Java Backend Developer Jobs

Python / Django Developer (Backend) K12 Techno Services • Bengaluru, Karnataka • via Cutshort ₹15L–₹20L a year Full–time Job description Designation: Python/Django Developer (Backend) Department: Software Engineering Team Location: Whitefield (Bangalore) Qualification: Any Computer (Graduate or Post Graduate) Experience: 3+ years of relevant experience in building functional and efficient server-side applications using Python/Django with 2+ years of relevant experience in working with RDBMS. Responsibilities: • Help design and implement functional requirements • Build efficient back-end features in Python • Integrate front-end components into applications • Manage testing and bug fixes • Prepare technical documentation • Collaborate with UX/UI designers to implement design into the code • Coach junior team members • Implement software enhancements and suggest improvements Skills Required: • Experience with Python frameworks (e.g. Django, Flask, FastAPI) • Familiarity with Amazon Web Services (AWS) cloud technologies • Excellent understanding of REST API Development and HTTP Methods • Understanding of databases and SQL • Good experience in working with RDBMS • Good understanding of computer science fundamentals - data structures, algorithms, memory management, performance. • Knowledge of web stack - javascript, html, web frameworks like React.js is a plus • Good understanding of Good Troubleshooting experience and exposure • Ability to work with Jr engineers, mentor, guide and help them • Enjoys coding and problem solving • Good communication skills. Ability to express ideas clearly and concisely • Familiarity with code versioning tools (such as Git, SVN, and Mercurial) Salary: Upto 21LPA (Negotiable) IMMEDIATE JOINING PREFERRED!

Python / Django Developer (Backend) K12 Techno Services • Bengaluru, Karnataka • via Cutshort ₹15L–₹20L a year Full–time Job description Designation: Python/Django Developer (Backend) Department: Software Engineering Team Location: Whitefield (Bangalore) Qualification: Any Computer (Graduate or Post Graduate) Experience: 3+ years of relevant experience in building functional and efficient server-side applications using Python/Django with 2+ years of relevant experience in working with RDBMS. Responsibilities: • Help design and implement functional requirements • Build efficient back-end features in Python • Integrate front-end components into applications • Manage testing and bug fixes • Prepare technical documentation • Collaborate with UX/UI designers to implement design into the code • Coach junior team members • Implement software enhancements and suggest improvements Skills Required: • Experience with Python frameworks (e.g. Django, Flask, FastAPI) • Familiarity with Amazon Web Services (AWS) cloud technologies • Excellent understanding of REST API Development and HTTP Methods • Understanding of databases and SQL • Good experience in working with RDBMS • Good understanding of computer science fundamentals - data structures, algorithms, memory management, performance. • Knowledge of web stack - javascript, html, web frameworks like React.js is a plus • Good understanding of Good Troubleshooting experience and exposure • Ability to work with Jr engineers, mentor, guide and help them • Enjoys coding and problem solving • Good communication skills. Ability to express ideas clearly and concisely • Familiarity with code versioning tools (such as Git, SVN, and Mercurial) Salary: Upto 21LPA (Negotiable) IMMEDIATE JOINING PREFERRED!

Opportunity Overview: We are seeking a Software Engineer II to join our Engineering team. In this role, you will independently deliver features and improvements to healthcare technology that powers prior authorization for health plans covering 15+ million members. You'll own story-sized work from design through deployment — decomposing problems, coordinating dependencies, and shipping reliable software with minimal oversight. You'll partner with your squad, product, and QA to build systems that healthcare practitioners rely on daily. This is an opportunity to deepen your engineering skills, take ownership of meaningful work, and grow toward technical leadership in a high-impact healthcare environment. This is a remote-first role that may require travel to Boston, MA for new hire onboarding and occasional in-person team meetings and company events. What you’ll do: Own story-level work independently — decomposing stories into tasks, implementing across the full stack (Java/Groovy backend, React/TypeScript frontend, MongoDB, Kafka), and leading release and support for your changes Design and ship features with strong quality discipline — writing appropriate tests, producing accurate estimates, and confirming priorities with your team Write short design notes for non-trivial work, articulating tradeoffs between approaches before committing to implementation Debug and resolve production issues in your owned area, using logs, metrics, and traces to identify root causes and ship fixes Identify and ship small platform or process enhancements that improve developer experience, code quality, or operational reliability Provide high-signal code reviews that catch issues, suggest improvements, and help teammates grow Support onboarding of new team members and mentor interns or new hires on bounded, well-scoped tasks Coordinate across tasks and dependencies within your stories — working with PM, QA, and adjacent engineers to resolve blockers and close issues through

