FinTech Development Internship Program 2026 - Round 2

Mellon Group of Companies stands as a prominent multinational entity with over 9,000 employees across 14 countries, headquartered in the vibrant city of Athens, Greece. Founded in 1994, Mellon Technologies, our flagship company, delivers tailored technology solutions, contact center services, and business process outsourcing to meet the demands of financial institutions and organizations engaged in significant consumer transactions, including Retail Banks, Public Utilities, Telecommunications Providers, and major Private Companies.Embark on an exciting journey with us and ignite your career in technology!We are on the lookout for enthusiastic students eager to complete their internship within our FinTech Development Training Program at Mellon Technologies, filling various roles:Junior Software DevelopersAndroid DevelopersC/C++ Embedded DevelopersC# .NET DevelopersPython EngineersSecurity EngineersQA EngineersIf technology and programming fuel your passion, this is your chance to acquire practical experience by engaging in real-world projects, significantly enhancing your portfolio and technical skills in the realm of Software Development and FinTech applications!What You Can ExpectAn intensive 2-month training program crafted to hone your programming skills and knowledge of FinTech methodologies.Hands-on work on real-world projects, enriching your portfolio while deepening your expertise in the FinTech domain.Specialization options: C# & .NET Development or Java & Android Development.No prior experience required – we prioritize passion and motivation!A unique chance to learn from industry veterans at Mellon Technologies, acquiring practical skills that will steer your career in the tech sector.Successful interns may have the opportunity for continued collaboration within the company.

Join the esteemed Angelicoussis Group as a Summer Intern in 2026. This is a unique opportunity for students and recent graduates to gain hands-on experience within our dynamic and innovative environment. As an intern, you will collaborate with industry professionals, participate in meaningful projects, and enhance your skills in your chosen field.

About the eFood Internship Program 2026 Delivery Hero SE invites students and recent graduates to join the eFood Internship Program 2026 in Athens. Interns will work alongside experienced professionals in e-commerce and food logistics, gaining practical experience and insight into the industry. What to Expect Work on a variety of projects that build technical and business skills Collaborate with teams focused on food delivery innovation Contribute to real challenges in a supportive, inclusive setting This program offers a chance to learn directly from industry experts and develop a deeper understanding of how food delivery and e-commerce operate at scale.

As a Software Development Intern at netcompany1, you will join dynamic agile teams of highly skilled developers who are dedicated to designing, developing, deploying, customizing, and supporting innovative web and digital applications across diverse sectors such as FinTech, Betting, Insurance, Telecommunications, Utilities, Retail, EU Institutions, and Public Sector Digital Transformation.Your responsibilities will include:Collaborating with an agile team to design, develop, and maintain web applications utilizing technologies such as Java, Spring, Spring Boot, Angular, and React.Executing a wide range of programming tasks using various web and application programming technologies and languages while staying updated with emerging programming techniques.Creating and maintaining code, application libraries, technical documentation, and instructions.Engaging in peer code reviews to enhance code quality.Keeping abreast of new technologies and gaining hands-on experience with different technology stacks.

Optasia is a cutting-edge B2B2X financial technology platform specializing in scoring, financial decision-making, disbursement, and collection processes. Our mission is to foster financial inclusion globally, as we strive to transform the financial landscape in our unique way.We are on the lookout for passionate professionals who are energetic, results-oriented, and possess a proactive mindset. Join our dynamic team at Optasia, where you will contribute to delivering innovative solutions in a stimulating environment. As a member of the Solution Architecture team, your main responsibility will be to collaborate closely with clients, product management, and software development teams, showcasing your high level of technical expertise, product knowledge, and effective communication skills.Your Responsibilities:Translate business requirements into effective technology solutions utilizing Optasia’s proprietary platform.Engage with various stakeholders from clients to ensure IT solutions meet business goals.Develop technical documentation including use cases, flow diagrams, integration specifications, and solution documentation.Work collaboratively with internal teams such as Engineering, Quality Assurance, Product Management, Business, and Operations to implement innovative solutions.Assess and prototype APIs for seamless third-party integrations.Partner with the Software Architecture team to identify opportunities for enhancements to the Optasia platform.Provide technical guidance to the sales team, including product demonstrations and support for RFP responses.

