Explore 3 full stack java react js developer jobs from 3 hiring companies in Tonawanda, NY, US. Filter by remote, salary, experience, and company, then open any listing to apply.

full-stack-java-react-js-developer

Full Stack Java React Js Developer

North Tonawanda

Kenmore

Amherst

Grand Island

Buffalo

Cheektowaga

East Amherst

Niagara Falls

West Seneca

Depew

Lackawanna

Lockport

Grandyle Village

Lancaster

South Lockport

Williamsville

Harris Hill

Hamburg

Batavia

Full Stack Java React Js Developer Jobs

Capital One

eBay

Fitch Group

Hybrid

Onsite

At eBay, we&#39;re more than a global ecommerce leader — we’re changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We’re committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts.Our customers are our compass, authenticity thrives, bold ideas are welcome, and everyone can bring their unique selves to work — every day. We&#39;re in this together, sustaining the future of our customers, our company, and our planet.Join a team of passionate thinkers, innovators, and dreamers — and help us connect people and build communities to create economic opportunity for all.About the team: eBay’s Developer Ecosystem team offers resources that help developers create solutions to make buying and selling on eBay faster and easier. The team builds and manages eBay’s Public APIs and eBay’s world-class Developer Portal, which helps onboard new developers, gets them started with eBay APIs, and answers their questions about our products. APIs are first-class products at eBay. APIs allow our developer community to create powerful experiences and manage their eBay business at scale. Our goal is a large ecosystem of developer applications that add value to our buyers and sellers.About the role:We are looking for a highly motivated, talented and passionate Senior Full Stack Software Engineer to join the team to build the backend RESTful services, user experience and scalable solutions. You will have an opportunity to explore, learn new technologies, innovate and build AI powered tools, creatively design solutions to handle large volumes of data, and interact with highly motivated individuals. We expect someone with proven computer science fundamentals, a strong drive for results, thrives on continuous innovation, dreams big, self-starts, learns fast, gets things done while having fun.What you will accomplish:<ul><li>Design and develop public APIs, adhering to industry best practices and internal standards.</li><li>Own major projects and features from the design phase through coding, testing, deployment, and support.</li><li>Build platforms and frameworks to improve development efficiency, and proactively monitor and alert to identify issues before they reach customers.</li><li>Estimate engineering effort, plan implementations, and roll out system changes.</li><li>Identify project technical risks, make recommendations for mitigation, and maintain detailed documentation.</li><li>Develop high-quality, security-focused products through automation, thorough code and design reviews, and comprehensive testing.</li><li>Provide data-driven guidance to Product and other engineering leads on roadmap items.</li></ul>What you will bring:<ul><li>B.Sc. or M.Sc. in Computer Science or an equivalent professional experience and 8&#43; years of professional experience as a Full Stack Engineer or Software Engineer.</li><li>Expertise and hands-on experience in Java/J2EE, Spring, Spring Boot frameworks, Node.JS, Data Structures, XML, REST, JSON, and Internet Protocols.</li><li>Proficiency in front-end technologies (e.g., React, Angular)</li><li>Experience in web application (UI) development technologies: JavaScript, CSS, HTML5</li><li>Proficiency in a programming language with a strong foundation in data structures, algorithms, and a solid understanding of multithreading, synchronization, and concurrent programming. </li><li>Solid knowledge and experience with relational databases and/or NoSQL data technologies, ElasticSearch, and related toolsets.</li></ul>#LI-HybridAdditional DetailsThe base pay range for this position is expected in the range below:C$142,400 - C$190,100Base pay offered may vary depending on multiple individualized factors, including location, skills, and experience. The total compensation package for this position may also include other elements, including a target bonus and restricted stock units (as applicable) in addition to a full range of medical, financial, and/or other benefits (including RRSP eligibility, various paid time off benefits, such as PTO and parental leave). Details of participation in these benefit plans will be provided if an employee receives an offer of employment.This job posting relates to an existing vacancy within eBay.eBay is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, and disability, or other legally protected status. If you have a need that requires accommodation, please contact us at <a target="_blank" href="mailto:talent&#64;ebay.com">talent&#64;ebay.com</a>. We will make every effort to respond to your request for accommodation as soon as possible. View our <a target="_blank" href="https://ebayinc.com/accessibility/">accessibility statement</a> to learn more about eBay&#39;s commitment to ensuring digital accessibility.We use cookies to enhance your experience and may use AI tools for administrative tasks in the hiring process. To learn how we handle your personal data and use AI responsibly, please visit our <a target="_blank" href="https://jobs.ebayinc.com/us/en/talent-privacy-notice">Talent Privacy Notice</a>, <a target="_blank" href="https://www.ebayinc.com/company/privacy-center/">Privacy Center</a> and <a target="_blank" href="https://jobs.ebayinc.com/us/en/how-we-hire">AI Hiring Guidelines</a>.

