Software Engineer – Java/Kotlin

Signicat

. Design, build and maintain microservices at the core of Signicat’s MobileID and Digital Identity Wallet solutions .

Posted 10/8/2026full-timeBucharest • RomaniaJuniorMid-LevelWebsite

Core Competencies

Role fit

Core Competencies

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Proficient in designing and maintaining microservices for digital identity solutions, with a strong focus on security, authentication protocols, and cloud infrastructure. Demonstrates expertise in Java or Kotlin, REST API design, and experience with Kubernetes and relational databases.

Highest-signal resume keywords

Java DevelopmentKotlin DevelopmentSpring FrameworkAWS Cloud InfrastructureKubernetes Management

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Hard Skills

Microservices DesignREST API DesignRelational DatabasesMySQLPostgreSQLAI Tool IntegrationOAuth 2.0OpenID ConnectCryptographyKey Management

Soft Skills

Strong English Proficiency

Tools & Technologies

HelmArgoCDTerraform

Industry Keywords

Digital IdentityAuthenticationIdentity VerificationPayment ConfirmationRegulated EnvironmentsPSD2Strong Customer AuthenticationEIDAS

Tech Stack

Tools & technologies

AWSCloudJavaKotlinKubernetesMicroservicesMySQLPostgresSpringTerraform

About the role

Key responsibilities & impact

Design, build and maintain microservices at the core of Signicat’s MobileID and Digital Identity Wallet solutions
Own services end to end, from code and tests through deployment, monitoring and production operation
Work on the delivery platform alongside the team
Strengthen solution security through threat modelling, current standards, authentication protocols and key handling
Participate in architecture decisions and technical discussions within the team and across client and service teams
Build and scale secure, reliable services supporting authentication, identity verification, payment confirmations and digital credential issuance across Europe

Requirements

What you’ll need

2+ years of experience with Java and/or Kotlin
Comfortable working with Spring or a comparable JVM framework
Experience designing REST APIs used by other teams
Cloud infrastructure experience with AWS or Google
Real experience running services on Kubernetes
Hands-on knowledge of relational databases, ideally MySQL; PostgreSQL or other relational databases also relevant
Demonstrated experience using AI tools and integrating them into everyday work
Strong English proficiency, both written and spoken
Bonus: Experience with Helm, ArgoCD or other GitOps tooling
Bonus: Terraform or comparable infrastructure-as-code
Bonus: OAuth 2.0 and OpenID Connect in production
Bonus: Cryptography, key management or HSMs
Bonus: Mobile authentication, biometrics or device attestation
Bonus: Regulated environments such as PSD2, strong customer authentication or eIDAS

Benefits

Comp & perks

Fully remote role in Portugal
Hybrid work style in Romania, with an expectation to work from the Bucharest office 3 days per week
Tailored benefits package by location
Choice of tech gear according to preference
Extra paid days off annually
Additional days off for work anniversaries
Health and wellness packs
Access to the Headspace app
Quarterly development talks
Dedicated time during working hours each week for training and development
Defined career paths
Internal mentorship opportunities
Customised onboarding plan
Opportunity to work from any other Signicat office for 2 months per year
Opportunity to work from any European country for 3 weeks per year
16 hours of paid volunteer time each year
Employee engagement tools and feedback culture
Frequent office gatherings
Biennial Kick-off event