Senior Full-Stack Engineer

Senior Full Stack Engineer (Java+React)

We are looking for an experienced Senior Java Full Stack Engineer to join our de...

Location

Poland; Romania; Ukraine

Salary:

Not provided

N-iX

Expiration Date

Until further notice

Requirements

BS degree in Computer Science or equivalent combination of education and experience
5-6+ years of full-stack development
5-6+ years of experience in the following technologies: Java, Spring
Experience with Functional Programming and Java Streams
2+ years of experience in front-end development with React
Experience with developing a reactive UI (Reactive JS)
2+ years of experience in TDD/BDD development in the following frameworks: Junit, Jasmin, Mockito, Protractor/Selenium
2+ years of experience in micro-services-based architecture and tools (Spring Boot/Cloud)
Experience in DevOps development and Jenkins
Experience in development in Kotlin – an advantage

Job Responsibility

Hands-on full-stack development of innovative applications
Owning the entire development cycle, including design, architecture, development, and DevOps
Working in XP with Remote pairing

What we offer

Flexible working format - remote, office-based or flexible
A competitive salary and good compensation package
Personalized career growth
Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
Active tech communities with regular knowledge sharing
Education reimbursement
Memorable anniversary presents
Corporate events and team buildings
Other location-specific benefits

Fulltime

Senior Full Stack Java Engineer

The Senior Full Stack Java Engineer role involves designing, developing, and ope...

Location

United States , New York City

Salary:

Not provided

NTT DATA

Expiration Date

Until further notice

Requirements

8+ years of experience in software development, with strong focus on full-stack application development
8+ years of experience with Java-based backend development
5+ years of experience developing modern front-end applications using React or similar frameworks
5+ years of experience building scalable APIs and backend services using REST/JSON architectures
Solid in DevOps with hands on knowledge in CI/CD pipelines, Jenkins and related toolset

Job Responsibility

Design, develop, and operate end-to-end full-stack applications including front-end user interfaces, back-end services, and supporting infrastructure
Own the complete software development lifecycle including system design, development, testing, deployment, monitoring, and production support
Build and operate applications using modern GitOps-driven SDLC practices to ensure reliable and repeatable deployments
Develop scalable, highly performant, and resilient distributed systems with strong focus on reliability and operational efficiency
Participate in production operations including monitoring, incident resolution, root cause analysis, and system optimization following “you build it, you run it” principles
Collaborate with product managers, business stakeholders, and cross-functional teams to translate functional requirements into robust technical solutions
Develop responsive and component-based user interfaces using modern front-end technologies and frameworks
Design and implement secure and scalable APIs and backend services using REST/JSON standards
Ensure backward compatibility, version control, and maintainability in API design and service development
Work with Kubernetes-based environments to deploy, scale, and manage containerized applications

Senior Java React Full Stack Developer

The JAVA Full Stack Senior Developer role is an intermediate level position resp...

Location

Canada , Mississauga

Salary:

94300.00 - 141500.00 USD / Year

Citi

Expiration Date

Until further notice

Requirements

Excellent communication and collaboration skills, with the ability to articulate complex technical concepts to diverse audiences.
6+ years of professional experience in full-stack software development, with a proven track record of delivering complex, large-scale, enterprise-level applications
6+ years of hands-on experience designing micro-service-based application
Strong hands-on experience with modern JavaScript frameworks, specifically React.js and TypeScript, for building sophisticated user interfaces
Deep proficiency in Java and the Spring Boot framework for building enterprise-grade microservices
Low-latency, scalable, high-throughput API development (Spring Boot, Hibernate/JPA)
Hands-on experience with a major cloud platform (AWS, Azure, or GCP) and containerization technologies (Docker, Kubernetes, OpenShift). Familiarity with CI/CD pipelines (Jenkins, GitHub Actions) is essential.
Problem-solving, troubleshooting, and clean code (Core Java, J2EE, Collections, Multithreading)
API integration (third-party libraries, security)
Distributed, multi-tier application, Reusable components/services development experience

Job Responsibility

Utilize mature programming methodologies and languages, including Java Spring Boot and React.js, to deliver and maintain high-quality software solutions.
Design, develop, test, and deploy end-to-end solutions, from responsive React.js front-end components to resilient Java Spring Boot microservices.
Architect and implement RESTful APIs and expose backend functionality as MCP (Model Context Protocol) services to be consumed by AI agents.
Deploy and manage applications within Citi's cloud environment (leveraging OpenShift/Kubernetes and AWS), integrating with cloud-native storage like S3 and enterprise databases like Oracle as a Service (OraaS).
Partner with and contribute to a cross-functional team of product managers, designers, and other engineers to translate business requirements into high-quality technical solutions.
Evaluate and recommend new and emerging technologies, including the application of AI, to solve complex business problems.
Ensure software components are designed and implemented to be of high quality, reusable, and easily maintainable.
Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations.
Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, model development, and establish and implement new or revised applications systems and programs to meet specific business needs or user areas
Monitor and control all phases of development process and analysis, design, construction, testing, and implementation as well as provide user and operational support on applications to business users

Fulltime

Senior Full Stack Java Engineer

The Senior Full Stack Java Engineer will be responsible for designing and develo...