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Software Engineers at Palantir drive large-scale transformation through data, AI and world-leading infrastructure that supports mission-critical workloads. As an engineer within Palantir's Infrastructure teams, you'll have the opportunity to grow more quickly than you ever imagined as you contribute high-quality code directly to: The shared infrastructure underpinning Palantir Foundry, Palantir Gotham and Palantir Apollo — platforms deployed at the most important institutions across the public and private sectors Rubix and Mission Manager, our new internal-infrastructure business line, used by advanced civil and defence agencies worldwide to power their infrastructure in highly sensitive environments The substrate on which Palantir deploys Foundry and Gotham, powering workflows for research scientists, aerospace engineers, intelligence analysts and economic forecasters This means driving investments that improve the velocity and quality of our engineering. Infrastructure at Palantir spans our Foundations, Production Infrastructure and Foundry teams. Teams within Palantir's Foundations organisation are made up of a small number of engineers, each focused on one of four major categories of our infrastructure: Backend Infrastructure Developer Infrastructure Frontend Infrastructure Storage Infrastructure Production Infrastructure organisation, made up of small teams of engineers working on: Environment Platform: a Kubernetes-based PaaS spanning hundreds of production clusters Apollo: secure, fleet-wide deployment and change-management for complex microservice suites Signals: our full suite of observability and alerting tools Foundry itself is also a developer

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Software Engineers at Palantir drive large-scale transformation through data, AI and world-leading infrastructure that supports mission-critical workloads. As an engineer within Palantir's Infrastructure teams, you'll have the opportunity to grow more quickly than you ever imagined as you contribute high-quality code directly to: The shared infrastructure underpinning Palantir Foundry, Palantir Gotham and Palantir Apollo — platforms deployed at the most important institutions across the public and private sectors Rubix and Mission Manager, our new internal-infrastructure business line, used by advanced civil and defence agencies worldwide to power their infrastructure in highly sensitive environments The substrate on which Palantir deploys Foundry and Gotham, powering workflows for research scientists, aerospace engineers, intelligence analysts and economic forecasters This means driving investments that improve the velocity and quality of our engineering. Infrastructure at Palantir spans our Foundations, Production Infrastructure and Foundry teams. Teams within Palantir's Foundations organisation are made up of a small number of engineers, each focused on one of four major categories of our infrastructure: Backend Infrastructure Developer Infrastructure Frontend Infrastructure Storage Infrastructure Production Infrastructure organisation, made up of small teams of engineers working on: Environment Platform: a Kubernetes-based PaaS spanning hundreds of production clusters Apollo: secure, fleet-wide deployment and change-management for complex microservice suites Signals: our full suite of observability and alerting tools Foundry itself is also a developer

