674,433open jobs
39,075companies
102,188added this week
Browse all
Salary
$26k – $64k per year (Estimated)
Location
In office (Johannesburg)
Seniority
Senior
Employment
Full-Time
Overview
Company
Impact
Profile match
Job Mail is a South African online job board offering a large selection of vacancies across the country and some positions abroad. Job seekers can search and apply for jobs online, upload a CV and receive job alerts, while employers and recruitment agencies can advertise positions to a broad national audience. The brand is one of the longer-established names in South African job advertising and is operated from South Africa.

You'll work at the core of our clients product, designing, developing and fine-tuning intelligent voice and chat experiences, while helping scale client-specific AI agent deployments as our customer portfolio grows.

If you're passionate about LLMs, conversational AI, speech technologies and production-ready AI systems, we'd love to hear from you.

What You'll Be Doing:

  • Design, build and optimise production AI voice and text agents
  • Develop and refine dialogue flows, prompt frameworks and evaluation systems
  • Improve speech-to-text (STT) and text-to-speech (TTS) pipelines for performance, quality and accuracy
  • Build, test and deploy conversational text bots and campaign variants
  • Own the configuration and optimisation of client-specific AI agent implementations
  • Develop scalable integrations using APIs and backend services
  • Monitor, evaluate and continuously improve AI performance in production environments
  • Collaborate with product, engineering and client-facing teams to deliver best-in-class conversational experiences
  • Contribute to AI engineering standards, best practices and technical direction

Essential Skills & Experience:

  • Proven experience building and deploying LLM-powered voice and/or text applications
  • Strong software engineering skills with Python
  • Experience developing and maintaining production-scale systems
  • Solid understanding of prompt engineering, evaluation frameworks and AI quality measurement
  • Experience integrating and managing APIs
  • Strong version control practices using GitHub
  • Ability to work independently and take ownership of complex technical deliverables
  • Strong problem-solving and debugging capabilities

What We're Looking For:

  • A senior engineer who enjoys building rather than managing
  • Someone comfortable working in fast-paced, product-driven environments
  • A technically curious individual who stays up to date with advancements in AI and LLM technologies
  • A collaborative team player with strong communication skills
  • A hands-on problem-solver who can take ownership from concept through to production
Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
674,433 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Similar stack
Same company
Johannesburg
$117k – $181k per year • In office • Full-Time • 5+ years exp • Bachelor's Degree • Austin
Python
JavaScript
TypeScript
C#
Databases
MySQL
PostgreSQL
Redis
AI/ML
Prompt Engineering
AI Agents
Anthropic SDK
LLM
OpenAI
Agentic Workflows
Frontend
React.js
DevOps
Rest API
GCP
Azure
CI/CD
Git
AWS
Management
Agile
Apply
$80k – $161k per year (Estimated) • In office • Secret • Full-Time • 6+ years exp • Bachelor's Degree • Tysons
Python
SQL
Databases
Databricks
DevOps
Azure
AWS
Analytics
Power BI
ETL/ELT
Management
Power Automate
Power Apps
Agile
Apply
Data Scientist 2 hours ago
$65k – $108k per year • In office • Public Trust • Full-Time • 1+ year exp • Bachelor's Degree • Baltimore
Python
MATLAB
AI/ML
NLP
TensorFlow
PyTorch
Time Series Forecasting
OpenAI
Hugging Face
DevOps
Azure
AWS
Apply
Systems Engineer III 2 hours ago
$45k – $123k per year (Estimated) • In office • Full-Time • London
Python
Bash
DevOps
Terraform
GCP
New Relic
CloudFormation
Azure
CI/CD
AWS
Docker
Kubernetes
Incident Management
Apply
$79k – $131k per year • In office • Full-Time • Chicago
AI/ML
LLM
Analytics
Tableau
Apply
Project Manager 2 hours ago
$52k – $59k per year • In office • Contractor • 8+ years exp
Management
Microsoft Project
Apply
Payroll Administrator 2 hours ago
up to $26k per year • In office • Full-Time • 3+ years exp
Analytics
Microsoft Excel
Apply
$11k – $15k per year • In office • Full-Time
Analytics
Microsoft Excel
Management
Outlook
Apply
$15k – $22k per year • In office • Full-Time • Johannesburg
Apply
Technical Writer 2 hours ago
$29k – $43k per year • Remote/Hybrid • Full-Time • Stellenbosch
Management
Confluence
Notion
Jira
Draw.io
Agile
Scrum
Apply
Platform Engineer 1 day ago
$46k – $112k per year (Estimated) • Remote • Full-Time • 7+ years exp • Johannesburg • Nairobi • Cape Town • London
DevOps
GCP
VMWare
Docker
Kubernetes
KVM
Hyper-V
IAM
Apply
$17k – $37k per year (Estimated) • Equity • Remote • Full-Time • 5+ years exp • Johannesburg
Apply
$21k – $53k per year (Estimated) • In office • Full-Time • 7+ years exp • Bachelor's Degree • Johannesburg
Marketing
Salesforce
Apply
$25k – $52k per year (Estimated) • Equity • Remote/Hybrid • Full-Time • 7+ years exp • Master's Degree • Cape Town • Johannesburg
Management
Miro
Jira
Agile
Scrum
Kanban
Apply
$15k – $45k per year (Estimated) • Equity • In office • Internship • Johannesburg
Apply
See all jobs
This is one of many
674,433 more open roles from verified company boards, updated every day.