Banco de Talentos - Desenvolvedor (a) Front-end

BOSS Revolution helps millions of people across the world stay connected with family and friends — through international calling, mobile top-up, and money services. As a Senior Flutter Developer on our DTC Calling team, you'll build and evolve the flagship BOSS Revolution app: a large-scale Flutter product with a deep native calling stack (SIP/VoIP on Android and iOS) at its core.

You'll work in one of the largest Flutter codebases in production — a monorepo of 100+ internal packages, feature-first clean architecture, and a strong engineering culture around code quality, testing, and automation.

What You'll Do:

• Hybrid development: Design and build high-performance features in Flutter/Dart, while maintaining and extending the native calling stack — SIP clients, audio handling, CallKit/ConnectionService integration — in Kotlin and Swift, connected via platform channels
• Own features end-to-end within our feature-first clean architecture: Bloc/Cubit state management, repositories, immutable state, and 90%+ unit-test coverage on business logic
• Work at real scale: a melos-managed monorepo with 100+ packages, strict dependency hierarchy, code generation (freezed / json_serializable), and shared design system
• Ensure reliability of a real-time product: monitor releases with Crashlytics and analytics pipelines, investigate call-quality and stability issues, and drive performance optimization
• Contribute to the overall architecture and technical strategy of our mobile platform — from package design to migration of legacy patterns to the current architecture
• Collaborate closely with product managers, backend engineers, QA, and designers as part of a cross-functional product team
• Improve our engineering toolchain: GitHub Actions CI/CD, automated store/TestFlight releases, diff-coverage gates, and code-quality automation

We're Looking For:

• 5+ years of experience building large-scale mobile apps, including 3+ years with Flutter
• Strong proficiency in Flutter/Dart with deep understanding of the ecosystem: Bloc/Cubit (or comparable state management), asynchronous programming and isolates, code generation, and dependency injection
• Hands-on experience with native mobile development (Kotlin/Android and/or Swift/iOS) and integrating native code with Flutter via platform channels
• Solid understanding of mobile architecture patterns (clean architecture, modularization), performance optimization, and security best practices
• Strong testing culture: unit and bloc testing with mocked collaborators, deterministic tests, working under coverage gates
• Experience with the full mobile app development lifecycle — from concept to production and post-release monitoring — including Git, CI/CD pipelines (e.g., GitHub Actions), code signing, and deployment automation to the App Store and Google Play
• English: Upper-Intermediate or higher

It Would Be a Plus:

• Experience with VoIP/real-time communication: SIP, WebRTC, CallKit / Telecom framework, push-triggered call handling, audio session management
• Experience working in large monorepos (melos, Mason, or similar tooling)
• Knowledge and experience beyond the mobile stack (backend, infrastructure, observability)
• Domain experience in telecom, fintech, or other regulated consumer products

We are pleased to offer you:

• Remote b2b (Georgia-Moldova) or on-site employment (Belarus-Moldova) work opportunity!
• Stable job with long-term growth perspective
• Competitive salary with annual performance review
• Really good hardware
• An exciting and challenging job with talented people around
• Continuous learning and career growth opportunities
• Compensation for professional training, seminars, and conferences
• Referral program - get rewarded for helping us grow the team with talented people
• Company-supported English classes to enhance your professional growth
• More perks for the Minsk and Chisinau office employees

A few words about us:
IDT Corporation is a global communications company founded in 1990 and headquartered in Newark, New Jersey. We are industry leaders in prepaid communication and payment services and one of the largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20 countries, and have over $1.5 billion in revenues.

IDT is not ”another big IT corporation”— we encourage and support in-house entrepreneurs in developing their ideas into business actions.

Our flagship brand, BOSS Revolution, offers Money Transfer, International Calling, and Mobile Top-Up services and supports IDT’s mission of enabling people to keep in touch and share resources with family and friends worldwide.

If you're looking for a company that will give you the maximum flexibility in choosing a location to work, this opportunity is for you!

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

BOSS Revolution helps millions of people across the world stay connected with family and friends — through international calling, mobile top-up, and money services. As a Senior Flutter Developer on our DTC Calling team, you'll build and evolve the flagship BOSS Revolution app: a large-scale Flutter product with a deep native calling stack (SIP/VoIP on Android and iOS) at its core.

You'll work in one of the largest Flutter codebases in production — a monorepo of 100+ internal packages, feature-first clean architecture, and a strong engineering culture around code quality, testing, and automation.

