
About OpexAI
About
We at opexAI strive to make business strategies and provide effective solutions to your complex business problems using AI, machine learning and cognitive computing approaches. With a 40+ years experience in analytics and a workforce of highly skilled and certified consultants, we provide a realistic approach to help you chart an optimal path to success.
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Senior BLE Firmware Software Engineer
About Company
https://espressif.com/">Espressif Systems (688018) is a public multinational, fabless semiconductor company established in 2008, with headquarters in Shanghai and offices in Greater China, India and Europe. We have a passionate team of engineers and scientists from all over the world, focused on developing cutting-edge WiFi-and-Bluetooth, low-power IoT solutions. We have created the popular ESP8266 and ESP32 series of chips, modules and development boards. By leveraging wireless computing, we provide green, versatile and cost-effective chipsets. We have always been committed to offering IoT solutions that are secure, robust and power-efficient. By open-sourcing our technology, we aim to enable developers to use Espressif’s technology globally and build smart connected devices. In July 2019, Espressif made its Initial Public Offering on the Sci-Tech Innovation Board (STAR) of the Shanghai Stock Exchange (SSE).
Espressif has opened a Technology Center in Pune (Baner), India, which will focus on embedded software engineering and IoT solutions development for our growing customers.
About the Role
Espressif is looking for Embedded Software Engineers to join the software department located in India. You will work in a diverse team where your colleagues are from Czech, Russia, India, Australia and so forth. Here, you get a chance to be a member of the core team in Espressif and work with talented engineers from all over the world.
The BLE Firmware Development Team is now focused on the development of the Bluetooth 5.x standard and BLE Mesh standard.
BLE FW Team is looking for a self-starting, high-technical, energetic individual with keen attention to details. The Candidate will be actively involved in:
- Development of Bluetooth Low Energy (BLE) Firmware for Espressif Bluetooth chips.
- Development of new firmware for BLE latest specification (BLE 5.x, BLE Mesh, etc).
- Development of BLE chip validation and Bluetooth Qualification.
- Research of cutting-edge and challenging Bluetooth technologies (BLE Audio, BLE Direction Finding, Next-Generation BLE Chip, etc).
- Supporting the existing firmware through feature additions, enhancements and maintenance.
- Working with systems team and cross-functional teams to deliver quality software following well-established software development processes.
- Resolving issues as reported by internal test teams as well as customers.
Requirements
Required skills
- Bachlor's degree or above in Electronic Engineering, Communications Engineering, Automation or other related majors
- Familiarity with Bluetooth Low Energy (BLE) protocol or BLE Mesh protocol
- Proven experience in developing BLE stack / firmware (2+ years, both BLE host and controller) or BLE Mesh stack (2+ years)
- Experience with software engineering processes and the full software development lifecycle including requirements, design, implementation, testing, and documenting in Continuous Integration environment
- Strong experience and proficiency in C programming (3+ years) for embedded platforms required
- Excellent problem solving and debugging skills
Bonus point
- Experience in developing BLE profiles and BLE applications (e.g. HID, ANCS, Homekit, etc)
- Good understanding of other networking protocol stacks is highly desired (e.g. Zigbee, IEEE 802.11, UWB, Lora, NB-IoT, etc)
- Strong Real-time systems and software engineering skills required (e.g. FreeRTOS, etc)
- One or more scripting languages (e.g. Python, etc)
- Experience with variety of software productivity tools (e.g. Git, Jira, etc)
What to expect from our interview process
- The first step is to email your resume or apply to the relevant open position, along with a sample of something you have worked on such as a public GitHub repo or side project etc.
- Next, post shortlisting your profile recruiter will get in touch with you via a mechanism that works for you e.g. via email, phone. This will be a short chat to learn more about your background and interests, to share more about the job and Espressif, and to answer any initial questions you have.
- Successful candidates will then be invited for 2 to 3 rounds of technical interview as per previous round feedback.
- Finally, Successful candidates will have interview with HR.
What you offer us
- Ability to provide technical solutions, support that fosters collaboration and innovation.
- Ability to balance a variety of technical needs and priorities according to Espressif’s growing needs.
What we offer
- An open minded, collaboration culture of enthusiastic technologist.
- Competitive salary
- 100% company paid medical/dental/vision/life coverage
- Frequent trainings by experienced colleagues and chances to take international trips, attend exhibitions, technical meetups and seminars.
About the job
DRONES - Engineers, developers - HARDWARE, SOFTWARE, AND DESIGN
Preferred experience - 1 - 5 years
You would be part of:
- Designing/Improvement of new/existing architectures of distributed computing with subcomponents of Unmanned Aerial Systems (UAS).
