{"id":788955,"url":"https://alion.io/job/merciv-senior-frontend-engineer","title":"Senior Frontend Engineer","company":{"id":679384,"name":"Merciv","domain":"merciv.com","url":"https://alion.io/company/merciv","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":7,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-11-05T05:54:30Z"}},"role":"Frontend","role_family":"Frontend","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":["New York, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":150000,"max":200000,"currency":"USD","period":"year","gross":null,"usd_annual":200000},"salary_estimate":null,"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Chart.js","optional":false},{"name":"CI/CD","optional":false},{"name":"CSS Modules","optional":false},{"name":"Cypress","optional":false},{"name":"D3.js","optional":false},{"name":"Git","optional":false},{"name":"GraphQL","optional":false},{"name":"JavaScript","optional":false},{"name":"Jest","optional":false},{"name":"React Query","optional":false},{"name":"React Router","optional":false},{"name":"React.js","optional":false},{"name":"Recharts","optional":false},{"name":"Redux","optional":false},{"name":"Rest API","optional":false},{"name":"State Management","optional":false},{"name":"styled-components","optional":false},{"name":"Tailwind CSS","optional":false},{"name":"TypeScript","optional":false},{"name":"Vite","optional":false},{"name":"Webpack","optional":false},{"name":"WebSockets","optional":false},{"name":"Zustand","optional":false},{"name":"A/B Testing","optional":true},{"name":"Figma","optional":true},{"name":"Next.js","optional":true},{"name":"Node JS","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-03-03T03:38:08Z","employer_posted_date":"2026-03-03","last_verified_at":"2026-11-05T10:37:21Z","board_verified":true,"closed_at":null,"days_open":247,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":247},"description":"About Merciv\nMerciv is an AI and data analytics startup dedicated to reshaping how businesses approach strategic intelligence. Our mission is to transform how organizations harness data, generate insights, and drive strategic decisions through cutting-edge AI pipelines and dynamic forecasting mechanisms.\nWe're building toward a world where every business decision is informed by the right data at the right time, combining AI capability with human judgement. Our technology:\nConnects disparate data sources into a single, coherent intelligence layer\n\nAugments human decision-making with autonomous AI analysis\n\nSurfaces insights and opportunities that traditional tools miss\n\nForecasts outcomes and helps teams navigate uncertainty with real clarity\n\nGives organizations the ability to shape their markets, not just react to them\n\nWe're building solutions that are robust and scalable but also genuinely intuitive, so that teams across an organization can actually use them, not just the data team. We've raised $14M in seed funding, built our team around a strong engineering culture, and are launching publicly after nearly two years in stealth mode.\nAbout the Team\nWe're building an agentic AI platform that's changing how enterprises work with data. Merciv connects an organization's entire data landscape with external sources - social media trends, industry reports, consumer behavior signals - to surface insights and automate workflows that used to take analysts weeks.\nWe care a lot about making powerful tools feel simple. Every feature should be intuitive, every component interactive. We want users to open Merciv and immediately feel like they can do more than they could before.\nOur lean, agile team thrives on innovation and autonomy. We're small enough that everyone has real ownership. We use a DRI (Directly Responsible Individual) model - you'll own major product features from conception to launch, not just contribute to them. You'll wear multiple hats, and that's by design.\nOur work environment thrives on creativity and cutting-edge technology, built for those eager to shape the future of human-AI collaboration. If you’re excited about being a part of a fast-paced, innovative startup culture and making a significant impact on client business, Merciv is the place for you. Join us as we expand the horizons of retail intelligence and deliver unparalleled value to our clients.\nThe Role\nMerciv is transforming how brands understand consumers through autonomous AI that doesn’t just analyze data - it proactively surfaces insights that drive million-dollar decisions. Our platform powers some of the largest retail and consumer goods organizations in the world, synthesizing signals from thousands of sources to reveal patterns and opportunities before competitors see them coming.\nAs we scale our enterprise platform and launch our self-serve tier, we need a Senior Frontend Engineer who can craft exceptional user experiences that make complex AI-powered insights feel intuitive and actionable. This is your chance to build the interface that puts autonomous consumer intelligence into the hands of brand leaders, researchers, and marketers.\nYou’ll own critical parts of our frontend architecture, building the UI that enables users to explore millions of data points, understand nuanced consumer sentiment, and make confident decisions backed by AI reasoning. Working closely with our product, design, and AI teams, you’ll create elegant experiences that transform dense analytical outputs into clear, compelling narratives.