CrawlJobs Logo

Full-Stack JavaScript Developer

ascendixtech.com Logo

Ascendix Tech

Location Icon

Location:
Poland

Category Icon
Category:
IT - Software Development

Job Type Icon

Contract Type:
B2B

Salary Icon

Salary:

Not provided
Save Job
Save Icon
Apply Position

Job Description:

We are looking for a Full-Stack JavaScript Developer (Node.js + Vue.js) to join a data-intensive real estate/proptech project. You’ll work closely with solution architects and data engineers to build an MVP around Snowflake-centric analytics, Chrome extension–based data collection, and AI-assisted workflows.

Job Responsibility:

  • Work as a full-stack engineer, owning features from API to UI: Develop and maintain Node.js backend services for data ingestion, processing, and application logic
  • Implement Vue.js frontend components and pages (forms, tables, filters, dashboards)
  • Collaborate with solution architects and data engineers to: Consume and expose data from Snowflake and other data sources
  • Align on data models and contracts between the application and the data warehouse
  • Integrate with: Chrome extension–based data capture flows
  • External data providers and internal APIs
  • Ensure code quality: Write clean, testable, maintainable code in both the back end and the front end
  • Participate in code reviews, refactoring, and technical design discussions
  • Contribute to architecture and technical decisions for the MVP and further phases
  • Collaborate with PM/BA and client stakeholders, clarify requirements, and propose implementation options
  • Help improve DevOps and delivery practices (logging, monitoring, basic CI/CD improvements) within the scope of your work
  • Continuously learn and adopt best practices around data-intensive systems and AI-assisted development

Requirements:

  • 4+ years of commercial experience with JavaScript/TypeScript
  • 3+ years of commercial experience with Node.js on the back end
  • Experience building and maintaining REST/JSON APIs
  • Solid understanding of authentication/authorization, error handling, and logging
  • 2+ years of commercial experience with a modern front-end framework
  • Vue.js is preferred (React experience acceptable, with readiness to work in Vue)
  • Experience building SPA dashboards, forms, data grids, and filters
  • Experience working as a true full-stack developer (same engineer owning both backend and frontend features end-to-end)
  • Strong knowledge of SQL and experience integrating applications with analytical/OLAP stores (Snowflake, Redshift, BigQuery, or similar)
  • Experience integrating with external APIs and third-party services
  • Good understanding of asynchronous programming, promises, and event-driven architectures
  • Practical experience with Git and common branching/code review workflows (PRs, code reviews)
  • Experience with unit/integration testing for back-end and/or front-end
  • Ability to collaborate with architects and data engineers (understanding of data models, ETL outputs, contracts)
  • Experience with AI / LLM integrations (OpenAI, Claude, etc.) from Node.js
  • Good communication skills
  • ability to explain technical decisions to non-technical stakeholders
  • English: Intermediate+ (able to participate in daily stand-ups, grooming sessions, and client calls)

Nice to have:

  • Experience with Python for data-related tasks
  • Simple ETL scripts, data validation, or integration with data processing services
  • Experience with data engineering / analytics stacks, e.g.: Snowflake, Keboola, dbt, Airflow or similar tools
  • Experience building or integrating with Chrome extensions (content scripts, background scripts, messaging)
  • Knowledge of Docker and container-based deployment
  • Familiarity with cloud platforms (AWS / Azure) and managed databases
  • Experience with CI/CD pipelines (GitHub Actions, Azure DevOps, GitLab CI or similar)
  • Knowledge of real estate / financial / valuation domains
  • Experience with performance optimization for data-heavy UIs and APIs
What we offer:
  • 20 paid vacation
  • 5 paid sickness
  • B2B and remote cooperation
  • Career development and professional growth
  • Technical performance reviews and 360 Evaluation
  • Collaboration with a personal Direct Manager, Technical leads, and mentors
  • Udemy and Pluralsight subscription
  • Internal knowledge-sharing opportunities
  • Online and offline events & team-buildings
  • Friendly and supportive atmosphere
  • Open management

Additional Information:

Job Posted:
December 06, 2025

Employment Type:
Fulltime
Work Type:
Remote work
Icon
Ascendix Tech - All Job Offers
Job Link Share:
Copy Link Icon
Facebook Icon Twitter Icon LinkedIn Icon

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

Briefcase Icon

Similar Jobs for Full-Stack JavaScript Developer

New

Web Developer - Full-Stack

Our client, a leading entertainment group, are looking for a full-stack Web Deve...
Location
Location
United Kingdom , London
Salary
Salary:
50000.00 GBP / Year
blu-digital.co.uk Logo
Blu Digital
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Experience with front and back-end tech stacks including Ruby, React, HTML, JSS and Javascript
  • Worked with Agile methodologies
  • Working knowledge of building web apps
What we offer
What we offer
  • benefits
  • Fulltime
Read More
Arrow Right

