Senior Mobile App Developer (iOS/Android) Job at Valtech (Stockholm)

Senior Mobile Developer

We’re looking for an experienced Senior Mobile Developer to join our team. You w...

Location

Romania , Timisoara; Cluj

Salary:

Not provided

Newpharma Development

Expiration Date

Until further notice

Requirements

5+ years in mobile development
At least 3 years using React Native
Proficient in React Native, JavaScript/TypeScript, and mobile app architectures
Experience with native modules (iOS/Android) is a plus
Familiarity with Redux, Context API, or other state management libraries
Experience integrating RESTful APIs and third-party libraries
Strong understanding of app publishing processes for Apple App Store and Google Play Store
Experience with expo would be a plus
Proficient with version control tools (e.g., Git)
Experience with CI/CD pipelines for mobile apps

Job Responsibility

Ensure the stability, performance, and scalability of our mobile applications
Identify and fix bugs, optimize performance, and implement updates
Design, develop, and deploy new features using React Native
Collaborate with backend developers to integrate APIs and ensure seamless functionality
Work closely with product managers, UI/UX designers, and QA teams to deliver top-notch user experiences
Provide technical guidance to junior developers and ensure coding best practices are followed
Write clean, maintainable, and reusable code
Conduct code reviews to maintain high-quality standards across the team
Stay updated on the latest trends and advancements in React Native and mobile development
Advocate for best practices and help identify tools and technologies to improve the development process

What we offer

Medlife Medical Package
Fitness Support with contribution to monthly gym membership fee and 7Card
Meal tickets worth 34 RON per day
Eyewear reimbursement up to 500 RON every two years
Extra Time Off with additional holidays
Professional Growth with learning opportunities (LinkedIn Learning, Udemy, Lucid Chart, SymfonyCasts, Bookster, internal soft skills trainings)
Employee Discounts on newpharma.ro

Senior React Native developer

Fireart is an experience design & technology partner to clients large and small....

Location

Poland , Warsaw

Salary:

Not provided

Fireart Studio

Expiration Date

Until further notice

Requirements

4+ years of commercial experience
Expert knowledge of React Native
Ability to develop native iOS/Android components to integrate with React Native and advanced platform capabilities
Expert knowledge on HTML, CSS (including CSS preprocessors)
Experience in consuming REST and GraphQL APIs
Commercial experience with Typescript
Commercial experience integrating Maps, Location, In-App purchase
High productivity and effective time management
Experience with Scrum/Agile SDLC
Outstanding interpersonal and written communication skills

Job Responsibility

Working remotely (or from Fireart office)
Working with international clients from entire world (US+UK = 80%)
Working within a project team, having Project Manager, Backend developers and Frontend developers as partners
Creating a beautiful mobile applications based on provided designs in Figma (90%)
Performing Code Review for other projects and other mobile developers (10%)
Using digital tools to communicate with client and within a team (Slack, Google Meet)

What we offer

21 paid days off per year
Health insurance
Learning resources
Competitive compensation depending on experience and skills
A friendly team of like-minded people
Opportunities for learning and development
Compensation for sick leaves
21 working days paid vacation + all Poland national holidays
Corporate events and activities
Private medical care

Fulltime

Senior Software Engineer

Get to Know Us: It's fun to work in a company where people truly believe in what...

Location

United States , Pleasanton

Salary:

156000.00 - 196000.00 USD / Year

BlackLine

Expiration Date

Until further notice

Requirements

7+ years of hands-on experience in Web Application, Mobile, SaaS, and RESTful API testing
7 or more years of hands-on test automation development, with experience building a test automation suite from the ground up
7 or more years of hands-on working experience in traditional OOP programming languages, specifically C# (with .NET core and NUnit / XUnit / MSTest)
Hands on experience with IOS and Android hybrid/native mobile applications testing and test automation using Appium/Selendroid
Work closely with Product/UX designers to discuss and give feedback about customer perspective for UI/UX designs from QE
Hands on experience with testing, analyzing and troubleshooting communication between mobile apps and API
Configure CI/CD tool to run regression Appium/Selendriod automated tests
Experience in testing integration solutions for batch, API and event driven architectures
Experience with testing various integration patterns, styles and technologies and API gateway
Deep understanding of both technical and non-technical requirements for enterprise SaaS at scale in the areas of system performance, scalability, latency, reliability and security

