{"id":3049033,"url":"https://alion.io/job/marsh-mclennan-applications-developer","title":"Applications Developer","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":32,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":10,"computed_at":"2026-10-23T05:54:15Z"}},"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":"explicit","locations":["Mexico City, Mexico"],"countries":["MX"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":61000,"max_usd":119000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":10},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Angular","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Docker","optional":false},{"name":"Express","optional":false},{"name":"GCP","optional":false},{"name":"Git","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"JavaScript","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-08-28T00:00:00Z","employer_posted_date":"2026-08-28","last_verified_at":"2026-10-24T05:44:27Z","board_verified":true,"closed_at":null,"days_open":57,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":57},"description":"Company:\nMarshDescription:\nApplications Developer\nWe are seeking an Applications Developer to join our team at Marsh. This role will be based in Mexico City. This is a hybrid role that has a requirement of working at least three days a week in the office. As an Applications Developer at Marsh, this role involves maintaining, enhancing, and supporting existing applications to ensure optimal performance, reliability, and scalability.\nWe will count on you to:\nMaintain and enhance existing applications built on the MEAN stack (MongoDB, Express.js, Angular, Node.js).\n\nDevelop and maintain back-end services and APIs using Python and Node.js.\n\nManage and optimize Postgres databases, including writing efficient queries and ensuring data integrity.\n\nCollaborate with cross-functional teams including QA, DevOps, and front-end developers to deliver high-quality solutions.\n\nDocument application changes, processes, and procedures.\n\nMonitor application performance and implement improvements as needed.\n\nStay updated with emerging technologies and best practices relevant to application maintenance and development.\n\nWhat you need to have:\n+5 years of proven experience with the MEAN stack (MongoDB, Express.js, Angular, Node.js) or MERN stack (MongoDB, Express.js, React, Node.js).\n\nStrong proficiency in Python programming for back-end development.\n\nExperience with Postgres database design, development, and optimization.\n\nSolid understanding of RESTful API design and development.\n\nFamiliarity with version control systems such as Git.\n\nStrong problem-solving skills and attention to detail.\n\nBachelor’s degree in computer science, Information Technology, or a related field, or equivalent work experience.\n\nAdvanced Level of English is a Must\n\nWhat makes you stand out:\nExperience with containerization technologies such as Docker.\n\nKnowledge of cloud platforms (AWS, Azure, or GCP).\n\nWhy join our team:\nWe help you be your best through professional development opportunities, interesting work and supportive leaders.\n\nWe foster a vibrant and inclusive culture where you can work with talented colleagues to create new solutions and have impact for colleagues, clients and communities.\n\nOur scale enables us to provide a range of career opportunities, as well as benefits and rewards to enhance your well-being.\n\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 marsh.com, or follow us on LinkedIn and X.Marsh is committed to creating a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age, background, disability, ethnic origin, family duties, gender orientation or expression, 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.Marsh 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. Office-based teams will identify at least one “anchor day” per week on which their full team will be together in person.","description_format":"text","description_chars":3616,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":["Flexible schedule","Hybrid work","Professional development"],"hiring_locations":[{"name":"Mexico","iso":"MX","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-22T01:45:38Z"}],"visa":[],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.245,"p_room":0.28,"age_days":56,"expected_fill_days":10,"reasons":["conf:0","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-23T05:54:15Z"},"pay":null,"html_url":"https://alion.io/job/marsh-mclennan-applications-developer","json_url":"https://alion.io/job/marsh-mclennan-applications-developer.json","meta":{"generated_at":"2026-10-24T05:59:09Z","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":8596,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-25T00:00:00Z"}},"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":1769686},"rest":"https://alion.io/mcp/rest/get_company?id=1769686"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmarsh-mclennan-applications-developer"},{"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%2Fmarsh-mclennan-applications-developer"},{"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%2Fmarsh-mclennan-applications-developer"},{"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/marsh-mclennan-applications-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmarsh-mclennan-applications-developer"}]}