João Oliveira
About Experience Skills Projects Contact
Open to work · UK & EU remote

João Oliveira

Senior Support & Integrations Engineer
Data Workflows, API Integrations and Customer Support

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01

About

I specialize in enterprise ATS integrations, combining technical support with software engineering to troubleshoot APIs, job feeds, and data pipelines.

I also perform accessibility audits and reviews based on WCAG 2.0 and build Python and Go tools that automate operations and improve reliability.

I enjoy reading - if you're interested, check out my virtual bookshelf! 💖📖

Based in UK · EU citizen · Open to remote opportunities

02

Skills

Integrations 🧩
REST APIs SFTP / XML / JSON feeds ATS systems ETL / ELT pipelines
Programming 👨‍💻
Python Golang JavaScript Node.js
Automation 🤖
Internal tooling Dashboards Monitoring systems Data workflows
Platforms 🌐
Docker Git JIRA SQL CMS systems
Support Excellence ⭐
Tier 2/3 escalations Root-cause analysis Client training Cross-functional collaboration
Languages 🗣️
Portuguese - native Spanish - C2 English - C2 French - B1
03

Experience

Apr 2025 - Present
Radancy · Remote

Senior Software Support

  • Acted as a Senior Software Support Specialist at Radancy, leading complex integrations and resolving advanced support cases involving ATS APIs and the Radancy CMS.
    • Led Vinci integration with UKG and TalentSoft ATS
    • Monitoring and escalation of 5 of the Top 25 clients feeds, among others
    • Handled complex S1 (highest urgency) support cases relating to integration and careers site issues
  • Led advanced ATS API and CMS integration troubleshooting for enterprise clients managing 50,000+ job postings, maintaining 98% customer satisfaction.
  • Designed and built an internal ETL prototype using Python and Golang to automate data ingestion and transformation workflows.
    • This was done as a proof of concept for a very custom solution for a Top 25 client
    • The goal was to deduplicate a specific field from the ATS API from 4 language instances
    • For more details on this and for the sample source code visit: My GitHub
  • Mentor and train new hires on complex technical workflows, API integrations, and internal tooling.
    • In particular teams based offshore in India. Had the opportunity to train at least 10 team members in the last 2 years
  • Manage business-critical client portfolios, ensuring technical stability and high service levels across integrations.
Apr 2020 - Apr 2025
Radancy · Remote

Software Support

  • Delivered advanced support and implementation for XML/SFTP job feeds, JSON APIs, and CMS content pipelines.
    • Handled quite a few main accounts: IKEA, Vinci, Munich Re, Primark, Sanofi and was responsible for the smooth flow of jobs from feeds to the careers site as well as the management of projects related to changes to the careers site pages.
  • Built internal automation scripts in Python to streamline reporting and monitoring tasks.
    • An example project was Sentinel. Allowed our team to run automatic reports leveraging the internal Jobs Admin API which reduced manual workload relating to daily checks and re-mappings of failed jobs.
  • Collaborated with engineering, product, and digital teams to diagnose, reproduce, and resolve high-impact issues.
  • Provided product and technical consultations to clients, improving integration reliability and user experience.
    • In particular related to ATS integrations architecture and internal processing logic, as well as the best way to do so in a maintainable and scalable way.
Apr 2018 - Apr 2020
Crownpeak · London (Hybrid)

Software Support

  • Developed Python automation tools to generate client reports and optimize QA workflows.
  • Created custom dashboards using web data crawlers to support sales demos and client reporting.
  • Contributed to API documentation updates and product improvement initiatives.
  • Delivered WCAG (2.0) and SEO training sessions for enterprise clients.
Apr 2015 - Apr 2018
Actionstep · London

Software Support

  • Provided technical support and configuration for SaaS law practice management systems.
  • Developed and customized workflows, document templates, and data imports using PHP, JavaScript, and CSS.
  • Assisted clients with API integrations, authentication setup, and endpoint testing.
  • Acted as liaison between clients and development, translating business requirements into actionable technical feedback.
04

Projects

Internal tool · API gateway + dashboard

Sentinel

A Go API gateway in front of Radancy's JobsAdmin platform, paired with a Vue 3 front end. Gives the support team a live, single-dashboard view of client feeds, facets, and search config across every region - replacing manual API calls with one interface.

Go · Gin Vue 3 REST API
Internal tool · monitoring service

SFTP Feed Monitor

A Go service that walks every client's SFTP job feed on a schedule, flags files that haven't updated within 24 hours, and pushes alerts through an internal email service - catching silent feed failures before clients ever notice.

Go Postgres / GORM SFTP