Location

United States , New York City

Salary:

Not provided

NTT DATA

Expiration Date

Until further notice

Requirements

8+ years of experience in software development, with strong focus on full-stack application development
8+ years of experience with Java-based backend development
5+ years of experience developing modern front-end applications using React or similar frameworks
5+ years of experience building scalable APIs and backend services using REST/JSON architectures
Solid in DevOps with hands on knowledge in CI/CD pipelines, Jenkins and related toolset

Job Responsibility

Design, develop, and operate end-to-end full-stack applications including front-end user interfaces, back-end services, and supporting infrastructure
Own the complete software development lifecycle including system design, development, testing, deployment, monitoring, and production support
Build and operate applications using modern GitOps-driven SDLC practices to ensure reliable and repeatable deployments
Develop scalable, highly performant, and resilient distributed systems with strong focus on reliability and operational efficiency
Participate in production operations including monitoring, incident resolution, root cause analysis, and system optimization following “you build it, you run it” principles
Collaborate with product managers, business stakeholders, and cross-functional teams to translate functional requirements into robust technical solutions
Develop responsive and component-based user interfaces using modern front-end technologies and frameworks
Design and implement secure and scalable APIs and backend services using REST/JSON standards
Ensure backward compatibility, version control, and maintainability in API design and service development
Work with Kubernetes-based environments to deploy, scale, and manage containerized applications

At SitePen, senior engineers are trusted to do meaningful work with other highly...

Location

United States

Salary:

Not provided

SitePen

Expiration Date

Until further notice

Requirements

Typically 15+ years of full-time software engineering experience, though exceptional candidates with fewer years are welcome.
Comfortable owning problems from browser to database to cloud infrastructure.
Able to communicate effectively with engineers, product teams, and executives.
Cares about outcomes, reliability, maintainability, and leaving systems better than they were found.
Knows when to move quickly, when to be deliberate, and when to challenge assumptions constructively.
This role assumes strong experience with AI-assisted software development and the ability to use modern tooling effectively across day-to-day engineering work, including: Solution design and technical exploration
Coding and implementation speed
Refactoring legacy systems
Debugging and root-cause analysis
Test generation and automation

Job Responsibility

Build and deliver production software across the stack
Architect practical solutions grounded in business needs
Work directly with customers, product leaders, and engineering teams
Improve systems that are slow, fragile, outdated, or difficult to scale
Raise standards through example and collaboration
Make strong technical decisions and clearly explain tradeoffs
Support other engineers through reviews, mentoring, and leadership

What we offer

Competitive compensation based on experience and impact
benefits that support a sustainable career and life outside work
Trust and autonomy
Talented peers
Practical processes
Respect for life outside work
Interesting technical challenges
Long-term thinking over short-term chaos

Fulltime

Senior Java Engineer - Full Stack, Vice President

The Senior Java Full-Stack Engineer is an experienced, individual contributor po...

Location

United Kingdom , London

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

6-10 years progressive hands-on experience in software engineering
Demonstrated history of technical growth and tackling increasingly complex challenges in a full-stack capacity
Verifiable experience in designing, building, and maintaining large-scale, distributed, and mission-critical applications
Deep understanding of scalability, high availability, security, and observability
Comprehensive experience across the entire software development lifecycle (SDLC)
Strong proficiency in back-end development with Java, including Spring Boot
Proven experience designing, building, and operating applications based on microservice architecture
Strong proficiency in front-end development with React or Angular
Demonstrated experience utilizing AI-powered development tools
Deep understanding of engineering fundamentals including data structures, algorithms, design patterns, and best practices

