{"id":2120619,"url":"https://alion.io/job/easyjet-principal-software-engineer","title":"Principal Software Engineer","company":{"id":1758344,"name":"Easyjet","domain":"easyjet.com","url":"https://alion.io/company/easyjet-com","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":96000,"max_usd":193000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":43},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"AWS","optional":false},{"name":"C#","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-10-08T23:58:11Z","employer_posted_date":"2026-10-08","last_verified_at":"2026-10-11T17:09:15Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"As a Principal Software Engineer within the eCommerce Platform Delivery team, you will provide leadership and technical stewardship across multiple squads within a defined Mission. You will be responsible for the overall design and accountable for upholding engineering standards, ensuring the delivery of robust, secure, scalable, and high-performance systems. Your role will involve guiding teams towards technical excellence, fostering a culture of continuous improvement, and driving high performance across all aspects of software development.\nWorking closely with Product Managers, Agile Delivery Managers, Enterprise Architects, and the Chapter Lead for Software Engineering, you will ensure engineering standards are upheld, guide complex technical solutions, and align strategy, approach, and principles across the Mission. By championing best practices, modern architectures, and innovation, you will accelerate the delivery of customer-facing features, improve platform resilience, and ensure the platform remains robust, scalable, and future-ready.\nWhat you’ll be doing\nOwn the Mission technical vision, strategy, and roadmap, ensuring alignment with business objectives and platform standards.\nTake accountability for technical delivery and execution of the technical vision and strategy across multiple squads.\nLead the design, architecture, and development of scalable, reliable, and high-performance software systems, including system design, technology selection, and overall architecture.\nChampion data integrity and performance, ensuring systems are designed for scalability and operational resilience.\nOwn the delivery of key product features, ensuring they meet performance, security, and scalability requirements.\nEnsure the quality of code delivered across squads, adhering to best practices and engineering standards.\nActively contribute to and lead code reviews, providing constructive feedback to continuously improve code quality and team capability.\nUtilise metrics and feedback loops to monitor team performance, identify areas for improvement, and drive the continuous development of high-performing engineering teams.\nMentor and provide guidance to junior and mid-level engineers, fostering a culture of continuous learning and improvement.\nStay informed of industry trends, emerging technologies, and methodologies, applying insights to improve software development practices and platform capabilities.\nAs a Principal Software Engineer within the eCommerce Platform Delivery team, you will provide leadership and technical stewardship across multiple squads within a defined Mission. You will be responsible for the overall design and accountable for upholding engineering standards, ensuring the delivery of robust, secure, scalable, and high-performance systems. Your role will involve guiding teams towards technical excellence, fostering a culture of continuous improvement, and driving high performance across all aspects of software development.\nWorking closely with Product Managers, Agile Delivery Managers, Enterprise Architects, and the Chapter Lead for Software Engineering, you will ensure engineering standards are upheld, guide complex technical solutions, and align strategy, approach, and principles across the Mission. By championing best practices, modern architectures, and innovation, you will accelerate the delivery of customer-facing features, improve platform resilience, and ensure the platform remains robust, scalable, and future-ready.\nWhat you’ll be doing\nOwn the Mission technical vision, strategy, and roadmap, ensuring alignment with business objectives and platform standards.\nTake accountability for technical delivery and execution of the technical vision and strategy across multiple squads.\nLead the design, architecture, and development of scalable, reliable, and high-performance software systems, including system design, technology selection, and overall architecture.\nChampion data integrity and performance, ensuring systems are designed for scalability and operational resilience.\nOwn the delivery of key product features, ensuring they meet performance, security, and scalability requirements.\nEnsure the quality of code delivered across squads, adhering to best practices and engineering standards.\nActively contribute to and lead code reviews, providing constructive feedback to continuously improve code quality and team capability.\nUtilise metrics and feedback loops to monitor team performance, identify areas for improvement, and drive the continuous development of high-performing engineering teams.