Senior Full-Stack Software Engineer

Doowii, Inc.; Northern (KY); Hybrid; USD 140,000 - 210,000; Full time

Job summary

Doowii, Inc. is seeking a senior technical leader to build the core systems powering the Doowii platform. This individual contributor role emphasizes architectural mastery, mentoring, and independent delivery across frontend, backend, and data layers.

You will define architecture, lead critical projects, and ensure scalable, observable infrastructure that serves diverse customers and use cases. Collaborating with ML, product, and frontend teams, you will ship AI-driven features, optimize data

Qualifications

• BS in computer engineering (or similar field) with 10+ years of experience.
• 5+ years of full-stack experience.
• Strong full-stack expertise: frontend (JavaScript/TypeScript) and backend (Python).
• Deep experience with cloud infrastructure.
• Experience with APIs and SQL.
• Experience with schema evolution, CDC, and high-throughput streaming.
• Bias for automation, documentation, and fast iteration in a startup.
• Experience with AI model/agent development and LLM evaluation.

Responsibilities

• Define architecture for core systems powering the platform.
• Lead development projects and make critical technical decisions.
• Ensure the system scales across customers, data, and use cases.
• Identify opportunities to elevate user experience.
• Mentor engineers and raise engineering standards.
• Act as a technical partner to product and leadership teams.

Skills

Full-stack experience

Frontend (JavaScript/TypeScript)

Backend (Python)

Cloud infrastructure

APIs & SQL

Data platforms/analytics

Education

BS in computer engineering or similar

Masters in computer engineering

Tools

Kafka

NiFi

Airflow

Mage.AI

Beam

Spark

Flink

dbt

Iceberg

BigQuery

Job description

About Doowii

Doowii is building a conversational analytics platform for education. We enable non-technical users to query complex datasets using natural language, accelerating decision making, data exploration, and intervention planning. Doowii sits at the intersection of data infrastructure, AI, and education.

About the Role

This individual contributor role is a technical leadership opportunity focused on building the core systems that power Doowii. Applicants must demonstrate technical mastery, architectural skills, mentoring abilities, and independence.

You’ll be tackling opportunities and projects core to the Doowii interface and backend:

• define architecture


• lead development projects and make critical technical decisions


• ensure the system scales across customers, data, and use cases


• identify opportunities to elevate user experience

What You’ll Work On

Doowii engineering is critical in the end-to-end development of the Doowii platform, applications, and systems, from designing the user interface to managing our systems and infrastructure.

Frontend & UX

• Lead development of high-impact, cross-cutting features


• Resolve ambiguous problems with incomplete information


• Partner with ML, product, and frontend engineers to ship AI-driven features (LLM text-to-SQL, embeddings, feature stores, LLM-driven data modeling)

Backend Systems

• Design scalable systems across application, data, and infrastructure layers


• Define patterns for integrations, data modeling, and performance


• Own system performance, observability, and reliability


• Improve deployment and operational workflows

Data Interaction Layer

• Guide how we structure, access, and optimize data


• Influence decisions around analytics infrastructure and AI integration


• Design and maintain data models (star, wide-table, or Iceberg-native) to support real-time and batch analytics


• Optimize storage + query performance


• Develop and maintain ingestion pipelines (NiFi 2.0 → Kafka → Iceberg → BigQuery) end-to-end

Team Impact

• Mentor engineers and raise engineering standards


• Act as a technical partner to Doowii’s product and leadership teams

Requirements

• BS in computer engineering (or similar field with 10+ years of experience)


• 5+ years of full-stack experience


• Strong full-stack expertise, covering frontend (JavaScript/TypeScript, modern frameworks) and backend skills (Python preferred)


• Deep experience with cloud infrastructure


• Experience with APIs and SQL


• Experience with schema evolution, CDC, and high-throughput streaming


• Bias for automation, clear documentation, and fast iteration in a startup environment


• Experience with AI model/agent development and LLM evaluation

Bonus points if you have:

• Masters in computer engineering


• Experience building data-heavy platforms or analytics products


• Strong product intuition and UX thinking


• Experience with performance optimization


• Hands-on with at least two of: Kafka or Pub/Sub, Apache NiFi, Airflow, Mage.AI, Beam, Spark, Flink, dbt, Iceberg/ClickHouse