Hardware Engineer Jobs in Sao Paulo.
All active Hardware Engineer roles based in Sao Paulo.
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Staff Engineer, Flight Controls Software
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Archer is an aerospace company based in San Jose, California building an all-electric vertical takeoff and landing aircraft with a mission to advance the benefits of sustainable air mobility. We are designing, manufacturing, and operating an all-electric aircraft that can carry four passengers while producing minimal noise.
Our sights are set high and our problems are hard, and we believe that diversity in the workplace is what makes us smarter, drives better insights, and will ultimately lift us all to success. We are dedicated to cultivating an equitable and inclusive environment that embraces our differences, and supports and celebrates all of our team members.
What you’ll do:
- Develop safety critical software components for Archer’s flight control system.
- Participate in planning, design, scheduling, prioritizing, and tracking the project.
- Work with system engineers to decompose item requirements into high level and low level software requirements in compliance with DO-178C.
- Work with a multi-disciplinary team to develop and integrate the complex hardware/software flight control system.
- Development of software plans, processes & guidelines
- Software requirements decomposition, analysis, definition, and traceability
- Software design and development, performance, risk, safety, operation and cost optimization trade studies, and lead / conduct design reviews
- Software analyses, requirements-based testing, and structural coverage analysis
- Contribute to the continuous improvement of our processes to increase safety and efficiency
- Archer Brazil is based in Sao Paulo, but this role is remote friendly anywhere in Brazil
What you need:
- 5+ years of experience in a flight control software or a related field
- Bachelor of Science in Electrical Engineering, Computer Engineering, Computer Science, or related degree
- Proficiency with C/C++
- Experience with MATLAB/Simulink
- Fluency with widely used scripting languages like bash and Python
- Experience developing software complying with safety standards like DO-178C or ISO 26262 to high criticality levels (DAL-A/B)
- Understanding of communication standards and protocols (RS-422/485, CAN, ARINC-429, AFDX, Ethernet, TCP/IP, etc…)
- Familiarity with debuggers and lab instruments such oscilloscopes and bus analyzers
- Experience with Model Based Software development and certification (DO-331)
- Excellent organizational and communication skills Bonus qualifications
- Experience with VHDL and/or Verilog development
- Familiarity with modeling tools like UML or SysML
- Knowledge of Real Time Operating Systems (RTOS) and multi-threading
- Experience in Linux
- Experience with DO-254
- Experience with tools qualification (DO-330)
At Archer we aim to attract, retain, and motivate talent that possess the skills and leadership necessary to grow our business. We drive a pay-for-performance culture and reward performance that supports the Company’s business strategy.
Information collected and processed as part of any job applications you choose to submit is subject to Archer's Candidate Privacy Policy.
Archer is unable to provide work visa sponsorship for this position at the present time.
Archer is proud to be an Equal Opportunity employer committed to diversity and inclusivity in the workplace. All aspects of employment are decided on the basis of merit, qualifications, and business needs. We do not discriminate based upon race, color, religion, sex, sexual orientation, age, national origin, disability status, protected veteran status, gender identity or any other characteristic protected by federal, state or local laws.
Archer Aviation does not engage with external recruiting agencies/individual recruiters with whom it does not have a prior written agreement. Archer reserves the right to make use of any unsolicited resumes that it receives and bears no responsibility for payment of any fees asserted from the use of unsolicited resumes. If you are a recruiting agency or individual recruiter wishing to do business with Archer, please reach out to People@archer.com. All employment processes are managed by the Archer People Team.
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Junior Infrastructure Engineer (Bare Metal)
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About Telnyx
Telnyx is an industry leader that's not just imagining the future of global connectivity—we're building it. From architecting and amplifying the reach of a private, global, multi-cloud IP network, to bringing hyperlocal edge technology right to your fingertips through intuitive APIs, we're shaping a new era of seamless interconnection between people, devices, and applications.
