Senior Software Engineer – Data & Platform

Senior Software Engineer – Data & Platform+ React + TypeScript + REST APIs- PHP +AWS + AI with advertising exp. Remote role Long term Contract AdTech / MarTech Exp. Must-Have Skills — React, TypeScript, JavaScript, HTML, CSSREST APIs & API integration- PHPFrontend architecture & reusable componentsResponsive design, accessibility (WCAG) & performanceUnit, integration & browser testingProduction ownership, CI/CD & debuggingAWS, Apache Spark & data pipelinesData lakes/warehouses & workflow orchestrationPartner integrations, data feeds & identity matchingAuthentication, authorization & secure developmentSystem design & scalable software architectureStrong problem-solving and independent project ownershipAI-assisted software development with proper validation Job Description Responsibilities: ● Build, optimize, and operate production Apache Spark pipelines that generate attributed conversion and optimization feeds from large-scale impression and conversion data. ● Design and evolve data processing and models across modern data lake and warehouse technologies, orchestrated with a production workflow scheduler on AWS. ● Build and operate partner optimization feeds and integrations with external partners, including schemas, identity fields and unique IDs, file delivery, reconciliation, and SLAs. ● Build, change, and operate production REST APIs, including PHP APIs, delivering secure, backward-compatible changes end to end (implementation, validation, authorization, data access, documentation, automated testing, and production diagnostics). ● Trace and modify behavior across controllers, database queries, templates, JavaScript, and automated tests. ● Diagnose production failures, reconcile partner-facing data, execute backfills, and manage staged releases and rollbacks. ● Write and maintain unit and integration tests across pipelines, APIs, and feeds. Qualifications and Education Requirements: ● At least 4 years of professional software development experience, including 3 or more years building production web interfaces. ● Hands-on production experience with React, TypeScript, JavaScript, semantic HTML, and modern CSS. ● A track record of building complex, client-facing SaaS workflows, including onboarding, configuration, validation, status tracking, and error recovery. ● Experience creating data-rich interfaces and reusable frontend components that support multiple projects. ● Strong knowledge of responsive design, accessibility and WCAG standards, design systems, cross-browser compatibility, and frontend performance. ● Experience integrating REST APIs, helping shape API contracts, handling failures gracefully, and building authenticated, role-aware experiences. ● Experience writing and maintaining unit, integration, and browser tests, with the ability to plan test coverage and diagnose recurring failures. ● Experience creating and reviewing frontend technical designs with scalability, maintainability, and cross-platform impact in mind. ● Experience owning software in production, including CI/CD, releases, telemetry, incident investigation, root-cause analysis, runbooks, performance risks, and mitigation. ● Proven ability to lead small engineering projects independently, from ambiguous requirements through production delivery. ● Ability to ramp up quickly, coordinate UI, API, authentication, and deployment work across repositories, and clearly communicate risks and decisions with limited oversight. ● Comfortable partnering with Product and Design to turn requirements and design artifacts into polished user interactions, without needing to serve as the primary visual designer. ● Experience using AI-assisted engineering tools responsibly, with appropriate verification for security, correctness, and maintainability Preferred Skills: ● Direct experience building partner optimization or advertising feeds with external platforms (DSPs, publishers, or measurement partners). ● Experience with deterministic and probabilistic identity matching — unique IDs, device IDs, IP- based matching, and identity graphs. ● Familiarity with edge/log delivery infrastructure and pixel/impression tracking. ● Experience with data lake table formats and query engines at large scale. ● Experience with privacy and compliance-driven data workflows (deletion, opt-out, suppression, data retention). ● Comfort operating in uncharted territory — turning ambiguity into production systems without a detailed guide. Additional Notes: AI-forward engineering. is an AI-forward engineering organization, and we expect engineers — including contractors — to work with AI, not around it. We use AI-assisted development as a standard part of our workflow, and our engineers use it for tickets, design docs, runbooks, and scaffolding to move fast without sacrificing quality. You should be comfortable using AI for code generation, review, documentation, and investigation, and equally comfortable knowing when not to trust the output. We care about outcomes: how effectively you leverage AI to deliver reliable, secure, maintainable systems is part of the job. On-call. This role includes availability for occasional off-hours release or incident support. It does not include formal on-call duty unless separately established. -- Sayantan Das Senior Tech Recruiter | Talent Acquisition | People & Culture [ Verito Solutions - An E-verified company] [ sayantan@veritosolutions.com ]