Sr Full-Stack Software Eng (MTS1)

Full Stack Software Engineer

Senior Full Stack Engineer with 8+ years of experience; strong Java/J2EE, Spring/Spring Boot, Node.js, front-end React/Angular, REST/JSON, databases, and related technologies.

161 Bay Street (93021), Canada, Toronto,Toronto, Ontario,Staff Software Engineer - International Card Tech - Full-stackStaff Software EngineerAbout Capital One Canada.For 30 years, we’ve been on a mission to change banking for good and build relationships by making credit accessible, simple, intuitive and rewarding. We want to help Canadians succeed with credit, because we believe in people — in our customers, in our associates, and in talent like you!About the TeamJoin Capital One in Canada as we build the products that enable our millions of international Card customers. This team will specifically be working on the development of customer management capabilities for international Card users, including transitioning from an account-centric to a customer-centric decision-making model.This is a senior technical position (manager equivalent) that does not have direct reports. We require advanced hands-on development, technical design, and architecture.About the Role You’ll work alongside other Software Engineers on innovative projects. You’ll have the opportunity to learn, design and build software products from the ground up. You’ll share knowledge through conducting technical workshops/office hours, and participating in hackathons or community of practices or staff engineering forums. You’ll explain complex technical challenges and solutions to diverse stakeholders with tech and non-technical backgrounds.Here are a few of the ways we’re helping people take control of their credit:<ul><li>Helping customers view and monitor their credit scores with <a href="http://creditkeeper.capitalone.ca/" target="_blank">Credit Keeper</a> </li><li>Enabling customers to view and edit their Personal Information directly in the Mobile App</li><li>Providing customers 100% certainty which credit cards they’ll be approved for before they apply, by using <a href="https://findyourcard.capitalone.ca/" target="_blank">Quick Check™</a></li></ul>We’re all-in on the cloud and we’re leaders in the adoption of open source, RESTful APIs, microservices, and containers. We build our own products and release them with a speed and agility that allows us to get new customer experiences to market quickly. And, as a founder-led company, we’re inspired to make, break, do, and do good.<a href="https://www.youtube.com/watch?v&#61;zxoIT5WTJWs" target="_blank"> So, let’s do something great together.</a> Want to learn more? Check out <a href="https://www.youtube.com/watch?v&#61;ECCK47N_LRM&amp;list&#61;PLdQ7R7XCyxay6HBkS55l5hb1FZNSbbEJp&amp;index&#61;5" target="_blank">life at Capital One</a> in the Software Studio! Your Responsibilities:<ul><li>Work as part of a dynamic team throughout the Software Development Life Cycle</li><li>Act as a tech lead developer owning technical design and development of cross-functional, multi-platform, fault tolerant application systems</li><li>Utilize programming languages like JavaScript, Java, HTML/CSS, Angular/TypeScript, Python, React and/or Go, Open Source RDBMS and NoSQL databases, and a variety of AWS tools and services </li><li>Continuously improve software engineering developer experience;  identify gaps in existing internal framework and tools and contribute</li><li>Establish Engineering best practices; identify and establish best practices and standards, such as code review standards. </li><li>Technical expertises and Problem solving; define technical standards and providing technical support to ensure Engineering best practices are consistently met</li><li>Architecture ownership - apply strong understanding of how evolving technology affects domain, follow High Level Design (HLD) methodology and contribute to HLD</li><li>Provide mentorship to junior and intermediate associates through engineering best practices and standards</li></ul>Basic Qualifications:<ul><li>Proficiency in building both the user-facing front-end and the server-side back-end of applications as this is a Full-Stack role</li><li>At least 8 years of hands-on development experience preferably using at least two or more of the following programming languages: JavaScript, Java, Angular/TypeScript, Python, Node.js, React, and/or Go</li><li>At least 8 years of experience with application and/or data design, architecture and development  </li><li>Experience with AWS (highly preferred) or other cloud products (Microsoft Azure, Google Cloud)</li><li>Experience providing mentorship to Junior/Intermediate Associates and guidance to technical and business stakeholders</li></ul>Preferred Qualifications:<ul><li>10&#43; Years of experience leading the full life-cycle of Software Development </li><li>Experience working in an agile environment and familiar with agile development methodologies </li><li>Bachelor&#39;s Degree</li></ul>Working at Capital One.Enjoy a hybrid work environment, with 3 days in the office. Build a comfortable workspace with our one-time, Work From Home allowance and enjoy our head office located conveniently across the street from Union Station.Live well—physically, financially and emotionally. Receive support for you and those who are most important to you, with full coverage for spouses, domestic partners, and dependents. With up to $3000 in mental health coverage and up to $5000 in tuition subsidies per year—and much more—you’ll discover that Capital One is committed to helping you live your best life.We may use your information for automated decision making. We may, for certain purposes, render a decision based exclusively on automated processing of your personal information as a part of the candidate screening process.Capital One Canada is an equal opportunity employer committed to fostering a diverse and inclusive work environment. We consider all qualified applicants and will meet the needs of those requiring reasonable accommodations.If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation, please contact Capital One Recruiting at 1-800-304-9102 or via email at <a href="mailto:ARCanada&#64;capitalone.com" target="_blank">ARCanada&#64;capitalone.com</a>. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations.For technical support or questions about Capital One&#39;s recruiting process, please send an email to <a href="mailto:Careers&#64;capitalone.com" target="_blank">Careers&#64;capitalone.com</a>Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site.Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC).

