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

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

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

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

About Inspira Education Inspira Education Group is one of the fastest-growing edtech startups in the US. We started with a simple mission to democratize access to high-quality coaching so that every student in the world has an equal opportunity to access the best opportunities. As the world’s leading network of top admissions coaches in medical, legal, business, and college studies, we’re building software and services in one place—disrupting long-entrenched application processes with products and experiences that strive to provide an equal platform for candidates from diverse backgrounds worldwide. As one of the fastest-growing edtech firms in the world, we are backed by some of the leading venture capital firms and investors in the world, including Zeev Ventures, Quiet Capital, Craft Ventures and Jeff Fluhr (Founder of Stubhub). About the role We’re looking for a strong full-stack engineer who can own the complete product development process: understand a business problem, define the solution, design the user experience, build the software, and improve it after launch. You’ll work closely with leadership and business teams, combining hands-on engineering with product management and design responsibilities. You should be highly effective with AI coding tools and have the technical depth to independently review, debug, secure, and maintain everything you ship. This is an in-person role requiring 5 day/week in our NYC office. What you’ll own Translate business needs and user feedback into product requirements, user flows, prototypes, and prioritized development plans. Design and build polished applications across the front end, back end, database, and integrations. Make architecture decisions and scope releases that balance speed, reliability, and future maintainability. Use AI tools throughout development to accelerate implementation, testing, debugging, and documentation. Own deployment, production monitoring, incident resolution, and ongoing improvemen

About Us OpenFX is on a mission to move money as freely as data, unrestricted by time zones, banking hours, or legacy systems. We are building the infrastructure that will power the next generation of cross-border payment systems for institutions. The team's execution has been exceptional, and we're scaling at a remarkable pace. Our stellar early team comes with experience in companies like J.P . Morgan, Goldman Sachs, FalconX, Paypal, Affirm, Polygon, Kraken, Nium & others. We’re backed by Accel, Lightspeed, NfX, and other top-tier investors. Role Overview We're hiring a quantitative trader/developer for Capital Markets which covers trading, hedging, and market-making strategies across our stablecoin and FX business. You'll have the opportunity to work directly with the trading desk on strategies with real, immediate P&L impact, with daily 1:1 mentorship from the experienced traders and engineers leading Capital Markets. You're evaluated on the strategies you ship and the P&L they generate. You own a thread from idea to live trading, and the person you're building it with is a trader. We're specifically looking for someone with a trading background: a prop trading firm, a crypto market maker, or a trading platform where you've both written the code and owned the trading decision it produced. Key Responsibilities: Trading strategy development. Develop, maintain, and improve trading and hedging strategies across our stablecoin and FX business, from idea to live execution, with full ownership of the outcome. Production trading systems and live operations. Own the reliability, observability, and operational performance of our live trading environment. Monitor systems in real time, act as primary responder to production issues, and work with the desk to investigate, mitigate, and resolve incidents affecting trading, risk, or system stability. Production tooling and operational safety. Build and improve internal tools, dashboards, alerts, and automation that

This is Adyen Adyen provides payments, data, and financial products in a single solution for customers like Meta, Uber, H&M, and Microsoft - making us the financial technology platform of choice. At Adyen, everything we do is engineered for ambition. For our teams, we create an environment with opportunities for our people to succeed, backed by the culture and support to ensure they are enabled to truly own their careers. We are motivated individuals who tackle unique technical challenges at scale and solve them as a team. Together, we deliver innovative and ethical solutions that help businesses achieve their ambitions faster. Developer Relations Team We're bui lding one of the largest payment platforms in the world — at the exact moment the ground is shifting beneath it. AI agents are increasingly discovering, evaluating, and integrating with platforms on developers' behalf, and are projecte d to transact on payments at a scale that rivals humans. That makes Developer Relations one of the highest-impact teams at Adyen: we directly shape how both developers and their AI agents build on our platform. Our mission is to make Adyen the easiest platform to integrate with — for humans and agents alike. We own the quality of the developer-facing content that people and agents build f rom (code snippets, integration examples, documentation quality), we surface developer friction with evidence and drive fixes across the company, and we're making Adyen's developer surfaces agent-legible and agent-reliable as an explicit quality bar. We're a small, senior, high-ownership team, which means a strong hire genuinely shapes the function. We are looking for a Senior Developer Advocate to join the team, and contribute to: Building the source material developers and agents rely on — high-quality, discoverable integration examples and code snippets across languages, at the bar our strategy demands. This is the foundation both human developers and AI agents build from, so qua

About Us OpenFX is on a mission to move money as freely as data, unrestricted by time zones, banking hours, or legacy systems. We are building the infrastructure that will power the next generation of cross-border payment systems for institutions. The team's execution has been exceptional, and we're scaling at a remarkable pace. Our stellar early team comes with experience in companies like J.P. Morgan, Goldman Sachs, FalconX, Paypal, Affirm, Polygon, Kraken, Nium & others. We’re backed by Accel, Lightspeed, NfX and other top-tier investors. Role Overview We are seeking a Developer Experience Lead , who will report to the head of Product Growth, to own the entire developer-facing surface of our platform, from documentation to integration support to API governance. We have built a world-class financial engine, but how external developers experience that engine has no owner. This role fills that gap. This is a foundational role. You will be the first hire in this function. You will architect the documentation ecosystem from the ground up, define the processes that keep it accurate as the platform evolves, and directly support the clients who integrate with our APIs. Over time, you will shape how Developer Experience operates as a discipline at OpenFX, influencing product decisions, integration strategy, and the developer journey end-to-end. You will set the bar higher than industry standards, building a knowledge system that turns complex FX liquidity and cross-border payment flows into a Hello World integration in under 15 minutes. Key Responsibilities: Drive API Product Adoption You own API adoption as a measurable outcome. You instrument the funnel from API key activation to first API call to first transaction to expanded endpoint usage. You set the baseline, define the targets, and drive the cross-functional work to move the number. Every quarter, more developers are activated, more endpoints are used, and integrations go deeper. This is what you are accountab