Yodeck, a SaaS company based in Athens, develops digital signage solutions that help organizations communicate in creative and effective ways. The platform aims to make digital signage accessible for businesses of any size. Role overview Yodeck is attending Devoxx 2026 and is interested in meeting people who want to join the software development team. The company values curiosity, enthusiasm, and a willingness to learn. Collaboration shapes the daily work, with teams using modern technologies to build and refine the Yodeck platform. What we look for Interest in practical software development Openness to working with new technologies Appreciation for teamwork and clear communication Motivation to share ideas and learn from colleagues Next steps Those interested in software development roles at Yodeck are encouraged to connect at Devoxx 2026 or reach out directly to learn more about opportunities in Athens.

Optasia is an innovative B2B2X financial technology platform dedicated to enhancing scoring, financial decision-making, disbursement, and collection processes. We are passionate about fostering financial inclusion and transforming the world through our unique approach.We are seeking a dynamic and driven Program Manager (Revenue) to join our team and collaborate closely with the Chief Revenue Officer (CRO) to implement strategic initiatives that span the CRO organization.This role serves as an integral extension of the CRO, facilitating the definition, coordination, and execution of essential programs and projects across various regions and functions. You will be responsible for translating revenue and growth priorities into actionable initiatives, ensuring disciplined execution, and fostering alignment among stakeholders.Unlike traditional sales operations or performance management roles, this position emphasizes strategic execution and program leadership, empowering the CRO to advance priorities swiftly and transparently.This opportunity is tailored for an exceptionally organized, structured, and execution-focused professional who thrives in a fast-paced fintech environment and enjoys engaging with senior leadership.

Optasia is an innovative B2B2X financial technology platform dedicated to enhancing scoring, financial decision-making, disbursement, and collection processes. We are passionate about fostering financial inclusion globally and are on a mission to transform financial services.We are looking for energetic and enthusiastic professionals who are driven by results and possess a positive, can-do attitude. Join our team of like-minded individuals in an exciting and innovative environment. As a Software & Performance Engineer, you will play a crucial role in developing software solutions that address real-world challenges. You will be actively engaged in the full software development lifecycle, contributing to the design, coding, analysis, and documentation of application programs within the Spring Framework. Working closely with cross-functional teams, you will help evolve our products and implement modern technologies and methodologies for software development.

At Optasia, we are pioneering a transformative B2B2X financial technology platform that encompasses scoring, financial decisioning, disbursement, and collection. Our mission is to promote financial inclusion for everyone. Join us as we revolutionize the industry.Since our establishment over ten years ago, we have emerged as a global frontrunner in the fintech sector, consistently enhancing our portfolio with innovative solutions and uncovering new monetization avenues for our partners and clients.As a vital part of the Systems Engineering team at Optasia, your key responsibility will be to guarantee the stability, security, and seamless operation of our Linux-based systems. This includes managing core platforms, supporting essential services, and ensuring optimal performance across both production and staging environments.Your ResponsibilitiesAdminister and maintain Linux systems (Red Hat and Debian) across production and staging environments.Execute regular patch management, system updates, and security enhancements.Oversee and monitor system performance utilizing Nagios, Grafana, and other relevant tools.Support and maintain applications such as Passbolt, DNS, FreeIPA, Radius, Jenkins, and Red Hat Satellite.Conduct incident management, troubleshooting, and root cause analysis to secure system reliability and uptime.Engage in operations and maintenance tasks as well as system improvement initiatives.Track and manage licenses, End of Support, and End of Life for Linux assets and software.Collaborate with cross-functional teams to bolster infrastructure and authentication services.Ensure precise documentation for configurations, changes, and operational procedures.Your Qualifications3-5 years of substantial experience as a Linux Systems Engineer or Administrator.Deep understanding of Red Hat Enterprise Linux and Debian administration.Proficient in FreeIPA, DNS, and Red Hat Satellite.Familiar with Nagios, Grafana, and Radius.Strong grasp of system patching, incident management, and operations & maintenance processes.Proficient in scripting or automation (Bash, Python, Ansible).Excellent documentation, communication, and collaboration abilities.Why You Should Join UsWe Offer: Competitive salary package Additional day off on your birthday Performance-related bonus scheme All the necessary tech to work efficientlyOptasia’s Benefits: Be part of a diverse and multicultural team Engage with a unique and promising business landscape Gain insights into the future of the marketOptasia’s Core Values #1 Drive to Thrive: Fully committed to continuous evolution. We embrace challenges and learning opportunities.

