Senior Backend Developer - Golang/Node

buscojobs Brasil; Novo Hamburgo; Teletrabalho; BRL 80.000 - 100.000; Tempo integral

Resumo da oferta

A leading tech recruitment platform is seeking a Senior Flutter Developer focused on building a macOS app. This role involves designing, developing, and maintaining high-performance applications while ensuring code quality and integrating real-time features. The ideal candidate has strong experience with Flutter and Dart, is fluent in English, and has a track record of optimizing app performance. This position offers a remote work environment and competitive market remuneration.

Serviços

Flexible hours

Competitive market range

Support for learning and development

Qualificações

• Strong experience with Flutter and Dart building Desktop apps (preferably macOS).
• Proven work reducing CPU/GPU usage in Flutter apps.
• Solid grasp of architectural patterns (MVC/MVVM/Clean).
• Experience with RESTful APIs, WebSockets/Streams, and robust error handling.

Responsabilidades

• Design, build, and maintain the Flutter macOS app.
• Integrate RESTful APIs and real-time services.
• Own quality: unit, widget, and integration tests.

Conhecimentos

Fluent English

Flutter

Dart

macOS development

RESTful APIs

WebRTC

CI/CD

Sentry

Git

Descrição da oferta de emprego

Senior Flutter Developer

Senior Flutter Developer

Location: Remote

Contract: PJ (full-time)

Level: Senior

We’re building a virtual office platform for remote and hybrid teams. It brings together persistent rooms , real-time presence , audio/video (WebRTC) , chat , screen sharing , collaborative boards , and immersive spaces to boost connection, productivity, and team cohesion — all in one place.

The Role

We’re looking for a Senior Flutter Developer focused on macOS Desktop to build and evolve our desktop client. You’ll ship a high-performance, stable, and well-instrumented app that integrates video/audio, real-time features, and collaborative tools—while keeping top-tier code quality, testing, and documentation.

Secondary scope: help maintain Android and iOS builds (feature parity, fixes, and releases).

What You’ll Do

• Design, build, and maintain the Flutter macOS app with clean architecture, modular layers, and reliable state management .
• Integrate RESTful APIs and real-time services (e.g., WebSockets/Streams ).
• Implement A/V features (e.g., flutter_webrtc): device selection, camera/mic permissions, I/O routing, and stability under variable networks.
• Ensure observability end to end: instrument product events/metrics; triage errors with Sentry ; capture UX signals with Microsoft Clarity (session replay/heatmaps) where applicable (web/embedded views); analyze performance traces and dashboards.
• Own quality : unit, widget, and integration tests; CI checks; code reviews; technical docs.
• Handle macOS distribution : code signing & notarization , entitlements, Hardened Runtime , App Sandbox , Keychain; package DMG/PKG ; manage auto-update (e.g., Sparkle).
• Collaborate with Product/Design/QA to refine requirements, edge cases, and acceptance criteria; keep specs tidy in Confluence and PRs clear.
• Attend daily standups in English and other ceremonies (planning, grooming, demos, retros).
• Keep Jira up to date (status, links, attachments) and log time entries (work logs) per task.
• Submit an end-of-day (EOD) daily report in English including: hours worked (per task), what was completed, current task & ETA, blockers, and plan for tomorrow.
• Secondary (Android & iOS): maintain parity when applicable, fix platform-specific issues, help with CI/CD and store releases , monitor crashes/perf via Sentry and review UX insights with Clarity when relevant.

CPU & GPU Optimizations (primary focus)

CPU

• Cut redundant layout/work: avoid heavy logic in build, cache computed values, reduce intrinsic measurements, coalesce events, debounce/throttle streams.
• Move heavy tasks off the UI thread: isolates (compute/custom), lazy JSON parsing, incremental work units.
• Frame scheduling discipline: prevent setState loops; render only when state actually changes.

