Accountant / Purchasing and Accounting Assistant

About the role

Company description:

Aistech Space is dedicated to generating affordable, recurring, and high-resolution thermal images of the planet to offer a new perspective on the evolution of Earth's resources. The company is headquartered in Barcelona and its goal is to revolutionize remote sensing applied to environmental monitoring and resource management. Our vision is summarized in one key phrase: "See the Unseen, protect what matters most on Earth"

What you'll do

What you will do:
Aistech Space is looking for a Purchasing and Accounting Assistant to join our Accounting and Finance Department at our Sant Cugat headquarters. This strategic position, with a dual focus, acts as a fundamental bridge between our Purchasing, Accounting, and Program Management teams. You will be responsible for managing the complete administrative purchasing cycle—ensuring strict alignment with project payment windows and cost accounting—as well as acting as the primary backup for our main accountant, ensuring business continuity and accounting accuracy in both general and analytical accounting.
You will work directly with suppliers, Program Managers, and the finance management to streamline invoicing, international logistics, customs clearance, and cost allocation. Additionally, you will provide support during monthly accounting closes and ensure that administrative workflows strictly comply with internal standards and financial controls.
The daily tasks of this position are:
Manage and update the internal purchasing module, processing purchase orders and tracking the receipt of materials and services.
Perform full three-way matching (purchase order + delivery note + invoice) to guarantee invoice accuracy and resolve discrepancies.
Supervise the administrative management of international shipments, processing customs documentation (DUA) and applying the appropriate Incoterms (EXW, FOB, DDP, etc.).
Act as the main liaison with Program Management to rigorously plan and meet project payment windows, ensuring the correct allocation of costs in the analytical accounting of each project.
Integrate purchasing operations into general and analytical accounting using A3 accounting software.
Provide active accounting support and act as a trusted backup for the main accountant during monthly closes, peak workloads, or temporary absences.
Maintain fluid communication with internal teams (Operations, Program Management, and Finance) to align purchasing with company budgets.
Participate actively in the documentation, improvement, and updating of administrative procedures and specification manuals.

Company Description:
Aistech Space is focused on generating affordable, recurrent, high resolution thermal imagery of the planet to provide a new perspective of Earth's changing resources. The company is based in Barcelona and aims to revolutionize remote sensing for environmental monitoring and resource management.
Our vision is focused on a key sentence: "See the Unseen, protect what matters most on Earth"
What you will do:
Aistech Space is looking for a Purchasing and Accounting Assistant to join our Accounting and Finance Department at our headquarters in Sant Cugat. This strategic, dual-focused role acts as a vital bridge between our Purchasing, Accounting, and Program Management teams.
You will be responsible for managing the complete administrative procurement cycle-ensuring strict alignment with project payment windows and cost accounting-while also serving as the primary backup for our main accountant, guaranteeing seamless business continuity and accounting precision across general and analytical accounts.
You will directly interface with suppliers, Program Managers, and financial management to streamline invoicing, international logistics, customs clearance, and cost allocation. Additionally, you will support month-end accounting closings and ensure that administrative workflows strictly adhere to internal standards and financial controls.
The daily tasks to be achieved in this position are:
Manage and update the internal purchasing module, processing purchase orders and tracking material and service receptions.
Perform comprehensive 3-way matching (Purchase Order + Delivery Note + Invoice) to ensure invoice accuracy and resolve discrepancies.
Oversee international shipping administration, managing customs documentation (DUAs) and applying appropriate Incoterms (EXW, FOB, DDP, etc.).
Act as the primary liaison with Program Management to strictly schedule and meet project payment windows, ensuring proper cost feeding into project analytical accounting.
Integrate purchasing transactions into the general and analytical accounting ledger using A3 accounting software.
Provide active accounting support and serve as a reliable backup to the main accountant during month-end closings, workload peaks, or temporary absences.
Maintain clear communication across internal teams (Operations, Program Management, and Finance) to align purchasing activities with company budgets.
Actively engage in documenting, refining, and updating administrative procedures and specification manuals.

