Senior Fullstack Developer Jobs

New

Senior Fullstack Developer

As a Senior Fullstack Developer, you will be a key contributor to our core produ...

Location

Armenia

Salary:

Not provided

Fundraise Up

Expiration Date

Until further notice

Requirements

7+ years of professional fullstack development experience
Deep understanding of modern JavaScript (event loop, closures, promises, prototypes)
Expert-level proficiency with React and its ecosystem (familiarity with Vue is a plus)
Strong backend expertise with Node.js (experience with Koa or NestJS is highly preferred)
Experience with Webpack configuration, performance optimization, and profiling
A keen eye for detail and a high sense of ownership and accountability for your work

Job Responsibility

Design, build, and maintain resilient frontend and backend features using React and Node.js
Develop our core products, including donation checkouts, embeddable widgets, and donor/partner portals
Architect and develop system components that scale across millions of monthly transactions
Write clean, well-documented, and thoroughly testable code
Drive architecture and technical design discussions to find elegant solutions to complex problems
Mentor peers by conducting thoughtful code reviews and providing constructive feedback
Partner with product managers and designers to clarify requirements and shape the roadmap
Proactively identify and resolve bugs, performance bottlenecks, and optimization opportunities

What we offer

31 days off
100% paid telemedicine plan
Home Office Setup Assistance: the company offers assistance with purchasing furniture (office chair, office desk, monitor) and other items to create a comfortable workspace
English learning courses
Relevant professional education
Gym or swimming pool
Co-working
Remote working
Stock options

Fulltime

New

Senior Fullstack Developer

As a Senior Fullstack Developer, you will be a key contributor to our core produ...

Location

Turkey

Salary:

Not provided

Fundraise Up

Expiration Date

Until further notice

Requirements

7+ years of professional fullstack development experience
Deep understanding of modern JavaScript (event loop, closures, promises, prototypes)
Expert-level proficiency with React and its ecosystem (familiarity with Vue is a plus)
Strong backend expertise with Node.js (experience with Koa or NestJS is highly preferred)
Experience with Webpack configuration, performance optimization, and profiling
A keen eye for detail and a high sense of ownership and accountability for your work

Job Responsibility

Design, build, and maintain resilient frontend and backend features using React and Node.js
Develop our core products, including donation checkouts, embeddable widgets, and donor/partner portals
Architect and develop system components that scale across millions of monthly transactions
Write clean, well-documented, and thoroughly testable code
Drive architecture and technical design discussions to find elegant solutions to complex problems
Mentor peers by conducting thoughtful code reviews and providing constructive feedback
Partner with product managers and designers to clarify requirements and shape the roadmap
Proactively identify and resolve bugs, performance bottlenecks, and optimization opportunities

What we offer

31 days off
100% paid telemedicine plan
Home Office Setup Assistance: the company offers assistance with purchasing furniture (office chair, office desk, monitor) and other items to create a comfortable workspace
English learning courses
Relevant professional education
Gym or swimming pool
Co-working
Remote working
stock options

Fulltime

New

Senior Fullstack Developer

As a Senior Fullstack Developer, you will be a key contributor to our core produ...

Location

Cyprus

Salary:

4900.00 - 6100.00 EUR / Month

Fundraise Up

Expiration Date

Until further notice

Requirements

7+ years of professional fullstack development experience
Deep understanding of modern JavaScript (event loop, closures, promises, prototypes)
Expert-level proficiency with React and its ecosystem (familiarity with Vue is a plus)
Strong backend expertise with Node.js (experience with Koa or NestJS is highly preferred)
Experience with Webpack configuration, performance optimization, and profiling
A keen eye for detail and a high sense of ownership and accountability for your work

Job Responsibility

Design, build, and maintain resilient frontend and backend features using React and Node.js
Develop our core products, including donation checkouts, embeddable widgets, and donor/partner portals
Architect and develop system components that scale across millions of monthly transactions
Write clean, well-documented, and thoroughly testable code
Drive architecture and technical design discussions to find elegant solutions to complex problems
Mentor peers by conducting thoughtful code reviews and providing constructive feedback
Partner with product managers and designers to clarify requirements and shape the roadmap
Proactively identify and resolve bugs, performance bottlenecks, and optimization opportunities

What we offer

31 days off
100% paid telemedicine plan
Home Office Setup Assistance: the company offers assistance with purchasing furniture (office chair, office desk, monitor) and other items to create a comfortable workspace
English learning courses
Relevant professional education
Gym or swimming pool
Co-working
Remote working
stock options

Senior Fullstack Outsystems Developer

The full stack developer is primarily responsible for the technical development ...

