Junior Software Engineer

As a Junior Software Engineer reporting to Senior Director of Software Engineering, you'll play a critical role in building the Java services and React/TypeScript applications that power a new R&D team focused on responsible AI for global financial markets.
You'll thrive in this position if you take full ownership of your deliverables, embrace AI-assisted ways of working, and bring curiosity and a collaborative spirit to a team that values candid feedback and learning as much as delivery.

Key Responsibilities

• Build and maintain backend services using Java and Spring, and develop user-facing applications using React and TypeScript, owning capabilities end to end.
• Design and implement secure integrations using REST and modern agent-to-agent protocols, ensuring quality through unit testing, manual validation, and test automation.
• Contribute to requirements analysis and architecture discussions, following and shaping decisions that affect team delivery.
• Collaborate with DevOps on deployment automation, observability, and portfolio security across environments.
• Apply AI-assisted tooling and Nasdaq's GenAI Platform to improve and optimize every step of the development process.

Required Qualifications

• Bachelor's degree in Computer Science, Engineering, or equivalent practical experience.
• Proven years of experience in full-stack software engineering, with production-level Java expertise applying object-oriented design, design patterns, and SOLID principles.
• Experience building component-based web applications; React and TypeScript experience is strongly valued.
• Solid SQL skills including CRUD operations, schema design, and working with database-backed services, alongside strong data structures and algorithms knowledge.
• Proficiency with Git workflows, Linux command-line usage, and an understanding of containerization using Docker or Podman.
• Practical experience using AI-assisted tools in a real development workflow.

Preferred Qualifications

• Exposure to LLM or agent development, including function calling, retrieval-augmented generation, prompt engineering, or agent-tool protocols.
• Basic familiarity with infrastructure-as-code tooling (e.g., Terraform or OpenTofu), Python or another scripting language, or Kubernetes.
• Background in fintech, capital markets, or a regulated industry environment.

This position will be located in Vilnius, Lithuania, and offers the opportunity for a hybrid work environment at least 3 days a week in-office, subject to change, providing flexibility and accessibility for qualified candidates.

Individuals applying for or occupying this position must have no previous unspent convictions for criminal offences under the Criminal Code of the Republic of Lithuania, with the exception of offences solely related to minor road traffic violations.

Come as You Are

Nasdaq is an equal opportunity employer. We welcome applications from candidates of all backgrounds and identities.

We are committed to fostering an inclusive workplace where diverse perspectives, experiences, and identities are valued and celebrated.

We ensure that individuals with disabilities are provided with reasonable accommodation throughout the hiring process.

Benefits & Rewards

We offer a competitive, well-rounded rewards package that supports you and your family - inside and outside work.

• Competitive base salary
• Annual bonus
• Annual equity grant
• Employee Stock Purchase Plan offering discounted company shares
• Voluntary III Pillar Pension Plan with Company contributions
• 20 vacation days + additional vacation days based on tenure
• 6 additional flex days per year
• Work from (almost) anywhere – up to 20 days/year
• Paid time off for volunteer work - up to 2 days/year
• Flexible Health Insurance program
• Group Life Assurance and 24/7 Accident Insurance
• Comprehensive sports, fitness and welness activities
• 24/7 mental health support for you and your family
• Global mentoring program
• Unlimited access to e-learning platforms
• Hybrid work setup
• Modern and comfortable office work environment with fresh fruit, snacks, and weekly fika breaks

We Power the Markets that Power the World

At Nasdaq, we’re proud to be the engine behind the world’s capital markets. But we don’t stop there. We build the technology that drives transparency, trust, and access—helping economies grow and people thrive. Our purpose is to advance economic progress for all. Whether you’re a client, a colleague, or part of our broader community, we’re here to move markets—and possibilities—forward.

Work Where and How You Thrive

Our hybrid work model, NasdaqBlend, gives you flexibility to do your best work—whether that’s from home, in the office, or a mix of both. Check the job listing or reach out to our team for role-specific details.

What Makes Nasdaq Different? Our Purpose

We’re a global team of over 8,500 innovators across 38 countries, united by a shared purpose: advancing economic progress for all. It’s not just what we do—it’s how we do it, together. Want a deeper look into our culture? Explore our Culture Book.

Your Growth Is Our Investment

We support your success through You&Q, our total rewards program that covers every dimension of life—from building wealth and growing your career to prioritizing well-being and family care.

Join the Team Advancing Economic Progress for All.