratize access to financial services worldwide by leveraging DeFi protocols and Robinhood Chain! We build secure, intuitive, and decentralized products that enable our users to custody and manage their digital assets. Our team works at the intersection of traditional finance and web3, driving progress in cryptocurrency and blockchain applications. We work closely with product managers, product designers, and backend engineers to deliver highly reliable, high-performance systems for customers worldwide. We pride ourselves on a culture of shared learning, high technical standards, and respectful collaboration. As a Senior Android Engineer , you’ll build and own new product features for the Robinhood Wallet Android app. You will develop reliable and secure solutions to deliver a high-quality trading experience for cryptocurrencies and tokenized stocks, including perpetual futures, to customers worldwide. In this role, you will take lead responsibility for designing scalable mobile architectures, defining code standards, and maintaining high-quality codebases. You will collaborate closely with client engineers, backend develope

Horizon Trading Solutions ? Une Fintech spécialisée dans la conception d’une plateforme facilitant les différentes activités de trading sur les marchés financiers électroniques (automatisation de certaines activités (Market Making, Algo Trading...), gestion des ordres et exécutions de manière optimale (Agency Trading, Order and Execution Management System…), Un logiciel à la fine pointe de la technologie déployée sur site ou en SaaS, Une roadmap produit ambitieuse : Machine Learning, IA, Crypto Currencies, Low Latency… Une société à taille humaine (160 collaborateurs) où vous pouvez faire une différence, Une société internationale présente dans 6 pays pour servir des clients répartis sur 26 pays, Une société engagée : certifié B-Corp, partenaire de Planet Tech’care, Ethical IA et Lakaa, fond de dotation, Une société reconnue dans son domaine : Best trading solution for listed securities 2022 et 2023, Best trading system strategy development 2022, Best sell-side OMS 2021, Multi-Asset Trading System of the year 2020… Votre quotidien ? Au sein d’une équipe Scrum de 6 à 9 personnes, vous participerez aux étapes de développement de nos solutions (de la spécification jusqu’à la mise en oeuvre chez le client) : Développer et maintenir le code de notre produit en écrivant un code propre, efficace et maintenable qui répond aux normes de développement de logiciels Travailler en étroite collaboration avec les autres membres de l'équipe pour concevoir de nouvelles fonctionnalités et améliorations Apporter votre expertise technique dans le but de proposer, simplifier, et challenger les solutions, Participer aux revues de code et aux tests pour garantir la qualité du code et des fonctionnalités Contribuer à l'amélioration continue de notre processus de développement agile Collaborer avec les autres équipes de la société (en France et à l’international) pour promouvoir les bonnes pratiques. Votre environnement technique ? Une application multi-process de plusi

SOBRE A CAPCO A Capco é uma consultoria global de tecnologia e negócios, focada no setor de serviços financeiros e energia, somos apaixonados por ajudar nossos clientes, temos 40 escritórios nas Américas, Europa e Ásia-Pacífico! Se criatividade e inovação são sua paixão, a Capco é ideal para você. Vamos te apoiar e ajudar a acelerar sua carreira! Estamos buscando um Desenvolvedor Full Stack experiente para projetar, desenvolver e implementar aplicações web corporativas para um programa de Modernização de Automação em larga escala no setor de Energia. A função será responsável pelo desenvolvimento de aplicações front-end responsivas utilizando Angular, pela implementação da lógica de negócios e de serviços de backend utilizando Java / Spring Boot e pelo projeto e desenvolvimento de objetos de banco de dados, incluindo tabelas, views, stored procedures, funções e queries utilizando Oracle e PL/SQL. O candidato selecionado trabalhará em estreita colaboração com o Líder Técnico, Arquitetos de Soluções, Analistas de Negócios, Desenvolvedores de Integração, Arquitetos de Dados, equipes de QA e fornecedores externos para entregar aplicações corporativas seguras, escaláveis, resilientes, de fácil manutenção e de alto desempenho. Visão Geral do Projeto: O programa de Modernização de Automação tem como objetivo modernizar o ecossistema da organização nas áreas de clientes, precificação, previsão, faturamento e analytics por meio de aplicações web modernas, serviços orientados a APIs, integrações corporativas e soluções de dados escaláveis. Principais Responsabilidades: • Projetar e desenvolver aplicações front-end responsivas e reutilizáveis utilizando Angular e TypeScript. • Integrar aplicações front-end com serviços de backend utilizando REST APIs. • Projetar e desenvolver lógica de negócios e serviços de backend utilizando Java e Spring Boot. • Desenvolver APIs RESTful e componentes de serviço para dar suporte às funcionalidades das aplicações e aos req

Role: Java Developer Location: Hyderabad, India (Remote) Do you like development for the back-end of the application that forms the main logical backbone of the system? Are you passionate to work on cutting edge projects for telecommunications where you can contribute your skills and experience to bring the change. We are hiring Java developers who are strong with OOPS and RESTful service concepts. Technical Skills Required: • Developing applications using Java - Very strong foundations and work experience required • Hands-on experience working in J2EE environments. • Strong NoSQL (Cassandra. Couchbase) and Oracle database skills • Involved in creating and managing Web Services as a part of the application. • Hands-on experience in Middle-ware development • Working experience in the Development of REST API • Hands-on experience in SOAP • Hands-on experience in Microservices • Experience in using JAX-RS, Jason • Experience in the technical domain. • Experience with SS7 or Diameter protocols is a must.

