DELHI · FULLTIME
Fullstack Engineer - Senior
Spark Eighteen
Delhi · onsite · Posted 67d ago
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Not disclosed6–8 yrsfulltimeDelhi
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Section · 01
About this role
We are seeking a Full Stack Engineer with 6+ years of hands-on experience in building production web applications. The ideal candidate will have strong expertise in React, TypeScript, Node.js, and PostgreSQL, along with experience in scalable UI development, backend services, APIs, cloud platforms, and CI/CD. You will work closely with engineering teams to build and deliver reliable, scalable features across the stack while contributing to AI/LLM integrations, testing, deployments, and production troubleshooting.
Requirements
Requirements
- 6+ years of experience building production web applications, with frontend as the primary strength and solid backend experience.
- Strong proficiency in React, TypeScript, and Node.js, with experience building and shipping features independently across the stack.
- Experience with modern frontend development, including state management, API integration, form validation, responsive UI, and component/design systems.
- Strong backend experience with NestJS/Express/Fastify, PostgreSQL, ORM tools, and database migrations.
- Experience with authentication, authorization, and role-based access control.
- Hands-on experience integrating LLMs into production applications, including prompts, function calling, streaming, and basic retrieval concepts.
- Working knowledge of AWS, Docker, CI/CD, and Infrastructure-as-Code, with the ability to troubleshoot production issues and deployments.
- Comfortable working in monorepos and writing automated tests as part of development.
- Comprehensive insurance coverage that gives you peace of mind, so you can focus on doing your best work
- Flexible work arrangements designed to support sustained productivity, personal well-being, and work-life balance
- Continuous learning and accelerated skill development through hands-on projects and mentorship from experienced industry leaders
- Global client exposure across 20+ countries, offering real-world experience with diverse markets and business environments.
- Opportunity to work on high-impact, large-scale projects that have collectively generated over $1B in measurable business value
- Competitive, market-aligned compensation packages that recognize performance, expertise, and long-term contribution
- Monthly demo days that celebrate innovation, showcase your work, and give you a real voice in what we build
- Annual recognition programs and performance-driven awards in a truly meritocratic environment
- Referral bonuses that reward you for helping grow a strong, like-minded team
- A strong problem-solving culture with opportunities to tackle meaningful, real-world challenges
- A positive, people-first workplace that supports happiness, balance, and long-term growth
Sourced from foundit
Section · 02
Skills
DockerPostgresqlnestjsamazon web servicesinfrastructure as codeExpress.jsFastifyorm toolsNode.JsTypescriptReact.JsCi/Cd
Section · Company
About Spark Eighteen
Spark Eighteen
Software Product
51
employees
2011
15 years old
New Delhi, Delhi
India
₹8.2L PA avg
Avg at Spark Eighteen
About
Founded over 12 years ago with a simple belief: every ambitious vision deserves world-class technical execution. We started Spark Eighteen because we saw too many brilliant ideas fail not from lack of vision, but from inadequate technical partnership.Since our bootstrapped beginning, we've grown into the go-to technology partner for companies that think beyond just building—they build to scale, build to exit, build to transform entire industries. We've contributed over $1 billion in revenue to our clients' products and helped orchestrate successful acquisitions including Live Objects to Zuora and Glide Health to McKesson.We serve three core customer types: early-stage startups needing rapid MVP-to-market execution, growth companies scaling from Series A to acquisition, and Fortune 500 enterprises driving digital transformation. Whether it's a healthcare startup revolutionizing patient care or a fintech company reshaping financial services, we become their strategic technical co-founder—minus the equity.What sets us apart? We don't chase contracts—we build relationships. Our quality-first development philosophy means we're obsessed with creating architectures that don't just work today, but attract partnerships tomorrow. We've learned that sustainable success comes from genuine partnership, not vendor relationships.As a profitable, bootstrapped company, we've maintained our startup agility while building enterprise-grade solutions. Our team brings a global perspective from building across 20+ countries, yet we stay true to our core belief: the best technology partnerships feel less like outsourcing and more like adding the perfect technical co-founder to your team.Every partnership begins with a 2-week proof-of-concept because we believe the right technical partner can make the difference between a good product and an acquisition target.
Industries
Software ProductIT Services & Consulting
Employee ratings
10 reviews
4.2/ 5
Culture
3.0
Career growth
2.9
Work-life
3.2
Employees rate it well for
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