\nMentor and provide guidance to junior and mid-level engineers, fostering a culture of continuous learning and improvement.\nStay informed of industry trends, emerging technologies, and methodologies, applying insights to improve software development practices and platform capabilities.\nWhat you’ll bring to the team\nAbility to link technical strategy and architectural decisions to measurable outcomes, including feature performance, platform reliability, and customer impact.\nDeep knowledge of SQL, databases, data modelling, and performance optimisation.\nProven expertise in cloud and commerce technologies, including AWS.\nStrong background in Microsoft technologies, including C# .NET\nExtensive experience in observability, leveraging tools for monitoring metrics, telemetry, alerts, and logs to ensure system reliability and performance.\nExpertise in data architecture and modelling, with a strong understanding of legacy systems and performance optimisation techniques relevant to operational data platforms.\nProven experience designing and implementing event-driven architectures (EDA) to support real-time data flows.\nStrong knowledge of infrastructure and networking principles, with experience in designing and maintaining secure, high-performance systems across distributed platforms.\n\nExtensive software engineering experience with proven capability to lead complex projects and collaborate across cross-functional teams.\nStrong understanding of data platforms, with the ability to modernise legacy systems while maintaining reliability and performance.\nDeep knowledge of modern design patterns and architectures, including APIs, event-driven architectures (EDA), microapps, front-end frameworks, and app technologies, with experience applying these in eCommerce environments.\n\nWhat we can offer you\nCompetitive base salary\nUp to 20% bonus\n25 days holiday\nBAYE, SAYE & Performance share schemes\n7% pension\nLife Assurance\nFlexible benefits package\nExcellent staff travel benefits\nReady to make an impact? Apply now and help shape the future of digital commerce at easyJet!\nWhat you’ll bring to the team\nAbility to link technical strategy and architectural decisions to measurable outcomes, including feature performance, platform reliability, and customer impact.\nDeep knowledge of SQL, databases, data modelling, and performance optimisation.\nProven expertise in cloud and commerce technologies, including AWS.\nStrong background in Microsoft technologies, including C# .NET\nExtensive experience in observability, leveraging tools for monitoring metrics, telemetry, alerts, and logs to ensure system reliability and performance.\nExpertise in data architecture and modelling, with a strong understanding of legacy systems and performance optimisation techniques relevant to operational data platforms.\nProven experience designing and implementing event-driven architectures (EDA) to support real-time data flows.\nStrong knowledge of infrastructure and networking principles, with experience in designing and maintaining secure, high-performance systems across distributed platforms.\n\nExtensive software engineering experience with proven capability to lead complex projects and collaborate across cross-functional teams.\nStrong understanding of data platforms, with the ability to modernise legacy systems while maintaining reliability and performance.\nDeep knowledge of modern design patterns and architectures, including APIs, event-driven architectures (EDA), microapps, front-end frameworks, and app technologies, with experience applying these in eCommerce environments.\n\nWhat we can offer you\nCompetitive base salary\nUp to 20% bonus\n25 days holiday\nBAYE, SAYE & Performance share schemes\n7% pension\nLife Assurance\nFlexible benefits package\nExcellent staff travel benefits\nReady to make an impact? Apply now and help shape the future of digital commerce at easyJet!","description_format":"text","description_chars":8463,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Continuous learning"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Commerce"],"lifecycle":[{"event":"open","at":"2026-10-08T23:58:11Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":1,"expected_fill_days":20,"reasons":["seen:1","velocity","win:early"],"computed_at":"2026-10-10T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/easyjet-principal-software-engineer","json_url":"https://alion.io/job/easyjet-principal-software-engineer.json","meta":{"generated_at":"2026-10-11T19:31:03Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":6379,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-12T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":1758344},"rest":"https://alion.io/mcp/rest/get_company?id=1758344"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Feasyjet-principal-software-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Feasyjet-principal-software-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Feasyjet-principal-software-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/easyjet-principal-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Feasyjet-principal-software-engineer"}]}