Introduction

Bloomteq achieved positive outcomes by implementing strategies to streamline candidate sequencing and contact enrichment, resulting in a more efficient and personalized recruitment pipeline. Additionally, Bloomteq bolstered data security by effectively handling data ownership through a common identity service, consolidating data management, and facilitating quicker iterations across global systems. Furthermore, distributing a one-codebase application across multiple regions enabled Adecco to serve diverse markets seamlessly while reducing development time and resources.

Challenge and Scope

Adecco faced four major technical and organizational challenges across its global recruitment platform:

Challenge 1 - Streamlining Candidate Sequencing and Contact Enrichment

Effectively engaging with candidates through diverse communication channels presented a significant challenge. Coordinating sequences through email, phone, SMS, and LinkedIn while ensuring a personalized and efficient outreach strategy was time-consuming. Enriching candidate profiles with data from multiple sources placed a significant burden on recruiters.

Challenge 2 - Enhancing Candidate Pipeline Integration with ATS Systems

Adecco sought to enhance the candidate pipeline experience beyond standard market solutions, requiring seamless integration with existing ATS systems, proprietary operations management, and real-time data synchronisation back to ATS. Each ATS exposed its own API with unique complexities, ruling out any one-size-fits-all approach.

Challenge 3 - Handling Data Ownership

Managing an international system encompassing numerous entities across various databases posed the challenge of securely establishing data ownership to prevent unauthorized access and potential data breaches, while maintaining zero downtime during transition.

Challenge 4 - Distributing a One-Codebase Application Across Multiple Regions

Overseeing the legal, cultural, and functional specifications for end-user applications across various continents typically involves creating and maintaining distinct applications per region - requiring significant investment of time and resources.

Approach, Solution and Outcome

Challenge 1: Candidate Sequencing & Contact Enrichment

Approach

Bloomteq introduced a sophisticated sequence management system integrating email, phone, SMS, and LinkedIn channels, enabling recruiters to design, schedule, and track candidate interactions from a single platform.

Solution

- Developed a Chrome extension to simplify data extraction from candidates' LinkedIn profiles.

- Built CSV batch upload functionality for efficient bulk candidate submission.

- Integrated People Data Labs Pearson search API and Elasticsearch for global candidate search with advanced filters and Boolean parameters.

- Implemented WYSIWYG email editor for personalized, visually compelling communication.

- Built trigger-based automation responsive to candidate actions or inaction, ensuring timely follow-up.

- Integrated enrichment providers (People Data Labs, Rocket Reach) to surface employment history, education, contact details, and social media links.

- Implemented the World Talent Pool aggregating millions of global candidates with advanced search options.

Outcome

The platform transformed how recruiters connect with candidates, delivering a streamlined, efficient, and personalized candidate engagement process across all communication channels.

Challenge 2: ATS Integration

Approach

Bloomteq developed a decision-making tree that identifies shared characteristics among ATS systems to trigger appropriate ingress and egress operations, enabling scalable expansion of supported ATS without architectural rework.

Solution

- Built a module enabling end users to connect one or multiple ATS systems using the Merge API.

- Developed simplified onboarding tutorials for Lever, Greenhouse, Ashby, and RecruiterFlow.

- Engineered an ingress system to retrieve, deduplicate, and present ATS jobs and candidates within the product dashboard.

- Implemented webhook-based synchronisation ensuring all entity updates (candidates, applications, notes, files) are automatically reflected in the respective ATS in real time.

Outcome

Adecco gained the ability to rapidly onboard new ATS integrations based on customer demand, relieving users from ATS complexities and improving the overall candidate pipeline experience.

Challenge 3: Data Ownership & Identity Service

Approach

Bloomteq implemented a shared identity service establishing a single source of truth for all PII data, with end users granted full control over what data is exposed to system principals and potential employers.

Solution

- Built a secure API to store and provide regulated access to PII data.

- Created event-driven patterns enabling data fortification and time-series change tracking.

- Developed layered authentication patterns for system principals and end-user data ownership.

- Implemented horizontally and vertically scaled permission layers, with biometric fingerprint authentication for end users.

- Executed the production transition to the new data governance standard with zero system downtime.

Outcome

Data ownership was consolidated into a single managed location, eliminating data governance complexity for integration teams. The platform achieved heightened security through principal authentication, VPC-level access locking, and biometric authentication - facilitating faster iterations across global systems.

Challenge 4: Multi-Region Single Codebase

Approach

Bloomteq crafted a unified TypeScript-based cross-platform mobile application and backend capable of seamless deployment to both Google Play Store and Apple App Store via automated pipelines, with tenant-specific configuration driving regional customisation.

Solution

- Developed a modular cross-platform mobile application where the backend API system directs feature enablement and configuration per tenant.

- Built a global system supporting unique features, functionalities, and legal requirements as modular components.

- Designed backend API schemas and a permission system that prevents horizontal data leakage across millions of user entries.

- Centralized data repository streamlined integrations with ATS and CMS systems including Bullhorn, Lever, Ashby, and Sitecore.

Outcome

Following the initial US release, nine countries were served from a single platform. Market release iterations were achieved 2-3 times faster than traditional development approaches.

Business Impact

Bloomteq's work across all four challenge areas delivered compounding business value for Adecco: reduced recruiter time-to-engagement through automation, lower compliance risk through centralized PII governance, faster market expansion via a single-codebase multi-region strategy, and a more competitive ATS integration ecosystem. The zero-downtime production transition demonstrated the team's ability to deliver at enterprise scale without disruption to Adecco's global operations.