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. The Lead Java Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities. Responsibilities: Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards Provide expertise in area and advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint Utilize advanced knowledge of system flow and develop standards for coding, test

Senior Low Latency Developer – Equities Connectivity Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. Equities Technology Equities Technology at Citi is undertaking a bold, multi‑year transformation to build a best‑in‑class global platform across execution, prime, clearing and cross‑product margining. We are re‑engineering our technology estate to achieve world‑leading performance and resiliency, enabling new capabilities in advanced execution, global market connectivity, and modernized post‑trade, clearing and margin processes. Our ambition is to deliver a seamlessly integrated, highly automated platform that drives outstanding client outcomes and accelerates growth across our global franchise. As part of the team, you’ll collaborate closely with high‑caliber engineers and deeply engaged business and product partners - working together to define and deliver the next generation of Equities technology at Citi . Role Overview Citi's Equities Technology organization is seeking an experienced, hands-on engineer to join the Equities Electronic-Execution (Electronic Trading) technology team. The person in this role will be responsible for the development and operational excellence of Citi's next-generation low-latency connectivity platforms.

About Ubiquiti At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT. At Ubiquiti, you’ll heighten your potential and broaden your horizons - all while shaping the future of connectivity. Position: Ubiquiti Riga office is looking for talented Java developer for UniFi Network Team. You’ll be working on UniFi Network application back-end to develop efficient, scalable and maintainable features. Your work will have impact on large end-user base and you’ll be able to use products you develop at home. The project stack: Java 17/21; Spring Boot 3.2.; MongoDB; GraalVM; Jenkins. Responsibilities: REST API development to support Web & mobile applications; Develop integrations with network device firmware and other UniFi OS applications; Participate in all phases of development, including feature design. Requirements: 5+ years developing Java applications; Good understanding of SOLID principles; Experience in web application development; Experience with AI tools - Claude, Codex, etc. Fluent in English and Latvian. Nice to have: Spring or other web framework knowledge; Experience with Bash and Unix. Benefits: International work environment and work with global development teams; Ability to deliver software that is used by millions of people across the globe; Opportunity to leverage and integrate modern AI tools into product development; Access to all Ubiquiti products; Medical insurance; Hybrid approach - office in Riga; Flexible work hours; Compensation package matching global standards, including competitive sala

FX Risk Lead Java Developer + AI (VP) Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. What We do / The Team This isn't just another Java developer role. As a Lead Java Developer – Vice President within Citi's FX Risk technology team, you'll be at the intersection of high-stakes financial engineering and the next generation of AI-powered software development. At Citi, we are actively redefining how technology drives global finance — every day, $5 trillion crosses our network. You'll architect and deliver the systems that power real-time FX risk management for one of the world's largest financial institutions, working in an environment where AI is not a future ambition — it's how we work today. You'll have hands-on access to Citi's internal GenAI ecosystem: from GitHub Copilot and Devin.AI for agentic code generation, to Citi Squad for automated code reviews, to Stylus Workspaces — Citi's in-house GenAI platform powered by top-tier LLMs including Gemini, OpenAI, Claude, Llama, and local models. You'll use Prompt Engineering, Workflow Design, and GenAI Optimisation techniques as part of your everyday engineering practice. This is the next genera

About DevRev At DevRev, we're building the future of work with Computer – your AI teammate. Unlike traditional tools, Computer unifies all your data sources, tools, and workflows into a single AI-ready platform, giving employees real-time insights, proactive suggestions, and powerful agentic actions. It extends your existing software with AI-native apps and agents that work alongside your teams and customers – updating workflows, coordinating across teams, and eliminating repetitive work. We call this Team Intelligence: human-AI collaboration that breaks down silos, brings people back together, and frees you to solve bigger problems. Backed by Khosla Ventures and Mayfield with $150M+ raised, DevRev is trusted by global companies across industries. About the role We are looking for ambitious software developers who can bring a fresh perspective to solving challenging problems and build infrastructure that will support AI/ML applications and a delightful user experience. A good grasp of operating systems, distributed systems, databases, and networking concepts and the ability to design for scale, optimized memory usage, and performance are required to be successful in this role. As a software developer at DevRev, you will have the opportunity to build things that truly matter and to work with a thriving global team. What you'll bring Bachelor’s or Master’s degree in Computer Science or related technical field At least 5-7 years of software development experience Software development experience coding in C, C++, Java, and/or Golang Strong experience with memory and performance optimization Experience building and working with API integrations Affinity to lead a small team while remaining hands-on in engineering Knowledge of and experience with agile development processes Creative problem solving Preferred qualifications: 5+ years of experience programming with two or more of the following languages: C, C++, Java, Golang, or Python Experience with implementation

Toast creates technology to help restaurants and local businesses succeed in a digital world, helping business owners operate, increase sales, engage customers, and keep employees happy. The Android Systems team bridges the gap between hardware and software to build the foundational platform for Toast POS devices. The team develops the end-to-end software driving our device management product suite—including system applications, cloud-based services, and web user interfaces designed to secure and manage Toast's hardware ecosystem. We are seeking a Staff Software Engineer who is hands-on with coding, is able to design end to end systems, and will pave the path for the team to build modern technical solutions keeping customer empathy in mind. If you are a leader who collaborates well with teams within the organization, can think big, and are passionate about building software systems used to manage hardware devices with high focus on quality, this position is for you! About this roll* (Responsibilities): Hands-on design and implementation of Kotlin backend services to improve our device management workflows for customers. Lead the design and development of the next generation of Toast’s software services and applications to bring a seamless device configuration and user experience for customers. Collaborate with Product Management, Hardware, QA and other Software teams on the product roadmap and requirements to build a long term vision for Toast. Create technical requirements and detailed designs of the software system being developed. Lead effort estimation sessions and use sound judgment to enable planning of projects. Diagnose performance bottlenecks and implement optimizations. Make solid technical decisions keeping software quality, security, and maintainability in mind. Help set the standard for software quality by adopting modern software test frameworks and practices in day to day development. Do you have the right ingredients*? (Requirements): 8+ years of exp