HubMub
-
HITHUNTER

Sr. FullStack Java Engineer with good JavaScript knowledge

HITHUNTER
Lithuania · Full-time · Not Applicable
As a senior software engineer, you will join a skilled team of engineers building a unique product for financial data reporting. Green field project with a mixed tech stack and microservice architecture. You will play a role in developing using Java, Spring, Spring Boot, PostgreSQL, JavaScript, and TypeScript, and working with Node.js, React, Redux, and Saga.

Your main focus would be working in the team that works on a very specific component in the application. You should have an exceptionally strong understanding of JavaScript (structures, performance, etc.). You should have exceptional skills with React + Redux, NodeJS, Typescript, and Redux Saga. Strong skills with PostgreSQL. Additionally, you should have strong JAVA, Spring, and Spring Boot knowledge. Have experience working with large-scale cloud-based applications (Azure).

Key Responsibilities – Java/JS Full-stack Developer

  • Software Development - Design, develop, and maintain scalable full-stack applications using Java (Spring Boot) and React.js
  • Code Quality & PR Review - Conduct thorough peer reviews of pull requests to ensure code quality, maintainability, and adherence to best practices
  • Scrum Ceremonies - Actively participate in Agile ceremonies, including daily standups, sprint planning, retrospectives, and backlog grooming
  • Mentorship & Collaboration - Mentor junior developers, share knowledge across the team, and foster a culture of continuous learning
  • Frontend Engineering - Build responsive and user-friendly interfaces using React, Redux, and modern UI libraries
  • Backend Engineering - Develop robust RESTful APIs and microservices using Java, ensuring performance, security, and scalability
  • Database Design & Optimization - Work with SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Cassandra) databases to design schemas, write efficient queries, and optimize performance
  • Testing & Automation - Implement unit, integration, and end-to-end tests using tools like JUnit, Mockito, Cypress, or Selenium
  • DevOps & CI/CD - Collaborate on CI/CD pipelines, containerization (Docker), and deployment strategies using tools like Jenkins or GitHub Actions
  • Documentation & Reporting - Maintain clear technical documentation and provide regular updates on progress and blockers


Requirements

  • Bachelor's or Master's of Science
  • 4-5 years of experience in software development
  • JavaScript - Deep understanding of core JS concepts, including closures, async programming, and ES6+ features
  • React + Redux + Redux Saga + TypeScript - Building scalable, maintainable, and high-performance SPAs with advanced state management and typed components
  • Advanced HTML & CSS (huge plus) - Semantic markup, accessibility, responsive design, and cross-browser compatibility
  • ECMAScript 6+ (Expert level) - Proficient in modern JS syntax and features such as arrow functions, destructuring, modules, promises, and async/await
  • Node.js - Building RESTful APIs, microservices, and real-time applications with Express or similar frameworks
  • Java, Spring, Spring Boot - Developing robust backend services, integrating with databases, and implementing business logic with enterprise-grade frameworks
  • PostgreSQL - Schema design, query optimization, and transactional integrity
  • Redis - In-memory data storage for caching, session management, and pub/sub messaging
  • Application monitoring using tools like Prometheus, Grafana, ELK Stack, or New Relic to ensure uptime, performance, and quick issue resolution
  • Experienced in Scrum of Scrums, sprint planning, retrospectives, and backlog refinement
  • Comfortable working in cross-functional teams and managing dependencies across squads
  • Strong communication skills for gathering requirements, presenting solutions, and managing expectations
  • Experience in stakeholder engagement, demo sessions, and feedback incorporation
  • Flexibility to work on backend or frontend


What We Offer

  • Opportunity to be part of a global organization
  • Encouraging working atmosphere, engaging activities, and extra benefits (e.g., additional medical insurance (covers gym subscription), team events, outreach activities, and others)
  • Hybrid work model with remote work opportunities ( 3/5 days weekly from the office)
  • Open, modern, and ergonomic work environment when working from the office with the multicultural community
  • Opportunity to grow professionally and personally (e.g., Udemy) and continuously develop within the domain
  • The salary range for this position is from 4.485 to 5.950 EURO gross before taxes


We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

gross before taxes.

  • Salary offer for the candidate is determined based on the predefined salary ranges for the position and depends on the level of competence and experience of the candidate

Key Skills

Ranked by relevance

spring boot java typescript postgresql react microservices restful apis javascript responsive cicd artificial intelligence responsive design containerization prometheus cassandra ai tools outreach jenkins grafana storage docker nosql mysql cloud scrum junit css sql elk ai ui
Login to Apply
Posted
Apr 10, 2026
Type
Full-time
Level
Not Applicable
Location
Vilnius
Company
HITHUNTER

Industries

IT Services IT Consulting

Categories

Engineering Information Technology

Related Jobs

3 roles aligned with this opportunity

View all jobs
View Job Details
HITHUNTER
Related

Sr. FullStack Java and JavaScript Engineer

2026-02-06

Full-time
Not Applicable
Lithuania
IT Services
Engineering
View Job Details
HITHUNTER
Related

Java Full Stack Engineer

2026-02-06

Full-time
Not Applicable
Lithuania
IT Services
Engineering
View Job Details
Telia
Related

DevOps Engineer

2026-04-07

Full-time
Not Applicable
Lithuania
Telecommunications
Engineering