Finance & Invoicing Assistant - Ukraine
Oso Semiconductor
Accounting & Finance
Kyiv City, Kyiv city, Ukraine
Posted on May 10, 2026
Tetra Tech delivers solutions that help clients globally operate, invest, and compete in a rapidly evolving energy landscape. We provide front-end engineering and advisory services to businesses, utilities, governments, investors, and developers. Our capabilities span the energy value chain including utility management, power engineering and network planning, market frameworks and policy reform, on-grid and off-grid electrification, clean fuels deployment, financial due diligence and transaction support.
Project Summary
Tetra Tech is providing energy expertise and related technical and material assistance to the Government of Ukraine. This project focuses on enhancing the resilience, reliability, affordability, and security of the electricity, natural gas, and district heating sectors. The scope of work includes addressing immediate challenges and physical damage to energy infrastructure, as well as preparing for Ukraine’s post-war reconstruction and long-term energy security.
Position Summary
Tetra Tech seeks a Finance and Invoicing Assistant who will assist with all matters related to procurement and grant invoices processing and ensure that all invoices are accurate and compliant with the terms of the agreements. The Assistant will track and update progress on invoice payments and also maintain organized records of financial reviews and approvals for audit readiness and reporting purposes. This position will report to the Tetra Tech Home Office Project Operations Senior Manager. Interested candidates must be based in and eligible to work in Ukraine. This is a full-time position for the duration of the program (until April 2029) and hiring is contingent upon client approval.
Essential Job Functions
Required Qualifications
Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. Our 25,000 employees work together to provide clear solutions to complex problems by Leading with Science® to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.
Tetra Tech is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sex, marital or familial status, status as a protected veteran, or any other characteristic protected by law. Tetra Tech is a VEVRAA federal contractor and we request priority referral of veterans.
We invite applications from all interested parties.
Explore our open positions at https://www.tetratech.com/careers. Follow us on social media to learn more about our people, culture, and opportunities:
LinkedIn: @TetraTechCareers
X (Twitter): @TetraTechJobs
Additional Information
Project Summary
Tetra Tech is providing energy expertise and related technical and material assistance to the Government of Ukraine. This project focuses on enhancing the resilience, reliability, affordability, and security of the electricity, natural gas, and district heating sectors. The scope of work includes addressing immediate challenges and physical damage to energy infrastructure, as well as preparing for Ukraine’s post-war reconstruction and long-term energy security.
Position Summary
Tetra Tech seeks a Finance and Invoicing Assistant who will assist with all matters related to procurement and grant invoices processing and ensure that all invoices are accurate and compliant with the terms of the agreements. The Assistant will track and update progress on invoice payments and also maintain organized records of financial reviews and approvals for audit readiness and reporting purposes. This position will report to the Tetra Tech Home Office Project Operations Senior Manager. Interested candidates must be based in and eligible to work in Ukraine. This is a full-time position for the duration of the program (until April 2029) and hiring is contingent upon client approval.
Essential Job Functions
- Review procurement and grant invoices for accuracy, completeness, and compliance with agreement terms, budgets, and applicable regulations
- Verify supporting documentation for expenditures, ensure all costs are allowable, allocable, and reasonable under the agreement
- Collaborate with the procurement and grants teams to resolve discrepancies or clarify invoice-related questions
- Ensure all invoice documentation aligns with organizational policies and donor requirements
- Maintain organized records of financial reviews and approvals for audit readiness and reporting purposes
- Support training and capacity-building efforts for vendors and grantees on financial reporting and invoicing requirements
Required Qualifications
- Bachelor’s degree in accounting, finance, business administration or related field
- Minimum of one year of experience working in financial management, audit, or compliance
- Experience reviewing vendor invoices and audited financial statements
- Excellent analytical skills and attention to detail
- Strong communication and interpersonal skills, with the ability to work collaboratively across teams
- Ability to manage multiple priorities and meet deadlines in a fast-paced environment
- Fluency in Ukrainian and full proficiency in English
- Proficiency in the MS Suite: Word, Excel, PowerPoint, Teams
- Master’s degree in accounting, finance, business administration or related field
- Understanding of financial reporting standards
- Experience in donor-funded international projects or U.S. government–funded projects
- Knowledge of FAR and USG regulations
- Frequently remain in a stationary position sitting or standing at the desk
- Occasionally move inside the office to access file cabinets, office machinery, etc.
- Constantly operate office equipment, such as computer, copy machine, scanner or printer
- Constantly communicate information and ideas so others will understand
- Constantly observe details at close range
- Employment type: This is a full-time, fixed-term position
- Work schedule: Monday – Friday, standard core business hours (9:00 AM – 6:00 PM local time); some flexibility required but must occasionally overlap with United States eastern standard time business hours
- Work location: This position is required to be in the office for at least 60% of the weekly working time (all arrangements subject to review and may change at the company’s discretion)
- Travel requirements: N/A
- Line management responsibility: N/A
Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. Our 25,000 employees work together to provide clear solutions to complex problems by Leading with Science® to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.
Tetra Tech is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sex, marital or familial status, status as a protected veteran, or any other characteristic protected by law. Tetra Tech is a VEVRAA federal contractor and we request priority referral of veterans.
We invite applications from all interested parties.
Explore our open positions at https://www.tetratech.com/careers. Follow us on social media to learn more about our people, culture, and opportunities:
LinkedIn: @TetraTechCareers
X (Twitter): @TetraTechJobs
Additional Information
- Organization: 154 ESI


