Lead Senior Software Engineer – JavaScript, TypeScript, Node.js, React_based in Kaunas (Lithuanian citizens only) in Kaunas at WISE INTEGRATION

Hitcontract is looking for a Lead Senior Software Engineer for an international client – a global technology and business consulting organization delivering digital solutions and large-scale software projects for clients worldwide.

The company operates in a multicultural, international environment and works with modern technologies to develop and maintain complex enterprise-level applications.

We are looking for an experienced Lead Senior Software Engineer to join a team working across the full software development lifecycle. The role focuses on both front-end and back-end development, with JavaScript/TypeScript, Node.js, React, GraphQL, REST APIs, databases, and messaging systems at its core.

The successful candidate will also play a key role in technical leadership, contributing to architecture and development practices while collaborating closely with engineers, product managers, stakeholders, and other teams.

• Participate in and lead Agile ceremonies, including sprint planning, stand-ups, and retrospectives.
• Collaborate with team members and stakeholders to gather and understand requirements for new features and enhancements.
• Develop and maintain front-end web components using React, TypeScript, HTML, and CSS.
• Design and develop software solutions using Node.js, GraphQL, and JavaScript frameworks and middleware.
• Build and consume RESTful web services and APIs.
• Apply software architecture and design principles, including DDD, CQRS, and Clean Architecture.
• Write unit and integration tests to ensure code quality, reliability, and maintainability.
• Participate in code reviews and provide constructive technical feedback.
• Troubleshoot, debug, and resolve complex technical issues.
• Contribute to the continuous improvement of software development processes, tools, and practices.
• Communicate effectively with stakeholders and team members to ensure project objectives are achieved.
• Stay up to date with emerging technologies and industry trends and identify opportunities to improve development practices.
• Provide technical leadership and support to other team members.

• 6+ years of professional experience with JavaScript, TypeScript, Node.js, React, HTML/CSS, and SQL.
• Strong experience in both front-end and back-end development.
• Proven team leadership experience, either in a technical leadership or managerial capacity.
• Strong understanding and practical experience with:
  • Node.js
  • React
  • TypeScript / JavaScript
  • SQL
  • GraphQL
  • REST APIs
  • CI/CD pipelines
  • Message brokers
  • ORM
• Strong knowledge of Domain-Driven Design (DDD), CQRS, and Clean Architecture.
• Experience working in Agile development environments.
• Excellent communication and collaboration skills.
• Good command of English.

• Knowledge of Vanilla JavaScript.
• Understanding of V8.
• Experience with WebAssembly.
• Experience working with complex enterprise applications and large-scale software systems.
• Experience mentoring and supporting other engineers.

• The opportunity to join an international technology and business consulting organization working on complex, large-scale digital solutions.
• An encouraging and collaborative working environment with a multicultural community.
• Additional benefits, including private medical insurance with gym coverage, team events, outreach activities, and other employee benefits.
• Hybrid working model with the opportunity to work remotely and from the office, with approximately 3 days per week in the office.
• An open, modern, and ergonomic office environment.
• Opportunities for professional and personal development, including access to learning platforms such as Udemy.
• The opportunity to continuously develop your technical expertise and take on technical leadership responsibilities.

€6,000–€7,300 gross per month, before taxes.