--- title: 'Senior Java Consultant, Budapest at ION Group' canonical: 'https://feeny.ai/job/senior-java-consultant-budapest-ion-group-budapest-qctsfc2ph36a' type: 'job' last_seen: '2026-09-11' --- # Senior Java Consultant, Budapest at ION Group - **Company:** ION Group - **Location:** Budapest, Hungary - **Employment:** full-time - **Work type:** onsite - **Posted:** 2020-10-07 - **Last confirmed live:** 2026-09-11 - **Apply:** https://jobs.lever.co/ion/5c5ca4f1-80ca-43d0-b672-0b641d087ed7 ## Job description At Lab49, our philosophy is simple: we give talented developers the tools, support and environment they need to push the envelope on every project. What makes us stand out is even simpler. We don’t settle for average products or ‘just good enough’ solutions. When you work here, you’ll always have what you need to go well beyond what already ambitious clients expect from us. Our work is fast and our work is good. Move from project to project, take on new challenges and develop new skills to meet them and you’ll discover what you can really do, faster than ever before. You’ll work on some of the most varied and sophisticated technological challenges the industry has to offer. That means embracing difficult problems and being driven to achieve the ambitious. But you will never do it alone. You'll work alongside talented colleagues who relish the thrill of achieving what some see as impossible. It also means joining a community of like-minded people whose passion for technology and its potential goes beyond clocking in and out of a job. If you’re interested, you’ll have the opportunity to bring new technologies into our work, suggest fields we should be moving into or get stuck into research projects that are as much about intellectual curiosity as commercial value. ## Responsibilities - Build distributed systems that deal with actor-based concurrency, reactive programming, distributed in-memory data grids, messaging that goes beyond plain JMS as we fully expect to participate in shaping the future of financial technology stacks. - Work on server side JVM-based projects. - Hit the ground running with the typical Java or Scala JVM ecosystem stack (Spring and its subprojects, Guice, Guava, Maven, Hibernate, Jetty, etc.). - Retool continuously as the technology landscape changes every few years. - Be able to pick up other technologies along the whole development stack, including front-end and other non-JVM ecosystems. - Work with our clients in iterative, project-based engagements, where self-organizing and focused teams move quickly to build innovative solutions for the client. - Have the desire to collaborate, and like sharing and learning from your colleagues. - Be passionate about delivering quality code. - Demonstrate experience writing commercial-grade software applications. - Have a deep understanding of multithreading and real-time software architectures. - Have an abiding interest in and competence for solving real-world business problems (with technology as an enabler). - Be determined to succeed despite obstacles and challenges, as well as a positive attitude favoring achievement of goals over open-ended investigation. Required Skills and Experience - 7+ years of recent hands-on experience in designing and coding complex, enterprise, commercial-grade applications in core, server-side Java, ideally Java 8+. - Experience building RESTful Web Services. - Test-driven development, which includes Unit and End-to-End Testing. - Experience with Agile software development (e.g. SCRUM or KANBAN). - Experience in a CI/CD environment. - Bachelors or Masters in Computer Science, Engineering, Physics, Math, or related work experience. - Experience with, knowledge of, and strong demonstrated interest in, global financial markets and financial products. Lab49/ION is committed to maintaining a supportive and inclusive environment for people with diverse backgrounds and experiences. We respect the varied identities, abilities, cultures, and traditions of the individuals who comprise our organization and recognize the value that different backgrounds and points of view bring to our business. Lab49/ION adheres to an equal employment opportunity policy that prohibits discriminatory practices or harassment against applicants or employees based on any legally impermissible factor. ## About ION Group ## Company Overview - **One-liner**: ION Group delivers mission-critical trading, treasury, and workflow automation software to financial institutions, corporations, central banks, and governments. - **Entity Type**: Private (privately held, with venture funding rounds) - **Headquarters**: London, United Kingdom - **Founded**: 1998 (per Crunchbase and LinkedIn) / 1999 (per Wikipedia) - **Founders**: Andrea Pignataro ## Core Business - **Primary industry**: Financial technology (trading & risk management, treasury, capital markets software) - **Target customers**: B2B – banks, asset managers, hedge funds, central banks, corporates, and governments - **Mission/purpose**: “We help our customers do more, faster and better than before” by combining automation with a strategic view of the industries they serve. ## Products & Services (Source: [crunchbase.com](https://www.crunchbase.com/organization/ion-group)) - **Openlink**: Treasury and risk management platform for commodity-intensive organizations (real-time cash management, FX, derivatives trading). - **City Financials**: Pre-configured treasury and risk management solution for multinational corporations. - **Treasura**: SaaS-based treasury management system for advanced cash management. - **Reval TS**: Liquidity management system for banks (cash concentration, visibility, interest calculations). - **ETRM/CTRM Solutions**: Energy and commodity trading and risk management solutions. - **XTP Execution**: Integrated cleared derivatives trading solution (order management, execution, connectivity). - **Fidessa, Dealogic, Acuris, Allegro**: Acquired platforms covering equities, derivatives, M&A data, and capital markets analytics. ## Market Standing - **Valuation/Market Cap**: Not disclosed (private company) - **Key Metrics**: - **Annual Revenue**: $3.3B (per LinkedIn – source: [linkedin.com](https://linkedin.com/company/iongroup)) - **Total Funding**: $400M (venture round in May 2016) + €35M (venture round in June 2004) – source: [linkedin.com](https://linkedin.com/company/iongroup) - **Notable Investors/Partners**: No lead investors explicitly named; early rounds from undisclosed sources. Key partners include financial institutions using its platforms. - **Growth Signals**: - Headcount: 2,944 (LinkedIn, +1.7% YoY) vs. 13,000+ (careers page – discrepancy likely due to different reporting methods). - Major acquisitions: Dash Financial Technologies (2021), Clarus Financial Technology (2021), Broadway Technology (2020), Acuris ($1.8B, 2019), Prelios S.p.A. ($1.5B, 2023), Fidessa (£1.5B, 2018), Allegro (2019), Dealogic (2017). - Never sold a business since founding (Wikipedia). - Operates in 18+ countries, 84 offices globally. ## Competitive Advantages - **Breadth of mission-critical software**: Covers the full trade lifecycle (pre-trade, execution, risk, treasury, post-trade) for multiple asset classes. - **Acquisition-driven expansion**: Absorbed market leaders in different niche verticals, creating a unified platform with deep domain expertise. - **Long-term ownership mentality**: Founder Andrea Pignataro has never sold a business, signaling stability and commitment. - **High switching costs**: Clients rely on ION for core financial operations; replacing systems is extremely difficult. - **Global scale**: 13,000+ employees, 84 offices, presence in 46 countries (LinkedIn breakdown). ## Strategic Focus - **Automation & AI**: Investing heavily in research and development to “shape the future of automation” (company website). - **Expansion into asset management**: Acquisition of Prelios (2023) and Clarus (2021) signals push into real estate and derivatives analytics. - **Graduate development programs**: Launching programs in Pisa, Trento, and other locations to build talent pipeline. - **Resilience after ransomware attack**: In Feb 2023, LockBit ransomware hit ION’s derivatives platform; clients faced disruptions but systems were restored within weeks. The company continues to focus on security and compliance. ## Why Work Here - **Culture**: Described as “visionary innovators” with a “positive culture of continuous improvement.” Emphasis on community and collaboration. - **Remote/Hybrid**: Some roles are hybrid (e.g., Milan-based positions); many are office-based depending on location. The careers page lists full-time and hybrid options. - **Notable perks**: Graduate development programs, global mobility across 84 offices, exposure to mission-critical financial systems. - **Engineering culture**: Large technical team (1,060+ in technical roles), with focus on React, DevOps, cloud engineering, and AI. Recent open positions include Senior Web UI Developer, iOS Engineer, and AI Engineer. - **Growth trajectory**: Rapid scaling through acquisitions and organic hiring; opportunities to work on cutting-edge fintech products. - **Diverse locations**: Offices in London, New York, Noida, Budapest, Chisinau, Milan, Mexico City, and more. ## Sources 1. [linkedin.com](https://linkedin.com/company/iongroup) – Employee count, revenue, funding, acquisitions, workforce breakdown 2. [en.wikipedia.org](https://en.wikipedia.org/wiki/Ion_Group) – Founding, founders, acquisition history, ransomware attack 3. [crunchbase.com](https://www.crunchbase.com/organization/ion-group) – Products, funding, overview 4. [iongroup.com](https://iongroup.com/careers/) – Careers page, open positions, company values 5. [jobs.lever.co](https://jobs.lever.co/ion) – Current job listings ## Other roles at ION Group - [Leveraged Finance Editor – Debtwire North America](https://feeny.ai/job/leveraged-finance-editor-debtwire-north-america-ion-group-new-york-eh5956rkr278) — New York, NY - [Information Security Manager](https://feeny.ai/job/information-security-manager-ion-group-london-mvaeqt97bjw7) — London, United Kingdom - [iOS Team Lead - Onsite - Dallas, TX (Contractor)](https://feeny.ai/job/ios-team-lead-onsite-dallas-tx-contractor-ion-group-dallas-twcw10235rvr) — Dallas, TX - [iOS Team Lead - Onsite - NYC (Contractor)](https://feeny.ai/job/ios-team-lead-onsite-nyc-contractor-ion-group-new-york-pgkggdgdd8jw) — New York, NY - [iOS Team Lead - Onsite - Dallas, TX](https://feeny.ai/job/ios-team-lead-onsite-dallas-tx-ion-group-dallas-10yvn34jpc1j) — Dallas, TX - [Android Team Lead, Dallas, TX (Contractor)](https://feeny.ai/job/android-team-lead-dallas-tx-contractor-ion-group-dallas-5zkb9zat5e7s) — Dallas, TX - [Android Team Lead, Dallas, TX](https://feeny.ai/job/android-team-lead-dallas-tx-ion-group-dallas-hs2d84yha0p8) — Dallas, TX - [Android Team Lead, New York (Contractor)](https://feeny.ai/job/android-team-lead-new-york-contractor-ion-group-new-york-trt70s1q2688) — New York, NY - [Android Team Lead, New York](https://feeny.ai/job/android-team-lead-new-york-ion-group-new-york-460mg00ph92b) — New York, NY - [iOS Senior Associate - Onsite - NY / Dallas](https://feeny.ai/job/ios-senior-associate-onsite-ny-dallas-ion-group-new-york-9dh3a3vg42p2) — New York, NY