Senior Quantitative Risk Data Scientist, Fintech

2 days ago


Athens, Attica, Greece Optasia Full time

Optasia is a fully enabled B2B2X financial technology platform covering scoring, financial decisioning, disbursement and collection. We are committed to enabling financial inclusion for all. We are changing the world our way.

We are seeking for enthusiastic professionals, with energy, who are results driven and have can-do attitude, who want to be part of a team of likeminded individuals who are delivering solutions in an innovative and exciting environment. Senior Quantitative Risk Data Scientist are significant contributors of Optasia's advanced algorithmic trading and portfolio optimization unit. As member of the Credit Portfolio Optimization team in Optasia, you will have an opportunity to combine the disciplines of risk management, research, and technology to operate trading strategies across multiple projects. You are expected to leverage your experience and knowledge in making critical decisions in real-time processes, while working closely with experienced traders, big-data, and machine-learning engineers to ensure optimal system performance.

What you will do

  • Design and implement algorithmic solutions for revenues optimization though credit risk analysis.
  • Deliver credit-risk insights through big data risk analytics.
  • Development and implementation of portfolio risk assessment tools and procedures to monitor and manage credit risk.
  • Conduct detailed risk analysis on microloans and other financial products, optimizing risk models to improve decision-making.
  • Identify and evaluate credit risk factors using advanced computational methods on large datasets.
  • Develop predictive models, including both statistical and machine learning approaches, to support risk management strategies.
  • Collaborate closely with data scientists and data & machine learning engineers.
  • Continuously refine and improve risk assessment methodologies to align with evolving market conditions.
  • Mentor and guide junior and mid-level quants, fostering a collaborative and knowledge-sharing environment.
  • Stay current with industry trends, new technologies, and evolving methodologies to ensure best-in-class risk management practices.

What you will bring

  • Bachelor's or Master's degree in Data Science, Statistics, Finance, Mathematics, or a related field; a PhD is a plus.
  • Extensive experience (6+years) in quantitative risk analysis, with a proven track record in the financial services industry.
  • Strong expertise in algorithmic modeling and optimization techniques, with a focus on revenue and credit risk management.
  • Advanced proficiency in statistical modeling and machine learning models.
  • Strong coding skills in programming languages such as Python or R, with significant experience in big data risk analytics.
  • Proven ability to develop and implement portfolio risk assessment tools and procedures.
  • Excellent analytical, problem-solving, and decision-making skills.

Your key attributes

  • Excellent judgment and problem-solving skills
  • Self-motivated, self-directed, resourceful and in possession of a high level of personal initiative
  • Communication skills
  • Creative skills
  • Experience in working with secure code development guidelines and coding practices (i.e. OWASP, NIST)

Why you should apply
What we offer:
Flexible remote working
Competitive remuneration package
Extra day off on your birthday
Performance-based bonus scheme
Comprehensive private healthcare insurance
All the tech gear you need to work smart

Optasia's Perks:
Be a part of a multicultural working environment
Meet a very unique and promising business and industry
Gain insights for tomorrow market's foreground
A solid career path within our working family is ready for you
Continuous training and access to online training platforms
CSR activities and festive events within any possible occasion
Enjoy comfortable open space restaurant with varied meal options every day
Wellbeing activities access such as free on-site yoga classes, plus available squash court on our premises

Optasia's Values

#1 Drive to Thrive: Fully dedicated to evolving. We welcome all challenges and learning opportunities.
#2 Customer-First Mindset: We go above and beyond to meet our partners' and clients' expectations.
#3 Bridge the Gap: Knowledge is shared, information is exchanged and every opinion counts.
#4 Go-Getter Spirit: We are results oriented. We identify any shortcomings that hold us back and step up to do what's needed.
#5 Together we will do it: We are committed to supporting one another and to understanding and respecting different perspectives, as we aim to reach our common goals.



