Expert Java Developer for Ciklum Digital

Kyiv, Amosova, Ukraine


Modulr is one of the UKs leading fintech scale-ups and the #2 fastest growing technology company in the UK, according to D&B. We are looking for a number of software engineers to join our rapidly expanding technology team. You will be part of a scaling business in a high-quality team that is working on new products and features while solving interesting technical challenges. In this role you will work in a cross- functional co-located team who are asked to solve a problem, rather than handed a task to do. This is an excellent opportunity to work in a high-growth environment with a fast- paced and collaborative culture where you will have access to the latest technologies.

Modulr is a vibrant FinTech scale-up who are rethinking business payments. We automate payment flows, embed payments within business platforms, and enable customers to build new payment products and services giving them a modern alternative to traditional banks. Our customers use a simple RESTful API which has processed over 70 million transactions with a value of over £60 billion to date.

We have attracted over £38 million in investment funding including £10m from Banking and Competition Remedies fund as well as venture capital from several firms including PayPal Ventures. Modulr was ranked 18th on LinkedIn’s 2019 Top Start-ups List in UK and we have won multiple awards and listing including Emerging Payments and FinTech50.

We have 9 teams in product and technology who deliver work in an Agile fashion. We use a mix of Agile methods and we don’t favour a particular one; we’d rather be open- minded and honest with what works for us. We prefer self-organising teams who work together to maximise the value we create.

Read more about the client


On behalf of Ciklum Digital, we are looking for an Expert Java Developer to join our team on a full-time basis.

You will join a highly motivated team and will be working on a modern solution for our client. We are looking for technology experts who want to make an impact on new business by applying best practices and taking ownership.


  • Lead and improve the decision-making process in design solution architecture, solution development, architecture and code review;
  • Back-end development to meet customer’s business needs and implement components according to modern software development environment (cloud-based platforms, microservice architecture, etc.);
  • Develop and review feature design documents and provide inputs/update to specifications for the solution;
  • Design and implement a set of various types of tests (unit, integration, functional, etc);
  • Proactive position in architecture preparation, solution development, processes improvements;
  • Working in an international distributed team in an Agile environment;
  • Communicate with PMs, engineers, Architects, QA and other colleagues and stakeholders;
  • Delivering the product roadmap and plannings;
  • To use high coding standards, software best practices and write highly testable, automatable and performant code over the whole SDLC.


  • Experience in software development for more than 7 years;
  • Excellent knowledge in Computer Science, Computing Theory:
    • Paradigm & Principles (OOP, SOLID, DDD, TDD, BDD);
    • Database theory (RDBMS, NoSQL);
    • Code testing practices;
    • Algorithms;
    • Data structures;
    • Architectural, Enterprise and Design Patterns;
    • Deployment patterns;
    • Security patterns, Reverse engineering resistance, Common attacks types (OWASP);
  • Understanding of network interactions:
    • protocols;
    • conventions (e.g. REST, RPC);
    • authentication and authorization flows;
    • standards and practices (e.g. oAuth, JWT);
  • Excellent knowledge and experience in Java (ideally experience with Java 11) (more than 5 years);
  • Practical commercial experience with:
    • REST API development;
    • Web application frameworks (e.g. Spring Boot Framework) (more than 4 years);
    • Testing frameworks (e.g.e.g. JUnit, PowerMock, WiresMock) (more than 4 years);
    • Java related Open Source technologies, such as Spring and Hibernate;
    • RDBMS (e.g MySQL/MariaDB, PostgreSQL, Oracle) (more than 4 years);
    • NoSQL (e.g. MongoDB, ElasticSearch, CouchDB);
    • Search Engines (e.g. ElasticSearch, Azure Search, Apache Solr);
    • Key-value storages (e.g. Redis, Memcached);
    • Messaging systems (e.g. RabbitMQ, Apache Kafka, Active MQ, AWS SQS, Azure Service Bus, Google Pub/Sub);
    • Web Servers;
    • Version control systems (GIT);
    • Cloud solutions (e.g. AWS, Google Cloud Platform, Microsoft Azure);
    • Integration with 3rd party solutions;
    • Docker;
    • Continuous Integration tools (e.g. Gitlab Pipeline, Jenkins, TeamCity, Bamboo);
    • Builders;
    • Experience of micro-services using SpringBoot or similar;
    • Strong understanding of OOP and design patterns;
    • Experience of building a high-performance services-based platform;
  • Experience with:
    • Leading Team;
    • Troubleshooting, profiling and debugging applications;
    • Creation software architecture and design of complex applications, platforms, microservices solutions;
    • Agile software processes and technologies;
    • Code Review process;
    • Refactoring process;
  • Fluent English is a must;



  • Certifications on:
    • Java;
    • Spring Frameworks;
    • Cloud providers;
    • Delivery processes (SAFe, Agile, etc);
  • Experience with Leading and Supporting medium to large size solution delivery projects;
  • Understanding of orchestration and containerisation (e.g. Kubernetes, Swarm);
  • Practical commercial experience with:
    • Serverless architecture;
    • Provisioning tools (e.g. Terraform, Ansible);
    • Quality tools (e.g. SonarQube);

Personal skills

  • Supervise individuals and teams, and work under general direction within a clear framework of accountability. Lead, support and monitor progress against agreed quality and performance criteria. Facilitate effective working relationships between team members;
  • Perform a broad range of complex technical or professional activities, in a variety of contexts. Investigate, define and resolve complex issues.
  • Drive distributed cross-functional teams. Influence customers and team members on the project level.
  • Contribute to project team composition planning, conduct interviews. Facilitate selection, assessment and onboarding processes, and Ciklumers’ allocation on projects.
  • Communicate fluently, and can present complex information to both technical and non-technical audiences.
  • Identify, proactively rise and manage risks (resolutions, corrective actions and lessons learned).

What's in it for you

  •  Career growth opportunities;
  • Realization of your innovative ideas in building new Ciklum Solutions and Services;
  • Friendly collaborative teams and an enjoyable working environment;
  • Professional skills development and training programs;
  • Variety of knowledge sharing, training and self-development opportunities;
  • State of the art, cool, centrally located offices with a warm atmosphere which creates really good working conditions.