Location

Portugal , Lisbon

Salary:

Not provided

Bridge351

Expiration Date

Until further notice

Requirements

Successful experience as a full stack OutSystems developer in a startup environment
Outstanding execution across frontend & backend environments
Highest level of professional and intellectual integrity
Can handle success and failure, positive feedback as well as critiques
80/20, structured self-starter with strong drive
Can perform independently and deliver consistent quality work according to established best practices
Understanding of B2B trade is a plus, of trade credit insurance is a nice to have
Based in Europe timezone

Job Responsibility

Leading the tech build, including APIs / user experience, front and backend systems, data modules / platforms, and overall architecture in close collaboration with the Tech Lead and the Enterprise Architect
Acting as senior advisor to the teams to define the best technologies, tools and architectures for each project and venture
Partner with Product Owners to increase the impact of the ventures
Manage technical benchmarks to elaborate innovative solutions across web & API architectures
Identifying and systematically deploying best practices to ensure sustainable scalability of the applications
Maintenance of applications and related processes - monitoring of daily run, solving and fixing issues, deployment of updates/changes
Execution of Technical tests
Maintenance of all OutSystems environments (DEV, TST, PROD)
Development of changes in applications and related processes for new features and new clients including basic tests and creation of respective documentation and deployment
Perform systematic peer code reviews to ensure a high quality of the deliverables and promote a culture of sharing knowledge within the development team

What we offer

Mind-blowing workplace culture
100% Remote opportunities
International Career
Health and Life Insurance
Tech Visa Company

Fulltime

New

Senior Fullstack Developer

As a Senior Fullstack Developer, you will be a key contributor to our core produ...

Location

Georgia

Salary:

10500.00 - 13800.00 GEL / Month

Fundraise Up

Expiration Date

Until further notice

Requirements

7+ years of professional fullstack development experience
Deep understanding of modern JavaScript (event loop, closures, promises, prototypes)
Expert-level proficiency with React and its ecosystem (familiarity with Vue is a plus)
Strong backend expertise with Node.js (experience with Koa or NestJS is highly preferred)
Experience with Webpack configuration, performance optimization, and profiling
A keen eye for detail and a high sense of ownership and accountability for your work

Job Responsibility

Design, build, and maintain resilient frontend and backend features using React and Node.js
Develop our core products, including donation checkouts, embeddable widgets, and donor/partner portals
Architect and develop system components that scale across millions of monthly transactions
Write clean, well-documented, and thoroughly testable code
Drive architecture and technical design discussions to find elegant solutions to complex problems
Mentor peers by conducting thoughtful code reviews and providing constructive feedback
Partner with product managers and designers to clarify requirements and shape the roadmap
Proactively identify and resolve bugs, performance bottlenecks, and optimization opportunities

What we offer

31 days off
100% paid telemedicine plan
Home Office Setup Assistance: the company offers assistance with purchasing furniture (office chair, office desk, monitor) and other items to create a comfortable workspace
English learning courses
Relevant professional education
Gym or swimming pool
Co-working
Remote working
stock options

Fulltime

New

Senior Fullstack Developer

As a Senior Fullstack Developer, you will be a key contributor to our core produ...

