Senior/Staff Java Engineer

Job Description Who we are: We are more than 900 engineers in several RnD offices over the world: Bulgaria, Georgia, Germany, Portugal, Turkey. Our engineers are coding contest winners, podcast makers, public speakers and real craftsmen of software development. What we have: Our comprehensive trading platform is a flagship product, facilitating trade in stocks, ETFs, options, and various other asset classes. It boasts a robust web and mobile user interface, supplemented by advanced managerial tools for brokers.   We are looking for a  Middle/Senior Java Developer  to join the Research&Development Team.   As a backend developer, you will play a crucial role in managing the entire order lifecycle, encompassing order capture, validation, routing, execution, option price calculation, and reconciliation. Our priority is to deliver high-performance, low-latency, and fault-tolerant solutions, with a strong emphasis on code quality through comprehensive code reviews and rigorous testing.   Although our product holds a substantial presence, we consistently address both functional and non-functional requirements while responsibly managing technical debt. Our work environment is agile, primarily utilizing Scrum, and is supported by tools such as Atlassian, Slack, Sonar, Docker, and others.   We expect our Middle/Senior Java Developer to:    Develop reliable, high-performance distributed systems, Optimize, document, and maintain code with thorough test coverage, Collaborate effectively with colleagues and embrace constructive feedback, Conduct meticulous, blame-free code reviews to continually improve code quality, Perform analysis to effectively address multi-threading issues, Work collaboratively with experienced team members in a complex business environment, Understand detailed business requirements within the finance industry. Qualifications Must-have skills:    Proficient in Java 11+ with experience in Collections, Streams, Threads, and Concurrency, Familiar with Spring, AspectJ, and Kotlin, Skilled in using JUnit5 and Mockito for effective testing, Experienced with Docker, PostgreSQL, Liquibase, Prometheus, and ELK, Exposure to distributed systems, with a focus on performance and reliability, Understanding of asynchronous communication principles, Knowledge of relational database internals, including indexes and locks, Experience in debugging heap and thread dumps, Proficient in code profiling using tools like YourKit, JProfiler, and Visual VM, Strong knowledge of Unix/Linux, Familiar with trading and capital markets, B2+ English proficiency. Company Description Ironwood Digital has been working for nearly two decades consulting and developing for the financial industry.  We solve complex technological challenges facing the most well-respected financial institutions worldwide.    By becoming a part of Ironwood Digital, you’ll become a part of a company that fosters self-improvement and actively seeks out-of-the-box ideas. Our teams work together to create the next generation of financial software solutions. We welcome all candidates who believe, as we do, that innovation is grounded in education. Additional Information Care for the employees is one of Ironwood Digital' core values. For the suggested position, we offer a benefits package that will guarantee the comfort of our new teammate. Flexibility benefits: Possibility of hybrid/remote work mode, Flexible working hours. Health and recreation benefits: 20 days of paid vacation, 5 days of fully paid additional wellness days, Medical insurance – premium package, Free MultiSport card. Facility benefits: Modern office with new equipment, Panoramic view of Vitosha mountain, PlayStation, Billiard, Relax zone and Gym, Parking space/public transport card, Free drinks and snacks. Community benefits: Teambuilding activities, Corporate parties, Football club, Speakers' club, Free admission to corporate external events, Pos