We're driven by a desire to transform and modernize what's antiquated, automate the manual, and solve real-world problems through innovative connectivity solutions. As a testament to our success, we're proud to stand as a financially stable and profitable company. Our robust profitability allows us not only to invest in pioneering technologies but also to foster an environment of continuous learning and growth for our team.
Our collective vision is a world where borderless connectivity fuels limitless innovation. By joining us, you can be part of laying the foundations for this interconnected future. We're currently seeking passionate individuals who are excited about the opportunity to contribute to an industry-shaping company while growing their own skills and careers.
You will deploy and maintain our edge data centers for compute, AI and storage, contribute to the installation, migration, updates and integration of hypervisor services and modules. Maintain and optimize active projects. Participate in the development process of new projects and document the architecture and components.
Responsibilities
- Design, deploy, and manage highly available, scalable, and secure infrastructure solutions which include: Kubernetes on bare metal, Proxmox and Ceph
- Design and maintain Kubernetes, Ceph and Proxmox platforms for engineering team consumption
- Ensure that hardware design meets business and technical requirements, including performance, scalability, and reliability
- Evaluate and recommend new technologies and tools to improve the efficiency and effectiveness of virtualization solutions
- Ensure the reliability, performance, and scalability of our edge data centers
- Troubleshoot and resolve complex infrastructure issues, ensuring optimal performance and reliability
- Develop and maintain infrastructure-as-code (IaC) modules and configuration management to automate deployment, management, and monitoring processes
Essential Qualifications
- Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
- Proven experience in developing Ansible roles and playbooks with idempotency.
- Proficiency in creating Terraform/Tofu modules.
- Strong GitOps mindset.
- In-depth knowledge of Linux networking
- Strong problem-solving and troubleshooting skills
- Familiarity with KVM/QEMU virtualization.
- Understanding of Ceph storage solutions.
Preferred:
- Experience with VXLAN, software-defined networking, and SR-IOV for smart NICs.
- Familiarity with the BGP protocol and configuring FRR or Bird.
- Experience with Terragrunt.
- Proficiency in using Ansible Tower or AWX.
- Proficiency in Python
#LI-KG1
#LI-Brazil
#LI-ARGENTINA
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Senior IT Engineer – Global Offices Network
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About Us
Nu is one of the largest digital financial platforms in the world, with more than 127 million customers across Brazil, Mexico, and Colombia. Guided by our mission to fight complexity and empower people, we are redefining financial services in Latin America — and this is still just the beginning of the purple future we’re building.
Listed on the New York Stock Exchange (NYSE: NU), we combine proprietary technology, data intelligence, and an efficient operating model to deliver financial products that are simple, accessible, and human. Our impact has been recognized by global rankings such as Time 100 Companies, Fast Company’s Most Innovative Companies, and Forbes World’s Best Bank.
Learn more about our career opportunities here.
About the Role
We are looking for a Senior IT Engineer to design, implement, and operate our global office and data center network. In this role, you will own the connectivity and performance of Nu’s physical locations, ensuring that our offices and data centers are reliable, secure, and ready to support our next waves of growth.
You will work on routing, switching, wireless, security, and observability across our global stack, leading key initiatives such as new office rollouts, critical connectivity improvements, and the evolution towards Infrastructure as Code (IaC). You will be part of the Global Offices Network team, working closely with peers in Connectivity, Security, and Workplace to provide a seamless experience for Nubankers worldwide.
What You’ll Be Responsible For
Network & Connectivity
- Design, implement, and support enterprise network infrastructure for offices and data centers, including routing, switching, and wireless.
- Maintain and evolve high‑availability data center fabrics (e.g., spine‑and‑leaf topologies with Juniper/Cisco hardware).
- Ensure robust connectivity between offices and data centers, including WAN and SD‑WAN solutions, focusing on performance, reliability, and scalability.
Wireless, Load Balancing & Security
- Configure and support wireless networks (controllers and access points), with strong experience in vendors such as Aruba and Cisco.
- Operate and tune load balancers (e.g., F5, including DNS/ZoneRunner concepts) to guarantee optimal application delivery and resilience.