GPU

• Reduce overdraw/repaints : place RepaintBoundary wisely; optimize CustomPainter (shouldRepaint); avoid large Opacity on complex subtrees.
• Avoid expensive effects: minimize saveLayer , heavy blurs/gradients and big shadows .
• Use right-sized images & filterQuality (low/none when acceptable); limit transforms on large layers.
• Shader jank control: warm up shaders / capture SkSL where applicable; keep fragment shaders simple.
• Pause/disable animations when off-screen; keep animation count/area minimal.

Measurement & Guardrails:

• Profile with Flutter DevTools (CPU/GPU/frame timeline) and add perf budgets (avg CPU%/GPU frame time) to CI gates.
• Track before/after metrics per feature; regressions must be fixed before release.

Must-Haves

• Fluent English (spoken and written): comfortable in daily English standups and writing EOD reports.
• Strong experience with Flutter and Dart building Desktop apps (preferably macOS ).
• Proven work reducing CPU/GPU usage in Flutter apps (ideally desktop/macOS) with measurable before/after results.
• Solid grasp of architectural patterns (MVC/MVVM/Clean ), DI , and state management (BLoC/Riverpod/Provider).
• Hands-on with RESTful APIs , WebSockets/Streams , async/isolates , and robust error handling.
• Firebase (Auth, Firestore, Analytics) or equivalent , Microsoft Clarity (for UX/session insights in web-embedded contexts), and Sentry for error/performance monitoring.
• Git proficiency, code reviews, CI (e.g., GitHub Actions/GitLab CI ), and Jira work logs/time tracking .

Nice to Have

• Deep macOS expertise: signing, notarization , App Sandbox , entitlements, Keychain, packaging, and updater pipelines.
• Practical WebRTC experience; spatial audio; jitter/latency tuning.
• Android/iOS publishing (fastlane or equivalent), push notifications, and in-app review flows.
• Docker , CDN , and networking basics for real-time apps.
• Accessibility (VoiceOver/TalkBack) and internationalization.

Benefits & Environment

• Remote-first, flexible hours, and competitive market range .
• Fast feedback loops, ownership, and a product with real impact on how teams work every day.
• Support for learning, events, and continuous improvement.
• Wellhub (Gympass)
• TotalPass

HCLTech is a global technology company, home to 227,000+ people across 60 countries, delivering industry-leading capabilities centered around digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending September 2022 totaled $12.1 billion.

To learn how we can supercharge progress for you, visit

Requirements :

• Salesforce Implementation and Development
• Design and implement solutions in Salesforce Sales Cloud, Service Cloud, and Manufacturing Cloud.
• Develop custom applications and integrations using Apex, Visualforce, and Lightning Web Components (LWC).
• Utilize Salesforce best practices to ensure high-quality deliverables.
• Customize and configure Salesforce objects, Flow.
• Integrate Salesforce with external systems and applications using APIs, middleware.
• Manage data migration, data quality, and data integrity within Salesforce. - Develop and maintain complex reports and dashboards.
• Proficiency in Apex, Visualforce, Lightning Web Components (LWC), SOQL, and SOSL. - Strong knowledge of Salesforce configurations and customizations.
• Experience with integration tools and APIs (REST/SOAP).
• Familiarity with data migration tools and techniques.
• Understanding of CI/CD processes and tools.

Why choose us?

We are one of the fastest growing technology companies in the world, with more than 60 offices around the world and a global team of 227,000 employees.

Our company is extremely diverse, with 165 nationalities represented.

We offer the opportunity to work with colleagues around the world.

We offer a flexible and remote work environment, prioritizing the integration between work and personal life.

We are committed to your growth, offering learning and career development opportunities at all levels.

We offer comprehensive benefits for all employees.

Certified as "Great Place to Work" and "Top Employer" in 25 countries, recognized as "Top Employer" in Brazil, providing a positive work environment that values employee recognition and respect.

Equality & Opportunity for All

Representing 165 nationalities across the globe, we pride ourselves on being an equal opportunity employer, committed to providing equal employment opportunities to all applicants and employees regardless of race, religion, sex, color, age, national origin, pregnancy, sexual orientation, physical disability or genetic information, military or veteran status, or any other protected classification, in accordance with federal, state, and/or local law.