Staff Software Engineer - International Card Tech - Full-stack

Staff Software Engineer

Full-stack engineer with 8+ years of hands-on development, strong AWS experience, and expertise across JavaScript, Java, Python, and frontend frameworks.

Homepage | Fitch Group

<h1 style="margin-right:0.0in;margin-left:0.0in;font-size:24.0pt;font-family:&#39;Times New Roman&#39;, serif;font-weight:bold">Software Engineer, Full-Stack Applications – Ratings Technology</h1>
Location: Toronto
Fitch Ratings is seeking a Software Engineer to join our global Ratings Technology team in Toronto. You'll build and maintain mission-critical full-stack applications that power how a world-leading credit ratings agency delivers insights to analysts, executives, and decision-makers who shape global financial markets.
You'll work on Ratings workflow and analytical applications using modern technologies across the full stack—from backend services in Java and Python to frontend applications in React. This role offers the opportunity to work with cutting-edge cloud technologies, contribute to technical solutions, and grow your skills in a collaborative environment.
<h2 style="margin-right:0.0in;margin-left:0.0in;font-size:18.0pt;font-family:&#39;Times New Roman&#39;, serif;font-weight:bold">What We Offer:</h2>
• Impactful work – Build applications used by analysts worldwide with direct visibility to your contributions
• Modern technology stack – Work with Java, Python, React, AWS, Kubernetes, and emerging AI technologies
• Continuous learning – Training, certifications, conferences, and clear paths to senior/principal/architect tracks
• Flexible environment – Work from our Toronto office with hybrid flexibility, competitive compensation, comprehensive benefits, and work-life balance
• Innovation culture – Experiment with new technologies, contribute ideas, and help shape technical decisions
<h2 style="margin-right:0.0in;margin-left:0.0in;font-size:18.0pt;font-family:&#39;Times New Roman&#39;, serif;font-weight:bold">We'll Count on You To:</h2>
• Develop and maintain full-stack applications – Build robust, scalable applications using Java/Springboot, Python (FastAPI/Flask), and ReactJS following best practices and design patterns
• Contribute to the development lifecycle – Write clean, maintainable code, implement CI/CD pipelines with GitHub Actions, deploy to Kubernetes, and ensure quality through testing and code reviews
• Work with diverse data technologies – Develop solutions using RDBMS (PostgreSQL, Oracle) and NoSQL (MongoDB) databases, optimize queries, and ensure data integrity
• Collaborate across teams – Partner with product managers, analysts, and other engineers to understand requirements and deliver solutions that meet business needs
• Apply engineering best practices – Follow SOLID principles and design patterns, participate in code reviews, solve technical challenges, and contribute to code quality
• Support and improve systems – Troubleshoot production issues, optimize performance, and help ensure reliability of applications at scale
• Stay current with technology – Learn and experiment with emerging technologies, share knowledge with the team, and contribute to continuous improvement
<h2 style="margin-right:0.0in;margin-left:0.0in;font-size:18.0pt;font-family:&#39;Times New Roman&#39;, serif;font-weight:bold">What You Need to Have:</h2>
• Full-Stack Engineering Experience – 7+ years of hands-on experience building enterprise applications and modern web technologies in production environments
• Software Engineering Fundamentals – Strong understanding of OOP concepts, design patterns, SOLID principles, algorithms, data structures, and ability to write clean, maintainable code
• Backend Development – Proficiency in Java, Spring Boot, Maven, and Python (Pandas, FastAPI, Flask) for building enterprise applications, data processing, and API development
• Frontend Development – Experience with ReactJS, Node.js, TypeScript/JavaScript, and modern web development practices
• Database Technologies – Hands-on experience with RDBMS databases (e.g., Oracle, PostgreSQL) and NoSQL databases (e.g., MongoDB)
• DevOps &amp; Cloud – Experience with CI/CD pipelines, GitHub Actions, Kubernetes (K8s), shell scripting (Bash) for automation, and AWS cloud platform