Full Stack Developer

The Software Developer must be able to work with key business stakeholders and I...
Location
Location
India , Bangalore
Salary
Salary:
Not provided
atsautomation.com Logo
ATS Automation Tooling Systems Inc.
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • University degree or college diploma in an IT Software Development discipline
  • 2+ years of Full-stack Software Development experience with Python, Angular
  • MuleSoft experience is an asset
  • Working in Azure Stack is an asset
  • Relevant product & technology certifications or proven experience
  • Proven ability of tackling end-to-end challenging projects
  • Experience in full software development lifecycle from design to deployment
  • Experience using SCRUM or other Agile methodologies
  • Proven Experience with python development, Java, JavaScript, JQuery and HTML, CSS, Angular, JMS
  • Strong experience working with ESB platform like MuleSoft Anypoint and Enterprise Integrations (an asset)
Job Responsibility
Job Responsibility
  • Collaborate with Digital Supply Chain team to develop technical specifications and test plans
  • Developing existing programs by analyzing and identifying areas for modification
  • Maintaining systems by monitoring and correcting software defects
  • Consulting clients and colleagues concerning the maintenance and performance of software systems with a view to writing or modifying current operating systems
  • Determines operational feasibility by evaluating analysis, problem definition, requirements, solution development, and proposed solutions
  • Documents and demonstrates solutions by developing documentation, flowcharts, layouts, diagrams, charts, code comments and clear code
  • Prepares and installs solutions by determining and designing system specifications, standards, and programming
  • Improves operations by conducting systems analysis
  • recommending changes in policies and procedures
  • Obtains and licenses software by obtaining required information from vendors
  • Fulltime
Read More
Arrow Right

Full-stack .NET Developer

We’re looking for a Freelance .NET Full Stack Developer (Medior) to join one of ...
Location
Location
Belgium , Brussels
Salary
Salary:
Not provided
apollo-solutions.com Logo
Apollo Solutions
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 3+ years’ hands-on experience with .NET 8 (backend focus)
  • 3+ years’ hands-on experience with React + JavaScript
  • 3+ years’ hands-on experience with SQL Server & MongoDB
  • 3+ years’ hands-on experience with RabbitMQ
  • Strong communication, accountability, and teamwork skills
  • Proficiency in French (with Flemish understanding) or Flemish (with French understanding), plus English
Job Responsibility
Job Responsibility
  • Develop and maintain full stack applications using .NET 8, React, SQL Server, MongoDB and related tools
  • Deliver clean, maintainable code aligned with development standards
  • Collaborate closely with the teams and contingent workers to build scalable, reliable systems
  • Contribute to solutions that support Belgium’s energy transition and grid reliability
What we offer
What we offer
  • Occasional travel to Germany (all costs covered)
  • Flexible hybrid working model with a strong focus on well-being at work
Read More
Arrow Right

Full-stack developer

We are seeking a motivated and detail-oriented Entry-Level Front-End Engineer wi...
Location
Location
United States , Seattle
Salary
Salary:
40.00 - 45.41 USD / Hour
apexsystems.com Logo
Apex Systems
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Strong problem-solving and analytical skills
  • Effective communication and collaboration abilities
  • Eagerness to learn and grow in a fast-paced environment
  • HTML5
  • CSS3
  • JavaScript / ECMAScript 6
Job Responsibility
Job Responsibility
  • Develop and maintain responsive, accessible, and visually appealing web interfaces using HTML, CSS, JavaScript, and modern frameworks like React or Angular
  • Collaborate with designers, product owners, and backend engineers to translate user needs into functional features
  • Participate in Agile ceremonies including sprint planning, daily stand-ups, and retrospectives
  • Write clean, maintainable, and well-documented code following best practices
  • Conduct unit testing and assist in integration and regression testing
  • Troubleshoot front-end issues and contribute to technical solutions
  • Explore backend technologies and contribute to proof-of-concept projects
  • Document work and communicate progress with team members and stakeholders
What we offer
What we offer
  • medical, dental, vision, life, disability, and other insurance plans
  • ESPP (employee stock purchase program)
  • 401K program with company match after 12 months
  • HSA (Health Savings Account on the HDHP plan)
  • SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions
  • corporate discount savings program
  • on-demand training program
  • access to certification prep and a library of technical and leadership courses/books/seminars after 6+ months
  • certification discounts
  • Fulltime
Read More
Arrow Right