- .NET Core Apis;

- SQL Server;

- Git;

- Kafka;

- Docker;

- CI/CD.

Senior Frontend Developer

Mojo Trek, an Inc. 5000 company, delivers an unparalleled technology recruitment experience, grounded in transparency and integrity. From midsize technology innovators to Fortune 50 powerhouse corporations, we build technology teams that make a difference. Joining Mojo Trek means being part of a team that influences the tech landscape on a global scale.

*This is a 6+ month contract.

Key Responsibilities

• Collaborate with UI/UX designers to translate wireframes and mockups into responsive, pixel-perfect interfaces.
• Mentor junior developers and provide code reviews to maintain high coding standards.
• Partner with back-end engineers to integrate APIs and ensure smooth data flow between front-end and server-side systems.
• Implement best practices in front-end architecture, reusable components, and modular design patterns.
• Stay up to date with emerging front-end technologies, frameworks, and industry trends.
• Troubleshoot, debug, and resolve front-end issues across different environments and devices.

Qualifications

• 6-8+ years of professional front-end development experience.
• Experience with responsive design, grid systems, and mobile-first development.
• Proficiency in debugging and optimizing front-end performance.
• Knowledge of version control systems (Git) and collaborative development workflows.
• Familiarity with front-end build tools (Webpack, Babel, npm, etc.).
• Understanding of accessibility standards (WCAG, ARIA) and SEO best practices.
• Excellent problem-solving skills, attention to detail, and ability to work in a fast-paced Agile environment.

Nice to Have

• Experience with modern frameworks/libraries such as React, Vue, or Angular.
• Exposure to TypeScript and component-driven development.
• Background in design systems and style guide implementation.
• Understanding of CI/CD pipelines and automated testing (Jest, Mocha, Cypress).

Senior Drupal Developer – Full Time

We are looking for a Senior Drupal Developer to join our team at Tonic3. This is a full-time position for an experienced professional with an advanced level of English who can actively collaborate with international teams and clients.

Key Responsibilities:

• Design, develop, and maintain scalable, high-performance Drupal websites.
• Customize and extend Drupal modules, themes, and APIs according to project needs.
• Work closely with designers, business analysts, and other developers to translate requirements into robust technical solutions.
• Ensure code quality through best practices, code reviews, testing, and documentation.
• Optimize application performance, scalability, and security.
• Participate in agile ceremonies and contribute to continuous improvement of processes and deliverables.
• Provide technical leadership and mentorship to junior developers when needed.

Required Skills & Experience:

• 5+ years of hands-on experience in Drupal development .
• Experience with Drupal theming, custom module development , and site building.
• Familiarity with Agile methodologies and collaboration tools (Jira, Confluence, Git).
• Experience integrating Drupal with third-party systems and APIs.
• Advanced level of English (written and spoken) – able to communicate fluently with international stakeholders.

Nice to Have:

• Experience with Acquia, Composer, Drush, Docker, CI/CD pipelines .
• Knowledge of modern frontend frameworks (React, Angular, Vue).
• Familiarity with cloud hosting environments (AWS, Azure, Pantheon).

Cargo

Senior Java Developer (EST hours)

***Notes: Please share CV in English language / EST working hours - 15:00 - 23:00 CET / notice period of 1.5 months or less / Experience with complex projects is a must) ***

Project Description:

An international Investment Bank is enhancing its IT systems by introducing new technology and integrating with new third-party providers. Several projects will take place in the coming years, focusing on Trading, Market data, and Risk Management.

Responsibilities:

- Communicate with business stakeholders including Traders, Operations and Strats

- Help to understand and translate business requirements into technical design specifications

- Identify technology solutions for enhancements or new initiatives

- Implement unit and integration test cases with industry standard test automation frameworks.

- Document changes necessary to support business.

