Python Developer

Apptoza Inc.; Toronto; On-site; CAD 120,000 - 180,000; Full time

Job summary

Apptoza Inc. in Toronto seeks a senior Forward Deployed Engineer who blends production-grade software engineering, data engineering, AI application development, and client-facing consulting.

You will embed with business users, SMEs, product owners and engineering teams to understand workflows, validate solutions with real data, remove blockers, and drive delivery from prototype to production, stabilization and handover.

Qualifications

• Embed with client stakeholders to map workflows, data, constraints, and decision points.
• Profile client data using Python, PySpark, and SQL for quality, coverage, and feasibility.
• Design, develop and deploy enterprise AI/data applications with Python, PySpark, SQL, REST APIs, FastAPI, and cloud platforms.
• Operationalize MLOps/LLMOps including deployment, monitoring, rollback, and production support.
• Strong knowledge of ETL/ELT, batch/streaming pipelines, data quality, metadata and observability.

Responsibilities

• Embed with client SMEs, product owners, business users, and engineers to map workflows and data.
• Agree on first useful release, measurable success criteria, and a practical roadmap to production.
• Profile client data to assess coverage, volumes and edge cases.
• Build small working solutions using real client data and APIs and iterate to production.
• Design and deploy AI/data applications on cloud data platforms and APIs.
• Build AI copilots and workflows using prompt engineering, RAG and vector databases.
• Design batch, real-time and streaming pipelines across enterprise systems.
• Implement MLOps/LLMOps capabilities including CI/CD and monitoring.
• Create evaluation datasets, measure model quality and perform error analysis.
• Resolve data-access, API, identity, security and deployment blockers with client teams.
• Own post go-live monitoring and production support.

Skills

Client-facing

Communication

Problem solving

Requirements translation

Education

Bachelor's degree in a relevant discipline

Tools

Python

PySpark

SQL

REST APIs

FastAPI

Git

Docker

Kubernetes

Airflow

MLflow

CI/CD

Claude

RAG

vector databases

Job description

Location: Toronto, ON

Requirement: Immediate

The opportunity

We are looking for a senior Forward Deployed Engineer who combines production-grade software engineering, data engineering, AI application development, and client-facing consulting. You will embed with business users, client SMEs, product owners, and engineering teams to understand complex workflows, rapidly validate solutions using real data, remove technical blockers, and own delivery through production launch, stabilization, adoption, and handover.

What you will do

• Embed with client SMEs, product owners, business users, and engineers to map workflows, users, data, constraints, and decision points.
• Agree on the first useful release, measurable success criteria, and a practical roadmap from prototype to production.
• Profile unfamiliar client data using Python, pandas, PySpark, and SQL to assess coverage, quality, volumes, distributions, edge cases, and feasibility.
• Build thin working solutions using real client data and APIs, validate them with users, and iteratively harden them for production.
• Design, develop, and deploy enterprise AI and data applications using Python, PySpark, SQL, REST APIs, FastAPI, and cloud data platforms.
• Build Claude-powered applications, copilots, and AI workflows using prompt engineering, RAG, vector databases, semantic search, and agentic AI patterns.
• Design batch, real-time, and streaming data pipelines and integrations across enterprise systems.
• Implement MLOps/LLMOps capabilities, including lifecycle management, CI/CD, MLflow, monitoring, deployment automation, rollback, and production support.
• Create evaluation datasets with client SMEs, measure model and LLM quality, perform structured error analysis, and prioritize improvements.
• Resolve data-access, API, identity, network, security, infrastructure, and deployment blockers with client teams.
• Own post-go-live monitoring, incident diagnosis, rollback, stabilization, latency, performance, reliability, and cost optimization.
• Measure adoption and business impact using agreed KPIs, then complete structured handover with runbooks, support ownership, and knowledge transfer.

What you bring

• 10+ years of experience in data engineering, AI application development, cloud data platforms, and production software engineering.
• Strong hands-on expertise in Python, PySpark, SQL, REST APIs, FastAPI, Git, Docker, Kubernetes, Airflow, MLflow, CI/CD, and distributed processing.
• Experience with Claude, prompt engineering, RAG, vector databases, semantic search, and agentic AI patterns.
• Strong knowledge of ETL/ELT, batch and streaming pipelines, data quality, metadata, lineage, observability, and DataOps.
• Experience operationalizing MLOps/LLMOps, including model lifecycle management, automated deployment, monitoring, rollback, and production support.
• Knowledge of enterprise cloud services across compute, storage, integration, orchestration, networking, monitoring, security, and cost optimization.
• Understanding of IAM/RBAC, encryption, secrets management, privacy controls, auditability, compliance, and secure data access.
• Ability to translate business requirements into scalable designs, define non-functional requirements, estimate effort, and drive implementation.
• BFSI experience and strong client-facing skills across discovery, rapid prototyping, solution shaping, workshops, and technical presentations.
• Bachelor's degree in a relevant discipline. Cloud, Kubernetes, AI engineering, MLOps, data engineering, architecture, or security certifications are preferred.