Full-stack Web Developer

We’re looking for a full-stack developer who is a savvy back-end developer and w...
Location
Location
United States
Salary
Salary:
Not provided
zionandzion.com Logo
Zion & Zion
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Minimum of 4-8 year’s experience with PHP
  • PHP-based MVC framework such as Laravel, Drupal, Code Igniter, Symfony, etc
  • Concrete understanding of OOP and design patterns
  • Relational database concepts for MySQL or NoSQL
  • Familiarity with WP theme building
  • Solid understanding of REST services
  • Experience working with third-party APIs
  • Experience developing back-end business logic
  • Javascript framework such as Vue, React, Angular etc
  • Front-end framework such as Bootstrap or Foundation
Job Responsibility
Job Responsibility
  • Roles and responsibilities will vary project to project
  • Manage multiple projects simultaneously while keeping them within scope
  • Ability to define project requirements and scope project timelines
  • Interact with technical and non-technical team members and clients
  • Fit into our web development team
Read More
Arrow Right

Full-Stack Engineer (Data)

We are seeking a motivated and talented Full-Stack Engineer with a strong backgr...
Location
Location
United Kingdom
Salary
Salary:
Not provided
spectrum.life Logo
Spectrum Life
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven experience as a Full-Stack Engineer, with a strong portfolio of backend-focused or AI-driven projects
  • Expert proficiency in TypeScript and Node.js, with a deep understanding of modern JavaScript (ES6+), asynchronous programming patterns, and building scalable backend APIs and services
  • Extensive, hands-on experience architecting and building solutions on the AWS ecosystem. This includes core serverless services (Lambda, API Gateway, S3, EventBridge), databases (RDS, DynamoDB), security (IAM), and infrastructure as code tools (AWS CDK, CloudFormation, or Terraform)
  • Strong experience in database design and management, with proficiency in both relational (e.g., PostgreSQL) and NoSQL databases. You should be comfortable with schema design, query optimization, and data modeling
  • A solid understanding of Generative AI concepts and practical experience working with LLMs
  • Comfortable with the principles of LLM design, including prompt engineering and an understanding of model evaluation techniques
  • A solid understanding of the full software development lifecycle, including testing, monitoring, and deployment
Job Responsibility
Job Responsibility
  • Architectural Ownership & Design: Lead the technical design and architectural decisions for our core AI product. You will take ownership of the entire LLM lifecycle, from model selection and evaluation to deployment and monitoring, ensuring a clear and scalable design
  • LLM & Backend Engineering: Develop clean, secure, and performant serverless backend services using AWS Lambda and the wider AWS ecosystem
  • Design, build, and maintain the scaffolding for invoking Large Language Models (LLMs) via services like AWS Bedrock
  • Compare and evaluate different LLMs to determine the best fit for our use cases, establishing clear metrics and evaluation frameworks
  • Implement and manage robust data processing and storage solutions to support our AI features
  • Infrastructure & Best Practices: Design and deploy cloud infrastructure using modern best practices (e.g., Infrastructure as Code)
  • Implement comprehensive testing, robust exception handling, and application monitoring to ensure the high availability and reliability of our AI services
  • Take charge of your local development environment and see features through to production, collaborating with the wider team to ensure seamless product integration
  • Champion and maintain high standards for code quality, scalability, and maintainability
What we offer
What we offer
  • Full time permanent contract
  • Competitive salary (Dependent on experience)
  • In-office, remote or hybrid working options
  • 25 days annual leave
  • 24/7 EAP and a wide range of health and wellbeing supports
  • Extensive list of employee perks and benefits
  • Fulltime
Read More
Arrow Right