Optasia is a leading, fully-integrated B2B2X financial technology platform specializing in scoring, financial decisioning, disbursement, and collection services. Our innovative AI Platform enhances financial inclusion, enabling responsible financing decisions and fostering superior business models and customer experiences across 39 countries, supported by 7 regional offices.We are seeking a dynamic and adaptable Product Manager to join our team and oversee the complete lifecycle of our fintech products. This position is perfect for individuals who excel in a fast-paced, global environment and are enthusiastic about taking charge of product strategy, execution, and commercial outcomes.You will collaborate closely with senior product leadership and cross-functional teams to spearhead product innovation, steer product roadmaps, and ensure the successful delivery and expansion of our solutions in diverse markets.

Optasia is a cutting-edge B2B2X financial technology platform specializing in scoring, financial decision-making, disbursement, and collections. Our mission is to promote financial inclusion for everyone, and we pride ourselves on transforming the world in our own unique way.We are on the lookout for passionate and proactive professionals who are driven by results and possess a can-do attitude. Join a team of like-minded individuals dedicated to delivering innovative solutions in an exciting environment.We invite you to apply for the position of Data Engineer within our expanding Data Engineering team. In this role, you will design and implement highly scalable end-to-end batch and streaming data pipelines, contributing to the overall success of Optasia.Your responsibilities will include:Enhancing the scalability, stability, accuracy, speed, and efficiency of our existing data systems.Designing and developing end-to-end data processing pipelines.Navigating a diverse technology stack, including Scala, Spark, Python3, Bash/Python scripting, Hadoop, and SQL.Designing, constructing, testing, and deploying new libraries, frameworks, or complete systems while adhering to the highest standards of testing and code quality.Developing, maintaining, and optimizing core libraries for batch processing and large volume data ingestion into our big data infrastructure.Building and maintaining CI/CD orchestration.What we expect from you:Bachelor's or Master's degree in Computer Science or Informatics.A minimum of 2 years experience in Data Engineering.Proven experience in software/data engineering and/or operations/DevOps/DataOps.Familiarity with the Apache Hadoop ecosystem (YARN, HDFS, HBase, Spark).Hands-on experience with both relational and NoSQL databases.Proficient in systems administration with Linux.Experience in deploying, configuring, and maintaining distributed systems and data/software engineering tools.Your key attributes:Experience with fluid virtual infrastructures such as containers (e.g., Docker, Kubernetes).Familiarity with data and ML flow engines and tools, such as Apache Airflow.A strong passion for learning new technologies and collaborating with other creative professionals.Why you should join us:We offer a range of benefits including: Flexible hybrid working options Competitive remuneration package An extra day off on your birthday Performance-based bonus scheme‍ Comprehensive private healthcare insurance All the tech gear you need to work efficientlyExperience the Optasia perks: Join our multicultural working environment Engage with a unique and promising business and industry Gain insights into the future market landscape Enjoy a solid career path within our working family.

