Senior Java Backend Developer
CX25WW
Role Description We are looking for an experienced Senior Backend/API Developer to architect, develop, and maintain the backend infrastructure that powers the Ardhanarishvara platform. The successful candidate will design scalable APIs, secure integration layers, authentication services, event-driven workflows, and cloud-native backend systems capable of supporting high availability, data security, and future expansion. This is a senior engineering role with significant influence over technical architecture and engineering standards. Key Responsibilities Design scalable backend architecture and microservices. Develop secure RESTful and GraphQL APIs. Build API gateways and middleware for internal and external integrations. Design and manage relational and NoSQL databases. Integrate the backend with Flutter mobile applications. Implement secure authentication and authorization services. Develop asynchronous processing and event-driven workflows. Integrate approved government digital services and external APIs. Build integrations with enterprise applications and SaaS platforms. Monitor application performance and optimize backend services. Ensure security, privacy, logging, auditing, and compliance. Collaborate with mobile developers, AI engineers, UI/UX designers, QA, and DevOps teams. Conduct architecture reviews and code reviews. Produce technical documentation and API specifications. Qualifications 7+ years in backend software development. Minimum 5 years designing enterprise APIs. Experience delivering production-grade cloud applications. Demonstrated experience leading backend architecture for complex, integrated platforms. Equivalent professional experience with a strong technical portfolio will also be considered. Requirements Core Technical Skills Backend Languages: Node.js (Preferred), Python, Java, .NET Core, Go Frameworks: Express.js, NestJS, FastAPI, Spring Boot, ASP.NET Core API Development: REST APIs, GraphQL, OpenAPI (Swagger), Webhooks, API Gateway, OAuth 2.0, JWT Authentication Databases: PostgreSQL, MySQL, Microsoft SQL Server, MongoDB, Redis Cloud Platforms: Microsoft Azure, Amazon Web Services (AWS), Google Cloud Platform (GCP) Containerization
$53.58k - $122.4k
...role Job Description We are seeking an experienced Senior Full Stack Java Developer with a strong background in enterprise application development... ...-Production Support Required Technical Skills Backend Technologies Core Java Java/J2EE Spring Boot...SeniorFull timeLocal area- ...Role Description Join us as a Senior Backend Developer on our mission to turn payments into possibilities! We are looking for a Senior Backend Engineer... ...services, ideally with Go. Transferable experience in Java, Rust, C#, or similar backend languages is also valuable when...SeniorContract work
CellPoint Digital
New York, NY3 days ago - ...Title: Sr. Java Backend Developer Location: NYC, NY Duration: 6+ Months Contract Rate: $Open/hr. Requirements Required Skills ~8+ years of experience in software Development. ~ Strong experience with Java Backend ~ Strong experience...SeniorContract work
- ...a few. We have an excellent reputation with the clients. Currently, we are looking for entry-level software programmers, Java Full stack developers, Python/Java developers, data analysts/data scientists, and machine learning engineers. Who should apply? Recent computer...SuggestedH1b
SynergisticIT
New York, NY2 days ago - ...technologies or frameworks (e.g., AWS Certified Developer, Microsoft Azure Developer). Agile or project... ...Proficiency in server-side languages such as Python, Java, Ruby, PHP, C#, or Node.js. Frameworks : Experience with backend frameworks (e.g., Django, Spring, Express)....SeniorInternship
Dawson Walsh LLC
New York, NY2 hours ago - ...Entertainment & Sports LLC is looking for a Senior Engineer to design and implement high-... ...Disney’s content. The role encompasses both backend and frontend development, collaborating... ...should have strong expertise in Java, Spring Boot, and Vue.js, along with a passion...Senior
5014 Disney Entertainment & Sports LLC
New York, NY2 hours ago - ...Responsibilities Design, build, and maintain backend services in Java, focusing on performance, scalability... ...disruption to existing systems Develop and maintain RESTful APIs and... ...priorities evolve and autonomy is key Seniority level Mid-Senior level Employment type...SeniorFull timeRemote work
$139.6k - $200k
...CO and Charlotte, NC area) Position Summary Join our mission to transform our nation's healthcare system as a Senior Backend Software Developer. In this role you will assist in leading projects from design to delivery. Partner with product managers and designers...SeniorLocal areaFlexible hoursCapital Rx
New York, NY4 days ago- ...Hands-On Java Developer MS is looking for a hands-on Java developer with 7+ years of experience in the relevant industry. Banking/financial domain experience will be a plus, but it is not mandatory. The candidate should have expertise in Java, Spring boot, restful...Temporary work
- ...Senior Java Developer 100% onsite presence needed Location: Charlotte, NC Duration: 12 Months Senior Java Developer who has got extensive experience on core Java, multithreading, spring modules, REST API, knowledge on.NET and .NET core and caching frameworks...Senior
Georgia IT Inc
New York, NY5 days ago - ...Globalchannelmanagement is seeking a skilled Java Full Stack Developer with 8 years of experience. The role requires a deep understanding of Core Java, J2EE, and related technologies. Candidates should exhibit strong skills in Spring Framework, Hibernate, and React UI...Senior
Global Channel Management
New York, NY2 hours ago - ...A leading software solutions provider is seeking an experienced Senior Java Developer located in New Jersey. The ideal candidate will have over 5 years of experience in Java development, specifically with Spring Boot, Angular, and Couchbase. This role requires collaboration...Senior
Compunnel
New York, NY2 hours ago - ...Citi is seeking an Applications Development Senior Programmer Analyst - AVP in a hybrid role based in Tampa, FL. The candidate will design and deliver enterprise Java/J2EE applications supporting regulatory reporting for risk and finance, while also enhancing front-end...Senior
Citi
New York, NY2 hours ago - ...Job Title Proficient in java with a good knowledge of its ecosystem with test-driven development Very good understanding of object oriented programming Familiar with various design and architectural patterns Knowledge of concurrency patterns in Java Creating database...Senior
Kaav Inc.
