{"id":3737483,"url":"https://alion.io/job/hays-sr-fullstack-developer-x2","title":"Sr. FullStack Developer x2","company":{"id":1050165,"name":"Hays","domain":"hays.ca","url":"https://alion.io/company/hays-ca","size_band":"5000+","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Toronto, Canada"],"countries":["CA"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":50,"max":70,"currency":"CAD","period":"hour","gross":null,"usd_annual":100000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"AWS","optional":false},{"name":"Docker","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false},{"name":"ElasticSearch","optional":true}],"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":24,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":24},"description":"Senior Full Stack DeveloperJob Type: Contract (6 Months) Location: Toronto, ON Work Model: Hybrid (3 Days Onsite per Week) Compensation: Up to $70/hourAbout the OpportunityOur client is seeking experienced Senior Full Stack Developers to join a high-performing Agile team delivering both on-premises and cloud-native applications within the financial services sector.This role is ideal for highly collaborative engineers who enjoy working across the full technology stack and are comfortable contributing beyond a single specialization. Successful candidates will play a key role in building new features, enhancing platform capabilities, improving engineering practices, and supporting the ongoing evolution of enterprise applications.What You'll DoSoftware DevelopmentDesign, develop, and deliver new application features across both front-end and back-end components.\nBuild scalable and maintainable solutions using: Java\nKotlin\nSpring Framework\nHibernate\nNode.js\nReact\nTypeScript\nJavaScript\n\nContribute to the development of cloud-native and enterprise applications.\nAgile DeliveryActively participate in: Sprint Planning\nDaily Stand-Ups\nSprint Reviews\nSprint Retrospectives\nSprint Execution Activities\n\nCollaborate closely with developers, testers, product owners, and stakeholders to deliver high-quality solutions.\nCloud & DevOpsDevelop and deploy applications within AWS environments.\nManage cloud resources responsibly with a focus on security, scalability, reliability, and cost optimization.\nWork with services including: AWS ECS\nFargate\nS3\nAPI Gateway\nIAM\nCloudFormation\nCloudWatch\nLambda\n\nSupport deployment automation and cloud-native development practices.\nQuality & Engineering ExcellenceParticipate in peer code reviews and maintain high engineering standards.\nDesign and implement: Unit Tests\nIntegration Tests\nSystem Tests\nPerformance Tests\nLoad Tests\n\nContribute to debugging, optimization, refactoring, and continuous improvement initiatives.\nDatabase DevelopmentWork with relational databases and data models.\nBuild and optimize SQL queries and database interactions.\nSupport application development using PostgreSQL and related database technologies.\nWhat You'll Need to SucceedRequired ExperienceBachelor's Degree in Computer Science, Engineering, or a related field.\n5+ years of software engineering experience building enterprise applications and backend services.\n5+ years of hands-on experience with: Java\nSpring\nHibernate\nNode.js\n\nStrong experience with: React\nJavaScript\nTypeScript\nRedux\n\nExperience working within Agile delivery environments.\nCloud & Infrastructure3+ years of experience developing and deploying applications on AWS.\nStrong understanding of: CloudFormation\nCloudWatch\nIAM\nECS\nFargate\nS3\nNetworking\nLambda\n\nDatabasesStrong SQL skills.\nExperience with PostgreSQL or similar relational databases.\nBasic PL/SQL knowledge.\nAdditional SkillsExperience with Docker and containerized applications.\nComfortable working with Python.\nStrong understanding of software engineering fundamentals, including: Debugging\nPerformance Tuning\nCode Management\nBranching Strategies\nRefactoring\nDesign Patterns\n\nNice to HaveKotlin experience.\nElasticsearch or NoSQL database experience.\nExperience building highly scalable cloud-native applications.\nFinancial services industry experience.\nWhat You'll Get in ReturnOpportunity to work on modern cloud-native applications within a leading financial services environment.\nExposure to AWS-based enterprise platforms and modern software engineering practices.\nCollaborative Agile team environment.\nHybrid work arrangement in Toronto.\nCompetitive contract rates.\nWhat You Need to Do NowIf you're interested in this opportunity, please apply with your updated resume.If this role isn't quite right for you but you're exploring new opportunities within software development, cloud engineering, or full-stack development, we'd be happy to have a confidential conversation regarding your career goals.\n This posting is for an existing vacancy with the organization. \n AI may be used to screen, assess or select applicants for the position. \n\n#LI-DNI\n #1127144 - Avneesh Pandey","description_format":"text","description_chars":4141,"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":["Hybrid work"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-11-04T10:19:12Z"}],"visa":[],"liveness":{"score":31,"band":"fade","label":"Fading","p_open":0.85,"p_active":0.485,"p_room":0.75,"age_days":23,"expected_fill_days":28,"reasons":["seen:23","agency","win:late"],"computed_at":"2026-11-06T05:58:05Z"},"pay":{"stated_usd_annual":100000,"is_top_pay":false},"html_url":"https://alion.io/job/hays-sr-fullstack-developer-x2","json_url":"https://alion.io/job/hays-sr-fullstack-developer-x2.json","meta":{"generated_at":"2026-11-07T00:28:31Z","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":1174,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-08T00:00:00Z"}},"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":1050165},"rest":"https://alion.io/mcp/rest/get_company?id=1050165"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fhays-sr-fullstack-developer-x2"},{"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%2Fhays-sr-fullstack-developer-x2"},{"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%2Fhays-sr-fullstack-developer-x2"},{"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/hays-sr-fullstack-developer-x2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fhays-sr-fullstack-developer-x2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3737483}},{"tool":"search_jobs","arguments":{"company":"hays.ca","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3737483},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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