{"id":2310178,"url":"https://alion.io/job/olisipo-senior-backend-developer","title":"Senior Backend Developer","company":{"id":3812468,"name":"Olisipo","domain":"olisipo.pt","url":"https://alion.io/company/olisipo-2","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Porto, Portugal"],"countries":["PT"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":33000,"max_usd":72000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":36},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"MySQL","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":true}],"status":"live","first_seen_at":"2026-10-11T00:00:00Z","employer_posted_date":null,"last_verified_at":"2026-10-11T00:00:00Z","board_verified":false,"closed_at":null,"days_open":7,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":7},"description":"Join a community of IT enthusiasts at Olisipo, where we don't just create solutions - we revolutionize them. With a track record spanning over 30 years, we've honed our expertise in nurturing talent. Discover a workplace where your potential knows no bounds!\n\nWe are looking for a Senior Backend Developer to join a hybrid project in Porto.\n\nSalary range: 40 450,00€ - 47 200,00€ annual gross.\n\nProfile:\n- Bachelor’s or Master’s degree in Computer Engineering or a similar field;\n- At least 5 years of experience in backend development;\n- Solid experience in Python;\n- Knowledge of distributed systems;\n- Experience with PostgreSQL and/or MySQL;\n- Experience in cloud environments;\n- Experience in the FinTech sector (valued);\n- Knowledge of KYC, AML, fraud prevention or compliance (valued);\n- Experience in developing large-scale data pipelines (nice to have);\n- Strong analytical skills, a sense of responsibility and a results-oriented approach;\n- Good communication and teamwork skills;\n- Fluency in English.\n\nResponsibilities:\n- Develop and maintain end-to-end backend systems, ensuring their reliability and scalability;\n- Design and implement client-oriented REST APIs;\n- Develop secure and resilient pipelines for data ingestion and processing;\n- Collaborate with multidisciplinary teams in defining and evolving the architecture of solutions;\n- Ensure the quality, security and performance of the applications developed;\n- Contribute to the continuous improvement of development practices and processes.\n\nWe offer:\n- Health insurance;\n- Free online training through the Udemy platform;\n- On-site and remote training at Olisipo's Learning Center;\n- Free certifications (after passing the exam);\n- Discounts at Olisipo Partners (in the areas of health and well-being, fitness, travel, among others);\n- Free psychological consultations;\n- Possibility of a salary advance, without commissions.\n\nIf you have the right profile, send us your CV through our website www.olisipo.pt or to  and learn more about this opportunity!","description_format":"text","description_chars":2051,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Health insurance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","IT Outsourcing & Dedicated Teams"],"lifecycle":[{"event":"open","at":"2026-10-12T00:56:03Z"}],"visa":[],"liveness":{"score":89,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.886,"p_room":1,"age_days":6,"expected_fill_days":34,"reasons":["seen:6","velocity","win:early"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/olisipo-senior-backend-developer","json_url":"https://alion.io/job/olisipo-senior-backend-developer.json","meta":{"generated_at":"2026-10-18T01:18:49Z","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":2193,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"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":3812468},"rest":"https://alion.io/mcp/rest/get_company?id=3812468"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Folisipo-senior-backend-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%2Folisipo-senior-backend-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%2Folisipo-senior-backend-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/olisipo-senior-backend-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Folisipo-senior-backend-developer"}]}