What You'll Do:

• Hybrid development: Design and build high-performance features in Flutter/Dart, while maintaining and extending the native calling stack — SIP clients, audio handling, CallKit/ConnectionService integration — in Kotlin and Swift, connected via platform channels
• Own features end-to-end within our feature-first clean architecture: Bloc/Cubit state management, repositories, immutable state, and 90%+ unit-test coverage on business logic
• Work at real scale: a melos-managed monorepo with 100+ packages, strict dependency hierarchy, code generation (freezed / json_serializable), and shared design system
• Ensure reliability of a real-time product: monitor releases with Crashlytics and analytics pipelines, investigate call-quality and stability issues, and drive performance optimization
• Contribute to the overall architecture and technical strategy of our mobile platform — from package design to migration of legacy patterns to the current architecture
• Collaborate closely with product managers, backend engineers, QA, and designers as part of a cross-functional product team
• Improve our engineering toolchain: GitHub Actions CI/CD, automated store/TestFlight releases, diff-coverage gates, and code-quality automation

We're Looking For:

• 5+ years of experience building large-scale mobile apps, including 3+ years with Flutter
• Strong proficiency in Flutter/Dart with deep understanding of the ecosystem: Bloc/Cubit (or comparable state management), asynchronous programming and isolates, code generation, and dependency injection
• Hands-on experience with native mobile development (Kotlin/Android and/or Swift/iOS) and integrating native code with Flutter via platform channels
• Solid understanding of mobile architecture patterns (clean architecture, modularization), performance optimization, and security best practices
• Strong testing culture: unit and bloc testing with mocked collaborators, deterministic tests, working under coverage gates
• Experience with the full mobile app development lifecycle — from concept to production and post-release monitoring — including Git, CI/CD pipelines (e.g., GitHub Actions), code signing, and deployment automation to the App Store and Google Play
• English: Upper-Intermediate or higher

It Would Be a Plus:

• Experience with VoIP/real-time communication: SIP, WebRTC, CallKit / Telecom framework, push-triggered call handling, audio session management
• Experience working in large monorepos (melos, Mason, or similar tooling)
• Knowledge and experience beyond the mobile stack (backend, infrastructure, observability)
• Domain experience in telecom, fintech, or other regulated consumer products

We are pleased to offer you:

• Remote b2b (Georgia-Moldova) or on-site employment (Belarus-Moldova) work opportunity!
• Stable job with long-term growth perspective
• Competitive salary with annual performance review
• Really good hardware
• An exciting and challenging job with talented people around
• Continuous learning and career growth opportunities
• Compensation for professional training, seminars, and conferences
• Referral program - get rewarded for helping us grow the team with talented people
• Company-supported English classes to enhance your professional growth
• More perks for the Minsk and Chisinau office employees

A few words about us:
IDT Corporation is a global communications company founded in 1990 and headquartered in Newark, New Jersey. We are industry leaders in prepaid communication and payment services and one of the largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20 countries, and have over $1.5 billion in revenues.

IDT is not ”another big IT corporation”— we encourage and support in-house entrepreneurs in developing their ideas into business actions.

Our flagship brand, BOSS Revolution, offers Money Transfer, International Calling, and Mobile Top-Up services and supports IDT’s mission of enabling people to keep in touch and share resources with family and friends worldwide.

If you're looking for a company that will give you the maximum flexibility in choosing a location to work, this opportunity is for you!

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

A Snapshot of Your Day
Your day begins by reviewing new feature requirements and updating automated test scripts to reflect the latest changes. You sync with software developers to clarify technical details and ensure test coverage for critical modules. Before lunch, you execute automated test suites, analyze results, and report defects using Solution Manager or equivalent tools. In the afternoon, you participate in sprint planning, refine test data management strategies, and contribute to functional and quality reviews. You close the day by optimizing test automation frameworks and sharing insights with the team to drive continuous improvement.

Only applicable when hiring in Croatia:
Located in Split, Zagreb or Osijek (Croatia), you will be a part of the team of Pro Integris d.o.o. who is the 100% Siemens Energy subsidiary/legal entity.

How You’ll Make An Impact

• Develop, maintain, and execute automated test scripts for substation automation software, covering key functional and non-functional requirements.
• Partner with functional teams to define test scenarios, prepare test data, and document detailed execution steps.
• Integrate automation into CI/CD pipelines and support on-demand test cycles for rapid validation.
• Monitor and report script development/execution status in Solution Manager and related tools; present results to stakeholders (including live demos).
• Analyze failures, log defects, coordinate resolution with development teams, and manage retesting to closure.
• Evolve automation capability by improving frameworks (e.g., TOSCA/Worksoft), supporting tool setup/configuration/licensing, contributing to automation standards/handbooks, and mentoring team members.

What You Bring

• Long-term hands-on experience in test automation for industrial or grid automation software projects.
• Strong proficiency with automation tools/frameworks (TOSCA, Worksoft, or similar), scripting, and CI/CD integration.
• Domain understanding of substation automation and grid technologies; protocols such as IEC 61850, IEC 104, and DNP3 are a strong plus.
• Excellent communication and stakeholder management skills; proven ability to coordinate across automation, development, and functional teams.
• Experience with test dashboards/reporting and data-driven optimization of coverage and efficiency.
• Familiarity with agile delivery and structured governance (e.g., sprint rituals, quality reviews, PLM stage-gates); fluent English (German a plus).

