Job Description

Are you interested in working with a leading education technology player, the global leader in the assessment and certification of professional skills industry with presence in more than 200 countries worldwide? If so, this is the chance to apply now!   

PeopleCert is seeking a Machine Learning Engineer who will design, fine-tune, and evaluate models that power intelligent solutions across our platforms. You will focus on applied innovation: taking foundation models and classical ML approaches and adapting them to deliver real-world value for learners, partners, and internal teams.  

As a Machine Learning Engineer, your tasks will include the following:  

• Design, fine-tune, and evaluate ML and generative AI models for enterprise and product use cases.  

• Build and maintain experimentation pipelines for training and benchmarking models.  

• Collaborate with Data Engineers to prepare and manage high-quality training datasets.  

• Work closely with MLOps Engineers to ensure models transition smoothly into production.  

• Contribute to building responsible AI by testing for bias, robustness, and explainability. 

What we look for:   

• Bachelor’s Degree in Computer Science, Engineering, or a related field; a Master’s degree or higher will be considered a plus.  

• 3 + years strong experience with ML frameworks (PyTorch, TensorFlow, Hugging Face).  

• Hands-on expertise with foundation models (LLMs, transformers, multimodal).  

• Strong programming skills in Python; familiarity with Azure ML or other cloud ML platforms.  

• Proven track record of delivering ML projects into production.  
• Excellent knowledge of English (C2 level certification desired, LanguageCert C2 LTE or C2 IESOL certificate would be a plus) Extra languages desired.
• Advanced computer literacy is required. ECDL Advance level certification is desirable.

•  Problem-solving mindset with ability to align technical solutions to business needs.  

Nice-to-Have:  

• Prompt engineering skills: ability to craft, optimize, and evaluate prompts for large language models.  

• Experience with retrieval-augmented generation (RAG) and hybrid approaches.  

• Familiarity with prompt chaining frameworks (LangChain, Semantic Kernel, etc.)  

What we offer:

• Competitive remuneration package

• Work in an international, dynamic and fun atmosphere
• Two free vouchers for all certifications from PeopleCert’s Portfolio per year for all employees
• Huge learning experience in using best practices and global environment
• Constant personal and professional development

If you want to become a member of our international, dynamic and agile team that creates world leading software products, then we should certainly like to hear from you!

About PeopleCert

PeopleCert is a global leader in assessment and certification of professional skills, partnering with multi-national organizations and government bodies for the development & delivery of standardized exams. Delivering exams across 200 countries and in 25 languages over its state-of-the-art assessment technology, PeopleCert enables professionals to boost their careers and realize their life ambitions.

Quality, Innovation, Passion, Integrity are the core values which guide everything we do.

Our offices in UK, Greece, and Cyprus boast a culture of diversity, where everyone is different, yet everyone fits in. All of us at PeopleCert are committed to the reflection of the diversity and inclusion of our customers and the communities in which we do business.

Working on Home Office (HO) Secure English Language Tests (SELTs)

Any person who is engaged by PeopleCert to work on the SELT service must undergo a Background Check (the results of which must be acceptable to PeopleCert and the HO) prior to commencing their SELT duties. All SELT personnel will be required to complete a declaration (provided by PeopleCert) where the existence of any criminal record and/or bankruptcy must be declared.

If working on the SELT service in the UK, background checks will include:

• A basic or enhanced Disclosure Barring Service (DBS) check

• Right to Work in the UK check (including nationality, identity and place of residence)

• HO security check (Baseline Personnel Security Standard (BPSS) or Counter Terrorist Check (CTC)

• Financial background check

• Employment reference check.

• If working on the SELT service anywhere in the world (outside of the UK) personnel will undergo background checks that are equivalent to those stated for the UK.

In addition, if personnel are required to speak to SELT candidates they must be appropriately skilled in English language and, where SELT services are provided anywhere in the world (outside of the UK), the official language of the relevant country.

All applications will be treated with strict confidentiality.