Role Overview

As a Principal Software Engineer, you will be responsible for architecting, implementing, and optimizing core system components in C++ that run on our edge devices and host platforms. You will own the end-to-end software design—from real-time signal acquisition to API-level abstractions—and ensure Nexstem’s platform is performant, reliable, and scalable.You will also be expected to provide technical leadership, mentor engineers, and work cross-functionally with hardware, firmware, and AI/algorithm teams.

Key Responsibilities

1. System Architecture & Design

   • Architect modular, extensible software frameworks for BCI hardware and companion applications.

   • Define system-level interfaces between hardware, firmware, signal-processing, and APIs.

   • Make critical design trade-offs balancing performance, scalability, and maintainability.

2. Core Development

   • Develop high-performance C++ software (C++14/17/20) with a focus on low-latency, multi-threaded, and memory-efficient applications.

   • Implement hardware drivers, communication protocols, and real-time signal acquisition pipelines.

   • Build abstractions and libraries that expose Nexstem’s hardware capabilities to higher-level SDKs and APIs.

   • Be strong in core Computer Science fundamentals and architecture.

3. Hardware-Software Integration

   • Collaborate with hardware engineers on device drivers, data acquisition interfaces, and embedded systems.

   • Optimize performance on embedded processors, FPGAs, Linux-based systems, and edge computing devices.

4. Performance & Reliability

   • Profile and optimize system performance across CPU/GPU/accelerator architectures.

   • Implement reliability, fault-tolerance, and recovery mechanisms for production-grade deployments.

5. Mentorship & Leadership

   • Set coding standards, best practices, and CI/CD workflows for the engineering team.

   • Mentor junior and mid-level engineers in C++, software design, and system thinking.

6. Innovation & Research Alignment

   • Stay up-to-date with advances in real-time computing, compilers, and systems programming.

   • Collaborate with algorithm and AI researchers to translate signal-processing pipelines into efficient runtime implementations.

Requirements
Education

• Master’s degree in Computer Science & Engineering or a related field.

• (Bachelor’s with an exceptional track record may be considered).

Experience

• 5+ years of professional experience in C++ system-level development.

• Proven track record in designing and delivering complex, production-grade software systems.

Technical Skills

• Expert-level C++ (C++14/17/20): STL, templates, modern design patterns.

• Strong knowledge of multi-threading, concurrency, synchronization, and memory management.

• Experience writing low-level code: device drivers, firmware interfaces, or embedded Linux/RTOS.

• Deep understanding and experience in Linux Kernel development and low-level operating system concepts.

• Familiarity with hardware communication protocols (USB, BLE, Wi-Fi, nRF, SPI, I2C, etc.).

• Experience in performance optimization, debugging tools (gdb, valgrind, perf), and profiling.

• Exposure to real-time systems, signal acquisition, or streaming data pipelines.

Bonus Skills (Good to Have)

• GPU programming (CUDA, OpenCL, Vulkan compute).

• Experience integrating C++ with Python or Rust in hybrid pipelines.

• Prior work in neurotech, robotics, IoT, or other real-time hardware-adjacent domains.

• Familiarity with numerical methods, DSP, or machine learning integration.

Soft Skills

• Strong systems thinking: can see the big picture and design for scalability.

• Exceptional problem-solving skills under performance/latency constraints.

• Ability to work cross-functionally with hardware, AI, and product teams.

• Clear communicator who can mentor, document, and lead by example.

Compensation & Benefits

• Competitive compensation with growth opportunities.

• Opportunity to define and shape the core software architecture for a cutting-edge neurotech platform.

• Work alongside an elite team at the intersection of hardware, neuroscience, and AI.

• Flat hierarchy, ownership-driven culture, and the freedom to experiment and innovate.

Apply: Link

Role Overview:
We’re looking for a passionate, creative, and detail-oriented Mechanical Designer to join the Nexstem team. You will work closely with our engineering, product, and NPD team to engineer the products that are not only cutting-edge in technology but also user-centric and aesthetically pleasing. Your primary focus will be on bringing the product functional and easily manufacturable.

Key Responsibilities

• Experience-Led Design: Craft intuitive physical interactions through refined features and touchpoints that enhance overall Design for Manufacturing and Assembly (DFMA), optimized for both mass production and prototyping phases.

• Concepts & Ideation: Generate innovative design concepts through advanced CAD modeling, exploring multiple design directions to solve complex mechanical and manufacturing challenges.

• 3D Modeling & Prototyping: Develop high-fidelity CAD models and functional physical prototypes for rapid iteration, with focus on mechanical fit, ergonomic skin contact, and precise sensor integration for optimal bio-signal capture.

• Mechanical Design & DFM: Engineer components, assemblies, and enclosures for manufacturability, with meticulous attention to tight tolerances critical for sensor accuracy, signal integrity, and user comfort.

• Materials & Process Engineering: Select and validate biocompatible, durable, and high-performance materials suitable for biosignal acquisition devices, including skin-safe plastics, flexible substrates, conductive materials, and moisture-resistant finishes.

