Java Backend Lead Developer Jobs

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Software Engineer

Apex Systems

Charlotte, North Carolina, USA

Full-time

Job#: 2080060 Job Description: Apex Systems is currently hiring for a Software Engineer with a leading financial services client. This role involves designing and developing backend systems with a strong focus on integrating AI/ML capabilities into scalable production environments. Qualified candidates will have the following experience and skills: 8+ years of software development experience, including 3+ years in a leadership roleProficiency in Python and Java for backend developmentHands-on e

Lead MuleSoft Developer

TekLeaders, Inc

Jersey City, New Jersey, USA

Full-time, Part-time, Contract, Third Party

Skills Years of experience Rate out of 5 MuleSoft (recent on-hands Implementation) API Lifecycle AWS Services Dataweave Position Details Requirement Role Lead MuleSoft + AWS (On-hands experience) Location Hybrid in NJ Type of Hire - Contract/ C2H Contract Duration NA Number of Interviews 2 In person interviews Yes/No No Client Interview Yes/No Yes Position requirements (Remote/ Hybrid/Fully onsite) Hybrid in NJ Job Description Integration components. Following experience with MuleSoft is require

Lead MuleSoft Developer

TekLeaders, Inc

Jersey City, New Jersey, USA

Full-time, Part-time, Third Party, Contract

Skills Years of experience Rate out of 5 MuleSoft (recent on-hands Implementation) API Lifecycle AWS Services Dataweave Position Details Requirement Role Lead MuleSoft + AWS (On-hands experience) Location Hybrid in NJ Type of Hire - Contract/ C2H Contract Duration NA Number of Interviews 2 In person interviews Yes/No No Client Interview Yes/No Yes Position requirements (Remote/ Hybrid/Fully onsite) Hybrid in NJ Job Description Integration components. Following experience with MuleSoft is require

Lead Software Engineer - Sr. Frontend Web Developer

JPMorgan Chase & Co.

Columbus, Ohio, USA

Full-time

Job Description Be an integral part of an agile team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products. As a Lead Software Engineer at JPMorgan Chase within the Consumer & Community Banking - Global Technology team, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. Drive significant business impact through your capabilities and co

Sr., Java Developer

OpTech

Remote

Contract

OpTech is seeking for strong Java Developer role for one of their Direct Clients. 100% Remote role. Contract Duration - 5 months. Only W2/No C2C Required Skills: Strong backend Java developer with JDBC/SPRING/SPRINGBOOT/SPRINGBATCH JAVA/J2EE Why work at OpTech? OpTech is a woman-owned company that values your ideas, encourages your growth, and always has your back. When you work at OpTech, not only do you get health and dental benefits on the first day of employment, but you also have training o

Software engineer- $150k No C2C or Sponsorship allowed

Vaco by Highspring

Memphis, Tennessee, USA

Contract

Remote Key Responsibilities:Develop and maintain LLM-based chatbot solutions that support natural language interaction with structured and unstructured data. Implement retrieval-augmented generation (RAG) using vector databases like SingleStore, Pinecone, or OpenSearch. Fine-tune and integrate LLMs (e.g., GPT-4, Claude, Mistral) for targeted business use cases. Build and maintain APIs using Node.js or Python, and collaborate with frontend teams integrating chatbot services. Deploy and manage AI

Software Engineer Graduate (Experimentation and Evaluation) - 2025 Start (BS/MS)

TikTok

San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A212738A Apply to this job Share this listing: Responsibilities Our mission in the experimentation and evaluation team is to build the next-gen A/B testing platform, that empowers the company to make data-driven decisions for the products. The supported scenarios include recommendations, push, ads, search, mobile app, UI interaction and service upgrades etc. Our platform's capabilities cover the entire experiment life cycle, from ex

Java full stack developer

Quality IT Source, LLC

Mexico City, Mexico City, Mexico

Contract

need a full stack developer proficient is developong both front end and back end applications skills: Java springboot jquery sql AWS kafka

Senior Full Stack Software Engineer - GM Commercial Services

General Motors

Austin, Texas, USA

Full-time

Job Description Hybrid: This means the successful candidate is expected to report to their primary location (Austin, TX,) three times per week, at minimum. The Role: At General Motors, we have embarked on an ambitious journey to pioneer next-generation software solutions tailored for commercial fleet owners and their drivers, ranging from small and medium-sized businesses to large enterprises. As a leading Original Equipment Manufacturer (OEM), our extensive fleet of GM vehicles already travers

Application Penetration Tester II

Vaco by Highspring

Jacksonville, Florida, USA

Full-time

Job Title: Application Security Tester (Mid-Level) Employment Type: Full-Time Location: Onsite Washington, DC Work Authorization: Must be authorized to work in the U.S. (no sponsorship available) OverviewWe are seeking a mid-level Application Security Tester. The ideal candidate will have strong communication skills, a passion for innovation, and the ability to solve complex problems in a collaborative environment. This role involves hands-on security testing of web and mobile applications, inc

Full Stack Developer (ReactJs and React Native and Java)

