Job Details

Senior IT Engineer – SaaS Systems and API Integrations

About The Role

We are seeking a highly skilled and experienced Senior Engineer with expertise in SaaS systems and complex API integration to join our dynamic Sigma IT Engineering team. This role is responsible for designing, implementing, and maintaining integrations between various SaaS platforms and internal systems to ensure seamless data flow and process automation across the Enterprise SaaS applications. The ideal candidate will have a strong background in SaaS application management, API integrations, and building automation frameworks with a deep understanding of security, scalability, and reliability. This role requires deep technical knowledge, strategic thinking, and the ability to coordinate between internal teams and third‑party vendors to ensure seamless IT operations.

Responsibilities

• Design, implement, and maintain integrations between SaaS ERP, CRM systems (e.g., Salesforce, Workday, Okta, Slack, Atlassian, NetSuite, etc.) and internal applications.
• Develop and manage APIs, webhooks, and middleware connectors using integration platforms or custom code.
• Collaborate with cross‑functional teams (Security, DevOps, Finance, HR, etc.) to identify integration requirements and deliver robust solutions.
• Manage lifecycle of SaaS applications including onboarding, configuration, SSO integration, and offboarding.
• Ensure integrations are secure, compliant, and scalable in line with IT governance policies and security standards.
• Evaluate and select appropriate technologies, tools, and platforms for integration and scalability.
• Monitor system health and performance, troubleshoot issues, and optimize data flows between applications.
• Efficiently handle day‑to‑day IT Operation tickets while also ensuring the stability, security, and performance of systems, networks, and SaaS platforms.
• Troubleshoot and resolve users technical issues via ticketing system, chat, phone, or in person.
• Develop and maintain documentation for system architecture, integration points, and support procedures.
• Mentor engineers and provide technical leadership on key projects.

Qualifications

• Bachelor's degree in Computer Science, Information Systems, or related field.
• 5+ years of experience with SaaS systems administration, Access management, API Integrations, Source Code Management Tools (e.g., GitHub, Bitbucket, etc.)
• Expert level experience on API Development on Studio IDE, ETL, Middleware or iPaaS Platforms (e.g., Dell Boomi, Workato, MuleSoft, Informatica, etc.)
• Strong hands‑on experience with Webservices, RESTful APIs, JSON, OAuth, OIDC and Webhooks.
• Strong experience with scripting and writing automation (e.g., RAML, YAML, Python, JavaScript, PowerShell, etc.).
• Knowledge of ITSM, IAM tools (e.g., Jira), identity systems (e.g., Okta), and cloud platforms (e.g., AWS, GCP).
• Excellent problem‑solving skills and the ability to manage multiple projects.
• Experience in a fast‑paced, cloud‑native, SaaS‑first environment.
• Experience working with enterprise data integrations involving HRIS, finance, ERP, or IAM systems.
• Strong communication, Systems Architecture and documentation abilities.

Compensation and Benefits

Base salary range for this position is $150k–$180k annually. Compensation may vary depending on qualifications. The role is eligible for stock options and a comprehensive benefits package.

• Equity
• Generous health benefits
• Flexible time off policy
• Paid bonding time for all new parents
• Traditional and Roth 401(k)
• Commuter and FSA benefits
• Lunch Program
• Dog friendly office

Sigma Computing is an equal opportunity employer. We are committed to building a smart and strong team regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or expression, or veteran status. We look forward to learning how your experience can enable all of us to grow. Note: We have an in‑office work environment in all our offices in SF, NYC, and London.