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Optasia

Senior Software Engineer, Fintech

Athens
Level
Senior

Not stated in the posting: salary, work type, visa.

Open. First seen 20 October 2026.

Apply on the company's site →

About the role

Optasia's standard text

Optasia is a real-time financial intelligence company. We build precision intelligence that unlocks financial opportunity at scale, running millions of automated credit decisions every day across high-growth markets where formal credit data is limited. Our AI-powered platform turns permitted behavioural data and real-time signals into precise, responsible credit decisions.

Embedded within the systems of telcos, banks, digital wallets and other partners, it helps them extend relevant financial services to more people while maintaining strong portfolio control and opens profitable new segments that were previously out of reach. This is how Optasia turns potential into financial progress, responsibly and at scale.

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.

What you will do

  • As a Senior Software engineer you will be involved with analysis, design, development, and maintenance of the microloan provisioning platform.
  • Our enterprise platform handles millions of loan transactions daily.
  • Efficiency, performance, and quality are key aspects in each software development phase that the candidate should be wary of.
  • Developers are able to see product at all the phases of its life.
  • Platform is implemented in Java using Spring framework based on the microservices architecture.
  • Technology stack we use include, Spring, JMS, REST WebServices, Hazelcast, Postgres, Kafka, Elastic, Docker Swarm, Debian.
  • We are seeking people not necessarily having experience at the technologies we use but eager to learn and contribute to our product.

What you will need

  • Bachelor's degree in Computer Science or a related discipline
  • At least 7 years' experience in back-end platforms development with solid programming abilities in Spring Framework
  • Knowledge of Relational Database technology
  • Knowledge of NoSQL will be considered a plus
  • Postgres, Elastic Search, Docker Swarm

Your key attributes

  • Excellent communication skills and team working mentality
  • Passion for learning new technologies and eagerness to collaborate with other creative minds
  • Sharp and highly motivated personality
  • Strong desire for exploring, evaluating, and understanding new technologies
  • Ability to hit tight deadlines and work under pressure and strict attention to detail
  • Excellent judgment, organizational and problem-solving skills
  • Experience in working with secure code development guidelines and coding practices (i.e. OWASP, NIST)

Why you should apply

What we offer:

  • Work from anywhere policy (90-day per year)
  • Competitive remuneration package
  • Extra day off on your birthday
  • Performance-based bonus scheme
  • All the tech gear you need to work smart

What this role asks for

75% of this description is written for the role. The rest is Optasia's standard text, folded away below.

Compared with Optasia's other open jobs.

The team: Technology & Innovation HIRES STEADILY

This role is one of 5 open in Technology & Innovation. 3 were posted in the last 30 days and the oldest in March: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

Docker (3 of 5), Linux (3 of 5), Ansible (2 of 5), Azure (2 of 5), CI/CD (2 of 5), Kafka (2 of 5), Kubernetes (2 of 5)

OTHER ROLES ON THIS TEAM

From the team and dates on Optasia's own job board.

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