{"id":2198575,"url":"https://alion.io/job/factset-principal-software-architect-full-stack-design-and-develop-financial-trading-applications","title":"Principal Software Architect (Full Stack, Design and Develop Financial Trading Applications)","company":{"id":2786132,"name":"Workday","domain":"myworkdayjobs-impl.com","url":"https://alion.io/company/myworkdayjobs-impl","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":100,"open_postings":51,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":23,"computed_at":"2026-10-23T05:54:15Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["New York, United States","London, United Kingdom"],"countries":["US","GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":152000,"max_usd":305000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1150},"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"JavaScript","optional":true},{"name":"Python","optional":true}],"status":"closed","first_seen_at":"2026-10-09T20:25:36Z","employer_posted_date":"2026-10-09","last_verified_at":"2026-10-21T14:26:40Z","board_verified":false,"closed_at":"2026-10-21T14:26:40Z","days_open":11,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":11},"description":"FactSet creates flexible, open data and software solutions for over 200,000 investment professionals worldwide, providing instant access to financial data and analytics that investors use to make crucial decisions.\nAt FactSet, our values are the foundation of everything we do. They express how we act and operate, serve as a compass in our decision-making, and play a big role in how we treat each other, our clients, and our communities. We believe that the best ideas can come from anyone, anywhere, at any time, and that curiosity is the key to anticipating our clients’ needs and exceeding their expectations.\nPosition Overview:\nWe are seeking a talented Principal Software Architect to advance our Middle Office platform through hands-on technical leadership, architectural design, strategic engineering direction, and hands on contributions. The tech stack is Java with some Python, and JavaScript. We are looking for a solid engineer who can drive good design, scalability, and testing.\nAs a technical leader, you will mentor colleagues, champion engineering best practices, and set standards.\nResponsibilities:\nLead the design and development of scalable, high-performance features, enhancing both new products and existing solutions.\nCollaborate with other architects and LiquidityBook teams to ensure cohesive designs and products\nDefine and promote engineering strategy, standards, and best practices across the organization.\nMentor and support other engineers, fostering technical growth and excellence.\nDrive system modernization initiatives in performance, reliability, and maintainability, including refactoring and technology upgrades.\nParticipate in code reviews, technical design sessions, and problem resolution to ensure consistently high-quality deliverables.\nDrive automated testing practices\nLead by example through hands-on coding and detailed technical contributions.\nRequired Qualifications:\n8+ years of software engineering experience with a strong emphasis on both backend and frontend development\nBachelors degree in computer science or relevant work experience\nProven experience architecting and delivering large-scale distributed systems.\nTrack record of setting technical direction and mentoring engineering teams.\nOutstanding problem-solving and communication skills.\nBachelors degree in computer science or relevant\nPreferred Qualifications:\nExperience in financial trading application development, especially with OMS, EMS, or similar systems.\nFullstack developer, experienced with Java\nFamiliarity with high-performance/low-latency architectures\nKnowledge of trading workflows or FIX protocol\nLeadership in driving system modernization and technology evolution in enterprise environments.\nCompany Overview:\nFactSet (NYSE:FDS| NASDAQ:FDS) helps the financial community to see more, think bigger, and work better. Our digital platform and enterprise solutions deliver financial data, analytics, and open technology to more than 8,200 global clients, including over 200,000 individual users. Clients across the buy-side and sell-side, as well as wealth managers, private equity firms, and corporations, achieve more every day with our comprehensive and connected content, flexible next-generation workflow solutions, and client-centric specialized support. As a member of the S&P 500, we are committed to sustainable growth and have been recognized among the Best Places to Work in 2023 by Glassdoor as a Glassdoor Employees’ Choice Award winner. Learn more at www.factset.com and follow us on X and LinkedIn.\nAt FactSet, we celebrate differenceof thought, experience, and perspective.Qualified applicants will be considered for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, disability, protected veteran status or other characteristics protected by law. 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