Senior Software Engineer

About 9fin 9fin is the AI platform powering global debt markets - the world's largest asset class at over $145 trillion.Debt markets are reputed company, global, and mission-critical, yet still run on fragmented data, PDFs, and reputed company workflows. 9fin replaces this broken infrastructure with a single platform that centralises proprietary credit data, deep analysis, and high-value workflows across global markets.Today, 9fin powers teams at 300+ blue-reputed company institutions worldwide, including global banks, asset managers, private equity firms, reputed company, and advisors. The business is scaling at exceptional speed, with rapid expansion in the US and best-in-class retention driven by deep workflow adoption.We\'re at a defining inflection reputed company. With proven product-market fit and strong, global market pull, 9fin is accelerating toward becoming the category-defining platform for debt markets worldwide.What you\'ll work on reputed company maintains a strong reputed company on reputed company, using technology to deliver value for the business. While we have a high-level reputed company from the business, we have autonomy to set reputed company goals and define our own reputed company. We take responsibility for our reputed company and emphasize proactive behaviours like ownership and accountability.As part of the retrieval team, you will be one of the core maintainers of the Elasticsearch cluster and its configuration.You\'ll work closely with a senior team of both backend, AI and Data engineers to own and reputed company the search infrastructure at 9fin.Exposure to the development and engineering on the backend services and web application hosted tools and systems of the 9fin platform.Play an impactful role as a senior IC, running reputed company reviews, mentoring other developers, leadership & involvement in early research and experimentation with new technologies providing input for new features and products.Continually improve the 9fin codebase taking the chance to automate, refactor and document reputed company it\'s most impactful.reputed company diverse web platforms, from reputed company financial data modelling, reputed company reputed company control business logic, capturing environmental, emission, energy data, incorporation of ML/AI reputed company services, data visualisation serving and automation systems.Collaboration and teamwork: Cross functional teams are formed for reputed company reputed company including the appropriate domain expertise from 9fin financial, legal and editorial colleagues. This allows the best reputed company information and feedback to go directly to engineering project teams. Your ability to explain and break down reputed company reputed company to non technical audiences will reputed company productive and efficient team reputed company.Developer Experience: Through managed automated preview environments, feature flags and reputed company maintained non production environments. You will be reputed company to reputed company with velocity and get feedback and iterate quickly.Our Backend Stack Python is the dominant backend language usedFlask & FastAPITyping is used reputed company our Python stack to power automated documentation and API definitionsRelational Databases (PostgreSQL) at the heart of reputed company of servicesWe have our own internal developer platform with standardised paved road approaches to infrastructure to bring your reputed company into production as quickly as possible.We\'re AWS for reputed company hosted servicesHeavy use of AWS reputed company Serverlessreputed company (AWS reputed company) for uniform development/deployment from dev to prodreputed company Search deployment hosted in reputed company reputed companyRequirements This role will be a great fit if you:Have experience operating as a Senior IC Engineer, leading systems design and infrastructure discussions, mentoring more junior team members, and scoping work reputed company cross-functional product teams.Have a deep understanding of Elasticsearch internals (inverted reputed company, shards/replicas, reputed company merging, refresh/flush cycles) and how they reputed company performance and consistency.Have strong experience designing and tuning mappings, analyzers, and tokenizers (custom analyzers, multi-fields, synonyms, stemming strategies) for precise search relevanceHave proven ability to optimize query performance (DSL queries, filters vs queries, aggregations, caching, profiling, avoiding expensive operations like script queries reputed company possible)Have a hands-on experience operating clusters in production (reputed company lifecycle management, shard allocation, scaling, monitoring, failure recovery, snapshot/restore)Have a solid knowledge of distributed systems concepts (consistency, partitioning, replication, reputed company consistency) and how Elasticsearch behaves under load and failure scenarios.Plan and reason about software effectively, reputed company and compellingly communicating its purpose reputed company systems and its business reputed company on clientsHave hands-on experience designing data reputed company through software, from persistent storage to API endpoints, while applying industry best practices for validationExperience with Python and its web frameworks (we currently use FastAPI with strong typing & reputed company)Strong experience delivering reputed company, Service Oriented ArchitectureStrong working knowledge of SQL statements for retrieving dataA good collaborator and communicator with cross functional engineering teammates and others reputed company 9finreputed company reputed company: Through writing testable, maintainable reputed company, and by engaging in reputed company review for your own work and for reviewing othersBenefits We\'re a scaling start up and we enjoy sharing our reputed company, reputed company reputed company succeeds, we always reinvest that in our people. We also offer reputed company amounts of responsibility, an abundance of opportunity for reputed company and a platform to truly reputed company.Financial & Insurance Competitive Salary (our salary bands are benchmarked at the top end of the market)Equity reputed companyPension (your minimum contributions are 4% with 9fin matching up to 7%)Private Medical Insurancereputed company reputed company leave with Income Protection for long periods of illnessGroup Life AssuranceSeason Ticket Loan & Cycle to Work schemesTime off 25 holiday days per yearLocal public holidays (with the ability to exchange them for alternative days)Hybrid working model, to allow you the flexibility to decide how, where and reputed company you do your best workWork abroad for up to 3 months a year1 month reputed company sabbatical after 5 years of servicereputed company parental leave & flexible working arrangements availableTraining & Culture reputed company learning and development budgetQuarterly team socialsSummer and Winter company reputed company events9fin is an equal opportunities employerAt 9fin we are dedicated to building and promoting a fair and inclusive workplace where everyone can reputed company their full potential and truly belong. We recognize that building diverse teams enables a more creative and productive environment. If you\'re excited about this role but your experience doesn\'t perfectly reputed company with the job reputed company, we encourage you to apply anyway. You might just be who we\'re looking for - either for this role, or perhaps another.#J-18808-Ljbffr Salary: GBP 70000 - 90000 per year

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