Job Responsibility

Create Web application, Mobile App and API automation utilizing tools and frameworks already in place to ensure future automation coverage of all features
Build Mobile App test automation for both IOS/Android using Appium
Experience in testing Hybrid/Native IOS/Android Mobile Applications
Build and add to Automation Regression Test Harness
Experience in testing on virtual emulators using device farms
Drive improvements and provide recommendations by using or creating tools and contributing to the automation framework already in place
Independently identify and assess risks and develop mitigation steps and processes to be put in place for projects, while collaborating on technical designs, management of dependencies, and efficacy of valid test data to ensure successful and high-quality deliverables
Execute Quality Engineering (QE) forensics and detailed root cause analysis of test failures, reported defects, and performance and scalability issues
Provide technical leadership to other QE staff as the QE discipline and team grows, acting as an agent of change for a quality-first culture within the organization
Execute on QE compliance objectives and appropriate metrics to measure success

What we offer

Short-term and long-term incentive programs, based on eligibility
Robust offering of benefit and wellness plans

Fulltime

Senior Technology Architect

Our client is looking for a Senior Technology Architect for a 12 month contract ...

Location

Canada , Toronto

Salary:

Not provided

Randstad

Expiration Date

June 22, 2026

Requirements

Demonstrated Technology Leadership, and Vision - Develop, socialize and obtain buy in for multi-year technology roadmaps, and must include recent example involving digital credentials
10+ years in designing and developing enterprise technology solutions in complex environments, with experience in both public/broader public and private sectors
Experience in developing digital credential solutions, including digital wallet solutions on mobile (ie. iOS and Android) devices, distributed ledger technologies, verifiable credentials (VC), verifiable credential registries, verifiable presentations, decentralized identifiers (DIDs), use cryptographic suites/tools, zero-knowledge proofs
Extensive knowledge of related standards and market direction - W3C, DIF, TrustOverIP, OIDC and Open Wallet Foundation. Specific technologies JWT/JWS, JSON-LD, Public/Private key cryptography (EdDSA, EcDSA), zero knowledge proofs , DIDComm, ACA-Py, Credo Framework for Digital Wallet, Oauth2 OpenID Connect, OIDC4VC, OIDC4VP
Extensive Mobile development experience on Android and IOS - React Native, Javascript, GitHub.

Job Responsibility

To take a leadership role acting on behalf of ODS Program Implementation Office, and the Ontario Digital Service for the technology architecture, design and build of a digital credential platform and related products
To design and maintain a digital credential technology architecture representing the necessary ecosystem components that is based on the world wide web consortium (W3C) verifiable credentials (VC) model, utilizing decentralized identifiers (DIDs), DIDComm communication protocols, and related industry standards and frameworks such as the PCTF, NIST and eIDAS etc
Work with staff to lead the development of key (technology) architecture artefacts to support the architectural gating process
Development of an implementation roadmap and options for a verifiable credential model approach, that takes into consideration the requisite components, technology required/involved, readiness, market readiness and maturity
develop short term tactical and longer term strategic implantation plans and options
Identify and evaluate commercially ready products and open source solutions that are viable for use and implementation
including assessment and recommendations of products
Align the technology architecture for digital credentialing (VC Model, DID) with the Enterprise Identity and Access Management solution to ensure integration where required, including alignment with the OPS policy on identity and credential assurance levels
Work with product teams to develop the technology requirements and to ensure alignment towards the enterprise solution approach and roadmap
Lead and work with technical and product development engineers to develop functional proofs of concept, pilot implementations and/or final product implementations of solutions that align with the enterprise digital credential solutions roadmap, including digital wallets, mobile apps on iOS/Android devices, web sites and back-end infrastructure

What we offer

Earn a competitive rate within the industry
Location: Up to 5 days onsite
Potential for extension

Fulltime

!