Mandatory Skills Description:

- 6+ years of enterprise development experience (Java/JDK 8+)

- Experience developing High-Performance and Distributed Applications

- Experience with Message Brokers (ActiveMQ, RabbitMQ, Kafka, or similar)

- Experience with Cache/In-Memory Data Grids (Redis, Hazelcast, or similar)

- Experience with REST/SOAP/gRPC

- Expertise in OOP/OOD

- Expertise in concurrency and multithreading

- Spring (including Spring Boot and Spring Boot Actuator)

- Strong SQL and DB knowledge

- Experience with automated testing (TDD, BDD, Mutation testing)

- Knowledge of common Linux commands

- Experience working on geo-distributed and asynchronous teams

- Exceptional verbal and written communication skills

- High level of self-organization and self-management

- At least B2 English

Nice-to-Have Skills Description:

- Familiarity with job schedulers (Tidal, Control-M, Autosys)

Languages:

Senior React Native Developer

Project Description:

Our Client is one of largest TV providers in North America and we are searching for a Senior Software Developer to join our team. The project focuses on developing mobile application for video streaming platform.

Responsibilities:

You will be implementing new features and enhancing existing functionalities on client applications to support streaming video products. This includes estimation, design, development, testing, and documentation.

Collaborate with other software engineers, product managers, and architects in a cross functional environment to ensure functions and performance meet customer requirements in a cost effective and maintainable way.

Provide on-call support including monitoring, triaging and resolving production issues

Mandatory Skills Description:

- Streaming mobile app development experience with iOS/Android and TV Platforms

- Strong teamwork focus and the ability to foster collaboration within and across teams

- Experience with agile development

- Good verbal/written communications skills

Nice-to-Have Skills Description:

- Experience with a CICD development environment

Languages:

Senior Back End Developer

We are building the world's greatest community of remote technologists.

Organizations that embrace remote work gain access to the brightest minds across the globe. Our clients rely on our community to build or expand their teams with best-in-class remote software engineers, designers, and Agile practitioners—rapidly deployed without compromising on quality.

Join our Remobi community to work on meaningful, innovative freelance projects and help shape how companies operate.

Start Date: ASAP

Location: Anywhere in LATAM

Contract Length - 6 months initially

Contract Type: Freelance / B2B / Contract

Senior Backend Developer (NestJS / Digital Banking Platform)

Position Overview

We are seeking a Senior Backend Developer with 10+ years of experience and deep expertise in NestJS, API architecture, and multi-tenant systems to join our team. You will lead backend development for a next-generation digital banking platform , enabling account creation, secure transfers, real-time dashboards, and deposit tracking.

This is a hands-on leadership role for an engineer who thrives in fast-paced environments, challenges assumptions, and mentors a young and ambitious engineering team while driving backend excellence.

Key Responsibilities

• Design, build, and optimize scalable multi-tenant APIs for a digital banking system.
• Implement secure account creation, transfers, and real-time banking dashboards.
• Lead API architecture discussions, testing (unit, integration, e2e), and deployments.
• Mentor and coach a growing engineering team, instilling best practices in backend systems.
• Facilitate code reviews, technical discussions, and knowledge-sharing sessions.
• Challenge existing approaches and propose better architectural and technical solutions.

Event Streaming & Observability

• Drive the adoption of event streaming (Kafka) for real-time transaction processing.
• Implement strong monitoring, logging, and observability with tools such as Datadog or Grafana.
• Work closely with frontend engineers (React/Next.js, React Native) to deliver seamless banking experiences.
• Contribute to onboarding processes by setting up tools, frameworks, and engineering standards.
• Collaborate cross-functionally with stakeholders to ensure reliable and timely delivery.

Requirements

• 10+ years of experience in backend development.
• Deep expertise with NestJS (architecture, testing, and production deployment).
• Strong background in multi-tenant API systems and scalable backend architectures.
• Experience in financial services or digital banking is highly desirable.
• Hands-on experience with Kafka or similar event streaming platforms.
• Knowledge of observability tools such as Datadog, Grafana .
• Strong leadership, mentoring, and coaching skills.
• Excellent communication skills in both English and Spanish .

Nice-to-Have Skills Description:

- Familiarity with job schedulers (Tidal, Control-M, Autosys)

Languages: