Rivant

Senior Software Development Engineer

Sector: Banking

Location: Brussels

Contract length: 0 months

Estimated daily rate (EUR): 650 - 780

Languages: English (Dutch/French a plus)

Estimated daily rates are Rivant market estimates for guidance — not a client rate card.

Role details

Start date: Not specified

Duration: Not specified

Extension possible: Not specified

Location detail: Brussels (near Central Station) - 50% on site / 50% homeworking. Remote/telework from Belgium only

About the role

A major Belgian open-banking provider in Brussels needs a Senior Software Development Engineer on the team that builds an API platform connecting to banks across Europe. You design and ship pragmatic software, clarify evolving requirements, and keep applications robust from delivery through incident resolution.

Responsibilities

  • Develop software that meets functional and non-functional requirements
  • Design pragmatic technical solutions balanced for speed, quality and sustainability
  • Own incident investigation and continuous improvement of the platform
  • Participate in code review, CI/CD and release/change management
  • Contribute to REST API design and documentation for bank connectivity

Business experience

SkillLevelPriority
Turn business needs into technical solutions through the full delivery lifecycleNot specifiedMandatory

Functional experience

SkillLevelPriority
Assess off-the-shelf vs in-house options; apply industry standards across integration and deliveryNot specifiedMandatory
Investigate and resolve problems/incidents through to final resolutionNot specifiedMandatory
Ensure quality, performance and sustainable evolution of applicationsNot specifiedMandatory

Technical experience

SkillLevelPriority
Ruby & Ruby on Rails (ActiveRecord, RSpec or Minitest, Sidekiq or similar background jobs)≥5 yearsMandatory
Front-end JavaScript and at least one modern front-end frameworkNot specifiedMandatory
Strong SQL (PostgreSQL preferred) and ORM experience (e.g. ActiveRecord)Not specifiedMandatory
Design and consume REST APIs, webhooks, JSON and OpenAPI/SwaggerNot specifiedMandatory
git workflows, CI/CD pipelines and code reviewsNot specifiedMandatory
Linux command line in daily workNot specifiedMandatory
Vue.js (ideally Vue 3)Not specifiedPreferable
Elixir / Phoenix (or interest in learning)Not specifiedPreferable
AI-assisted development tooling in the daily workflowNot specifiedPreferable
RabbitMQ / event-driven messaging, Docker, OAuth2/OIDC/JWT, Kibana/APM, AWS ECS/EC2/API GatewayNot specifiedPreferable

Language requirements

English (Dutch/French a plus)

LanguageSpeakingReadingWritingMandatory
EnglishGoodGoodGoodYes
DutchBasicBasicBasicNo
FrenchBasicBasicBasicNo

Soft skills

  • Comfort with ambiguity; adapt quickly to changing needs and technologies
  • Continuous learning and ongoing improvement as part of daily delivery

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