CrawlJobs Logo

Senior FullStack Developer

DevSavant Inc.

Location Icon

Location:

Category Icon

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

Not provided

Job Description:

We are seeking a Senior Full Stack Developer with deep expertise in modern web application development, strong architectural design capabilities, and hands-on experience across both backend and frontend technologies. This role is ideal for someone who can independently own complex technical initiatives, collaborate effectively with cross-functional partners, and deliver scalable, secure, and high-performing applications.

Job Responsibility:

  • Design and plan application and system architecture to ensure scalability and maintainability
  • Develop and maintain backend services using Django (Python)
  • Build responsive, user-friendly interfaces using React and Mantine UI
  • Integrate applications with PostgreSQL databases, APIs, and backend services
  • Build and deploy applications using Docker and maintain consistent dev/prod environments
  • Implement and maintain CI/CD workflows
  • Manage and monitor cloud infrastructure on AWS (VPC, EC2, S3, RDS, CloudFront, etc.)
  • Maintain and administer Linux and Windows servers, including ColdFusion servers when required
  • Perform system maintenance, file management (including BTRFS), and feature migration from ColdFusion to Django
  • Support and enhance legacy systems, ensuring reliability and integration with modern applications
  • Configure and optimize load balancers to ensure availability and performance
  • Conduct performance tuning across applications and infrastructure
  • Implement security best practices, access controls, encryption, and perform regular security audits
  • Work closely with product, design, and stakeholder teams to define requirements and deliver aligned solutions
  • Provide technical leadership and mentorship to junior developers
  • Maintain clear documentation of code, processes, and infrastructure

Requirements:

  • 7+ years of software development experience
  • Proficiency in Python and JavaScript (Django and React)
  • Strong understanding of front-end technologies (HTML, CSS, JavaScript)
  • Experience working with RESTful APIs and web services
  • Familiarity with relational or NoSQL databases (PostgreSQL, MySQL, MongoDB)
  • Proficiency with Git for version control
  • Strong problem-solving skills and attention to detail
  • Excellent communication and teamwork abilities
  • Experience leading engineering initiatives and working closely with product teams
  • English level: B2 (spoken and written)

Nice to have:

  • Experience with AI and interaction with LLMs, specifically AWS Bedrock model integrations
  • Experience with Apache Spark, specifically PySpark for data processing
  • Experience with database query optimization techniques and indexing strategies
  • Experience with Terraform for infrastructure as code
  • Experience with Elasticsearch for search and analytics

Additional Information:

Job Posted:
February 20, 2026

Employment Type:
Fulltime
Job Link Share:

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Senior FullStack Developer

Senior Fullstack Outsystems Developer

The full stack developer is primarily responsible for the technical development ...
Location
Location
Portugal , Lisbon
Salary
Salary:
Not provided
https://www.bridge351.com Logo
Bridge351
Expiration Date
Until further notice
Flip Icon
Requirements
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
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
What we offer
  • Mind-blowing workplace culture
  • 100% Remote opportunities
  • International Career
  • Health and Life Insurance
  • Tech Visa Company
  • Fulltime
Read More
Arrow Right

Senior Fullstack Developer

As a Senior Fullstack Developer, you will be a key contributor to our core produ...
Location
Location
Cyprus
Salary
Salary:
4900.00 - 6100.00 EUR / Month
fundraiseup.com Logo
Fundraise Up
Expiration Date
Until further notice
Flip Icon
Requirements
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
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
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
Read More
Arrow Right

Senior Fullstack Developer

As a Senior Fullstack Developer, you will be a key contributor to our core produ...
Location
Location
Armenia
Salary
Salary:
Not provided
fundraiseup.com Logo
Fundraise Up
Expiration Date
Until further notice
Flip Icon
Requirements
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
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
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
Read More
Arrow Right

Senior Fullstack Developer

As a Senior Fullstack Developer, you will be a key contributor to our core produ...
Location
Location
Turkey
Salary
Salary:
Not provided
fundraiseup.com Logo
Fundraise Up
Expiration Date
Until further notice
Flip Icon
Requirements
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
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
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
Read More
Arrow Right

Senior Fullstack Developer

As a Senior Fullstack Developer, you will be a key contributor to our core produ...
Location
Location
Portugal
Salary
Salary:
4650.00 - 5800.00 EUR / Month
fundraiseup.com Logo
Fundraise Up
Expiration Date
Until further notice
Flip Icon
Requirements
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
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
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
Read More
Arrow Right

Senior Fullstack Developer

As a Senior Fullstack Developer, you will be a key contributor to our core produ...
Location
Location
Spain
Salary
Salary:
4900.00 - 6100.00 EUR / Month
fundraiseup.com Logo
Fundraise Up
Expiration Date
Until further notice
Flip Icon
Requirements
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
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
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
Read More
Arrow Right

Senior Fullstack Developer

As a Senior Fullstack Developer, you will be a key contributor to our core produ...
Location
Location
Georgia
Salary
Salary:
10500.00 - 13800.00 GEL / Month
fundraiseup.com Logo
Fundraise Up
Expiration Date
Until further notice
Flip Icon
Requirements
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
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
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
Read More
Arrow Right

Senior Fullstack Developer

Take your career to the next level with Amaris Consulting as a Senior Fullstack ...
Location
Location
Spain , Barcelona
Salary
Salary:
Not provided
amaris.com Logo
Amaris Consulting
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Minimum of 4 years of experience in fullstack development using Java and React.js
  • Proven experience with RESTful APIs and microservices architecture
  • Strong commitment to innovation and a desire to learn and grow within the role
  • High proficiency in English (Spanish is not required)
Job Responsibility
Job Responsibility
  • Serve as the lead expert in fullstack development, driving the implementation of new functionalities and identifying improvements in our current applications
  • Collaborate with cross-functional teams to diagnose issues and propose enhancements related to software development workflows
  • Develop and maintain scalable applications using Java for backend services and React.js for frontend interfaces
  • Ensure best practices in coding, testing, and deployment are followed
  • Stay updated on industry trends and continuously seek opportunities for innovation and learning
What we offer
What we offer
  • Rapid growth through a personalized career path and salary evaluation
  • Enhance your skills through our Technology Academy catalog, Udemy platform, language classes, webinars, and workshops
  • Take control of your training with an annual personal budget and company-paid certifications
  • Enjoy flexible policies, remote work options, and excellent social benefits like transportation and restaurant tickets, childcare support, and private health insurance
  • Benefit from our WeCare program, which provides support to employees in critical situations
  • Fulltime
Read More
Arrow Right