- Working/Researching with industrial state of the art sensor systems and modules, and developing drivers (HAL or wrapper) and applications around their usage.
- Design and implementation of communication protocols between different subcomponents of UAS for distributed computing.
- Writing Applications and Drivers from the scratch for (embedded)linux based systems.
- Scripting and automations around work flows of UAS usage.
- Working with existing sophisticated software stacks of subcomponents of UASs.
- Working closely with electronics, design and systems teams for architecture development and deployment.
- Working closely with Flight Controller engineers to do collaborative development of UAVs.
We expect you to be:
- Experienced in hands-on development of complex embedded systems involving multiple microcontrollers or SoCs.
- Very good in analytical abilities to be able to do core research and development activities.
- Able to write low level drivers (wrapper or core) from the scratch.
- Very comfortable reading and understanding datasheets and reference manuals of microcontrollers, peripherals, sensors etc.
- Able to understand existing complex embedded software stack written in C/C++.
- Solid in C.
- Good in C++.
- Comfortable with using hardware debuggers.
- Having Hands-On experience with RTOS concepts like scheduling, threads synchronicity , race conditions etc.
- Having Solid understanding of interrupt mechanisms.
- Experienced in working with different hardware protocols like SPI, I2C, UART, PWM, CAN, USB etc.
- Having Solid understanding of interrupts architecture of ARM based microcontrollers like STM32, LPC etc.
- Having Good understanding of the concept of bootloaders.
- Able to multitask.
- A self-motivated and motivating personality who can work well independently as well as part of a team
- Having good interpersonal and soft skills who can adapt to the work environment while manifesting a good positive attitude
You are awesome if you are:
- Experienced in Linux Device Driver development.
- Having good exposure of working on and understanding of any sensor modules like GPS, LIDAR etc.
- Experienced in data filtering techniques (Example: Kalman filter)
- Knowledge in ML/AI
- capabilities in understanding various drone sectors and adoption
DESIGN : AV/Drone design engineer
Basic Qualifications (Required Skills/Experience):
- Diploma, Bachelor Or Master degree in Mechanical, Aerospace, Aeronautical, Civil disciplines
- Fresher graduates shall be considered for this position based on skillsets and Merit
- 0-5 Years of relevant Work experience.
- Knowledge of structural design, mechanical design, material properties, awareness of Industry standards for structural and mechanical systems design.
- Knowledge of CAD Tools (CATIA, Solid work, Creo, Unigraphics /NX) for Modeling, Drafting & Model Based Definition is essential.
- Able to work under guidance with positive attitude and highest ethics.
Preferred Qualifications (Desired Skills/Experience):
- Good knowledge of New Product development process.
- Knowledge of basics of stress analysis.
- Basic understanding of aircraft and UAV/Drone.
Duties:
• Embedded Software Development in C
•Design and development of software based on Autosar architecture
• Integration & verification of the developed SW components
•Debugging and error analysis
•Create design documents
•Participate in Design & Code reviews
Qualifications:
•University degree in electrical/electronics engineering, computer science or similar
•Minimum 5 years of experience in embedded software development
• Solid C programming skills
• Ideally with Autosar experience
•Knowledge on Functional Safety (ISO 26262)
• Familiar with Vector tools like DaVinci Configurator, Geny, CANoe, etc..
•Knowledge of scripting tools like Python, CAPL, etc.
Designation Offered:
· Software Engineer / Leading Engineer
Job Responsibilities:
· Responsible for designing, coding, and implementing software solutions using modern techniques and programming language
· Provides high-level database development assistance in creating specific applications for businesses
· Provides general support on information technology to design, develop, execute, and maintain the database application systems, applying several RDBMS
· Ensures research and innovation at all levels of the software development process
· May participate in multiple projects simultaneously as a senior development team member
· Functions as technical architect and Subject Matter Expert (SME) on enterprise related software systems
· Performs the role of the principal designer responsible for complex systems and their subsystems employing deep knowledge of current technology and tools, as well as relevant systems that are already existing
· Provides excellent customer service by responding to and assisting with help desk calls to resolving issues, including system outages
· Performs administrative duties as well as some project management tasks.
