Full-stack Engineer

• Design, develop, and maintain full-stack applications using Java and Angular.
• Deliver new features and enhancements for enterprise applications following agile methodologies.
• Develop and integrate RESTful APIs and event-driven solutions using Kafka.
• Design, optimize, and maintain PostgreSQL databases and write PL/SQL where required.
• Collaborate with cross-functional teams to translate business requirements into technical solutions.
• Write clean, maintainable, and well-tested code following engineering best practices.
• Participate in code reviews, technical discussions, and architectural improvements.
• Contribute to CI/CD pipelines and engineering enablement initiatives.
• Support application performance optimization, reliability, and scalability.
• Stay up to date with modern development practices and emerging technologies.

Full Stack Engineer

• Play a key role in the Forms team, influencing product development decisions.
• Build a product that enables merchants to capture, convert, and grow their audience through signup forms, popups, and multi-step flyouts.
• Build the systems behind AI-powered form creation and AI-driven recommendations for merchants.
• Use your technical expertise to solve complex problems.
• Leverage AI to streamline your daily operations.

Senior Software Engineer, Forms Team

• Work on core Linux kernel subsystems — including memory management, scheduling, networking, and filesystems.
• Tweak and tune container isolation mechanisms until they’re practically airtight.
• Help Linux scale harder, faster, stronger.
• Optimize resource usage across thousands of virtual machines and containers.
• Collaborate with upstream maintainers to merge your patches into the kernel.
• Representing Virtuozzo at professional conferences, such as Open Source Summit, FOSDEM, and other Linux Foundation events.

C Developer – Linux Kernel Team

• Develop and evolve customer information management and data aggregation capabilities using data from internal systems and external registries
• Design, implement, and maintain scalable backend services using Java Spring, with event-driven integrations leveraging Kafka
• Define and implement microservices architecture and API integration strategies, aligned with TM Forum specifications
• Lead database design, performance tuning, and optimization using Hibernate and PostgreSQL
• Collaborate with cross-functional teams across Telia’s BSS landscape to align technical solutions with business objectives
• Provide technical guidance, promote best practices, and perform code reviews to ensure high-quality deliverables
• Ensure compliance with security, reliability, and operational standards throughout the software development lifecycle
• Coordinate cross-team project activities and perform system maintenance to ensure continuous service reliability

Software Engineer

• Build education products and product features from early concept through to production.
• Work directly with teachers, technical teams and education partners to understand workflows, pain points and priorities.
• Turn complex or incomplete requirements into clear, practical and usable product solutions.
• Design and build product experiences that integrate naturally with learning platforms and education systems.
• Work across frontend, backend, APIs, integrations and data models where needed.
• Build prototypes quickly, test them with users and turn successful concepts into reliable, maintainable products.
• Work closely with Backend and AI Engineers to make technical and AI capabilities genuinely useful in real education workflows.
• Improve usability, reliability, performance and product quality through active iteration.
• Investigate issues independently, identify the underlying problem and drive practical improvements.
• Use AI-assisted development tools where appropriate to accelerate delivery while maintaining strong engineering judgement and product quality.
• Write clean, tested and maintainable code.

Product Engineer

• Design, develop, and maintain Python backend services powering our AI products.
• Build and optimize LLM-powered pipelines — RAG, semantic search, natural language query processing.
• Develop agent workflows and tool-use patterns for the AI Data Assistant.
• Integrate with large-scale data infrastructure — vector databases, search engines, and analytical query engines.
• Design and implement API endpoints to serve AI-generated insights to client-facing products.
• Optimize prompt engineering, LLM output quality, and system reliability.
• Collaborate with cross-functional teams (Data Engineering, API, Client Side) to deliver product features.
• Monitor and improve performance, latency, and cost efficiency of AI services.
• Contribute to evaluation frameworks and testing strategies for AI-powered features.
• Share knowledge and help build the team’s collective expertise in applied AI.

Software Engineer, AI Products

• Hands on software engineering in C# (.net 10) and python (3.13+)
• Contribute to Software design for experimental projects (R&D)
• Push for continuous improvement of the code base
• Ensure a high level of code quality
• Collaborate with software and AI engineers
• Build, test, and iterate prototypes
• Experiment with LLM-based solutions
• Support data preparation, model fine-tuning, and evaluation processes
• Contribute to transforming validated prototypes into scalable systems

Senior Software Engineer

• Lead the design and delivery of AI enabled cloud solutions on AWS.
• Work with client Project Owners, business stakeholders, architects, and platform teams to understand requirements and define solution direction.
• Translate client needs into technical requirements, user stories, implementation plans, and delivery roadmap.
• Guide engineering teams working with Python, AWS Lambda, API Gateway, IAM, Secrets Manager, CloudWatch, S3, SageMaker, Bedrock, and AWS CDK.
• Design cloud native backend services and integrations between internal systems and external APIs.
• Define secure and scalable patterns for GenAI, LLM integrations, AI agents, and tool based architectures.
• Support technical decision making across architecture, infrastructure, backend services, security, and operations.
• Review designs and implementation to ensure quality, maintainability, security, and scalability.
• Collaborate with product, platform, security, and delivery teams to align solution implementation with project goals.
• Identify technical risks, dependencies, and delivery blockers, then help resolve them.
• Contribute to hands on implementation, troubleshooting, and technical problem solving when required.
• Mentor engineers and support the team in following strong engineering and cloud practices.
• Prepare and lead technical workshops, solution reviews, demos, and client discussions.
• Ensure secure usage of LLMs, including prompt handling, secrets management, logging practices, and prevention of sensitive data exposure.

AI Cloud Tech Lead

• Contribute to onboarding Data Governance, Data Mesh architecture and Data virtualization platform in the organization
• Contribute to all phases of the development lifecycle
• Ensure solution integration and deployment
• Contribute to all steps of the Agile development process: analysis, design, development, testing and maintenance
• Support team with resolving technical complexities and finding best available solutions

Senior Software Developer, Data

• Architect, develop and maintain business applications
• Process user requests for developing of new and support for existing IT systems
• Prepare documentation related to development and maintenance of business applications
• Execute and implement software tests, participate in code reviews
• Follow the development standards applied within the department
• Track the development, maintenance and related tasks in the tracking system used within the team
• Follow the progress of systems development technologies and advance professional skills as necessary

Full Stack Developer – AI Solutions

• Build and ship features on our real-time bidding platform
• Use AI tools hands-on to ship code faster
• Contribute to rewriting and modernizing parts of our legacy platform
• Help shape how the team works with AI day-to-day

Full-stack Engineer jobs in Lithuania

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