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

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. Responsibilities: Participate in the development of superior applications for iOS/iPad OS platforms; Ensure the performance, quality, and responsiveness of applications; Collaborate with the team to define, design, and ship new features to a high standard; Work closely with designers and other teams to ensure feature parity and high-quality experience across all platforms. Requirements: Passion for a great UI/UX, understanding of Apple’s design principles and interface guidelines; Proficient knowledge of Swift, SwiftUI and app life cycle; Knowledge of iOS frameworks (e.g. UIKit, SwiftUI, Combine); Familiarity with RESTful APIs/WebSocket to connect to back-end services; Familiarity with Swift code style guidelines; Experience with AI tools - Claude, Codex, etc. Fluent in English and Latvian. 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 salary depending on your qualification and background (starting from 2500 up to 6000 Euro gross monthly); A-class office with all

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

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.

This is Adyen Adyen provides payments, data, and financial products in a single solution for customers like Meta, Uber, H&M, and Microsoft - making us the financial technology platform of choice. At Adyen, everything we do is engineered for ambition. For our teams, we create an environment with opportunities for our people to succeed, backed by the culture and support to ensure they are enabled to truly own their careers. We are motivated individuals who tackle unique technical challenges at scale and solve them as a team. Together, we deliver innovative and ethical solutions that help businesses achieve their ambitions faster. Senior Technical Product Manager - Internal Developer Platform The Internal Developer Platform (IDP) cluster is on a mission to create standardized, scalable, and delightful experiences across the software development life cycle (SDLC) so Adyen engineers are empowered to deliver value more efficiently and reliably for our customers. As a Senior Product Manager within the IDP cluster, you will manage a key stream of our platform evolution. Your goal is to transition our engineering organization from fragmented, "tribal knowledge" based flows to a cohesive, automated ecosystem that reduces cognitive load, minimizes manual toil, and ensures our platform scales with our global engineering footprint. 2026 is our year of deep optimization and resilience; you are a product leader who understands that scaling a platform requires balancing innovation with mandatory reliability and stability mandates What you’ll do: Optimize the SDLC: Drive initiatives to reduce SDLC friction, such as reducing CI flakiness and improving build insights, to help teams shift from centralized, manual processes to systemic, automated "golden paths". Drive Product Maturity: Take ownership of product lifecycle management by assessing the maturity of our toolset, executing on necessary deprecations, and ensuring our core products have clear adoption paths and value p

About the role: We are hiring a Salesforce Commerce Cloud (SFCC) Full Stack Developer to own both the front-end experience and back-end architecture of our telehealth e-commerce platform. You'll work across a composable architecture leveraging Cloudflare Workers , Builder.io and S alesforce Commerce Cloud architecture, partner with external development agencies and internal teams, and help manage, optimize and develop the commerce systems supporting our telehealth business — including integrations with order management and telehealth servic e layer Key responsibilities: Development & Architecture Design and develop features across the Salesforce Commerce stack — Builder.io CMS, Cloudflare Workers, and other 3 rd party integrations Make engineering decisions for Telehealth systems and how they all work together. Make architectural recommendations working with our Architect and Senior Engineering Leadership Build and maintain custom integrations, and integrate third-party cartridges with necessary customizations to enable future Telehealth expansion Solve problems that span UI, business logic, and system integration Front-End Translate Sketch/Photoshop/Figma designs into pixel-perfect, cross-browser, responsive builds that leverage Builder.io Own front-end performance optimization (load time, rendering, asset delivery) Apply JavaScript patterns (MVVM, AMD/CommonJS) using React, ISML, and SASS Integrations & Platform Operations Set up, maintain, and troubleshoot integration feeds between SFCC, SOM, TeleHealth Middle Layer. Also have ability to set up, maintain, and troubleshoot integration feeds — products, inventory, price books, OMS, prescription/order data, Google Merchant, product reviews Manage OCAPI/SCAPI integrations, Cloudflare caching strategy, and cache invalidation

About the Role Together serves a broad portfolio of open-weight models, backed by infrastructure designed to run them quickly and efficiently. The interfaces around those models shape the entire customer experience: how easily a developer can migrate an application, how reliably an agent can use a model, and how a team runs large asynchronous workloads. As Senior Product Manager for Model APIs and Developer Experience, you will own those interfaces. Your scope will extend beyond chat to include the APIs and developer experience for image, video, voice, and passthrough models. You will also own compatibility with the wider developer and agent ecosystem, the voice consumption experience and associated model partnerships, and the evolution of our batch inference product. These areas are connected by a single goal: make Together's models easy to adopt and reliable to build on for developers and autonomous agents. This is a hands-on product role. You will read API specifications, test integrations, inspect code when useful, and build prototypes or demo applications to sharpen your thinking. You will work closely with engineering and research, own the product direction, make thoughtful tradeoffs, ship, and learn from how customers use what we build. Responsibilities Set the product direction and roadmap across chat and multimodal APIs, ecosystem compatibility, voice, and batch inference. Close the API and behavioral gaps that make it harder for customers to move workloads from proprietary model providers to Together. Develop a grounded view of how Together's APIs perform in the developer and agent ecosystem, and turn the most important gaps into clear product priorities. Define an intuitive API and consumption experience for real-time and agentic voice applications. Build productive relationships with voice model partners and align internal and external teams around a strong joint product experience. Reimagine batch inference across the job lifecycle, developer experience