Senior Mobile Engineer

At Ageras, we are redefining how entrepreneurs—freelancers, self-employed professionals, and SMEs—manage their banking, and administrative tasks. Through seamless tools and innovative accounting & banking solutions, we help them focus on what matters most: growing their businesses.

Our vision is to become the best friend of every small entrepreneur across Europe.

Over the years, Ageras has grown through the merging of top European FinTechs like Shine (), Kontist (), Tellow (), and more. Today, we're a team of nearly 500 people working together from Paris, Amsterdam, Copenhagen, and Berlin.

The Frontend Ops team at Shine

You'll join a small but pivotal
Frontend Ops
team (Head of Frontend, Web Engineer, and you) dedicated to building the foundations that let product teams move faster and more consistently. You'll pair strategic thinking with
hands-on React Native engineering
, shape the
mobile architecture vision
, and partner closely with design to create a
shared design system
that truly bridges Figma and code.

Your role as a Senior Mobile Engineer (Frontend Ops)

As
Senior Mobile Engineer at Shine
, you'll be the hands, the craft, and the steady voice driving mobile excellence across our rapidly evolving SaaS universe. With six customer-facing applications—three web, three mobile—each with its own quirks, build systems, and styling approaches, we're unifying how we deliver great product experiences across platforms.

This is a unique opportunity to
define how mobile is built at Shine
, improve developer experience, streamline QA and production releases, and make it simple for product squads to ship high-quality features across both iOS and Android.

Your responsibilities will include:

• Strategy & Architecture
• Co-define Shine's
  mobile architecture vision
  with the Head of Frontend and Web Engineer, ensuring it meshes with the broader
  frontend consolidation
  effort
• Contribute to the
  design system strategy
  —design tokens, component APIs, and shared UI patterns that span mobile and web
• Advocate
  good practices, tooling, and workflows
  that make mobile development approachable for all engineers
• Technical Ownership
• Lead
  hands-on development
  in
  React Native + Expo
  , ensuring a robust, maintainable codebase
• Shape and maintain
  CI/CD pipelines
  and release automation (EAS, GitHub Actions, Firebase, App Store Connect, Play Console)
• Ensure QA and production
  build and release processes are smooth, well-documented, and easy for stream-aligned teams to use
• Act as the
  go-to expert
  for signing, submissions, and store compliance, unblocking teams when issues arise
• Ensure
  testing strategies
  (Jest, Detox, Maestro) are well integrated into the mobile workflow
• Collaboration & Enablement
• Work in lockstep with the
  design team
  to align
  Figma tokens and components
  with live code, creating a tight feedback loop
• Support and mentor engineers in
  stream-aligned teams
  , helping them confidently deliver mobile features on top of shared foundations
• Document architecture, decision records, and
  developer-friendly guides
  that enable contribution without gatekeeping

Job located in Copenhagen, Paris, Berlin, Gdansk or Amsterdam, with possibility of two remote working days per week

What Success Looks Like

• Proven experience building and scaling
  React Native
  applications in a
  SaaS or platform
  environment
• Strong knowledge of
  Expo, EAS
  , and mobile
  CI/CD pipelines
• Deep understanding of
  App Store & Play Console
  processes, signing, and release management
• Solid experience implementing and maintaining
  testing strategies
  (Jest, Detox, Maestro)
• Passion for
  developer experience
  , documentation, and sharing knowledge across teams
• Excellent cross-functional collaboration skills—able to partner with design, product, and engineering managers

About you

• Proven experience building and scaling
  React Native
  applications, with strong knowledge of
  Expo, EAS
  , mobile
  CI/CD pipelines
  , and prior exposure to
  Expo Custom Native workflows
• Comfortable navigating
  iOS and Android projects
  to debug builds, integrate
  config plugins
  , or adjust local modules
• Deep understanding of
  App Store & Play Console
  processes, signing, and release management
• Solid experience implementing and maintaining
  testing strategies
  (Jest, Detox, Maestro)
• Passion for
  developer experience
  , documentation, and knowledge sharing
• Excellent cross-functional collaboration skills—able to partner with design, product, and engineering managers
• Some Nice-to-Have :
• Experience shaping a
  mobile design system
  (tokens, component libraries), integrating
  Storybook
  or
  Figma
  , and familiarity with
  multiple styling solutions
  or
  cross-platform UI strategies
• Familiarity with
  monorepo tooling
  (Turborepo, Nx) and knowledge of
  Swift
  or
  Kotlin
  for mobile development
• Contributions to
  open source
  or active involvement in the mobile engineering community are a plus

Equal Opportunity Employer

We follow the principle of equal treatment to consider all job applicants and do not discriminate based on their gender, sexual orientation, color, racial or ethnic origin, religion, disability, etc. as per applicable law.

Our recruitment process

An initial conversation with Alexandre (Senior Software Engineer - Frontend Ops) and Allan (VP of Platform), to understand your background, motivation, and expectations.

A technical interview with a live coding session and discussion with Alexandre and several members of the team

A finale interview when we will talk about your soft skills with a personality test, and you will meet your potential future colleagues..

What's In It For You?

• Compensation :
  A salary range between €65k/85K per month, depending on level of experience and skills set, and location.
• Remote Work Culture:
  Work from our Copenhagen, Paris, Berlin, Gdansk or Amsterdam office, with possibility of remote working days.
• Scale-Up Impact:
  Work in a high-growth environment backed by
  500 passionate people across Europe
  and
  multiple acquisitions
  under our belt. Your work will have direct, measurable impact on our growth journey.
• Events and Travels :
  Regular team events, international trips, and cross-European networking opportunities