Senior Java Engineer - Scalable Backend & Performance
Barclays
Barclays in Whippany, NJ designs and maintains Java-based enterprise applications across the full software lifecycle, delivering scalable, high‑performance systems through modern back-end architectures. This role emphasizes multithreading, caching, and robust testing to ensure production quality. You will collaborate with product teams and IT peers to implement APIs, libraries, and backend components, participate in code reviews, and uphold secure coding practices while driving continuous #J-18808-Ljbffr Barclays
- ...Services Corp. in Whippany, NJ seeks a Java Developer to design, develop, and... ...development life cycle. You will integrate backend components and APIs to support... ...system integration. The role emphasizes performance, scalability, and secure coding practices, with collaboration...SeniorPerformance
- New York Technology Partners seeks a Senior Java Engineer to join a collaborative team building enterprise... ...solutions. Lead design, implement scalable Java applications, and mentor... ...distributed teams, and continuously improve performance and reliability in a fast-paced, Agile...SeniorPerformance
- ...Alpharetta, GA is seeking an experienced Java Developer to join our Strategic Client... ...enterprise-grade Java applications, build scalable microservices with Spring Boot and Kafka... ....js front-end work, and a passion for performance tuning and mentoring juniors. #J-18808-...SeniorPerformance
- Next Gen Software Solutions LLC is seeking a Java Backend Resource with over 8 years of experience in backend application development. The role involves designing scalable, secure cloud solutions while developing microservices using Java 17+ and Spring Boot. You'll collaborate...Senior
- ...Job Title: SR Java Backend / Full Stack Developer LEAD Location: Whippany, NJ(Hybrid)... ...Responsibilities: Design, develop, and maintain scalable backend services using Java and Spring... ...business stakeholders Ensure high performance, security, and scalability of...SeniorPerformanceContract work
- QODE in New Jersey is seeking a highly skilled Java Developer with DevOps and Grafana experience to join the Incedo project team. The... ..., and QA to ensure reliable deployments. You will monitor performance with Grafana, build dashboards and alerts, and deploy to cloud...SeniorPerformance
- CoreWeave is seeking a Senior Software Engineer to design, build, and operate backend services and APIs at the heart of our SaaS infrastructure. You’ll write Go... .... You’ll tackle large scale, reliability, and performance challenges while championing a sustainable on‑call...SeniorPerformance
- ...Design, develop, and maintain scalable, cloud\'native backend services Build and... ...messaging platforms(Kafka) Engineer low\'latency, high\'... ...fault tolerance Optimize performance for compute\' and data\'intensive... ...~ Strong proficiency in Java, Python, or similar...SeniorPerformance
- Weights & Biases, now part of CoreWeave, is seeking a Software Engineer to scale our metrics and storage systems for our flagship Models product. You will lead efforts to optimize data ingestion, storage, and querying at scale, and partner with multiple teams to evolve...Senior
- A tech company in Newark, NJ is seeking an experienced Full Stack Developer to identify bugs and improve performance. The ideal candidate has over 5 years of experience, proficiency in Node.js or Python, and familiarity with frameworks like Angular or Vue.js. You'll be...SeniorPerformance
$170k
hackajob is looking for a Lead Engineer based in Whippany, NJ, to enhance its automated receivables product... ...this role, you will leverage your expertise in Java, Spring Boot, and cloud development to design scalable backend systems. A minimum annual salary of $170,000 and...- Photon is seeking a highly skilled Full Stack Engineer to design and develop scalable web applications in Parsippany, NJ. This role requires expertise... ...teams, ensuring secure, reliable, and high-performance applications. This position necessitates 8+ years of full...SeniorPerformance
- ...About Astra Astra is a high-impact engineering team building mission-critical financial... ...The Role We're looking for a Senior Backend Engineer to architect and build complex... ...engineering practices Optimize System Performance: Improve reliability and performance across...SeniorPerformanceRemote workFlexible hours
- SilverSearch, Inc. seeks a Senior MERN stack developer for their client in Livingston, NJ. This onsite position requires a strong backend-focused developer with experience in Node.js and... .... Responsibilities include designing scalable RESTful APIs and developing backend...Senior
- ...maintain server-side applications and backend services using Java technologies (e.g., Spring Boot) to meet business requirements and performance goals. Build and optimize RESTful... ...data access logic for reliability and scalability. Write clean, efficient, and maintainable...PerformanceShift work