  • Athens, Attica, Greece Optasia Full time

    Optasia is a fully enabled B2B2X financial technology platform covering scoring, financial decisioning, disbursement and collection. We are committed to enabling financial inclusion for all. We are changing the world our way.We are seeking for enthusiastic professionals, with energy, who are results driven and have can-do attitude, who want to be part of a...


  • Athens, Attica, Greece Optasia Full time €90,000 - €120,000 per year

    Optasiais a fully-integrated B2B2X financial technology platform covering scoring, financial decisioning, disbursement & collection. We provide a versatile AI Platform powering financial inclusion, delivering responsible financing decision-making and driving a superior business model & strong customer experience with presence in 30 Countries anchored by 7...


  • Athens, Attica, Greece Optasia Full time €40,000 - €120,000 per year

    Optasiais a fully-integrated B2B2X financial technology platform covering scoring, financial decisioning, disbursement & collection. We provide a versatile AI Platform powering financial inclusion, delivering responsible financing decision-making and driving a superior business model & strong customer experience with presence in 30 Countries anchored by 7...


  • Athens, Attica, Greece Optasia Full time

    Optasia is a fully enabled B2B2X financial technology platform covering scoring, financial decisioning, disbursement and collection. We are committed to enabling financial inclusion for all. We are changing the world our way.We are seeking for enthusiastic professionals, with energy, who are results driven and have can-do attitude, who want to be part of a...


  • Athens, Attica, Greece B.B. Energy Full time €35,000 - €105,000 per year

    The CompanyBB Energy has a legacy spanning more than six decades. Today, the Group provides expertise across energy trading, operations, logistics, storage and retail. Our diversified portfolio cuts across many segments of the energy industry from trading crude oil and petroleum products to natural gas and renewables. With global operations anchored out of...


  • Athens, Attica, Greece QUALCO Full time €60,000 - €90,000 per year

    At Quento, the ICT arm of the Qualco Group, we deliver comprehensive and innovative solutions across AI, Digital Engineering, Cloud, and Cybersecurity, helping businesses accelerate digital transformation. With a presence in Greece, Luxembourg, and Belgium, and backed by the expertise of the Qualco Group, we combine deep technical knowledge with strategic...

  • Lead Data Scientist

    2 days ago


    Athens, Attica, Greece XM Full time €60,000 - €120,000 per year

    Lead Data Scientist – Cyprus or Greece The Role: We are seeking a Lead Data Scientist with expertise in behavioral analytics to drive data-driven strategies for client onboarding, engagement, retention, and personalization. You will analyze customer behavior, develop predictive models, and deliver insights that enhance the client journey. As a key...

  • Data Scientist

    4 days ago


    Athens, Attica, Greece Signify Technology Full time €60,000 - €90,000 per year

    Job Title: Data Scientist (Production ML Focus)Location: Greece (Remote from Greece or Hybrid Options Available)Experience Level: Mid-Senior (4+ Years)Employment Type: Full-TimeAbout The RoleMy client are highly skilled Data Scientist with a strong background in deploying machine learning models to production environments. You will play a key role in...

  • Senior Data Scientist

    2 weeks ago


    Athens, Attica, Greece WELCOME Full time €90,000 - €120,000 per year

    About usFounded in 2015 in Athens, Greece, Welcome redefines the way people travel by going above and beyond the commoditized transfer service and being the first company to deliver a complete, personalised, in-destination travel experience. From the moment a traveler arrives at a new destination, until their return journey home, Welcome accommodates all...


  • Athens, Attica, Greece HYPERTECH S.A. Full time €90,000 - €120,000 per year

    Job descriptiona-Quant (www.a-)a Hypertech S.A. subsidiary is seeking a highly motivated and talented Quantitative Investing Expert to join our Fintech QUANT team in Athens office. As a key member of our team, you will utilize your expertise in quantitative investing and trading to develop and enhance sophisticated models and systems across a variety of...