Java Backend Developer Jobs

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

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.

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

Leidos is seeking a Senior Software Developer to support the rapid development of operations, data analysis, and data visualization applications in a dynamic mission environment. This is a fast-paced development environment where emerging operational needs often require quick, practical software solutions that can be deployed rapidly and refined over time . The successful candidate will work closely with the customer and end users to understand evolving requirements, solve complex data-driven problems, and deliver effective solutions across both front-end and back-end environments. The role supports the full software development lifecycle, including requirements analysis, design and development, troubleshooting, deployment, system backup and recovery, and enhancement of both existing and new applications. This position is located in Chantilly, VA . CLEARANCE REQUIREMENT: Candidates must currently possess an active TS/SCI clearance and be willing and able to undergo a polygraph. Candidates who do not currently possess an active TS/SCI will not be reviewed or considered. Primary Responsibilities Design, develop, maintain, and enhance mission-critical software applications. Rapidly develop and deliver software solutions in response to emerging operational needs and evolving requirements. Develop both front-end and back-end components in support of operational and data-analysis requirements. Work directly with customers and end users to gather requirements and translate operational needs into technical solutions. Develop applications supporting the analysis and visualization of large and complex datasets, including geospatial data . Troubleshoot and resolve complex software, system, and data-related issues. Participate throughout the software development lifecycle, including requirements, design, development, testing, deplo

OUR MISSION At Redwood, we empower our customers with lights-out automation for their mission-critical business processes. ABOUT US Redwood Software is the leading orchestration platform for the autonomous enterprise, driving business transformation at the lowest total cost of ownership. Redwood empowers organizations to intelligently automate and orchestrate mission-critical business and IT processes across complex ERP, hybrid cloud, data and emerging agentic AI systems. Through its SaaS-first automation fabric—with AI embedded across the automation lifecycle—Redwood accelerates the path to autonomous operations. Backed by 30 years of experience and trusted by more than 50% of the Fortune 50, Redwood helps organizations unlock human potential to focus on innovation, growth and what’s next. CORE VALUES One Team. One Redwood Make Your Own Weather Obsess over Customer Success Work the Problem Be Curious Own the Outcome Respect Each Other YOUR IMPACT We are seeking a highly skilled and passionate Full Stack Software Developer with a strong focus on Java to join our growing engineering team. In this role, you will be instrumental in designing, developing, and maintaining robust and scalable full-stack applications that power our automation and SaaS platforms. You will work across the entire software development lifecycle, from concept to deployment, collaborating closely with product managers, designers, and other engineers to deliver high-quality, impactful solutions. Design, develop, and implement highly performant and scalable full-stack applications using Java, Javascript, and related technologies. Build and maintain robust back-end services, APIs, and microservices. Develop responsive and intuitive front-end user interfaces. Collaborate with product management to understand requirements and translate them into technical specifications. Participate in all phases of the software development lifecycle, including planning, design, codin

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. Company Description: Okta is an integrated identity and mobility management service. Built from the ground up in the cloud, Okta securely and simply connects people to their applications from any device, anywhere, at anytime. Okta integrates with existing directories and identity systems, as well as thousands of on-premises, cloud and mobile applications, and runs on a secure, reliable and extensively audited cloud-based platform. More than 5,000 customers, including Adobe, Allergan, Chiquita, LinkedIn, MGM Resorts International, Shire Pharmaceuticals and Western Union, use Okta to improve employee productivity, increase supply chain efficiency and revenue and improve compliance. The thousands of enterprises and cloud vendors, as well as the millions of people using Okta, are the foundation of the industry's fastest growing IT network for the cloud and mobile world. Okta is backed by premier venture capital firms Andreessen Horowitz, Greylock Partners, Khosla Ventures and Sequoia Capital. To learn more about Okta, visit: https://www.okta.com . Position Description: Okta Engineering is looking for a Software Engineer Manager to help us scale and increase velocity. You will be driving and perfecting our vision of Continuous Delivery, increasing the velocity and productivity of engineering. You will work with a wide range of stakeholders and partners, including Engineers, Architects, Operations, Program Management, and Quality. We have a gre

Why Sony Interactive Entertainment? Sony Interactive Entertainment isn’t just the Best Place to Play — it’s also the Best Place to Work. Sony Interactive Entertainment (SIE) is the company behind the PlayStation brand. As a subsidiary of Sony Group Corporation, we’re part of a proud legacy of innovation and excellence. SIE is a dynamic technology company, delivering cutting-edge hardware and network services to more than 100 million people and an entertainment leader, home to some of the most beloved and recognizable intellectual properties (IP) in the world. Our role at SIE is to create and nurture the experiences under the PlayStation brand, a name synonymous with entertainment excellence and creativity. Senior Software Engineer / Software Developer (React Native) Build what’s next for players. We’re a startup inside Sony PlayStation. Fast-moving, experimental, and highly ambitious. Backed by the scale, resources, and trust of Sony Interactive Entertainment. We’re building new mobile and web experiences that help gamers connect, discover, and play together in better ways. This is a rare opportunity to design at startup speed and drive huge impact inside the largest gaming company in the world. We are seeking a Senior Software Engineer / Software Developer specializing in React Native and high-performance frontend development for mobile platforms. In this role, you will define the architecture, frameworks, and technical best practices. You will collaborate closely with engineers, product, and design teams to deliver best-in-class user interfaces that are performant, accessible, and delightful at scale. As a Senior Engineer, you will provide technical leadership across teams, mentor engineers, and push the boundaries of what’s possible in cross-platform frontend development. Responsibilities Define and evolve the frontend architecture for client applications on mobile using React Native and modern JavaScript/TypeScript. Drive performance o

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. Company Description: Okta is an integrated identity and mobility management service. Built from the ground up in the cloud, Okta securely and simply connects people to their applications from any device, anywhere, at anytime. Okta integrates with existing directories and identity systems, as well as thousands of on-premises, cloud and mobile applications, and runs on a secure, reliable and extensively audited cloud-based platform. More than 5,000 customers, including Adobe, Allergan, Chiquita, LinkedIn, MGM Resorts International, Shire Pharmaceuticals and Western Union, use Okta to improve employee productivity, increase supply chain efficiency and revenue and improve compliance. The thousands of enterprises and cloud vendors, as well as the millions of people using Okta, are the foundation of the industry's fastest growing IT network for the cloud and mobile world. Okta is backed by premier venture capital firms Andreessen Horowitz, Greylock Partners, Khosla Ventures and Sequoia Capital. To learn more about Okta, visit: https://www.okta.com . Position Description: Okta Engineering is looking for a Software Engineer Manager to help us scale and increase velocity. You will be driving and perfecting our vision of Continuous Delivery, increasing the velocity and productivity of engineering. You will work with a wide range of stakeholders and partners, including Engineers, Architects, Operations, Program Management, and Quality. We have a gre