- Fox Rothschild in Morristown, NJ seeks a Senior Applications Developer to own the full... ...deployment and ongoing maintenance. Design scalable, secure applications using modern... ...testing, and documentation, with focus on performance and cross-browser compatibility. #J-188...SeniorPerformance
- ...have experience building scalable web applications using... ...RESTful services and backend architecture (20%)... ...Experience with Node.js or Java backend frameworks... ...Optimize application performance and troubleshoot issues... ...managers, and fellow engineers Team Culture...PerformanceContract workImmediate start
- ...Type: Contract W2 Skills: Java Backend, K8 Micro Services, Redis, Memcache... ...development, cloud engineering, and enterprise system integration... ...with the ability to design scalable, secure, and resilient cloud... ...database load and optimize performance. Event‑Driven Systems: Work...PerformanceContract workLocal area
$189.59k
...Barclays Services Corp. seeks a Java Developer in Whippany, NJ (... ...by integrating backend components, APIs, and libraries... ...applications with a focus on performance, scalability, reliability, and optimization... ..., utilising various engineering methodologies, that provides...PerformanceHourly pay$182k - $242k
...As a Software and AI Engineer, IT Systems, you’ll design... ...experiences to robust backend services written in... ...end frameworks Develop scalable backend services in... ...Python, Go, C++, C#, or Java, specifically for delivering... ...experience, interview performance, and location. In...SeniorPerformancePermanent employmentTemporary workCasual workWork at officeFlexible hours- We are looking for an experienced AWS Network Engineer to design, implement, and manage scalable, secure, and highly available AWS network infrastructures... ..., infrastructure automation, network security, and performance optimization while collaborating with cross-...SeniorPerformance
- Coreweave is seeking experienced Engineers to design scalable, high-performance computing systems for AI workloads. You will manage large-scale infrastructure, utilizing Go, Python, and Kubernetes, while working with a supportive team. This role calls for at least 5 years...SeniorPerformanceFlexible hours
$170k
Join us as a Senior Software Engineer for CIAM at Barclays, where you will bring to life... ...across either JavaScript or Java, and you should be comfortable... ...and tools. Ensuring that code is scalable, maintainable, and optimised for performance. Cross‑functional collaboration...SeniorPerformanceHourly payWork at office- ...optimization of digital experience solutions. You will drive product innovation and digital transformation, define integration patterns, mentor teams, and ensure security, scalability and performance across CRM, CDP, marketing automation and data platforms. #J-18808-Ljbffr GalentSeniorPerformance
$146k
...Services LLC seeks AVP, Back End Engineer (multiple positions) in... ...develop, and test resilient and scalable solutions for any of the... ...which can include any of these: Java, Spring Boot, Python, Django,... ...maintainable, and optimized for performance. Cross‑functional...PerformanceHourly payShift work$115k - $125k
...Services Department, the Senior Applications Developer... ...designing and developing scalable, secure applications using... ...Ensure application performance, scalability, security,... ...Angular, or similar) Solid backend development experience (.NET, Java, Node.js, or Python) Hands...SeniorPerformanceFull timeContract workWork at office- AI AXISS INC is seeking a Senior Java Developer/Architect with 10+ years of Java experience and 3+ years leading teams. The role focuses... ...applications on AWS, migrating legacy systems, and delivering scalable microservices using Spring Boot. Located in Atlanta, GA or Raleigh...SeniorWork visa
$95k - $106k
...Competency: Software Engineering Industry/Sector: Not... ...and enhance business performance. In this field, you... ...delivering reliable, scalable, and cost-effective technology... ...operations. As a Senior Associate, you will leverage... ...languages such as Java, Python, and C++....SeniorPerformanceFull timeWork experience placementH1b$261.25k
Product Engineering Senior Manager (Accenture LLP; Morristown, NJ) Responsibilities Lead cross-functional mobile engineering... ...of mobile solutions that integrate with backend systems, ensuring scalability, performance optimization, and adherence to architectural best...SeniorPerformanceLocal area$115k - $168k
...combines superior infrastructure performance with deep technical... ...Director of Website Strategy , the Senior Front-End Web Developer will... ...stakeholders to develop scalable front‑end systems, support website... ...combines strong front‑end engineering skills with systems thinking...SeniorPerformancePermanent employmentTemporary workCasual workWork at officeFlexible hours
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