Location

Spain

Salary:

4900.00 - 6100.00 EUR / Month

Fundraise Up

Expiration Date

Until further notice

Requirements

7+ years of professional fullstack development experience
Deep understanding of modern JavaScript (event loop, closures, promises, prototypes)
Expert-level proficiency with React and its ecosystem (familiarity with Vue is a plus)
Strong backend expertise with Node.js (experience with Koa or NestJS is highly preferred)
Experience with Webpack configuration, performance optimization, and profiling
A keen eye for detail and a high sense of ownership and accountability for your work

Job Responsibility

Design, build, and maintain resilient frontend and backend features using React and Node.js
Develop our core products, including donation checkouts, embeddable widgets, and donor/partner portals
Architect and develop system components that scale across millions of monthly transactions
Write clean, well-documented, and thoroughly testable code
Drive architecture and technical design discussions to find elegant solutions to complex problems
Mentor peers by conducting thoughtful code reviews and providing constructive feedback
Partner with product managers and designers to clarify requirements and shape the roadmap
Proactively identify and resolve bugs, performance bottlenecks, and optimization opportunities

What we offer

31 days off
100% paid telemedicine plan
Home Office Setup Assistance: the company offers assistance with purchasing furniture (office chair, office desk, monitor) and other items to create a comfortable workspace
English learning courses
Relevant professional education
Gym or swimming pool
Co-working
Remote working
stock options

Fulltime

New

Intermediate / Senior FullStack Developer – App (TypeScript & Python)

Due to our consistent growth, we are seeking to expand our Data, Software and De...

Location

France , Paris

Salary:

Not provided

Descartes Underwriting

Expiration Date

Until further notice

Requirements

Good knowledge in javascript and python
Experience with Docker
Good knowledge in English and fluency in French
Familiar with production development workflow (code reviews, fast forward git policy, pair coding, SCRUM)
From 4 years of experience
Desire to train junior developers and explain software design and good practices
Desire to keep learning from more experimented developers
Desire to suggest improvements in architecture or features
Ability to understand break epic track in achievable issues
Excellent communication skills, in both formal and informal settings, and in English and French

Job Responsibility

Build interactive web applications
Testing and refactoring code already used in existing project
Introducing object oriented patterns in functional code
Profile and optimizing TypeScript and python codes
Develop, optimize, update and deploy software for portfolio management, in-depth analysis of risk models, interactive forms and data visualization, export of outputs adapted to users, monitoring of contracts and associated data, testing and validation of existing solutions
Maintain the software solution with version management, technical documentation, programming best practices
Support, test and correct the tools of continuous integration and continuous development (CI/CD), data storage, modularization and containerization of IT solutions, connection to external and internal API’s
To participate in assessment and definition of user needs, conversion of technical specification into software development tasks, bug tracking management, software evolution management, choice of technical solutions, discussions with IT partners, improving the skills of technical staff, managing the access and rights of users of internal tools

What we offer

Opportunity to work and learn with teams from the most prestigious schools and research labs in the world
Commitment from Descartes to its staff of continued learning and development
Work in a collaborative & professional environment
Be part of a dynamic international team, passionate about diversity
Join a company with a true purpose
A competitive salary, bonus and benefits
You can benefit from a punctual home office days

Java Fullstack Developer with Reactjs

The Applications Development Intermediate Programmer Analyst is an intermediate ...

Location

India , Chennai

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

2-5 years of relevant experience in the Financial Service industry
Intermediate level experience in Applications Development role
Consistently demonstrates clear and concise written and verbal communication
Demonstrated problem-solving and decision-making skills
Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements
Bachelor's degree/University degree or equivalent experience

Job Responsibility

Utilize knowledge of applications development procedures and concepts to identify and define necessary system enhancements
Consult with users, clients, and other technology groups on issues and recommend programming solutions
Apply fundamental knowledge of programming languages for design specifications
Analyze applications to identify vulnerabilities and security issues
Conduct testing and debugging
Serve as advisor or coach to new or lower level analysts
Identify problems, analyze information, and make evaluative judgements to recommend and implement solutions
Resolve issues by identifying and selecting solutions through acquired technical experience
Operate with limited level of direct supervision
Exercise independence of judgement and autonomy

Fulltime

Senior Fullstack Developer

Fundraise Up

Location:
Portugal

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
December 08, 2025

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Category:IT - Software Development

Contract Type:Not provided

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Job Description:

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Nice to have:

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Job Posted:December 08, 2025

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