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 em busca de um consultor Desenvolvedor(a) Fullstack com foco em Backend Senior , proativo e com forte foco em desenvolvimento front-end, para apoiar e aprimorar a Experiência Autenticada do cliente. Principais Responsabilidades Sólida experiência em desenvolvimento Java. Familiaridade com Spring Boot. Conhecimento prático do ecossistema AWS. Comunicação proativa e bom relacionamento com stakeholders. Capacidade de identificar ambiguidades antecipadamente e levantar questionamentos quando os requisitos ou as histórias no Jira não estiverem claros. Forte senso de responsabilidade e comprometimento com o cumprimento dos acordos assumidos. Capacidade de gerenciar alterações de código utilizando práticas disciplinadas de branching e controle de versão. Familiaridade com o uso de ferramentas de desenvolvimento assistidas por IA (por exemplo, Claude), mantendo uma compreensão aprofundada do código gerado, da abordagem de implementação e da solução resultante. Capacidade de explicar, solucionar problemas e dar suporte a código Java, independentemente de ferramentas assistidas por IA terem sido utilizadas durante o desenvolvimento. Inglês avançado - Irá atuar com time do EUA diariamente POR QUE CAPCO: Na Capco promovemos uma cultura inclusiva. Valorizamos a diversidade em todas as suas expressões. Pensamos, em conjunto, sempre em ações diversas de inclusão e de responsabilidade social através de comitês internos geridos pela nossa comunidade interna, como os grupo de Mulheres, Pessoas Com Deficiência, Pessoas Negras, LGBTQIAPN+, Parentalidade, Gerações, entre outros.

We’re looking for an Senior Software Developer, Backend who can help us support the development organization to deliver value to customers in a reliable, efficient, and safe manner. You’ll be working in a focused team that owns one piece of the production application environment and the developer experience, you will execute on defined projects to achieve team-level goals. In line with Hootsuite's distributed workforce strategy, our flexible work arrangement allows for a hybrid model. This role is open to applicants within commutable distance to Luxembourg. WHAT YOU’LL DO: Write software - tools, libraries, automation, services Design and build our infrastructure platform Identify and implement new platform features Research and evaluate new technologies Refactor, rewrite or retire existing platform features Operate our developer experience and production application environments Diagnose and repair our distributed systems Perform maintenance, upgrades and migrations Control or eliminate repetitive tasks, alert noise, and business-as-usual work Enable development teams Provide executable interfaces to our infrastructure platform Provide tools and best practices to support the entire software development lifecycle Participate in a flexible on-call rotation Communicate by writing documentation, participating in meetings, and showing off your work at demos WHAT YOU’LL NEED: A degree in Computer Science or Engineering or equivalent experience working in a software engineering role An ability to write software and working knowledge of software engineering practice (Java programming language and strong working knowledge of object-oriented programming concepts) Proven experience creating stable, reliable, performing and maintainable code Familiarity with data modeling and schema design Knowledge of data structures and algorithms Open Communication: clearly conveys thoughts, both written and verbally, listening attentively and asking questions for clarific

We’re looking for an Intermediate Software Developer, Backend who can help us support the development organization to deliver value to customers in a reliable, efficient, and safe manner. You’ll be working in a focused team that owns one piece of the production application environment and the developer experience, you will execute on defined projects to achieve team-level goals. In line with Hootsuite's distributed workforce strategy, our flexible work arrangement allows for a hybrid model. This role is open to applicants located in Bucharest, Romania. WHAT YOU’LL DO: Write software - tools, libraries, automation, services Design and build our infrastructure platform Identify and implement new platform features Research and evaluate new technologies Refactor, rewrite or retire existing platform features Operate our developer experience and production application environments Diagnose and repair our distributed systems Perform maintenance, upgrades and migrations Control or eliminate repetitive tasks, alert noise, and business-as-usual work Enable development teams Provide executable interfaces to our infrastructure platform Provide tools and best practices to support the entire software development lifecycle Participate in a flexible on-call rotation Communicate by writing documentation, participating in meetings, and showing off your work at demos WHAT YOU’LL NEED: A degree in Computer Science or Engineering or equivalent experience working in a software engineering role An ability to write software and working knowledge of software engineering practice (Java programming language and strong working knowledge of object-oriented programming concepts) Proven experience creating stable, reliable, performing and maintainable code Familiarity with data modeling and schema design Knowledge of data structures and algorithms Open Communication: clearly conveys thoughts, both written and verbally, listening attentively and asking questions for clarification