Full-Stack Engineer

We are seeking a motivated and talented Full-Stack Engineer to help build the fo...
Location
Location
United Kingdom; Ireland
Salary
Salary:
Not provided
spectrum.life Logo
Spectrum Life
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven experience as a Full-Stack Engineer, with a strong portfolio of projects
  • Proficiency in JavaScript and/or TypeScript
  • Solid experience with React, including creating reusable components, managing application state, and adhering to modern coding practices
  • Experience building data-rich frontends and working with data visualization libraries
  • Demonstrable experience in backend development, including designing and building APIs
  • Hands-on experience with the AWS ecosystem (e.g., Lambda, API Gateway, S3, EventBridge)
  • Strong knowledge of database design and management, specifically with PostgreSQL
  • A solid understanding of the full software development lifecycle, including testing, monitoring, and deployment.
Job Responsibility
Job Responsibility
  • Architect, build, and deploy a complete solution that includes an event-driven AWS backend, a resilient PostgreSQL database, and a user-facing React application for data visualization
  • Develop clean, secure, and performant serverless backend services using the AWS ecosystem
  • Design and implement scalable APIs that will serve as the backbone for our applications
  • Create and maintain efficient and scalable database schemas in PostgreSQL
  • Work with our event-driven architecture, ensuring data flows reliably from source to destination
  • Develop and deploy a responsive and intuitive React application using modern JavaScript/TypeScript and best practices
  • Build reusable, high-quality components for data dashboards and reporting
  • Integrate with data visualization libraries (e.g., D3.js, Recharts, Chart.js) to create compelling and easy-to-understand reports
  • Take charge of your local development environment and see features through to production
  • Implement comprehensive testing, robust exception handling, and application monitoring to ensure high availability and minimal downtime
What we offer
What we offer
  • Full-time permanent contract
  • Competitive salary (Dependent on experience)
  • Remote working options
  • 25 days of annual leave
  • 24/7 EAP and a wide range of health and wellbeing supports
  • Extensive list of employee perks and benefits
  • Fulltime
Read More
Arrow Right

Full Stack Javascript Software Engineer

We are seeking a talented Full Stack Software Engineer with expertise in the MER...
Location
Location
United States , Salt Lake City
Salary
Salary:
Not provided
stgconsulting.com Logo
Software Technology Group
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's degree in Computer Science, Software Engineering, or related field
  • Expertise in MERN stack or MEAN stack for building scalable full-stack applications
  • Strong understanding of TypeScript for type-safe JavaScript development
  • Expertise in building REST APIs and familiarity with GraphQL for modern API design
  • Comfortable working with microservices architecture and modern design patterns
  • Experience with modern CI/CD pipelines and deployment automation best practices (GitLab CI, Jenkins, GitHub Actions, etc.)
  • Familiarity with Git Version Control and Platforms like Github, Gitlab and Bitbucket
  • Experience with task management, issue tracking, and backlog grooming in Jira or similar tools
  • Basic cloud knowledge (AWS, Azure, GCP), including core services and application deployment, monitoring, and maintenance
  • Clear written and verbal communication with technical and non-technical stakeholders
Job Responsibility
Job Responsibility
  • Design and develop scalable, high-performance full-stack applications using the MERN (MongoDB, Express, React, Node) or MEAN (MongoDB, Express, Angular, Node) stack
  • Build and maintain robust REST APIs and work with GraphQL for advanced API design
  • Architect and implement solutions using modern microservices design patterns
  • Develop and manage SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, DynamoDB) databases for data-driven applications
  • Collaborate with cross-functional teams to design and implement features that meet client requirements
  • Ensure application quality and reliability through comprehensive testing using frameworks like Jest, Jasmine, Mocha, or Cypress
  • Optimize application performance and scalability in cloud environments like AWS, Azure, or GCP
  • Participate in code reviews and contribute to a high-quality codebase by adhering to industry standards and best practices
What we offer
What we offer
  • Career Development Plans
  • Certifications
  • Mentorship Programs
  • Ongoing training
  • Work-life balance
  • Continuous learning
  • Rewarding excellence
  • Fulltime
Read More
Arrow Right
Welcome to CrawlJobs.com –
Your Global Job Discovery Platform
At CrawlJobs.com, we simplify finding your next career opportunity by bringing job listings directly to you from all corners of the web. Using cutting-edge AI and web-crawling technologies, we gather and curate job offers from various sources across the globe, ensuring you have access to the most up-to-date job listings in one place.
Jobs by Category
Art and Entertainment Jobs Banking Jobs Call Center Jobs Construction Jobs Consulting Jobs Customer Service Jobs Education Jobs Energy Jobs Finance Jobs Gastronomy Jobs Health and Beauty Jobs Hospitality and Tourism Jobs Human Resources Jobs Insurance Jobs IT - Administration Jobs IT - Software Development Jobs Legal Jobs Logistics Jobs Manufacturing Jobs Marketing, Digital Marketing, SEO, SEM Jobs Media Jobs Nursing Jobs Office Administration Jobs Pharmacy Jobs Physical Work Jobs Public Relations Jobs Public Sector Jobs Purchasing Jobs Quality Control Jobs Real Estate Jobs Research and Development Jobs Sales Jobs
Job Positions Jobs by Country
United States Jobs United Kingdom Jobs India Jobs Canada Jobs Australia Jobs Poland Jobs Ireland Jobs Germany Jobs
Company
Blog About Us Contact
Follow Us
Facebook
X (Twitter)
LinkedIn
Instagram
© 2025 CrawlJobs Ltd. All Rights Reserved
Terms & Conditions Privacy Policy