SmartIT Frame

Minneapolis, Minnesota, USA

Contract

Job Title: Full Stack Developer (ReactJS, React Native, Java, Spring, Microservices) Location: Minneapolis, MN Job Description: We are seeking a skilled Full Stack Developer to build and maintain scalable web and mobile applications. The ideal candidate will be proficient in ReactJS, React Native, Java, Spring Boot, and microservices architecture. Key Responsibilities: Design and develop responsive applications for web and mobile platforms. Build and integrate RESTful APIs in a microservices-ba

QA Automation Tester

GreyCell Labs, Inc

New York, New York, USA

Contract, Third Party

84 months experience as the lead tester or senior tester 84 months experience working with all industry leading test tools from the following list of vendors: IBM, HP, or Microsoft 84 months experience creating SQL queries to validate correct back-end processing 84 months experience JAVA/VB script, Selenium, C/C++ 60 months experience working in HL7 FHIR environment testing and validating various FHIR resources 60 Months experience with API testing with usage of Postman or other similar tools. 3

SDET Manager

OnwardPath Technology Solutions LLC

San Francisco, California, USA

Contract

Job Title: SDET Manager Client Location: San Francisco, CA (2 days/week Work From Office - WFO) Experience: 6+ Years Domain: Lending Domain (Mandatory) Job Description: We are looking for an experienced SDET Manager to lead and manage our software development engineering in test (SDET) team. The ideal candidate will have strong leadership skills and hands-on experience in automation testing, QA strategy, and test framework development. This role requires presence in the San Francisco office 2 da

Senior Java/Spring Boot Developer - Worcester, MA, LOCAL

Motion Recruitment Partners, LLC

Worcester, Massachusetts, USA

Full-time

A local Massachusetts insurance company is searching for a senior Java/Spring Boot developer to join their team, where you'll play a crucial role in a core business unit handling 3-4 million transactions daily. *This job is hybrid 3 days a week in Worcester, MA* As a senior developer, you'll work on critical system calls, ensuring smooth and secure communication across their platform. This role also offers the exciting opportunity to support their cloud migration journey, as they transition from

Sr.Java Developer - Only W2 Profiles Need

Roha Tech LLC

Phoenix, Arizona, USA

Contract

Sr.Java Developer Exp - 10+Years Client - American Express Location-Phoenix,Arizona Skills- Github, GenAi, Copilot, JavaBackend, Frontend

Senior Java/Spring Boot Developer - Insurance, Boston Local

Motion Recruitment Partners, LLC

Boston, Massachusetts, USA

Full-time

A local Boston insurance company is searching for a senior Java/Spring Boot developer to join their team, where you'll play a crucial role in a core business unit handling 3-4 million transactions daily. *This job is hybrid 3 days a week in Boston* As a senior developer, you'll work on critical system calls, ensuring smooth and secure communication across their platform. This role also offers the exciting opportunity to support their cloud migration journey, as they transition from on-premises i

Senior Server Engineer, Trust & Safety

Strava, Inc.

Denver, Colorado, USA

Full-time

About This Role Strava is the app for active people. With over 150 million athletes in more than 185 countries, Strava is where connection, motivation, and personal bests thrive. No matter your activity, gear, or goals, we help you find your crew, crush your milestones, and keep moving forward. Our mission is simple: to motivate people to live their best active lives. We believe in the power of movement to connect and drive people forward. We're seeking a Senior Server Engineer to join our Tr

React UI Developer

Collabera LLC

Bothell, Washington, USA

Full-time

One of our Direct Client looking for React UI Developer JOB DETAILS Title: React UI Developer ( 6 positions ) Location: Bothell WA / Dallas TX ( Onsite ) Duration: 12 months Pay Range : $57-60/hr In Person Interview Only Please email me at to speak in detail about the job. Top Skills : ReactJS, NextJS, NodeJS, React UI Developer, React, React UI, Redux, front-end, JavaScript, HTML, CSS, Jest, React Testing Library, Java , AWS, Job Description We are seeking a highly skilled and motivated F

Fircosoft Developer

New York Technology Partners

New York, New York, USA

Contract, Third Party

Job Title: Fircosoft Developer Location: NYC, NY (2-3x per week in office) Must Have's: Client has shared: We require resources with hands-on keyboard experience deploying Fircosoft product in Linux and Oracle. Hands-on experience installing and configuring Fircosoft Continuity V6 products and Fircosoft Screening BoxKnowledge of Fircosoft rule writing for alert tuning, Auto Hit Qualifier, Workflow Accelerator, Stripping Detector, and Pairing ManagerExperience with Linux, Java, Containers, Oracle

Lead Big Data/Machine Learning Engineer

Strategic Staffing Solutions

Chicago, Illinois, USA

Contract

Job Title: Python and Java Developer w/AI Location: Chicago, ILPay $68-$75 Job Overview: The team is seeking a talented Python and Java Developer w/AI to enhance and support applications in the Loyalty and Marketing domain, with a strategic focus on integrating AI and machine learning into existing workflows. This role will involve a mix of software development, AI-driven innovation, and cross-team support, making it ideal for a candidate with solid backend development experience who is excit