{"id":2484899,"url":"https://alion.io/job/lean-solutions-group-where-talent-meets-technology-senior-fullstack-engineer","title":"Senior Fullstack Engineer","company":{"id":3775695,"name":"Lean Solutions Group - Where Talent Meets Technology","domain":"leangroup.com","url":"https://alion.io/company/leangroup-com","size_band":"201-500","is_staffing_agency":false,"employer_type":"staffing","is_intermediary":false,"listed_via":null,"ats_vendor":"Jobvite","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Medellín, Colombia"],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":77000,"max_usd":223000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":6426},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"GraphQL","optional":false},{"name":"JavaScript","optional":false},{"name":"Node JS","optional":false},{"name":"PHP","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"Ruby","optional":false},{"name":"Sass","optional":false},{"name":"Stripe","optional":false},{"name":"C#","optional":true},{"name":"CI/CD","optional":true},{"name":"Git","optional":true}],"status":"live","first_seen_at":"2026-10-14T00:02:50Z","employer_posted_date":"2026-10-14","last_verified_at":"2026-10-14T23:55:43Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Description\nCompany Overview:\nGlobal Technology Services is a rapidly expanding organization situated in Medellín, Colombia. We pride ourselves on possessing one of the most influential networks within software development and IT services for the entertainment, financial, and logistics sectors. Our corporate projections offer a multitude of opportunities for professionals to elevate their careers and experience substantial growth. Joining our team means engaging with expansive engineering teams across Latin America, Philippines and the United States, contributing to cutting-edge developments in multiple industries.\nPosition Title: Fullstack Engineer\nCategory: Software Development\nSeniority: Senior\nLocation: LATAM\nWhat you will be doing:\nWe are looking for a Senior Shopify Developer with strong full-stack web development experience to build, customize, and maintain high-performing e-commerce experiences.\nThe ideal candidate combines deep Shopify storefront expertise with strong front-end and back-end development skills, API integrations, payment processing knowledge, and a strong understanding of UI/UX and conversion-focused e-commerce. This person will be comfortable taking ownership of a production Shopify environment, troubleshooting issues independently, and working directly with business stakeholders.\nRequired Skills & Experience\n5+ years of professional experience as a full-stack developer or in combined front-end/back-end web development roles.\n\nStrong hands-on experience building and customizing Shopify storefronts.\n\nStrong understanding of REST and/or GraphQL APIs.\n\nProficiency with:\n\nShopify Liquid\n\nShopify theme architecture\n\nShopify APIs / Admin API\n\nHTML\n\nCSS/SCSS\n\nJavaScript\n\nResponsive and mobile-first development\n\nBack-end development experience with at least one modern language/framework, such as Node.js, Python, Ruby, or PHP.\n\nExperience integrating third-party platforms through APIs, particularly shipping, tracking, payment, or e-commerce services.\n\nUnderstanding of online payment processing, including tokenization and PCI compliance considerations.\n\nStrong UI/UX sensibility with an understanding of e-commerce conversion and customer experience.\n\nExperience independently supporting and troubleshooting production e-commerce sites.\n\nStrong communication skills and the ability to translate business requirements into technical scope.\n\nFamiliarity with online payment processing and credit card handling best practices (tokenization, PCI compliance considerations); direct experience with PaySafe or a comparable payment processor (Stripe, Braintree, Authorize.net, etc.) is a strong plus\n\nNice to Have\nDirect experience with AfterShip or similar post-purchase/shipment-tracking platforms\nExperience with e-commerce conversion optimization and analytics tools (GA4, Shopify Analytics, heatmaps)\nExperience with version control (Git) and basic CI/CD practices\nBackground supporting a small business or startup as the sole or lead technical resource\nExperience in travel, logistics, shipping, or golf/sporting goods e-commerce\nSoft Skills\nStrong problem-solving and debugging skills\n\nAbility to work independently and take ownership of projects\n\nStrong communication skills with the ability to articulate, diagram and document complex engineering concepts.\n\nWhy you will love GTS:\nJoin a powerful tech workforce and help us change the world through technology\n\nProfessional development opportunities with international customers\n\nCollaborative work environment\n\nCareer path and mentorship programs that will lead to new levels.\n\nJoin GTS and contribute to shaping the data landscape within a dynamic and growing organization. Your skills will be honed, and your contributions will play a vital role in our continued success. GTS is an equal opportunity employer. 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