{"id":2532105,"url":"https://alion.io/job/itds-senior-net-developer-c-sql-restful-apis","title":"Senior .NET Developer – C#, SQL, RESTful APIs","company":{"id":4374591,"name":"ITDS","domain":"itdsportugal.com","url":"https://alion.io/company/itds-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":"contractor","work_mode":"hybrid","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":36000,"max_usd":79000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":36},"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Agile","optional":false},{"name":"C#","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-10-14T00:00:00Z","employer_posted_date":null,"last_verified_at":"2026-10-14T00:00:00Z","board_verified":false,"closed_at":null,"days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"Unleash innovation — architect tomorrow’s enterprise solutions with power and precision!\nPorto-based opportunity with hybrid work model\nAs a Senior .NET Developer, you will be working for our client, a forward-thinking leader in the technology industry dedicated to delivering robust, scalable, and innovative software solutions. You will play a crucial role in designing, upgrading, and optimizing applications that empower businesses to stay ahead in a competitive landscape. Join us and be part of a journey that pushes technical boundaries and drives digital transformation.\nYour main responsibilities:\nDesign and develop high-quality, scalable .NET applications following best practices and architectural standards\nEnhance and upgrade existing applications to ensure optimal performance, security, and maintainability\nDevelop and optimize complex SQL queries, stored procedures, and views for efficient data processing\nEstablish and maintain automated testing frameworks to ensure code quality and reliability\nCollaborate with cross-functional teams using agile methodologies to deliver innovative solutions\nIntegrate RESTful APIs to enable seamless data and service communication\nApply SOLID principles and design patterns to create flexible and maintainable code\nParticipate in code reviews, knowledge sharing, and continuous improvement initiatives\nYou're ideal for this role if you have:\n6+ years of professional experience in software development, with a strong focus on C# and .NET technologies\nProven expertise in SQL, including database architecture and complex query optimization\nHands-on experience in developing and working with RESTful APIs\nSolid understanding of SOLID principles and design patterns\nExperience working in agile environments\nFluent in English, with Portuguese language skills considered a plus\nIt is a strong plus if you have:\nCertifications related to .NET or software architecture\nExperience with automated testing tools and frameworks\nLanguage Required for the role:\nEnglish (Fluent), Portuguese (Conversational/Fluent preferred)\nEligibility to work on this role:\nOnly candidates with an existing legal right to work in the European Union will be considered for this role.\n#MAKEYourCareerBETTER\nInterested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.\n\nhttps://itdsportugal.com/en/it-jobs/10222/?utm_source=itjobs","description_format":"text","description_chars":2459,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Hybrid work"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Outsourcing & Dedicated Teams","IT Staffing & Staff Augmentation"],"lifecycle":[{"event":"open","at":"2026-10-14T13:03:29Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":1,"expected_fill_days":30,"reasons":["seen:1","velocity","win:early"],"computed_at":"2026-10-15T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/itds-senior-net-developer-c-sql-restful-apis","json_url":"https://alion.io/job/itds-senior-net-developer-c-sql-restful-apis.json","meta":{"generated_at":"2026-10-15T14:56:03Z","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":"assistant_verified","counted_by":"address","units_charged":1,"used_today":2782,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-16T00:00:00Z"}},"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":4374591},"rest":"https://alion.io/mcp/rest/get_company?id=4374591"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fitds-senior-net-developer-c-sql-restful-apis"},{"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%2Fitds-senior-net-developer-c-sql-restful-apis"},{"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%2Fitds-senior-net-developer-c-sql-restful-apis"},{"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/itds-senior-net-developer-c-sql-restful-apis\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fitds-senior-net-developer-c-sql-restful-apis"}]}