Senior or Staff Software Engineer

About the Role: We're hiring a strong senior IC engineer to own core projects at Writesonic. This is not a management position—it's a hands-on builder role for someone who can go deep into hard problems, ship fast, and think like a product owner from an overall business, use-case, and customer perspective. You will take vague, high-impact problems and turn them into production systems that directly move revenue and retention.

What You'll Do

• Own and ship core AI-powered product features end-to-end—from problem definition to production deployment and measurement.
• Design, build, and optimize production LLM systems including RAG pipelines, AI agents, embedding workflows, evaluation frameworks, and fine-tuning pipelines.
• Make architecture and system design decisions across backend services, databases (SQL and vector), APIs, and cloud infrastructure.
• Dive deep into the business domain (marketing, SEO, GEO, content automation) to make smart product and engineering trade-offs.
• Connect every engineering decision to user outcomes, asking "does this move revenue or retention?" before optimizing for technical elegance.
• Collaborate directly with founders and cross-functional teams, operating as a product-minded engineer rather than a spec-follower.

What You Bring

• Backend Engineering Fundamentals: Strong proficiency in Python as the primary language, with a solid grasp of system design, API design, SQL and vector databases, and cloud infrastructure.
• Production LLM Experience: 2+ years building and shipping real production systems using LLMs, RAG pipelines, agents, embeddings, evals, or fine-tuning.
• Independent Ownership: Ability to take a vague problem, define the solution, build it, and measure its impact without hand-holding.
• Domain-Diving Instinct: Willingness and ability to learn the business domain deeply enough to make smart product calls.
• Business-First Thinking: Consistently connects engineering decisions to user outcomes, revenue impact, and retention metrics.
• Bonus: Open-source contributions, experience with GEO/SEO/AI search, or founding engineer experience at an early-stage startup.

Benefits

• Work on AI products used by millions—not internal tooling or incremental features.
• Full ownership of high-impact projects from day one.
• Startup speed with real revenue and real users.
• Direct collaboration with founders who are technical and product-minded.
• Competitive compensation aligned with top-tier IC roles in India.