Europe Custom Tour Specialists
Senior Full-Stack JavaScript Developer
Location
Poland
Posted
104 days ago
Salary
0
Seniority
Senior
Job Description
Senior Full-Stack JavaScript Developer
JayWay Travel
• Refactor and modernize a complex legacy codebase without losing functionality • Optimize MongoDB queries, indexing, and schema design for speed and reliability • Replace outdated libraries and improve CI/CD pipelines • Collaborate on new features while stabilizing old ones • Produce clear documentation and hand over knowledge across the team • Mentor junior engineers and influence hiring and technical standards
Job Requirements
- 5+ years of hands-on experience in full-stack JavaScript/TypeScript
- Comfortable untangling legacy systems and making smart architectural choices
- Fluent in English
- Excited by technical ownership, continuous improvement, and mentoring peers
Benefits
- Health programs
- Ergonomic support
- Performance-based rewards
- Bonuses
- Company-wide acknowledgment
- Training
- Certifications
- Mentorship
- Exposure to cutting-edge tech
- Home office setup
Related Guides
Related Job Pages
More Backend Engineer Jobs
• Develop new features using .Net Core and Azure • Maintain existing features (including bug fixes) • Maintain assigned PBIs and tasks • Deploy code to environment and follow up on delivery with SQA • Estimate tasks and PBIs • Attend scrum ceremonies (Daily, Backlog refinement, Planning) • Follow up on requirements with Scrum master or development team • Research and create POC for new implementations
Company Description Active Theory is based in Los Angeles and Amsterdam with a globally distributed team. We strive to make some of the best digital experiences on the web, and we're growing. Our Dreamwave product creates bespoke virtual events connecting people online. Recent Dreamwave events over the last year have included Sundance Film Festival, a virtual music festival for Porter Robinson, and high-profile tech conference Inbound. Job Description Active Theory is seeking a backend developer and DevOps hybrid to help build out the underlying tech infrastructure behind our Dreamwave events platform. This person will work on: Backend development primarily in Node.js working closely with GCP and Firebase services - Cloud Functions, Cloud Firestore, Firebase Realtime Database. Architect, prototype, scope and develop backend components for each project. Requirements can vary significantly with each project, particular creative execution, and technical requirements. Qualifications 3 years minimum developing secure, scalable, production ready web applications in Node.js. Experience with Google Cloud Platform and services, including Firebase - Compute Engine, Cloud Firestore, Firebase Realtime Database, Cloud Functions. Familiar with multiplayer and asynchronous concepts, state management and data flows. Experience designing and implementing database schemas for maintainability, performance, and scale. Ability to manage your time and communicate effectively while working remotely. Ability to work independently and carry a project. Additional Information All your information will be kept confidential according to EEO guidelines.
Java developer - NoSql & Kafka
Ab Ovo inc.Etymology: Latin, literally, from the egg : from the beginning Ab Ovo provides integrated technology and operations-based solutions. We are headquartered in Santa Clara, CA. We provide solutions to clients' business challenges by leveraging our technology and process capabilities, backed by an understanding of customer domain and industry. Ab Ovo delivers technology services, offers productized applications and platforms that accelerates growth for Global 1000 companies by solving complex business challenges with speed, innovation, and agility. Ab Ovo specializes in e-Commerce, Mobility, Cloud Enablement, IoT, Digital Transformation, Big Data, Business Intelligence, Data Analytics, Automation / Testing, Infrastructure, EAI, CRM and Enterprise Application Development / Integration.
Company Description We are a direct supplier to several F500 companies and are looking to fill multiple positions with our customers at this time. Job Description We are looking for Java developer with hands-on experience on building n-tier applications using RESTful Services, Java/J2EE, NoSql and related technologies. Qualifications Must have skills: 5+ years of experience programming in Java/J2EE, REST Services, and related technologies Hands on Experience with Spring, CXF. Spring Boot NoSQL database technologies like Cosmos or Cassandra or MongoDB Kafka Apache Tomcat or similar SaaS application development UNIX shell and scripting Nice to have skills: Cryptography/ key management OAuth Additional Information All your information will be kept confidential according to EEO guidelines.
Python Developer
Sajix IncSajix Corporation recognized the need of integrated healthcare software system including Electronic Medical Record as well as Practice Management and we are in a position to deliver the need of healthcare through our innovative software platform. Sajix Inc (CCHIT certified), a California based Company is provider of web based integrated healthcare platform ("iHelix") offers (1) Practice Management (2) Electronic Medical record (3) Revenue cycle management (4) Other front office and back office process automation (5) Hospital Information System. We offer both license and Software-as-a-service model based on the customer choice. Our implementation time and cost is significantly less as our platform is highly configurable and can adapt to any kind of healthcare specialty delivery model. iHelix on Demand: iHelix relieves the clients from burden of hardware and software replacement or up gradation costs. Customers can just a pay per user fee and start using iHelix from our own high end secure servers leaving the maintenance and upgrades at Sajix. iHelix on Premises: Sajix implements iHelix at the customer data center offering the flexibility to run it on any relational database and giving full control of data to customers and to generate additional reports. Sajix also provides iHelix license to the customers, user support and maintenance. iHelix lite: iHelix lite is designed in accordance to the customers who works offline. iHelix lite provides solution for the mobile healthcare. Customers can save their daily work on their system and can later save it to the central server. For more information contact [email protected] at 925-218-7370 or visit our website at http://www.sajix.com/.
Company Description Sajix Inc. is a global health-tech company headquartered in Pleasanton, California, focused on transforming healthcare delivery through advanced digital solutions. Since its founding in 2006, Sajix has specialized in developing integrated healthcare information systems that streamline clinical, financial, and administrative operations for healthcare organizations around the world. With operations in the United States, United Kingdom, Singapore, and India, Sajix serves clients across North America, Europe, Asia, and Africa. Its flagship platform, iHelix , is a modular, scalable solution designed for use in diverse healthcare settings—from single-doctor practices to large hospital networks. Sajix offers a comprehensive suite of digital healthcare solutions, including: iHelix Lifeeazy AI-based Revenue Cycle Management – optimizing financial workflows through automation All products are built with global standards in mind, supporting multiple languages and currencies, and comply with international healthcare regulations such as CCR and CCD. Through strategic partnerships and a commitment to innovation, Sajix continues to lead the industry in delivering intelligent, interoperable, and patient-centric healthcare solutions. Website: www.sajix.com Job Description About the Role: As a Python Developer Trainee at Sajix, you will work with our engineering team to develop backend services, automation scripts, and data processing modules that support our health-tech platforms. Key Responsibilities: Assist in writing clean and efficient Python code for backend services. Collaborate with data and DevOps teams to integrate applications. Write unit tests and support debugging and troubleshooting. Learn to use frameworks such as Django or FastAPI. Qualifications Requirements: Bachelor’s in Computer Science or related field. Proficiency in Python and knowledge of OOP principles. Familiarity with Git and REST APIs. Additional Information These trainee roles are offered in collaboration with Sajix’s __init__py program—a structured, hands-on learning initiative aimed at nurturing the next generation of full-stack developers and technology professionals. The program offers tiered training tracks. Participants gain real-world experience through live projects, personalized mentorship, and exposure to industry-relevant tools and practices. This collaboration ensures that trainees are well-equipped with practical skills and knowledge to excel in their roles. For more information about the __init__py program, visit initpy.sajix.com.