• Creative Engineering Solutions: Develop innovative, scalable, and user-safe solutions to address unique design constraints posed by human-machine interfaces, including electrode placement, signal noise reduction, and wearable ergonomics.

• Cross-Functional Collaboration: Partner closely with neuroscientists, electrical engineers, industrial designers, firmware developers, and manufacturing teams to ensure seamless integration of mechanical, electronic, and user experience elements.

• Vendor & Production Liaison: Manage relationships with suppliers and contract manufacturers to coordinate prototyping, tooling, and scaling of components involving bio-acquisition hardware (e.g., dry electrodes, flex circuits, sensor housings, wearable straps).

• Technical Documentation: Create comprehensive engineering documentation including CAD drawings, BOMs, assembly instructions, and specifications that support regulatory compliance, design validation, and repeatable manufacturing of sensor-integrated wearables.

• Design Validation & Iteration: Conduct mechanical testing, design validation and drive continuous improvement based on real-world feedback.

Skills & Qualifications

Core Requirements

• Education: Bachelor’s or Master’s degree in Mechanical Engineering, Product Design, Mechatronics, or a closely related field — or equivalent practical experience.

• Experience: Minimum 2 years of experience in developing physical products, with strong preference for work in bio-acquisition wearables, medical devices, or BCIs.

• Portfolio: A strong portfolio demonstrating end-to-end product development—including contributions to mechanically sound, sensor-integrated, and production-ready wearable solutions.

• Technical Tools: Expertise in PTC Creo, SolidWorks or Fusion 360 and proficiency with 3D prototyping techniques (e.g., 3D printing, CNC).

• Manufacturing Expertise: Proven experience with DFM/DFA, plastic injection molding, GFF molding, sheet metal, tolerancing, and assembly techniques suitable for precision fit around the human body.

• Team Collaboration: Strong history of working closely with engineering, neuroscience, and industrial design teams to translate design intent into manufacturable, high-performance products.

• Problem Solving: Methodical, iterative approach to design challenges—balancing user needs, technical feasibility, Manufacturability and regulatory considerations.

• Manufacturing Interface: Experience liaising with vendors and suppliers for wearable and sensor-integrated component production, managing risk and ensuring quality.

• Communication: Excellent skills in presenting design rationale, engineering trade-offs, and user research findings to multidisciplinary stakeholders.

Bonus Qualifications

• Biosignal Product Experience: Prior work in bio-acquisition products such as EEG, EMG, ECG, or other physiological monitoring devices is a significant advantage.

• Innovative Mindset: Passion for bringing life to cutting-edge, ergonomic, and reliable wearable technology inside the product that blends seamlessly into users’ lives while delivering measurable impact.
  
  

Apply: Link

About the Role

At Nexstem, we are looking for a driven and creative Growth & Marketing Associate — someone who’s hands-on, resourceful, and excited to shape the brand voice of a frontier deeptech startup. This role is for people who want to work across product marketing, growth, and community — not just content. You’ll be the go-to person for all things marketing and play a key role in how the world sees us, how users find us, and how customers trust us.

Job Responsibilities

• Product Marketing: Translate complex neurotech into clear positioning, messaging, and go-to-market assets (web copy, pitch decks, product one-pagers).

• Growth & Demand Gen: Plan and run campaigns across LinkedIn, newsletters, and niche communities to generate traction and leads. Support outreach to hospitals, universities, and enterprises partners.

• Community Building: Host/organize events, build relationships with researchers and founders, and grow our presence in neurotech and healthtech circles.

• Content & Social Media: Create engaging posts, blogs, and newsletters; manage our social presence across all digital channels (LinkedIn, Twitter, Instagram, Youtube, Google Ads, Discord, etc.); repurpose founder and research content.

• Market Research: Track competitor activities, analyze trends, and suggest strategies to position Nexstem effectively.

• Analytics: Monitor growth campaigns, report performance, and experiment with new ideas.

Preferred Skills

• Strong interest or past exposure to product marketing, growth, and community building.

• Ability to create engaging content (written, visual, or both) but not limited to it — you’ve done more than “just content writing.”

• Knowledge of digital marketing basics (social media ads, SEO/SEM, Google Ads, LinkedIn Campaign Manager).

• Strong analytical skills - comfortable in Excel/Google Sheets and analytics dashboards.

• Creative thinking with attention to detail

• Creative, proactive, detail-oriented, and comfortable wearing multiple hats in a startup environment.

• (Nice-to-have) A portfolio, side project, or examples of past work that show you can take ownership.

Qualifications

• 0–2 years of experience in product or growth marketing, branding, or related fields (internships or projects count).

• Bachelor’s degree in Marketing, Business, Communications, or any relevant field (preferred, not mandatory).

• Passion for marketing, willingness to learn quickly, and ability to take end-to-end ownership of projects

• Freshers will be considered only if they can show strong supporting work (portfolio, side projects, event/community work).

Apply: Link