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As a Senior Backend Engineer on the Flow Components functional team , you'll help build GitLab's Flow Registry, which provides reusable primitives for agentic flows built on the GitLab Duo Agent Platform. Your primary focus will be backend engineering in Python, using LangChain and LangGraph to develop secure, reliable, and scalable capabilities across the Duo Workflow Service and the GitLab monolith. You'll also work across the stack when needed, bringing familiarity with JavaScript and frontend development to support the official GitLab Duo Agent Platform client, Duo CLI, and advocate for a strong user

Reolink , a leader in intelligent visual technology for homes and businesses, was founded in 2009 by a group of engineers with a strong commitment to and passion for smarter security solutions. Our products are now trusted by millions of users across more than 110 countries and regions worldwide. Building on this trust, we continue expanding our presence and bringing our innovations to more markets around the globe. Reolink remains committed to delivering advanced, reliable, and user‑centric solutions that empower people to protect what matters most. 5 Work Days Per Week Current Office Near to Kaki Bukit MRT, Singapore Will Relocate to Tai Seng MRT in September 2026 Medical & Dental Benefits Provided Entitled to Yearly Bonus & Performance Bonus **Current Application & Web App are Java Programming** Job Requirements Bachelor's or Master's Degree in Computer Science, Software Engineering , or a related technical discipline At least 3 years of software development experience in JAVA Programming is preferable for this post Strong understanding of computer science fundamentals (operating systems, network principles, data structures, and algorithms) Programming Languages: High proficiency in Java (including JVM internals and performance tuning) or Node.js (including its event-driven architecture and asynchronous programming model). Proficiency in both is a significant plus. Frameworks & Middleware: Proficient with common open-source frameworks and tools such as Kafka, RocketMQ, Dubbo, Zookeeper, and Redis. Deep knowledge of MySQL , including schema design, SQL optimization, and database scaling strategies. System Experience: Proven, hands-on experience in building, deploying, and maintaining high-concurrency, high-performance, and high-availability systems. Job Responsibilities ( Senior Backend Engineer) Design & Development Take ownership of the design, development, refactoring, and performance opt

What is Box? Box (NYSE:BOX) is the leader in Intelligent Content Management. Our platform enables organizations to fuel collaboration, manage the entire content lifecycle, secure critical content, and transform business workflows with enterprise AI. We help companies thrive in the new AI-first era of business. Founded in 2005, Box simplifies work for leading global organizations, including JLL, Morgan Stanley, and Nationwide. Box is headquartered in Redwood City, CA, with offices across the United States, Europe, and Asia. By joining Box, you will have the unique opportunity to continue driving our platform forward. Content powers how we work. It's the billions of files and information flowing across teams, departments, and key business processes every single day: contracts, invoices, employee records, financials, product specs, marketing assets, and more. Our mission is to bring intelligence to the world of content management and empower our customers to completely transform workflows across their organizations. With the combination of AI and enterprise content, the opportunity has never been greater to transform how the world works together and at Box you will be on the front lines of this massive shift. Why Box Needs You As a Software Engineer on the Automate team, you will be at the heart of Box's workflow automation platform - a product that empowers millions of users to automate complex business processes without writing code. The Automate team is a growing organization of ~30 engineers across four specialized teams, responsible for building the intelligent automation engine, intuitive user interface, and seamless integrations that enable organizations to transform how they work. In this role, you will design and develop full-stack solutions that span from backend automation logic to responsive frontend experiences. You'll work with Java and React/TypeScript to build scalable, performant systems that handle millions of workflow executions daily. You'll collabo