· Provide guidance and support to Application Developers
· Assist with schema design, code review, SQL query tuning
Experience:
· A minimum of 4 years and maximum of 6 years of relevant experience in a similar role
Qualification:
· Bachelor of Engineering (BTECH / BE) or Masters (MTECH / MS / MCA ) in Computer Science/Electronics/Information Science from reputed institutions
Skills Required:
Mandatory
· Strong skills in PSSQL, MYSQL and MSSQL programming languages
· Strong skills in scalable & large DB application development & field support for customers
· Good experience in MYSQL database, Linux environment development, developing large-scale, multi-tiered, scalable, reliable, and secure network applications
· Knowledge of Optimization & faster bug fixes
· Hands on experience on testing of database i.e., unit testing, stored procedures & trigger testing Etc.,
· Exposure & awareness of Versioning / Configuration & Defect Tracking tools are an added advantage
· Exposure to handling transactions, security, scalability, concurrency and management of the components
· Good in database documentation
· Hands on experience in different types of testing & interfacing with User interfaces (C#, JAVA, Python Etc,.)
Optional
· Knowledge of Splunk database is highly desirable
· Exposure to machine learning (ML) based projects where handled complex queries, written different types of procedures for ML data pre-processing.
· In database machine learning SQL on GPUs

Responsibilities:
You will get a chance to create products from scratch. While you will get the advantage of the scale of the organization, you are expected to come up with creative solutions to challenging problems.
On a typical day, you'd work with highly skilled engineers to solve complex problems. This is an early-stage initiative. Your ability to translate business requirements, and develop and demonstrate quick prototypes or concepts with other technology teams will be of great value.
You will learn and work on a variety of languages such as C/C++, python, and Linux as well as work on BLE, MEMS, biometric sensors, and the latest wireless technologies.
Requirements:
6+ years of Embedded firmware development experience in C/C++
BLE/GPS/GSM/RTOS stack expertise
Hands-on experience with Lab equipment (VNA/RSA/MSO etc).
Testing environment setup using automation scripts and networking equipment, practices for the full software development life cycle, including coding standards, code reviews, source control management, continuous
Familiar with Wireless/IoT network protocols and standards.
Experience with microcontrollers, sensors, and serial communication.
Preferred experience with wearOS/TizenSuperior presentation and communication skills, both written and verbal
Bachelor/Masters's degree in electrical/electronic/communications engineering, information technology, physics, or a related field from
Tier 1 Tier 2 Engineering colleges only (IITs/NITs/IIITs/BITS etc. )
Result-oriented and ready to take ownership. Exhibit strong team
Hands on exp in design , Build and Trouble Shoot genesys contact Center Solutions
Hands on exp working Audio Codes SBC
Exp working in automation - scripting tools like Python , Jenkins, Ansible ,Perl
Exp in SIP Trunks
Exp working in Cisco CUCM, Unity Connections and Voice Gateway routers



About Wise
Wise is digital infrastructure for online education. Oversimplified as ‘Shopify for Tutors’ i.e., an easy to use tool for tutors to start teaching online. We have grown to 2mn users in 12 months and have much to do. We are backed by an incredible set of investors and individuals who have built product you already use. We have a small but rockstar team, cheap equity, smart money, opportunity to capture a huge market ($60bn) and a chance to make an impact while doing so.
What we need
We need you, if you are a senior iOS developer with 4+ years of experience in building robust iOS apps. Work would involve building things quickly and adapting based on market feedback while ensuring the security and quality of the codebase. If you love coding and building things excites you, we would like to talk to you.
What you will need (Skills)
- Proficient with Swift and Cocoa Touch.
- Experience with iOS frameworks such as Core Data, Core Animation, etc.
- Familiarity with Restful APIs to connect iOS applications to back-end services.
- Understanding of Apple's design principles and interface guidelines
- Experience with performance and memory tuning with tools (such as Instruments and Shark, depending on project needs).
- Familiarity with cloud message APIs and push notifications.
- Proficient understanding of code versioning tools such as Git.
- Familiarity with continuous integration.
- Universal application development for both iPhone and iPad.
- Be able to build mobile applications to connect to middleware and applications through web services.
- Have excellent knowledge about the performance optimization of mobile applications.
- Experience with microservice architectures for clean mobile architecture design patterns and best practices.
- Familiarity with unit testing using mocking frameworks Cloud and Cloud infrastructure for backend hosting.
What you will do
- Design and build applications for the iOS platform.
- Ensure the performance, quality and responsiveness of applications.
- Collaborate with the team to define, design & ship new features.
- Identify and correct bottlenecks including fix bugs.
