{"id":4206579,"url":"https://alion.io/job/tata-consultancy-services-big-data-developer-2","title":"Big Data Developer","company":{"id":222,"name":"Tata Consultancy Services","domain":"tcs.com","url":"https://alion.io/company/tata-consultancy-services","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Career site","truth_index":{"grade":"A","score":100,"open_postings":114,"ghost_share":0.018,"stale_share":0,"repost_share":0.254,"time_to_fill_p50_days":9,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Data Science","role_family":"Data Science","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":["Toronto, Canada"],"countries":["CA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"ETL/ELT","optional":false},{"name":"Git","optional":false},{"name":"Hadoop","optional":false},{"name":"Java","optional":false},{"name":"Scala","optional":false},{"name":"Spark","optional":false},{"name":"SQL","optional":false},{"name":"Apache Kafka","optional":true},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"Docker","optional":true},{"name":"Flink","optional":true},{"name":"GCP","optional":true},{"name":"HBase","optional":true},{"name":"Kubernetes","optional":true}],"status":"live","first_seen_at":"2026-11-12T23:46:38Z","employer_posted_date":"2026-11-12","last_verified_at":"2026-11-12T23:46:38Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Role: Developer. Skills: Big Data, Hadoop, Scala. Experience: 8 - 14 Years\nInclusion without Exception\nTata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment to Culture and Diversity is reflected in our people stories across our workforce and implemented through equitable workplace policies and processes.\nTCS has been serving the Canadian marketplace for more than 35 years and today is the technology partner of choice for many of the country's leading organizations. As one of the largest IT services providers in Canada and globally, TCS is aiming to become the world's largest AI-led technology services company and is enabling its clients to transform themselves across the full AI stack, from infrastructure to intelligence.\nRooted in the heritage and values of the Tata Group, TCS is focused on creating long-term value for its clients, investors, employees, and the communities it serves. With a highly skilled workforce supporting customers from coast to coast, TCS has consistently been recognized as a Top Employer by the Top Employers Institute, including a recent top ranking at the country level.\nTCS also sponsors 14 of the world's most prestigious marathons and endurance events, including the TCS Toronto Waterfront Marathon, reflecting its commitment to health, sustainability, and community empowerment.\nBig Data Developer\nPosition Overview\nWe are seeking a talented Big Data Developer to build and maintain robust data processing solutions. The role involves leveraging Apache Spark, Scala, and Java to develop scalable applications that process massive datasets and deliver critical insights across the enterprise. This role is pivotal in supporting data-driven decision-making and operational excellence.\nKey Responsibilities\nDesign and implement end-to-end data pipelines using Apache Spark for ETL and analytics workloads.\nWrite clean, efficient, and maintainable code in Scala and Java following best practices.\nBuild solutions to ingest, transform, and aggregate large-scale financial and operational data.\nAnalyze and optimize Spark applications for speed, memory efficiency, and cost-effectiveness.\nCollaborate with data scientists, analysts, and infrastructure teams to translate requirements into technical solutions.\nIdentify, troubleshoot, and resolve production issues in big data systems.\nImplement comprehensive testing strategies and maintain code quality standards.\nCreate technical documentation and knowledge base articles for developed solutions.\nRequired Qualifications\nProfessional experience developing big data applications.\nStrong expertise in Apache Spark, including Spark Core, Spark SQL, and Spark Streaming.\nAdvanced programming skills in Scala and/or Java.\nSolid understanding of distributed computing principles and architecture.\nExperience with data warehousing and SQL.\nKnowledge of Git and CI/CD pipelines.\nStrong analytical and problem-solving abilities.\nExcellent communication and teamwork skills.\nPreferred Qualifications\nExperience with Kafka, Flink, or other real-time streaming platforms.\nFamiliarity with Hadoop, Hive, HBase, or similar big data technologies.\nCloud platform experience with AWS, Azure, or GCP.\nBackground in financial services or banking.\nKnowledge of data modeling and schema design.\nExperience with Docker and Kubernetes.\nTechnical Skills\nApache Spark\nScala\nJava\nSQL\nETL/ELT\nDistributed Computing\nBig Data Technologies\nPerformance Tuning and Optimization\nTesting Frameworks and Methodologies\nGit\nCI/CD\nTCS does not use artificial intelligence tools for candidate screening or evaluation. This post is for a current vacancy. The hiring process includes an initial screening, followed by a technical evaluation and managerial discussion.\nTata Consultancy Services Canada Inc. is committed to meeting the accessibility needs of all individuals in accordance with the Accessibility for Ontarians with Disabilities Act (AODA) and the Ontario Human Rights Code (OHRC). Should you require accommodation during the recruitment and selection process, please inform Human Resources.\nThank you for your interest in TCS. Candidates that meet the qualifications for this position will be contacted within a 2-week period. 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