Leidos has an exciting opportunity for a Java Developer (SME) in our Intel Security Sector's Analysis Solutions Business Area . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary As a Java Developer you will to provide Agile DevOps support to mission critical systems. The candidate will provide technical expertise and support in the design, development, implementation and testing of the customer tools and applications in support of Extracting, Transforming and Loading data into an enterprise Data Lake. Based in a DevOps framework, the candidate will participate in and/or direct major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing. This role requires the development of custom code/scripts to quickly extract, triage and exploit data across domains and data stores. Primary Responsibilities: Design, develop, test and maintain high-performance, scalable backend microservices using Java and the Spring Framework to meet customer information technology needs. Participates in and direct software programming initiatives, shaping backend architecture, mentoring team members, and conducting code reviews. Develops and directs software system validation and testing methods using Junit and Katalon and uses integrated custom develo

Leidos has an exciting opportunity for a Principal Java Developer in our Intel Security Sector's Analysis Solutions Business Area . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary A Java developer on this program provides Agile development and operations and maintenance for mission critical systems. Based in DevOps framework, this role participates in major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing. Primary Responsibilities: Design, develop, test and maintain high-performance, scalable backend microservices using Java and the Spring Framework to meet customer information technology needs. Participates in software programming initiatives, shaping backend architecture, mentoring team members, and conducting code reviews. Develops and directs software system validation and testing methods using Junit and Katalon and uses integrated custom developed software solutions to leverage automated deployment technologies Develop, prototype and deploy solutions within a cloud-based platform leveraging platform services. Analyze (though proof of concept, performance, and end-to-end testing) and effectively coordinate Infrastructure needs driven by developed software to meet customer mission needs Support the Agil

Leidos has an exciting opportunity for a Sr. Java Developer in our Intel Security Sector's Analysis Solutions Business Area . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary A Java developer on this program provides Agile development and operations and maintenance for mission critical systems. Based in DevOps framework, this role participates in major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, design, coding and unit testing. Primary Responsibilities: Design, develop, test and maintain high-performance, scalable backend microservices using Java and the Spring Framework to meet customer information technology needs. Participate in software programming initiatives and code reviews. Develops software system validation and testing methods using Junit and Katalon and uses integrated custom developed software solutions to leverage automated deployment technologies Develop, prototype and deploy solutions within a cloud-based platform leveraging platform services. Support the Agile software development lifecycle following Program SAFe practices while coordinating closely with team members, Product Owners and Scrum Masters to ensure User Story alignment and implementation to customer use cases Document and perform systems software development, including dep

Who Are We? Postman is the world’s leading API platform, used by more than 45 million+ developers and 500,000 organizations, including 98% of the Fortune 500. Postman is helping developers and professionals across the globe build the API-first world by simplifying each step of the API lifecycle and streamlining collaboration—enabling users to create better APIs, faster. The company is headquartered in San Francisco and has offices in Boston, New York, Austin, Tokyo, London, and Bangalore - where Postman was founded. Postman is privately held, with funding from Battery Ventures, BOND, Coatue, CRV, Insight Partners, and Nexus Venture Partners. Learn more at postman.com or connect with Postman on X via @getpostman. P.S: We highly recommend reading The "API-First World" graphic novel to understand the bigger picture and our vision at Postman. The Opportunity As a Senior Backend Engineer on the Cloud Platform team, you will play a key role in building the core systems and services that power Postman’s internal platform. You’ll help create new backend services that manage how we deploy, scale, and operate our infrastructure and product services, leveraging Java, Spring Boot, and Hibernate (JPA) on top of cloud-native technologies like Kubernetes, ArgoCD, Istio, and Terraform. This role is highly impactful: the systems you build will be used across Postman engineering, enabling faster delivery, better scalability, and a stronger developer experience. You’ll also have the opportunity to contribute to open source, shaping tools that extend beyond Postman’s boundaries. What You’ll Do Design and develop backend services in Java and Spring Boot to support Postman’s internal Cloud Platform. Architect new services that manage service deployment, lifecycle, and scaling across Kubernetes clusters. Implement GitOps workflows (ArgoCD) to support continuous delivery. Integrate with cloud-native tooling such as Istio, Helm, and Terraform. Apply strong soft