{"id":3055188,"url":"https://alion.io/job/marsh-mclennan-senior-software-engineer","title":"Senior Software Engineer","company":{"id":1769686,"name":"Marsh McLennan","domain":"marshmclennan.com","url":"https://alion.io/company/marshmclennan","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":80,"open_postings":73,"ghost_share":0,"stale_share":0.986,"repost_share":0,"time_to_fill_p50_days":12,"computed_at":"2026-10-24T06:02:35Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bristol, United Kingdom","Glasgow, United Kingdom","Birmingham, United Kingdom","Leeds, United Kingdom","London, United Kingdom","Milton Keynes, United Kingdom","Manchester, United Kingdom","Cardiff, United Kingdom","Edinburgh, United Kingdom","Norwich, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":83000,"max_usd":163000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":130},"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Angular","optional":false},{"name":"Copilot","optional":false},{"name":"JavaScript","optional":false},{"name":"Python","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-08-07T00:00:00Z","employer_posted_date":"2026-08-07","last_verified_at":"2026-10-24T10:34:12Z","board_verified":true,"closed_at":null,"days_open":78,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":78},"description":"Company:\nMarshDescription:\nMarsh are looking for an experienced Senior Software Engineer who is ready to make an immediate impact. This is a hands-on role for someone who can hit the ground running, work independently, and contribute to the design, development, and support of scalable applications. The successful candidate will bring strong expertise in TypeScript, JavaScript, and Angular, along with a genuine interest in how AI can be applied to improve software delivery and business outcomes.\nThis role sits within a collaborative technology team focused on building modern, scalable software solutions that support Marsh’s evolving digital and AI ambitions. The team works closely with product, architecture, and business stakeholders to deliver high-quality, secure, and maintainable solutions. We value innovation, continuous improvement, and a hands-on approach, and we’re looking for someone who can operate independently while contributing positively to a fast-paced, delivery-focused environment.\nThis is a hybrid working role, with a requirement to work three days per week in the office. For this role we can consider any of our UK offices as a base location.\nWe will count on you to:\nDesign, develop, and support scalable software solutions using modern engineering best practices.\nWork independently to deliver high-quality outcomes in a fast-paced environment.\nCollaborate with stakeholders, product owners, and technical colleagues to ensure solutions meet business needs.\nWrite clean, maintainable code and robust unit tests in line with coding standards.\nTroubleshoot and resolve technical issues, including performance and integration challenges.\nContribute to a culture of continuous improvement, knowledge sharing, and team collaboration.\nWhat you need to have:\n8+ years’ experience in a similar software engineering role.\nStrong hands-on experience with Angular.\nProven expertise in TypeScript and JavaScript.\nAbility to operate independently and take ownership of delivery.\nStrong communication skills and the ability to work effectively with both technical and non-technical colleagues.\nExperience working in Agile environments and delivering maintainable software solutions.\nWhat makes you stand out:\nExperience working with or developing AI-enabled solutions.\nFamiliarity with AI productivity tools such as GitHub Copilot.\nPython experience.\nA proactive, self-starting mindset with a strong sense of accountability.\nExperience contributing to modern, scalable application environments.\nWhy join our team:\nWe support your growth through professional development opportunities, engaging work, and supportive leadership.\nWe foster a vibrant and inclusive culture where you can collaborate with talented colleagues to create innovative solutions and make a meaningful impact for clients, colleagues, and communities.\nOur scale provides a wide range of career opportunities, alongside benefits and rewards designed to enhance your well-being.\nMarsh (NYSE: MRSH) is a global leader in risk, reinsurance and capital, people and investments, and management consulting, advising clients in 130 countries. With annual revenue of over $27 billion and more than 95,000 colleagues, Marsh helps build the confidence to thrive through the power of perspective. For more information, visit corporate.marsh.com, or follow us on LinkedIn and X.Marsh is committed to embracing a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age background, civil partnership status, disability, ethnic origin, family duties, gender orientation or expression, gender reassignment, marital status, nationality, parental status, personal or social status, political affiliation, race, religion and beliefs, sex/gender, sexual orientation or expression, skin color, or any other characteristic protected by applicable law. We are an equal opportunities employer. We are committed to providing reasonable adjustments in accordance with applicable law to any candidate with a disability to allow them to fully participate in the recruitment process. If you have a disability that may require reasonable adjustments, please contact us at  is committed to hybrid work, which includes the flexibility of working remotely and the collaboration, connections and professional development benefits of working together in the office. All Marsh colleagues are expected to be in their local office or working onsite with clients at least three days per week. 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