Java BackEnd Developer

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Java BackEnd Developer

Caixa Mágica Software

Location

Lisbon, Lisbon, Portugal

Experience

Mid

Posted

Jul 30, 2026

Apply by

August 29, 2026

Applicants

0

Early applicantEasy applyFull-timeWork from Office

Job Description

## Location: Lisbon,Lisbon,Portugal Overview: Department Overview: Our team is responsible for the development of the middle and back office platform that supports a very relevant part of our operations. What will you do? As a member of Calypso IT, you will contribute to the development of the back end systems that: - Application designing / development / testing / support / enhancements / bug fixing. - Interact with functional and technical representatives of project teams in order to understand business functionalities, technical modules, integration mechanism and data sources. - Prepare test plans and conduct Unit, Integration, Regression, Performance and Functional Testing using automated testing frameworks. - Contribute to the technical designing phase and document the design with UML diagrams and models. Create prototype for proof of concept and business requirements validations. - Ensure that the project and organization standards are followed during various phases of software development lifecycle and day-to-day development work. - Estimate efforts, schedule for various modules, and meet deadlines. - Technical and Release Documentation. - Deployment of system components - Application, Shell Scripts and Databases. - Acquire skills in relevant technologies and take up higher responsibilities. - To participate in out-of-hours / daytime support as required. - To ensure that application is of good quality, ensure any issues are fixed on priority. - To work with teams to help solve complex technical problems. - Work towards initiatives to improve processes and delivery efficiency. - Contribute towards innovation; suggest new technical practices for efficiency improvement. - Conduct Code reviews. - Excellent coding skills and software craftsmanship are required to work on these systems. What are we looking for? - We are looking for candidates with a passion for technology and a strong business interest in Finance topics. - Proficient in Java, with a good knowledge of its ecosystems and proficiency in object-oriented programming. - Experience in Spring boot java applications. - Desirable Experience working Calypso customizations preferable in Back Office area. - Knowledge on Collections API. - Control structures, access modifier, exception handling. - Knowledge in Oracle SQL. - Knowledge in Unix/Linux systems, including scripting languages. - Demonstrable experience with DevOps tools. - Thorough understanding of complete Software Development Lifecycle. - Self-motivated, good interpersonal skills and inclination to constantly upgrade on new technologies and frameworks. - Good communication and co-ordination activities. - Ability to work independently and collaboratively in a team. - Excellent communication, analytical and organisational skills. - Attention to detail is essential especially when under pressure and time constraints. - Proactive and flexible approach to dealing with challenges. - Acts with integrity and discipline. - Be a role model, supporting and fostering a culture of good conduct. - Demonstrate proactivity, transparency and accountability for identifying and managing conduct risks. - Consider the implications of your actions on colleagues, partners and clients before making decisions, and escalate issues to your manager when unsure. What can you expect from us? - A permanent job contract for a long term project; - Tech equipment + SIM Card + personal smartphone; - Health and Life Insurance; - Social events and team buildings; - The commitment of letting you grow with us, and be rewarded accordingly; - A dynamic and young team that will be always there to support you; - Training in the latest technologies; - Coffee, fruits, snacks and a warm welcoming when you pass by the office. [Apply to this job](https://caixamagica.recruiterbox.com/jobs/fk0zdj9/?apply=true)

Key Responsibilities

  • Design, develop, test, and support backend systems and enhancements.
  • Interact with functional and technical representatives to understand business functionalities and data sources.
  • Prepare test plans and conduct Unit, Integration, Regression, Performance, and Functional Testing.
  • Contribute to technical design phases and document designs using UML diagrams and models.
  • Ensure project and organization standards are followed during the software development lifecycle.
  • Estimate efforts, schedule modules, and meet deadlines.
  • Create technical and release documentation.
  • Deploy system components including applications, shell scripts, and databases.
  • Participate in out-of-hours and daytime support as required.
  • Conduct code reviews and ensure application quality.
  • Work with teams to solve complex technical problems and improve processes.

Skills Required

JavaSpring BootObject-oriented programmingCollections APIOracle SQLUnix/LinuxScripting languagesDevOps toolsSoftware Development LifecycleUML diagramsCommunicationCoordinationSelf-motivationInterpersonal skillsAnalytical skillsOrganisational skillsAttention to detailProactive approachFlexibilityIntegrityDisciplineTeamworkIndependenceCalypso customizations

Benefits

  • Permanent job contract
  • Tech equipment
  • SIM Card
  • Personal smartphone
  • Health and Life Insurance
  • Social events and team buildings
  • Training in latest technologies
  • Coffee, fruits, snacks

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