Billing & Operational Control Officer

About MoOngy

Founded in 2005, MoOngy is an international group specialized in Engineering and IT, operating across Europe and North Africa.

With a presence in 14 countries, more than 40 entities, and 9,500 talents, we continue to grow every day thanks to one simple thing: people who are genuinely passionate about technology and innovation.

The Role: Billing & Operational Control Officer

Location: Lisbon

Work Model: Hybrid (2x per week at the office)

️ Languages: English (Mandatory) French and Spanish (Nice to have)

Eligibility: Currently living in Portugal and legally authorized to work there

Mission

Ensure the accurate and efficient execution of operational processes supporting invoicing, guaranteeing that services are properly recorded, validated, and billed in compliance with deadlines and internal and client requirements.

Your Profile

• +3 years of proven experience in a similar role
• High level of accuracy and attention to detail
• Strong organizational and prioritization skills
• Good analytical skills
• Strong communication with different stakeholders
• Proficiency in ERP systems, Excel, and Power BI
• Knowledge of invoicing processes
• English is mandatory French or Spanish (preferred)
• Degree in Economics, Management, or a related field

Responsibilities

Time, Project & Consumption Control

• Ensure proper allocation of consultants and accurate time tracking
• Monitor and correct inconsistencies or deviations
• Validate and consolidate monthly consumption
• Ensure data reliability for invoicing purposes

Client Onboarding & Evaluation

• Validate documentation and ensure legal and tax compliance
• Assess financial risk and commercial conditions
• Liaise with commercial teams

Purchase Orders & Invoicing Management

• Register, validate, and monitor purchase orders
• Ensure alignment between contracts and delivered services
• Prepare, validate, and issue invoices within defined deadlines
• Monitor invoice reception and manage adjustments
• Produce regular reporting

Why Join Us?

• Innovation & Impact: Play a central role in driving the future through creative solutions
• Challenging projects: Modern environments, real impact, zero boredom.
• Continuous learning: Trainings, certifications, and structured career growth.
• Team spirit: An international community where collaboration means something.
• Diversity & inclusion: At MoOngy, everyone belongs - no fine print.

Diversity & Inclusion

At MoOngy Group, we are committed to equality and diversity. We foster a safe, inclusive, and respectful environment where everyone has equal opportunities.

We do not discriminate based on age, origin, gender, sexual orientation, disability, or any criterion unrelated to skills and merit.