Great to have
- Sense of ownership
- Developers who can talk product and strategy
- Experience in building scalable consumer products
- Strong opinions, loosely held
Good to have
- Interest in mentorship
- Good written communication skills
- Bangalore love
Probably not ideal if
- If you have always been right about stuff in life
- No flexibility around working hours (this doesn’t mean we work long hours but if our systems get attacked in the middle of the night, we would need you to HODORR!)
Definitely get in touch if you
- Would have started the exact same company but willing to build it together with a great team
- Find our current product unbearably slow or inadequate
- Think this company isn’t going to work as it is right now
As an IT Infrastructure Architects design and implement information systems that support an enterprise infrastructure. You will provide the necessary technical infrastructure for the development of new and existing infrastructure technologies and system requirements.
Improve efficiency and streamline operations. enhance design specs, create technical documentation, implement control concepts and deliver expected outcomes. Collect performance data to monitor systems resource usage and failures rates and provide solutions and recommend changes. ensure scalability and anticipate capacity growth through careful planning and awareness of industry, business and client’s growth trends. Design activities rely on accurate data, sensible KPIs and performance metrics to improve processes and bridge gaps
Primary Responsibilities:
Conducting research on emerging and existing technologies. Recommend system alternative technologies and infrastructure development efforts that increase infrastructure flexibility, reliability, stability, scalability, resilience, availability, performance and cost effectiveness. All collective research efforts will contribute to the creation of architectural road maps that leverage software and cloud technologies. Research customer interaction, policy adherence, enterprise processes. May act as the subject matter expert of architectural virtualization.
Needs to guide in execution of Incident, Change, Release, Problem, Performance, and Availability Management
Security of all infrastructure is of paramount importance and is periodically audited, monitored and updated in keeping up with latest threats and risks.
Identifying best practices for future implementation. Architects provide feedback to the enterprise and incorporate all gathered information into future integration plans.
Provides DevOps thought leadership and mentoring in both advisory and delivery contexts, focusing on the requirements of Technology and Business and how these are best served by continuous improvements to our delivery approach
Required Technical skills and Experience
- Over 10+ years of experience as IT Infrastructure Architect
- Bachelor / Masters Degree in Computer Science, Information Technology or related field
- Must have experience in Infrastructure architecting on AWS/ Azure/ Google cloud.
- Should have a very good understanding of Cloud Native services (IaaS, PaaS, SaaS) platforms for application deployment and scalability in a cost effective manner, addresses scalability, availability, service continuity (DR), performance and security requirements. auto-scaling and self-healing.
- Has hands on experience with cloud orchestration using Kubernetes or apache Mesos on marathon would be an advantage
- Evangelizing microservices-based architectures using containerized applications; help to drive strategy and implementation of cloud native infrastructure
- Sound Knowledge of RDBMS, preferably with MYSQL Mongo, Elasticsearch, Redis. Working knowledge of, CDN/WAF
- Proven expertise on Linux, and DevOps tools such as Git, Jenkings, maven, Bamboo Docker, Puppet, Ansible,Kubernetes,terraform. Elastic Beanstalk, Openshift
- Infrastructure security (VPC, tunneling, API management, Governance) and networking security solutions like routing, switching, Firewalls etc.
- Good debugging skills on Linux, Apache, Nginx, PHP, MYSQL and cloud-based application and administration of RHEL, CentOS/Ubuntu
- Experience in Cloud scale APM and Monitoring Tools such as ELK ,Splunk, Nagios, Graffana, XMON Datadog, Dynatrace, Appdynamics, Cloud Monitoring.
- Troubleshoot and debug environment and infrastructure problems found in the production and non-production environments.
- Implements security improvements by assessing current situations; evaluating trends; anticipating requirements.
- Determines security violations and inefficiencies by conducting periodic audits.
- Upgrades system by implementing and maintaining security controls.
- Must have knowledge of leading storage backup solutions.
- Experience with one or more Unix shell scripting languages (Bash, C-Shell)
- Team mentoring and support for ramping up new engineers
- Provide leadership in planning, defining requirements, scoping efforts, and setting appropriate milestones
- Using a data-driven process/mindset, author technical content to support the incident response process (e.g. postmortem/root cause analysis) and develop interim solutions to prevent or quickly resolve issues/problems the next time.
- Experience with networking technologies (routing, switching, IP addressing, DNS, Load balancers, etc.) Knowledge of : - File systems, NFS, CIFS, iSCSI - IPv4 networking, including TCP/IP, SMTP/POP/ IMAP, HTTP/S, LDAP – DNS
- Ability to work independently while tackling complex problems
- Passionate to palm ownership and responsibility of the systems - 24x7

