Junior Software Engineer

Location: Lithuania - Vilnius

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.

The annual gross base pay for this role is €35,000 - €61,000. At Nasdaq, we use a structured job and career framework to make sure growth opportunities are clear and fair. The pay range you see reflects the full salary band for this job level, including room for progression over time. The actual offer will depend on factors like your skills, experience, qualifications, and location, and will fall within a portion of the posted range that’s appropriate for this role. In addition to base pay, we offer short-term incentives (bonus or commission) and long-term incentives (equity), where applicable, as well as the following benefits:

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