Debitos is a pioneering financial technology firm and the foremost secondary market in Europe for loan trading.Utilizing our innovative auction-based online platform, banks, corporations, and investment funds can effectively sell their receivables, loans, claims, and real estate to specialized investors. Over 2000 qualified buyers engage in competitive bidding, optimizing outcomes for sellers.As we aim to expand our success story—having facilitated the trading of loans exceeding 10 billion euros—we are on the lookout for dedicated and skilled individuals. If you have strong analytical skills, exceptional numeracy, and proficiency in both English and Greek, along with some internship experience in Financial Services or Fintech, we invite you to apply as a working student (m/f) to support our team in Greece from our office located at Solonos 53. Your Responsibilities:Assist the Greek team with Business Development initiatives.Identify and engage with new prospects through regular communication, compile technical and financial proposals, and create client pitch books.Enhance brand visibility and contribute to marketing strategies for Greece and Cyprus, including preparation for conferences, development of industry-specific presentations, and drafting client communications.Support platform operations, including feature testing, translation into Greek, and client onboarding processes such as KYC and verification calls.Manage auction processes, including preparation of listings, communication with sellers and buyers, organization of data rooms, and coordination of auction activities, including NDA management and compiling post-auction reports.Gather and analyze project-related reports as well as conduct local market research and competitor analysis.

Optasia is a cutting-edge B2B2X financial technology platform focused on providing scoring, financial decisioning, disbursement, and collection services. Our mission is to promote financial inclusion for everyone. We are reshaping the financial landscape in our unique way.We are looking for passionate and energetic professionals who are results-oriented and possess a proactive mindset. Join our team of like-minded individuals dedicated to delivering innovative solutions in an exciting and dynamic environment.As an Integration Support Engineer (ISE), you will assess operational changes proposed by external systems integrated with Optasia, evaluate their technical impact, and create appropriate rollout strategies. You will also be responsible for ensuring that all new or existing projects meet the technical criteria necessary to initiate the System Integration Testing phase, collaborating closely with a Solutions Architect to ensure architectural alignment.This position is focused solely on integration readiness, excluding live production support, low-level solution design, software development, and the maintenance of test environments.Your ResponsibilitiesAssess change requests including platform upgrades, protocol migrations, and topology modifications by quantifying technical impacts and rollback risks, outlining mitigation strategies, and securing a consensus on rollout plans with both internal and external stakeholders. Engage with the Solutions Architect as needed for modifications to the solution design.Communicate configuration and development prerequisites that third-party systems must fulfill to achieve System Integration Testing readiness, collaborating directly with system owners.Conduct a targeted suite of HTTP-based API smoke tests (REST, SOAP, RPC, etc.), troubleshoot any anomalies, and escalate unresolved issues to third-party counterparts and the Solutions Architect.Develop Integration Acceptance Testing (IAT) test cases for execution by Optasia developers, guided by the Solutions Architect.Maintain transparency and traceability by updating Jira and Confluence records for change requests and SIT preparations.Foster continuous improvement by converting lessons learned into reusable templates, including change request assessments, SIT readiness checklists, and smoke test scripts, to standardize future integrations.Transition smoothly to an Associate Solution Architect role once you demonstrate proficiency in design and business insight.

Optasia is a pioneering B2B2X financial technology platform that specializes in scoring, financial decision-making, disbursement, and collection services. Our mission is to promote financial inclusion globally and transform the financial landscape.We are on the lookout for a dynamic and results-oriented Internal Audit Specialist who is energized by a fast-paced and empowering environment. This role is perfect for individuals who excel in teamwork and wish to contribute to an innovative fintech organization. Candidates should possess a solid technology and IT background with 4 to 6 years of experience in internal audit, IT audit, or technology risk management.The successful candidate will join our Risk, Compliance, and Assurance team, reporting directly to the Head of Internal Audit. You will play a critical role in assessing and enhancing the effectiveness of our internal controls, risk management practices, and various business and governance processes. Your focus will be on IT General Controls, technology platforms, integrations, IT systems lifecycle, AI/ML models, cloud infrastructure, data governance, and information security.The ideal candidate will showcase strong analytical and communication skills, capable of translating audit findings into clear, actionable insights that drive business value. Collaboration with cross-functional teams, including engineering, product, operations, compliance, and finance, will be essential to help us scale securely while upholding robust control frameworks and operational discipline.Key Responsibilities:Plan, execute, and deliver risk-based internal audits to assess the design and operational effectiveness of internal controls across operations, systems, and business processes.Draft comprehensive reports and communicate audit findings, providing actionable insights and recommendations to management.Collaborate with technology, product, risk, and compliance teams to understand systems, processes, and emerging risks.Track the implementation of audit recommendations.Assist in developing the annual audit plan.Foster a culture of accountability and strong internal controls.Contribute to enhancing automation and data-driven methodologies within the audit function.