Senior Technology Architect

Do you have extensive Mobile development experience on Android and IOS - React N...

Location

Canada , Toronto

Salary:

Not provided

Randstad

Expiration Date

June 21, 2026

Requirements

Demonstrated Technology Leadership, and Vision - Develop, socialize and obtain buy in for multi-year technology roadmaps, and must include recent example involving digital credentials
10+ years in designing and developing enterprise technology solutions in complex environments, with experience in both public/broader public and private sectors
Experience in developing digital credential solutions, including digital wallet solutions on mobile (ie. iOS and Android) devices, distributed ledger technologies, verifiable credentials (VC), verifiable credential registries, verifiable presentations, decentralized identifiers (DIDs), use cryptographic suites/tools, zero-knowledge proofs
Extensive knowledge of related standards and market direction - W3C, DIF, TrustOverIP, OIDC and Open Wallet Foundation. Specific technologies JWT/JWS, JSON-LD, Public/Private key cryptography (EdDSA, EcDSA), zero knowledge proofs , DIDComm, ACA-Py, Credo Framework for Digital Wallet, Oauth2 OpenID Connect, OIDC4VC, OIDC4VP
Extensive Mobile development experience on Android and IOS - React Native, Javascript, GitHub.

Job Responsibility

To take a leadership role acting on behalf of ODS Program Implementation Office, and the Ontario Digital Service for the technology architecture, design and build of a digital credential platform and related products
To design and maintain a digital credential technology architecture representing the necessary ecosystem components that is based on the world wide web consortium (W3C) verifiable credentials (VC) model, utilizing decentralized identifiers (DIDs), DIDComm communication protocols, and related industry standards and frameworks such as the PCTF, NIST and eIDAS etc
Work with staff to lead the development of key (technology) architecture artefacts to support the architectural gating process
Development of an implementation roadmap and options for a verifiable credential model approach, that takes into consideration the requisite components, technology required/involved, readiness, market readiness and maturity
develop short term tactical and longer term strategic implantation plans and options
Identify and evaluate commercially ready products and open source solutions that are viable for use and implementation
including assessment and recommendations of products
Align the technology architecture for digital credentialing (VC Model, DID) with the Enterprise Identity and Access Management solution to ensure integration where required, including alignment with the OPS policy on identity and credential assurance levels
Work with product teams to develop the technology requirements and to ensure alignment towards the enterprise solution approach and roadmap
Lead and work with technical and product development engineers to develop functional proofs of concept, pilot implementations and/or final product implementations of solutions that align with the enterprise digital credential solutions roadmap, including digital wallets, mobile apps on iOS/Android devices, web sites and back-end infrastructure

What we offer

Earn a competitive rate within the industry
Location: 5 days onsite
Potential for extension.

Fulltime

!

Senior Director, Product – Revenue & Retention

We are seeking a SENIOR DIRECTOR OF PRODUCT TO LEAD REVENUE & RETENTION — the fu...

Location

United States , Boston

Salary:

241000.00 - 354000.00 USD / Year

SimpliSafe

Expiration Date

Until further notice

Requirements

Deep expertise in mobile product strategy, app-led growth, and mobile UX
Ability to extend strategy through cross-channel customer engagement
Leadership experience in product management and customer marketing
Experience in monetization, ARPU growth, and retention strategies
Experience in rigorous experimentation and iteration cycles
Experience in cross-functional partnership and team leadership
Customer Obsessed
Aim High
No Ego
One Team

Job Responsibility

Own the Revenue & Retention product roadmap across the current 12-month horizon — including prioritization, sequencing, and delivery
Take newly delivered capabilities from the Experience Strategy team and drive the product and marketing initiatives that maximize their retention and revenue impact
Leverage a deep understanding of mobile app ecosystems (iOS/Android) to ensure new capabilities translate into seamless, high-converting mobile experiences
Run a rigorous experimentation and iteration cycle within your zone to continuously improve performance against CLV targets
Increase Free-to-Paid conversion rates
Improve upgrade rates and optimize upgrade timing and value visibility
Drive hardware component attach and ARPU lift
Own subscriber retention across the lifecycle
Drive a holistic retention strategy that addresses key churn drivers
Ensure customers consistently understand and trust the protection they receive

