{"id":4171432,"url":"https://alion.io/job/nasstar-principal-data-engineer","title":"Principal Data Engineer","company":{"id":172343,"name":"Nasstar","domain":"nasstar.com","url":"https://alion.io/company/nasstar","size_band":"201-500","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Pinpoint","truth_index":null},"role":"Data Science","role_family":"Data Science","seniority":"lead","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":["GB"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Databricks","optional":false},{"name":"ETL/ELT","optional":false},{"name":"Incident Management","optional":false},{"name":"pySpark","optional":false},{"name":"SQL","optional":false},{"name":"Python","optional":true},{"name":"Spark","optional":true}],"status":"live","first_seen_at":"2026-11-11T14:51:49Z","employer_posted_date":"2026-11-11","last_verified_at":"2026-11-12T14:51:49Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"As a Principal Data Engineer, you will serve as the bridge between complex technical architecture and strategic business value. This is a high-impact, client-facing leadership role designed for an expert who can navigate deep technical challenges while maintaining a \"customer-first\" mindset. You will be the primary technical authority for our clients, ensuring their data platforms are resilient, scalable, and aligned with their long-term business goals.\nKey Responsibilities\nCustomer Excellence & Stakeholder Management: Act as the primary strategic partner to client business owners, aligning technical data solutions with corporate goals while championing reliability and \"clean data\" for all consumers.\nSolution Architecture & Tech Strategy: Drive the development of complex, large-scale data architectures and multi-year technology roadmaps, balancing technical innovation with cost efficiency and operational stability.\nDelivery & Execution: Oversee \"team-of-teams\" delivery performance, ensuring the quality and resilience of high-impact data pipelines while managing capacity planning and team velocity.\nIncident Management & Resilience: Lead the triage and resolution of critical platform incidents, taking full ownership of root-cause prevention and maintaining transparent communication with clients during recovery.\nGovernance, Risk & Compliance: Implement robust governance frameworks and compliance controls, acting as the authoritative lead on risk mitigation and the primary technical contact for regulatory matters.\nKnowledge Management & Mentorship: Champion an organisational culture of knowledge sharing, representing the firm at industry events and establishing best practices across communities of practice.\nBusiness Strategy: Influence long-term organizational health by driving platform efficiency, managing engineering budgets, and leading strategic hiring and retention initiatives.\nSkills, Knowledge and Expertise\n Essential:\nProven experience in a principal engineering role.\nExtensive experience with cloud data platforms such as Azure or AWS, with a focus on Databricks.\nHighly skilled with Pythonic data processing tools such as Pyspark and SparkSQL.\nStrong understanding of data modelling concepts relational and non-relational databases.\nProficiency in SQL and experience with data integration and ETL tools. \nExcellent knowledge of big data technologies and frameworks. \nStrong knowledge of data governance and data security best practices.\nStrong analytical mindset with attention to detail and a consultative approach. \nExcellent communication and stakeholder management skills. \nBenefits\nRemote-first working with flexibility around client needs.\nPrivate health insurance. \nProjects with global brands & public sector leaders, working on real-world impact. \nExclusive access to AWS & Databricks certifications, training, and partner tools.\n A collaborative culture of technical excellence and continuous learning.\nA lead role in shaping delivery standards and future Data & Consulting practices within the firm.\nCompetitive salary, bonus structure, and long-term growth 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