MissionStaff
Senior Full Stack Developer
at
MissionStaff
We connect top talent in Business Services, Tech, Marketing & Creative with companies of all sizes—offering flexible, high-touch staffing solutions. We are currently filling the following direct-hire job for our client.
What You’ll Do AI Voice Orchestration (Node.js / TypeScript)
Lead development of outbound calling schedulers and orchestration services.
Build and maintain webhook handling, ElevenLabs integrations, and real-time warm-transfer notifications.
Ensure reliable, low-latency execution of voice workflows at scale.
Salesforce Integrations
Own Salesforce-backed workflows using SOQL, REST, and Composite APIs.
Design and maintain record search/update logic, authentication flows, and token management.
Partner closely with Salesforce admins to implement scalable, maintainable business logic.
Email Automation
Maintain and evolve pipelines that trigger outbound email workflows based on Salesforce updates and submission logic.
Improve reliability, observability, and performance of CRM-driven email journeys.
Reliability & Operations
Improve latency, resiliency, and fault tolerance across services.
Implement best practices for idempotency, retries/backoff, logging, monitoring, and alerting.
Own operational excellence across AWS Lambda-based services.
Architecture & Platform Ownership
Shape and evolve our event-driven AWS architecture.
Drive technical standards, design decisions, and long-term platform strategy.
Ensure systems are scalable, maintainable, and secure.
Cross-Functional Collaboration
Work closely with product, sales, operations, and Salesforce teams to translate business requirements into robust technical solutions.
Act as a trusted technical partner across the organization.
Technical Leadership
Set and uphold code quality standards.
Review high-impact changes and document systems clearly.
Mentor engineers and support hiring as the team grows.
What You Bring
5+ years of backend engineering experience owning production systems end-to-end.
Strong proficiency in Node.js/TypeScript and Python, with comfort working across both.
Hands‑on experience with AWS (Lambda, API Gateway, DynamoDB, CloudWatch).
Deep experience integrating with third‑party APIs; Salesforce (SOQL, REST, OAuth) experience is a strong plus.
Solid understanding of distributed systems, async workflows, debugging, and performance tuning.
High ownership mindset with the ability to lead and scale a mission‑critical platform.
Nice to Have
Experience with telephony or voice APIs (Twilio, ElevenLabs).
Familiarity with email systems (SendGrid, SES) and CRM‑driven automation.
Experience building real‑time systems (WebSockets, push notifications).
Prior startup or small‑team technical leadership experience.
Tech Stack AWS
Lambda
API Gateway (REST & WebSocket)
DynamoDB
S3
CloudWatch
IAM
AWS CDK (TypeScript)
Languages
TypeScript / Node.js
Python
Integrations
Salesforce (SOQL, REST, Composite, OAuth)
ElevenLabs Voice Agents
SendGrid / Resend
Architecture
Event‑driven services
Webhooks
Real‑time notifications (WebSockets)
Tooling
GitHub Actions
Electron (Windows Companion)
Secrets Management & Environment Configuration
Seniority level
Mid‑Senior level
Employment type
Full‑time
Job function
Engineering and Information Technology
Industries
Staffing and Recruiting
#J-18808-Ljbffr
at
MissionStaff
We connect top talent in Business Services, Tech, Marketing & Creative with companies of all sizes—offering flexible, high-touch staffing solutions. We are currently filling the following direct-hire job for our client.
What You’ll Do AI Voice Orchestration (Node.js / TypeScript)
Lead development of outbound calling schedulers and orchestration services.
Build and maintain webhook handling, ElevenLabs integrations, and real-time warm-transfer notifications.
Ensure reliable, low-latency execution of voice workflows at scale.
Salesforce Integrations
Own Salesforce-backed workflows using SOQL, REST, and Composite APIs.
Design and maintain record search/update logic, authentication flows, and token management.
Partner closely with Salesforce admins to implement scalable, maintainable business logic.
Email Automation
Maintain and evolve pipelines that trigger outbound email workflows based on Salesforce updates and submission logic.
Improve reliability, observability, and performance of CRM-driven email journeys.
Reliability & Operations
Improve latency, resiliency, and fault tolerance across services.
Implement best practices for idempotency, retries/backoff, logging, monitoring, and alerting.
Own operational excellence across AWS Lambda-based services.
Architecture & Platform Ownership
Shape and evolve our event-driven AWS architecture.
Drive technical standards, design decisions, and long-term platform strategy.
Ensure systems are scalable, maintainable, and secure.
Cross-Functional Collaboration
Work closely with product, sales, operations, and Salesforce teams to translate business requirements into robust technical solutions.
Act as a trusted technical partner across the organization.
Technical Leadership
Set and uphold code quality standards.
Review high-impact changes and document systems clearly.
Mentor engineers and support hiring as the team grows.
What You Bring
5+ years of backend engineering experience owning production systems end-to-end.
Strong proficiency in Node.js/TypeScript and Python, with comfort working across both.
Hands‑on experience with AWS (Lambda, API Gateway, DynamoDB, CloudWatch).
Deep experience integrating with third‑party APIs; Salesforce (SOQL, REST, OAuth) experience is a strong plus.
Solid understanding of distributed systems, async workflows, debugging, and performance tuning.
High ownership mindset with the ability to lead and scale a mission‑critical platform.
Nice to Have
Experience with telephony or voice APIs (Twilio, ElevenLabs).
Familiarity with email systems (SendGrid, SES) and CRM‑driven automation.
Experience building real‑time systems (WebSockets, push notifications).
Prior startup or small‑team technical leadership experience.
Tech Stack AWS
Lambda
API Gateway (REST & WebSocket)
DynamoDB
S3
CloudWatch
IAM
AWS CDK (TypeScript)
Languages
TypeScript / Node.js
Python
Integrations
Salesforce (SOQL, REST, Composite, OAuth)
ElevenLabs Voice Agents
SendGrid / Resend
Architecture
Event‑driven services
Webhooks
Real‑time notifications (WebSockets)
Tooling
GitHub Actions
Electron (Windows Companion)
Secrets Management & Environment Configuration
Seniority level
Mid‑Senior level
Employment type
Full‑time
Job function
Engineering and Information Technology
Industries
Staffing and Recruiting
#J-18808-Ljbffr