{"id":137706,"url":"https://alion.io/job/mthree-software-developer-london-heathrow-uk","title":"Software Developer, London, Heathrow UK","company":{"id":456041,"name":"Mthree","domain":"mthree.com","url":"https://alion.io/company/mthree-2","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":83,"open_postings":17,"ghost_share":0,"stale_share":0.471,"repost_share":0,"time_to_fill_p50_days":68,"computed_at":"2026-10-28T05:59:10Z"}},"role":"Backend","role_family":"Backend","seniority":"junior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":47000,"max_usd":108000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":32},"experience_years_min":1,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"C++","optional":false},{"name":"Java","optional":false},{"name":"Python","optional":false},{"name":"Scrum","optional":false},{"name":"Waterfall","optional":false}],"status":"live","first_seen_at":"2026-06-05T14:10:38Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-10-29T02:33:56Z","board_verified":true,"closed_at":null,"days_open":145,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":144},"description":"*This opportunity is hybrid in Heathrow. Please apply only if you are happy to commute.\nAt mthree, we connect talented graduates with top-tier organizations, including leading investment banks and companies across insurance, travel, and more. We currently have a Software Developer (C++|Java| Python) role with a leading travel technology company.\nWhat You will Do\nDevelop and maintain software for large-scale, mission-critical systems requiring high performance and 24/7 reliability.\nDesign and deliver new features in collaboration with Business Analysts, Product Managers, QA teams, and other stakeholders.\nSolve complex software engineering challenges with a strong focus on performance, resilience, and system reliability.\nWork in an Agile (Scrum) or Waterfall environment, contributing throughout the full software development lifecycle.\nRequirements\nA bachelor’s degree in Computer Science or a related field (2.1 or higher).\n1+ years experience in C++ or Java or Python\nThe right to work in the UK without visa sponsorship.\nHow to Apply\nApply via the form below.\nEngage in video interviews with our friendly talent team (30 min video call)\nTech Screening - (30 min video call)\nInterview directly with our client\nDiversity and Inclusion at mthree\nAt mthree, we celebrate diversity and foster an environment where everyone can thrive. 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