\nThis is a hands-on role where you’ll build the interactive components that enterprise brands rely on daily to stay ahead of market shifts. In this role, you’ll be the architect of experiences that must be enterprise-grade (fast, accessible, secure) while maintaining startup agility. Your work directly impacts whether a brand leader can understand a critical consumer trend in seconds or gets lost in data - a difference measured in millions of dollars of opportunity.\nWhat You’ll Do\nBuild Exceptional User Experiences: Design and implement elegant, high-performance React components that make complex AI insights feel simple and actionable\nArchitect for Scale: Own critical parts of our frontend architecture as we grow from hundreds to thousands of daily active users across Fortune 500 enterprises\nCollaborate Cross-Functionally: Partner with product managers, designers, and AI engineers to translate sophisticated analytical outputs into intuitive visualizations and workflows\nDrive Frontend Excellence: Establish coding standards, conduct rigorous code reviews, and mentor team members on modern frontend best practices\nOptimize Performance: Ensure sub-second load times and smooth interactions even when rendering complex data visualizations and real-time updates\nChampion User-Centric Design: Work closely with UX/UI designers to implement pixel-perfect designs while advocating for usability and accessibility\nOwn Feature Development: Take features from concept to production, including requirements gathering, technical design, implementation, testing, and deployment\nEnable AI Interaction: Build innovative interfaces for users to interact with agentic AI systems, including natural language inputs, conversational flows, and transparent reasoning displays\nEnsure Quality & Reliability: Write comprehensive tests, debug across browsers and devices, and maintain high code quality standards for enterprise customers\nShape Product Direction: Contribute to product strategy discussions, bringing frontend expertise to inform what we build and how we build it\nCore Requirements\nExperience\n6-10+ years of professional frontend development experience\n\n4+ years building complex, production web applications with modern JavaScript frameworks\n\n2+ years with React in production environments\n\nExperience working in fast-paced startup or high-growth product environments\n\nTrack record of owning significant frontend features end-to-end\n\nTechnical Skills\nFrontend Fundamentals\nExpert-level knowledge of HTML5, CSS3, and modern JavaScript (ES6+)\n\nDeep understanding of TypeScript and type-safe development practices\n\nStrong command of responsive design principles and cross-browser compatibility\n\nExpertise in web performance optimization techniques (lazy loading, code splitting, caching)\n\nReact Ecosystem\nAdvanced React proficiency including hooks, context, and component lifecycle\n\nExperience with state management solutions (Redux, Zustand, or similar)\n\nKnowledge of React ecosystem tools (React Router, React Query, etc.)\n\nUnderstanding of React performance optimization and rendering patterns\n\nModern Development Practices\nStrong expertise in modern CSS approaches (CSS Modules, Styled Components, Tailwind, or similar)\n\nProficient with build tools and bundlers (Vite, Webpack, or similar)\n\nExperience with version control (Git) and collaborative development workflows\n\nFamiliarity with CI/CD pipelines and automated testing frameworks\n\nAPI Integration & Data Handling\nExperience integrating RESTful APIs and GraphQL endpoints\n\nUnderstanding of asynchronous JavaScript and promise-based workflows\n\nAbility to handle complex data transformations and state management\n\nExperience with WebSocket or real-time data streaming\n\nTesting & Quality\nProficiency with testing frameworks (Jest, React Testing Library, Cypress, or similar)\n\nExperience writing unit, integration, and end-to-end tests\n\nUnderstanding of test-driven development practices\n\nStrong debugging skills across browsers and devices\n\nData Visualization\nExperience building interactive data visualizations (D3.js, Recharts, Chart.js, or similar)\n\nAbility to translate complex datasets into clear, compelling visual stories\n\nUnderstanding of visualization best practices and accessibility\n\nProfessional Qualities\nOwnership Mentality: Track record of taking full ownership of features and seeing them through to successful production deployment\nProduct Thinking: Strong product sense with ability to balance technical constraints with user needs and business objectives\nClear Communicator: Excellent written and verbal communication skills; comfortable explaining technical concepts to non-technical stakeholders\nCollaborative Spirit: Thrives in cross-functional environments, working closely with designers, product managers, and backend engineers\nDetail-Oriented: Obsessive attention to detail in implementation, from pixel-perfect designs to edge case handling\nUser Advocate: Passionate about building experiences that users love; consistently thinks from the user’s perspective\nStrategic Thinker: Ability