What we're looking for

Essential:
Higher Vocational Training (FP de Grado Superior) in Administration and Finance, or a degree in Business Administration and Management, Economics, or a related field.
Between 2 and 4 years of experience (Junior-Mid profile) in accounting, finance, or purchasing administration roles, preferably in technological, industrial, or project management environments.
Solid foundation in general accounting principles and practical knowledge of analytical/cost accounting.
Practical experience with ERP or purchasing management modules, and proficiency in accounting software (knowledge of A3 or the ability to adapt quickly).
Practical knowledge of international trade management: Incoterms (EXW, FOB, DDP), customs procedures (DUA), and international invoicing.
High level of precision and attention to detail in three-way matching and cost allocation.
Excellent organizational skills, with a strong commitment to meeting strict deadlines and payment windows.
Assertive and diplomatic communication skills to coordinate effectively with suppliers, Program Managers, and finance management.
Proficiency in Microsoft Excel.
Fluent Spanish and a good level of professional English (oral and written) for dealing with international suppliers and customs management.

Who you are:
Must:
Higher Vocational Training (FP Grado Superior) in Administration & Finance, or BSc/BA in Business Administration, Economics, or relevant degree.
2 to 4 years of experience (Junior-Mid profile) in accounting, finance, or administrative procurement roles, preferably in technology, industrial, or project-based environments.
Solid foundation in general accounting principles and practical understanding of analytical/cost accounting.
Hands-on experience with ERPs or purchasing management modules, and proficiency in accounting software (A3 software knowledge or quick adaptability).
Working knowledge of international trade administration: Incoterms (EXW, FOB, DDP), customs procedures (DUA), and cross-border invoicing.
High level of accuracy and attention to detail regarding 3-way matching and cost allocation.
Exceptional organizational skills with a strong focus on meeting strict deadlines and payment windows.
Assertive and diplomatic communication skills to interface effectively between suppliers, Program Managers, and Finance leadership.
Proficient in Microsoft Excel.
Fluent in Spanish and good working command of English (written and spoken) for international suppliers and customs management.

Nice to have

Valuable:
Previous experience working with A3 accounting software.
Experience in project-oriented environments, working alongside Program Managers or Project Controllers.
Interest in developing a career towards Project Controlling or Strategic Purchasing.

Nice to have:
Direct prior experience working with A3 accounting software.
Experience in project-driven environments working alongside Program Managers or Project Controllers.
Strong interest in developing a career path towards Project Controlling or Strategic Procurement.

What you'll get

What we offer 👇😏´
🤝🏽 To be part of a passionate, collaborative, and respectful team.
💪 A permanent and stable contract in a growing company.
⏰ Flexible schedule and hybrid model: 6 days per month of remote work.
💰 Competitive salary and flexible benefits through Cobee.
🎾 Free access to padel courts and a gym on the premises.
🍎 Fresh fruit and coffee every day to recharge your energy.
🌍 An international and diverse work environment.
🌴 23 days of vacation, plus December 24th and 31st off, and your birthday.

What You'll Gain by Joining Us 👇😏
🤝🏽 Be part of a passionate, collaborative, and respectful team.
💪 Enjoy a stable, permanent contract with a fast-growing company.
⏰ Flexible working hours and hybrid work: 6 days/month from home.
💰 Competitive salary and flexible retribution through Cobee.
🎾 Free access to paddle tennis courts and an on-site gym.
🍎 Daily fresh fruit and coffee to keep you energized.
🌍 Work in an international, diverse environment.
🌴 23 vacation days, plus December 24 & 31, and birthday off.

How you'll work

Where you will work:You will work on-site at our headquarters in Sant Cugat (Barcelona). You will have 6 days per month of remote work, according to Aistech's internal policy.

Where you will be:
You will be working on-site in the headquarters offices of Sant Cugat in Barcelona. You will have an allocation of 6 days per month of remote working as per the internal policies of Aistech.´

Visa & relocation

To apply for this position, it is essential to have a valid work permit in the European Union. We cannot process work visas.
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Location:

Location: Vallsolana Garden Business Park📍 (Sant Cugat del Vallès - Barcelona)
Got something unique to bring to Aistech Space? 💥Apply today and join us in revolutionizing Earth observation! 🚀