• Effective communication and teamwork – Ability to collaborate with cross-functional teams and communicate technical concepts clearly
<h2 style="margin-right:0.0in;margin-left:0.0in;font-size:18.0pt;font-family:&#39;Times New Roman&#39;, serif;font-weight:bold">What Would Make You Stand Out:</h2>
• AI and Machine Learning – Understanding of AI/ML concepts, experience with LLMs, prompt engineering, or integrating AI capabilities into applications
• Data Technologies – Experience with Kafka, PySpark, Parquet and Avro data formats, Apache Airflow for workflow management, or Streamlit for building interactive data applications
• Advanced Data Management – Strong SQL design, query optimization, and database architecture expertise
• Observability – Experience with observability patterns and tools like Datadog, distributed tracing, monitoring, and logging best practices
• DevOps and Infrastructure – Familiarity with ArgoCD for GitOps and Security/Access Management (IAM federation access via Entra ID)
• Financial Services Background – Experience with analytical workflows, financial products, or regulatory processes<h2 style="margin-right:0.0in;margin-left:0.0in;font-size:18.0pt;font-family:&#39;Times New Roman&#39;, serif;font-weight:bold"> </h2>
<h2 style="margin-right:0.0in;margin-left:0.0in;font-size:18.0pt;font-family:&#39;Times New Roman&#39;, serif;font-weight:bold">Why Fitch?</h2>
At Fitch Group, the combined power of our global perspectives is what differentiates us. Our global network of colleagues comes together to accomplish things greater than they ever could alone.
Every team member is essential to our business, and each perspective is critical to our success. We embrace a diverse culture that encourages a free exchange of ideas, guaranteeing your voice will be heard and your work will have an impact, regardless of seniority.
We are building incredible things at Fitch, and we invite you to join us on our journey.
<h2 style="margin-right:0.0in;margin-left:0.0in;font-size:18.0pt;font-family:&#39;Times New Roman&#39;, serif;font-weight:bold">About Fitch Group</h2>
Fitch Group is a global leader in financial information services with operations in more than 30 countries. Wholly owned by the Hearst Corporation, we are comprised of three main businesses: Fitch Ratings | Fitch Solutions | Fitch Learning.
For more information please visit our websites: <a href="http://www.fitchratings.com">www.fitchratings.com</a> | <a href="http://www.fitchsolutions.com">www.fitchsolutions.com</a> | <a href="http://www.fitchlearning.com">www.fitchlearning.com</a>
<div style="text-align:center;margin:0.0in 0.0in 8.0pt;line-height:115%;font-size:12.0pt;font-family:Aptos, sans-serif" align="center"><hr align="center" size="2" width="100%"></div>
Fitch is committed to providing global securities markets with objective, timely, independent and forward-looking credit opinions. To protect Fitch's credibility and reputation, our employees must take every precaution to avoid conflicts of interests or any appearance of a conflict of interest. Should you be successful in the recruitment process at Fitch Ratings you will be asked to declare any securities holdings and other potential conflicts prior to commencing employment. If you, or your immediate family, have any holdings that may conflict with your work responsibilities, you may be asked to divest yourself of them before beginning work.
Fitch Group is proud to be an Equal Opportunity and Affirmative Action Employer. We evaluate qualified applicants without regard to race, color, national origin, religion, sex, sexual orientation, gender identity, disability, protected veteran status, and other statuses protected by law.
 
 
#LI-Group 
#LI-AT
#LI-Hybrid

Software Engineer, Full-Stack Applications (Toronto) (Toronto, ON, CA)

Software Engineer

7+ years of full-stack enterprise application experience; strong backend (Java/Spring Boot, Python) and frontend (React) skills; cloud and DevOps proficiency; collaboration and communication skills.

Full Stack Java React Js Developer Jobs in Tonawanda, NY, US | HiringCafe: every job on earth

Full Stack Java React Js Developer Jobs in Tonawanda, NY, US

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