to balance immediate feature delivery with long-term architectural decisions\nGrowth Mindset: Continuous learner who stays current with frontend technologies and best practices; eager to experiment with new tools\nPragmatic Problem Solver: Strong debugging and problem-solving skills; comfortable working through ambiguous requirements\nQuality Champion: Committed to writing clean, maintainable, well-documented code that your teammates will thank you for\nThe Frontend Challenge\nAt Merciv, you’ll tackle unique challenges at the intersection of AI, data visualization, and enterprise UX:\nComplex Data Visualization: Transform millions of consumer signals into intuitive, interactive visualizations that reveal patterns and insights at a glance\nAI Transparency: Build interfaces that make AI reasoning transparent and trustworthy, showing users exactly how conclusions were reached\nReal-Time Intelligence: Handle streaming updates and real-time data while maintaining smooth, responsive user experiences\nInformation Density: Balance information density with clarity - users need comprehensive insights without cognitive overload\nDiverse User Personas: Design for everyone from Fortune 500 executives needing high-level summaries to analysts requiring deep-dive capabilities\nPerformance at Scale: Ensure instant load times and smooth interactions even with complex datasets and visualizations\nEnterprise Standards: Meet accessibility (WCAG), security, and compliance requirements expected by Fortune 500 customers\nRapid Innovation: Ship new features quickly while maintaining code quality and user experience consistency\nNice-to-Have Skills\nExperience building data-intensive or analytics-focused applications\n\nFamiliarity with AI/ML user interfaces or conversational UI patterns\n\nBackground in design systems and component library development\n\nExperience with Next.js or other React meta-frameworks\n\nKnowledge of backend technologies (Node.js, Python) for better full-stack collaboration\n\nExperience with Figma or other design tools for design-development collaboration\n\nFamiliarity with accessibility best practices and ARIA standards\n\nExperience with micro-frontend architectures or module federation\n\nUnderstanding of WebGL or advanced graphics for data visualization\n\nBackground in consumer research, market intelligence, or retail/CPG domains\n\nExperience with A/B testing frameworks and feature flag systems\n\nKnowledge of web analytics and user behavior tracking\n\nExperience scaling frontend applications from early-stage to enterprise\n\nWhat We’re Looking For\nCraftsperson Mindset: You take pride in writing beautiful, maintainable code and building polished user experiences\nInitiative & Drive: You don’t wait to be told what to do; you see problems and solve them proactively\nUser Empathy: You deeply understand that behind every click is a person trying to accomplish something important\nTechnical Curiosity: You stay excited about new frontend technologies and love learning from teammates\nBias Toward Action: You move quickly, iterate based on feedback, and aren’t afraid to ship and learn\nHumility & Collaboration: You value diverse perspectives, give and receive feedback gracefully, and elevate your teammates\nBusiness Awareness: You understand how your work connects to business outcomes and customer value\nAdaptability: You thrive in ambiguity and can pivot quic...","description_format":"text","description_chars":14962,"description_truncated":true,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Market Research"],"lifecycle":[{"event":"open","at":"2026-09-12T02:44:29Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"Filed H-1B visas in the last two years","filings_12m":0,"filings_prev_12m":1,"green_card_filings_12m":0,"median_offered_wage_usd":null,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)"],"filings_for_role_12m":0}],"liveness":{"score":8,"band":"cold","label":"Long shot","p_open":1,"p_active":0.286,"p_room":0.28,"age_days":247,"expected_fill_days":36,"reasons":["conf:0","win:tail","crowd:"],"computed_at":"2026-11-05T05:54:30Z"},"pay":{"stated_usd_annual":200000,"is_top_pay":true},"html_url":"https://alion.io/job/merciv-senior-frontend-engineer","json_url":"https://alion.io/job/merciv-senior-frontend-engineer.json","meta":{"generated_at":"2026-11-05T13:26:11Z","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":17413,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-06T00:00:00Z"}},"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":679384},"rest":"https://alion.io/mcp/rest/get_company?id=679384"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmerciv-senior-frontend-engineer"},{"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%2Fmerciv-senior-frontend-engineer"},{"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%2Fmerciv-senior-frontend-engineer"},{"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/merciv-senior-frontend-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmerciv-senior-frontend-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":788955}},{"tool":"search_jobs","arguments":{"company":"merciv.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":788955},"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); 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