Job Responsibility

Actively participate in the entire software development lifecycle (SDLC), from requirements analysis and technical design to coding, testing, deployment, and maintenance of both front-end and back-end components
Design, develop, and maintain resilient and scalable back-end services and APIs using Java and a microservice-based architecture
Design, develop, and implement intuitive and responsive user interfaces with a strong focus on front-end technologies like React or Angular
Integrate AI-powered development tools into the software development lifecycle (SDLC) to enhance productivity, code quality, and innovation
Champion and enforce high standards for code quality, performance, and security through strong code review practices across the full stack
Review and analyze proposed technical solutions for projects, providing expert guidance on architecture and design for distributed systems
Contribute to the formulation of technical strategy and roadmaps for application development
Develop a comprehensive understanding of how different business areas integrate to accomplish firm-wide goals
Provide evaluative judgment based on the analysis of factual data in complex and unique situations
Drive the delivery of end results on projects, ensuring high standards of quality and adherence to timelines

Fulltime

Senior Full-Stack Engineer

N-iX is looking for Senior Full-Stack Engineer (Spanish-speaking) to join the te...

Location

Salary:

Not provided

N-iX

Expiration Date

Until further notice

Requirements

5+ years of software development experience
4+ years of strong Java development experience with Maven
2–3 years of experience with Spring framework and building Spring-based web applications
Solid understanding of microservices architecture and RESTful APIs (OpenAPI)
Experience with modern frontend technologies including React, Redux, Redux-Saga, TypeScript, ES6
Experience with HTML5, CSS3/SCSS, responsive design techniques, and frontend performance optimization
Strong knowledge of OOP, OOD, DDD, and design patterns
Experience with relational databases and NoSQL solutions (e.g., MongoDB)
Experience working with cloud platforms such as AWS or Azure
Experience working in Agile environments and understanding Agile development practices

Job Responsibility

Participate actively and constantly in the design and development of APIs
Ensure the availability and resilience of its services that help the development of the company’s business
Ensure the quality of development and code cleanliness (Clean Code)
Continuously perfect our style guides, design, and code patterns as well as our React component library
Implement the scripts for the automation of the test cases
Automatic and manual exploratory execution during the development to verify that the acceptance criteria are covered
Maintain and evolve automated test cases with QA
Work in close contact with the Product Owner and support in the technical definition of product backlog items
Guarantee continuous deployment, write qualitative, maintainable code with extensive test coverage in a fast-paced professional software engineering environment
Suggest technical and functional improvements to add value to the product

What we offer

Flexible working format - remote, office-based or flexible
A competitive salary and good compensation package
Personalized career growth
Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
Active tech communities with regular knowledge sharing
Education reimbursement
Memorable anniversary presents
Corporate events and team buildings
Other location-specific benefits

Fulltime

Senior Full-Stack Engineer (UGC)

Yotpo is leading the next era of trust and loyalty in eCommerce. With AI-powered...

Location

Bulgaria , Sofia

Salary:

Not provided

Yotpo

Expiration Date

Until further notice

Requirements

Deep backend expertise with event-driven and microservices architectures, plus strong grasp of scalable, resilient system design
Proven, hands-on experience with Java and Spring Boot, building and operating robust production services
Solid knowledge of data structures, design patterns, and OOP, with pragmatic trade-off thinking
End-to-end ownership of services—architecture, implementation, testing, deployment, observability/monitoring, and support
Experience with frontend technologies such as React or Angular is an advantage
Strong interest in AI-driven development, with experience using or evaluating AI-assisted coding, testing, or productivity tools — an advantage
Experience with any cloud provider (AWS is an advantage)
containers/CI/CD/IaC familiarity is a plus
Excellent communication and collaboration skills with the ability to work effectively in cross-functional teams, influence peers, and share knowledge
5+ years of software development experience

Job Responsibility

Lead and own the full development lifecycle of critical platform services—from architecture and coding to testing, deployment, and production monitoring/incident response
Champion technical excellence—coding standards, system design, security, observability and cost awareness—and drive AI integration into engineering practices where it adds value
Collaborate cross-functionally with product managers, engineers, tech leads, and other stakeholders to deliver impactful, end-to-end solutions
Proactively contribute to team and company initiatives, document decisions, share knowledge, and drive ownership beyond core responsibilities

What we offer

Track to success – work in a dynamic organization with ambient and laid-back office atmosphere
Individualized career development, rewards, and recognition
Work-life balance – 25 days paid vacation with add-ons for loyalty, regular team buildings and celebrations in and outside the country
Additional health insurance package
Internal mobility program and refer-a-friend program
Managing a fixed monthly budget for social benefits thru Re:Benefit – a flexible online benefits solution
Food vouchers
E-learning portals and knowledge sharing sessions
Company backed Hackathons, Tech conferences, workshops events, etc
Stocked kitchen and bar

Fulltime

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Senior Full-Stack Engineer - Java & React

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