New York, NY4 days ago - ...Job Summary: • Design and develop robust, scalable, and high-performance backend applications using Java 17+ and modern frameworks. • Build and maintain RESTful APIs and microservices using Spring Boot 3.3.x, ensuring reliability, security, and performance. • Implement...Senior
Omni Inclusive
New York, NY2 days ago - ...Job Title Must have: ~6+ years of enterprise development experience (Java/JDK 8+) ~ Experience developing High-Performance and Distributed Applications ~ Experience with Message Brokers (ActiveMQ, RabbitMQ, Kafka, or similar) ~ Experience with Cache/In-Memory...Senior
JConnect Infotech
New York, NY5 days ago $142.32k - $213.48k
## Senior Java Developer, FX eCommerce, Vice PresidentApplyremote type: Hybridlocations: New York New York United States: Jersey City New Jersey... ...responsible for architecting, building and maintaining backend systems that serve a large number of institutional clients....SeniorFull timeWork experience placementCitibank (Switzerland) AG
New York, NY2 hours ago- Senior Java Fullstack Developer Job Overview The Applications Development Senior Programmer Analyst is an intermediate level position responsible... ...years of relevant experience with Python or Java — both backend and frontnd. Experience in systems analysis and programming...Senior
- ...Fixed Income Cash Java Developer Hands on Lead Java Developer with over 10 years of enterprise development experience Collaborates with multiple business lines Develop system architectures, designs and concepts Provide work estimates as needed Communicate...SeniorWork at office
Euclid
New York, NY4 days ago - ...New Jersey, Parsippany 12/09/2025 Contract Active Job Description: Job Summary We are seeking an experienced Senior Java Developer with strong expertise in Spring Boot, Angular, and NoSQL databases (Couchbase). This role involves designing and implementing scalable applications...SeniorContract work
Compunnel
New York, NY2 hours ago - # Senior Java Full Stack DeveloperApply**Job#: 3044668****Job Description:**Senior Java Full Stack Developer**Location:** Pennington, New Jersey (Onsite)Role OverviewThis position supports... ...Design and develop RESTful services, backend components, and UI features, including...SeniorHourly payContract work
Apex Systems
New York, NY2 hours ago - ...technology products. As a Senior Lead Software Engineer at JPMorgan Chase... ..., contractors, and vendors Develops secure and high-quality production code... ...with development experience in Java 21 with building RESTful backend applications using Spring Boot...SeniorFull timeFor contractors
JPMorgan Chase & Co.
New York, NY1 day ago - # Senior Java Full Stack DeveloperApply**Job#: 3044668****Job Description:**Senior Java Full Stack Developer**Location:** Pennington, New Jersey (Onsite)Role OverviewThis position supports... ...Design and develop RESTful services, backend components, and UI features, including...SeniorHourly payContract work
$125k - $180k
...The Engineering team at Book of the Month is responsible for developing and maintaining customer-facing features on our website and mobile... ...while maximizing business impact. We are looking for a Senior Backend Software Engineer to architect creative technical solutions...SeniorFull time- ...the place to do it. What we're looking for As a Backend Engineer, you’ll design, develop, and maintain scalable, secure, and high-performing backend... ...) Our technology stack is based predominantly on Java 25 on the backend with Postgres database We rely on Spring...SeniorWork at office3 days per week
Arq
New York, NY19 days ago - ...love to meet you. For more information, check out centari.com or find us on LinkedIn. About the Role We are hiring a Senior Software Engineer, Backend to join our product team. You'll be a key player in designing and building Centari's core AI technology, working...SeniorFull timeWork at officeFlexible hours
- ...would look like Fin. About the role We are looking for a Senior Backend Engineer to own the core systems that make this work. You... ...patterns. Build internal tools and automation that improve developer productivity and system reliability. Set and guide...SeniorFull timeWorldwide
Fin
New York, NY1 day ago - ...to customers, make technical decisions, and ship. Role: Senior Backend Software Engineer We're a tiny engineering team building... ...production Experience with LLM workflows, agents, evals, or developer tooling Experience modeling complex operational or...SeniorFull timeWork at office
Alpaca Health
New York, NY1 day ago - ...Kinvr is seeking a Senior/Staff Backend Engineer in New York City. Join a fast-growing travel tech company and contribute to complex booking systems, content and supplier integrations, and internal infrastructure. You will own epics end to end, collaborate with product...Senior
Kinvr
New York, NY5 days ago - ...OuterSignal, a startup building the customer intelligence layer for commerce, is seeking a senior backend engineer to own core systems and data pipelines. You’ll design scalable infra to process millions of orders, implement vector DB/RAG workflows, and ship end-to-end...Senior
Outersignal
New York, NY2 hours ago
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