What we offer

A mission- and values-driven culture and a safe, inclusive environment
A comprehensive total rewards package that supports your wellness and provides security
Free SimpliSafe system and professional monitoring for your home
Employee Resource Groups (ERGs)
Participation in our annual bonus program, equity, and other forms of compensation
A full range of medical, retirement, and lifestyle benefits

Fulltime

Senior React Native Engineer

We are currently looking for a highly skilled Senior React Native Engineer with ...

Location

Salary:

Not provided

Commencis

Expiration Date

Until further notice

Requirements

6+ years of overall software development experience
at least 3 years of hands-on experience with React Native
strong preference for React Native CLI development (Expo experience is welcomed)
experience with bridging and native modules (iOS/Android)
familiarity with app store submission and release processes
excellent interpersonal communication skills
excellent team player
good English communication skills

Job Responsibility

Strong foundation in React Native and be able to develop complex mobile applications using React Native
deep understanding of mobile app development, including UI/UX design principles, performance optimization, and app architecture
JavaScript experience and be able to write clean, modular, and maintainable code
experience using Redux to manage state in React Native applications
experience integrating with APIs and be able to design and develop API interfaces for mobile applications
familiar with the process of deploying mobile apps to the App Store and Google Play Store
develop cross-platform mobile applications that work on both iOS and Android devices
experience in writing unit tests, integration tests, and end-to-end tests for React Native applications
familiar with CI/CD tools and be able to set up and maintain automated build and deployment pipelines that are specific for mobile deployments
problem-solving skills and be able to troubleshoot and debug complex issues in React Native applications

What we offer

Competitive salary
private health insurance
pension and retirement plans through a company-backed pension system
meal card
commute compensation
work-from home support
paid birthday off
flexible working hours including remote working option
online events, guest speakers, refreshments in the office, meeting-light culture
support learning and development programs for almost anything

Fulltime

Sr Staff Engineer - Rider Foundations

The Rider Foundations team is responsible for the architecture, health, and qual...

Location

India , Bangalore

Salary:

Not provided

Uber

Expiration Date

Until further notice

Requirements

12+ years of software engineering experience with deep expertise in backend distributed systems and a strong understanding of mobile app ecosystems
Track record of driving large-scale, ambiguous technical initiatives across multiple teams — from strategy through production rollout
Experience designing APIs, data layers, or platform infrastructure that other engineering teams build on top of
Experience with mobile app architecture patterns — understanding how backend services, APIs, and data layers integrate with iOS/Android clients at scale
Background in GraphQL, API federation, or API gateway design at high traffic volumes
Experience improving developer velocity at an organizational level — build systems, testing infrastructure, observability, or developer tooling
Demonstrated ability to influence technical direction beyond your own team, including reviewing designs, mentoring senior engineers, and setting architectural standards

Job Responsibility

Serve as a technical anchor across Rider Foundations — contributing to architecture, health, and quality initiatives spanning backend services, mobile infrastructure, and developer tooling
Shape the technical strategy for Rider's next-generation app architecture, including GraphQL federation, new data layer patterns, and the migration path from legacy to modern systems
Drive engineering excellence across the broader Rider Core org (~70 engineers) — reviewing ERDs, raising the technical bar, and mentoring senior engineers
Partner with cross-org platform teams to align on API contracts, schema ownership, observability standards, and cross-platform technology strategy
Identify and tackle high-leverage technical problems that improve developer velocity, app reliability, and app quality — whether that means building new infrastructure, fixing systemic issues, or defining governance frameworks

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Senior Mobile App Developer (iOS/Android)

Job Description

Job Responsibility

Requirements

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