- Collaborate with security teams on Next‑Generation Firewalls (e.g., Palo Alto, Fortinet) and cloud security brokers (e.g., Zscaler) in a “security‑first” network design.
Automation, IaC & Observability
- Drive the transition away from manual configuration towards Infrastructure as Code (IaC) using tools such as GitHub, Terraform, and/or Ansible.
- Implement and maintain network performance monitoring and observability using tools like PRTG, Prometheus, Grafana, SolarWinds or similar, ensuring proactive detection and resolution of incidents.
- Manage PKI-related activities, including SSL/TLS certificate lifecycle and ensuring secure encrypted communications across services and endpoints.
Delivery & Collaboration
- Lead or co‑lead new office implementations and major network changes, coordinating with Workplace, Connectivity, and other partner teams.
- Act as a technical reference for incident response and problem management in critical networking issues, helping restore services quickly and preventing recurrences.
- Document architectures, runbooks, and standards, helping scale knowledge across the team.
- Mentor more junior engineers and collaborate in a multi‑level team (IC6, IC5, IC3, IC4) to continuously improve how we operate our global infrastructure.
We Are Looking for a Person Who Has
- 5+ years of experience in enterprise networking or infrastructure engineering, working with critical environments (e.g., large offices, data centers, or mission‑critical operations).
- Strong hands‑on experience with routing and switching, ideally using vendors such as Cisco and/or Juniper.
- Experience implementing and supporting wireless networks, especially with Aruba and/or Cisco wireless solutions.
- Solid experience operating network monitoring and performance tools (e.g., PRTG, SolarWinds, Prometheus, Grafana or similar) in production environments.
- Experience with load balancers (e.g., F5) and DNS‑related components (e.g., ZoneRunner or equivalent).
- Exposure to network security components, such as enterprise firewalls and/or security brokers, and comfort collaborating with security teams in a “security‑first” posture.
- Experience with or strong interest in Infrastructure as Code (IaC) and automation for network configuration and lifecycle management (e.g., GitHub, Terraform, Ansible).
- Ability to lead initiatives and coordinate teams during new office rollouts, complex changes, and incident response.
- Strong problem‑solving skills, ownership mindset, and ability to work in cross‑functional, multicultural teams.
- Intermediate English (spoken and written), with the ability to participate in meetings and collaborate with global teams.
Nice to Have
- Familiarity with Zero Trust network concepts and security‑driven networking.
- Experience with cloud networking (e.g., connectivity to public clouds) and hybrid environments.
- Experience with security mindset and encryption topics (e.g., secure protocols, network segmentation), even if not your primary specialization.
- Prior experience in distributed or global organizations.
Location
This opportunity is based in Brazil, with a strong preference for candidates who can work from our offices in:
- Rio de Janeiro, Brazil
- Belo Horizonte, Brazil
You will be part of the Brazil Global Offices Network team and collaborate with colleagues in other locations as needed.
Our Benefits – Brazil
For employees based in Brazil, we offer:
- Chance of earning equity at Nubank
- Food/Meal Card (Vale-Refeição and/or Vale-Alimentação)
- Public Transportation Commuting Benefit (Vale-Transporte)
- NuCare – Psychological, Financial and Legal Assistance Program
- Life Insurance
- Medical Plan
- Dental Plan
- NuLanguage – Language Course Program
- Nucleo – Our learning platform of courses
- Extended Parental Leave
- Daycare Allowance
- Parental Consultancy
- Work-from-home Allowance
- Gym Partnerships
- 30 days of paid vacation
- Relocation Assistance Package, if applicable
Work Model for This Role
This role follows our hybrid work model. Our hybrid work model brings us to the office at least 2–3 times per week, on strategic days designed to maximize team connection and collaboration. For more details, visit our article about Nu’s hybrid work model.
Learn More About How We Build Technology at Nu
- building.nubank.com.br
- youtube.com/@building.nubank
- Listen to our stories on Spotify
Ready to apply?
Apply to Nubank