Join our dynamic team as a Senior Engineering Manager in the Fintech domain at efood, where you will be pivotal in developing a robust, scalable, and adaptive platform that underpins customer payments and internal financial operations.This is a high-impact leadership position within a critical business sector, overseeing the complete lifecycle of efood's payment and financial transaction processes. Your responsibilities will span from customer order payments through downstream operations, inclusive of refunds, cancellations, fraud checks, vendor payouts, reporting, and regulatory compliance. Your engineering expertise, leadership acumen, and ability to navigate a complex stakeholder landscape will be essential.You will collaborate closely with Product Managers, Finance stakeholders, Engineering leaders, C-level executives, and Delivery Hero teams to enhance operational efficiency, elevate technical standards, and support the growth of the domain as our business expands. Technical EnvironmentOur architecture employs microservices, with over 80 services managing high volumes of requests through both synchronous and event-driven communication.Our technology stack includes Golang, REST APIs, gRPC, Kubernetes, AWS, GCP, PostgreSQL, MongoDB, Redis, and messaging platforms like SNS, SQS, Kafka, and cloud messaging services.As part of the Delivery Hero group, we maintain close collaboration with their Global Services teams. Your Responsibilities:Lead the Fintech engineering domain, managing a hybrid team structure that includes an Engineering Manager and senior engineers, adapting the team layout as priorities evolve.Collaborate with Product Managers to drive the delivery of innovative payment capabilities and domain enhancements, while providing valuable technical insights, tradeoffs, and prioritization guidance.Engage with Finance stakeholders to optimize finance flows, minimize discrepancies, enhance automation, and clarify cross-team issues and dependencies.Provide technical leadership by guiding architectural and design decisions, mentoring engineers and managers, and raising the standard for engineering quality, ownership, and systems thinking.Ensure execution across multiple services and teams, managing dependencies with Delivery Hero services by maintaining clear priorities, surfacing risks early, and tracking progress, challenges, and outcomes.Assist the team in balancing feature delivery, system reliability, and technical enhancements, with hands-on involvement as needed to remove obstacles or support critical choices.Mentor and support the development of engineers and managers to foster their growth.

Join our dynamic Management Training Program at eoctebp, where we cultivate future leaders through comprehensive training and hands-on experience. This program is designed for ambitious individuals eager to develop their management skills in a fast-paced environment. Participants will engage in various projects, receive mentorship from seasoned professionals, and gain valuable insights into effective management strategies.

Optasia is a cutting-edge B2B2X financial technology platform that encompasses scoring, financial decision-making, disbursement, and collection services. Our adaptable AI platform fosters financial inclusion, facilitates responsible financing decisions, and enhances customer experiences across 39 countries, supported by 7 regional offices.We are on the lookout for dynamic and driven professionals who possess a proactive attitude and a results-oriented mindset. Join our innovative team to deliver exceptional solutions in an exciting and collaborative environment.Your Responsibilities:Conduct market research and identify distribution partners across Africa.Uncover underserved market segments.Identify new asset classes.Examine regulatory and market shifts.Analyze competitors to identify product gaps.Define and prioritize product features.Manage product backlog effectively.Oversee the prioritization of customer requests (CR).Support the initial rollout and integration of new products.Create comprehensive use cases and business requirements.Perform feasibility studies and draft business plans.Lead product design, development, and release processes.Coordinate the collection and prioritization of product functionality requests.Monitor developments in the fintech credit space.Evaluate new credit product propositions.Assess distribution partners and tailor products to meet their needs.Prepare detailed business requirements and product specifications.Define go-to-market (GTM) strategies.Draft user manuals and sales support documentation.Collaborate with legal teams on contract templates.Engage with various stakeholders to piece together product elements.Train commercial and operations teams on new products and distribution partners.Monitor and optimize new products and partnerships during the first year of operations.

Optasia is an advanced B2B2X financial technology platform dedicated to enhancing scoring, financial decision-making, disbursement, and collection processes. Our mission is to drive financial inclusion globally, as we are transforming the financial landscape.We are in search of passionate and dynamic professionals with a results-oriented mindset to join our innovative team. As the Director of Quantitative Risk Management, you will lead a team of 50 dedicated members focused on optimizing Credit Risk. Your primary responsibility will involve researching, developing, implementing, and managing a framework for quantifying model and market risk. The ideal candidate will be self-motivated, thrive in fast-paced environments, and possess strong interpersonal skills for effective collaboration with Credit Traders and Quantitative Risk Data Scientists.Key Responsibilities:Oversee the measurement, monitoring, and control of credit risk.Develop a robust framework for risk model validation and strategy assessment.Review and validate the accuracy and suitability of existing and new risk models.Assess and validate credit risk policies.Design and define comprehensive credit risk management reports.Provide expert guidance to risk stakeholders regarding risk-taking practices.Support and validate risk optimization systems.Conduct detailed analysis and documentation of methodologies, techniques, and findings.Engage in cutting-edge research for risk quantification and model validation.

Optasia is a cutting-edge B2B2X financial technology platform specializing in scoring, financial decision-making, disbursement, and collection. Our mission is to promote financial inclusion for everyone. We are transforming the financial landscape in our unique way.We are on the lookout for passionate professionals who are energetic, results-oriented, and possess a can-do attitude. Join our dynamic team of innovators dedicated to delivering top-notch solutions in an exhilarating environment.As a vital member of the Systems Engineering team at Optasia, you will oversee the efficient provisioning, installation/configuration, operation, and maintenance of our systems hardware and software, along with associated infrastructure. Your contributions will include participating in technical research and development to foster ongoing innovation within our infrastructure. You will ensure compliance with organizational values by upholding high standards in system hardware, operating systems, software systems, and related procedures, thereby empowering staff, volunteers, and partners.

Optasia is a B2B2X financial technology platform focused on scoring, financial decision-making, disbursement, and collection. The company’s mission centers on advancing financial inclusion worldwide and reshaping the financial sector through a distinct approach. Role Overview The Quantitative Risk Data Scientist will join the Credit Portfolio Optimization team in Athens. This position sits at the intersection of risk management, research, and technology, contributing to algorithmic trading and portfolio optimization projects. The role involves working alongside traders, big data experts, and machine learning engineers to support real-time decision-making and maintain strong system performance. What You Will Do Design and implement algorithmic solutions to maximize revenue through detailed credit risk analysis. Extract actionable insights on credit risk using advanced big data analytics. Develop tools and procedures for portfolio risk assessment to monitor and manage credit risk effectively. Conduct thorough risk analyses of microloans and other financial products, refining risk models to improve decision quality. Identify and evaluate credit risk factors by applying advanced computational techniques to large datasets. Build predictive models using statistical and machine learning methods to strengthen risk management strategies. Collaborate closely with data scientists and machine learning engineers. Continuously update risk assessment methods in response to changing market conditions. What We Look For Bachelor’s or Master’s degree in Data Science, Statistics, Finance, Mathematics, or a related discipline. 2-5 years of experience in quantitative risk analysis, preferably within financial services. Demonstrated skill in developing and applying algorithmic models for revenue and risk optimization. Strong background in statistical modeling and experience with machine learning models. Proficiency in Python or R, and hands-on experience with big data risk analytics. Track record of designing and deploying portfolio risk assessment tools. Excellent problem-solving skills and attention to detail when working with complex datasets. Key Attributes Sound judgment and strong analytical thinking. Self-driven, resourceful, and comfortable working independently.