About The Team
Our Grid Technologies division enables a reliable, sustainable, and digital grid. The power grid is the backbone of the energy transition. Siemens Energy offers a leading portfolio and solutions in HVDC transmission, grid stabilization and storage, high voltage switchgears and transformers, and digital grid technology.

Who is Siemens Energy?
At Siemens Energy, we are more than just an energy technology company. We meet the growing energy demand across 90+ countries while ensuring our climate is protected. With ~100,000 dedicated employees, we not only generate electricity for over 16% of the global community, but we’re also using our technology to help protect people and the environment.

Our global team is committed to making sustainable, reliable, and affordable energy a reality by pushing the boundaries of what is possible. We uphold a 150-year legacy of innovation that encourages our search for people who will support our focus on decarbonization, new technologies, and energy transformation.

Find out how you can make a difference at Siemens Energy: https://www.siemens\-energy.com/employeevideo

Our Commitment to Diversity
Lucky for us, we are not all the same. Through diversity, we generate power. We run on inclusion and our combined creative energy is fueled by over 130 nationalities. Siemens Energy celebrates character – no matter what ethnic background, gender, age, religion, identity, or disability. We energize society, all of society, and we do not discriminate based on our differences.

Rewards/Benefits

• The opportunity to engage in an exciting environment on meaningful projects
• Opportunities for career growth within a supportive workplace culture
• International environment, along with a pension fund
• Enjoy flexible working hours and the option to work from home
• Access to a canteen or meal allowances
• And more!

https://jobs.siemens\-energy.com/jobs

About The Job
Senior Java Engineer (Portal) - Zagreb | Hybrid
We're growing F24's Engineering Centre of Excellence in Zagreb and are looking for a
Senior
Java Engineer
to join our expanding engineering team.

This is an exciting opportunity to work on mission-critical SaaS products used by
5,500+ organisations worldwide
, helping organisations communicate and respond when reliability matters most.

You'll join a collaborative team where you'll build modern cloud-native applications, work alongside experienced engineers, and have plenty of opportunity to develop your technical skills while contributing to products that make a real impact.

Why F24?
This is an opportunity to:

• Build software used by organisations across 100+ countries
• Develop modern cloud-native applications with Java and Spring Boot
• Take ownership of features from design through to deployment
• Collaborate with experienced engineers, Product and UX teams
• Learn from senior technical mentors in a supportive engineering culture
• Join a growing international SaaS business with excellent long-term career progression

You
What you'll be doing:

• Designing and building scalable, secure cloud-native applications
• Leading technical discussions and architectural decisions
• Owning features end-to-end from requirements through to production
• Mentoring and supporting other engineers
• Driving code quality, best practices and continuous improvement
• Working closely with Product Owners to deliver high-quality software

We're looking for:
✔️ Min 4+ years' commercial software engineering experience

✔️ Strong Java, Spring Boot and Angular expertise

✔️ Experience building cloud-native, distributed systems

✔️ Strong understanding of REST APIs, security and CI/CD

✔️ Experience working with Docker and Kubernetes

✔️ Someone who enjoys technical ownership, mentoring others and solving complex engineering challenges

The salary for this role is paying up to €48k gross annually

About Us
What we do:
F24 is Europe’s leading Software-as-a-Service (SaaS) provider for resilience. More than 5,500 customers worldwide rely on F24’s digital solutions, which support companies and organisations through all areas of resilience. Solutions cover business messaging and service notification, emergency and mass notification, incident and crisis management, as well as governance, risk and compliance.

F24 supports customers in virtually every sector ranging from energy, healthcare, industry, finance, IT, tourism and aviation to a wide variety of public organisations. Many years of international experience have made F24 experts in improving resilience with digital solutions.

The company was founded in 2000 in Munich, where F24 AG’s head office is still located. Today, F24 supports companies and organisations in more than one hundred countries, via more than 20 locations in Europe and beyond. The F24 AG Board of Directors consists of F24 co-founder Christian Götz and the spokesperson Dr. Jörg Rahmer.

Find out more about working at F24 here.

Good reasons to work at F24:

• Have a tangible impact! Work in an agile environment where you make an important contribution to the success of our customers and the future of our company.
• Become part of our established company with an inspiring culture, flat hierarchies and our open, honest, innovative and supportive team!
• Grow with us: We are a company on the road to success, experiencing steady international growth. You have the opportunity to help shape our development.
• Take advantage of our flexible working model: We rely on a combination of presence in our offices and work from home. This way we strengthen our team spirit and at the same time gives you the opportunity to achieve the best possible balance between private and professional life.