Critical Start

Senior Software Engineer, COE

Job Locations IN-Pune, Maharashtra
Position Type

Who We Are

Want to be part of a company that empowers you to innovate and implement your powerful ideas as you help shape the future of cybersecurity? Since 2012, CRITICALSTART has assisted in safeguarding numerous businesses from cyberattacks, preparing them for upcoming threats, and earning a plethora of awards along the way. 


We thrive on innovation, devoid of bureaucracy. CRITICALSTART pioneered the first MOBILESOC app for on-the-go threat detection and response, devised a method to automatically resolve the majority of security alerts, and introduced services that reduce alert investigation time by 99.3% (our analysts truly appreciate us for that). 


Everything we do revolves around our three core principles: 


Do what’s best for our customers.  

Do what’s best for our employees. 

Don’t do things that suck. 


That's basically it. 


If you'd prefer to hear from our Critical Crew, watch this video to learn about their perspectives. Look at our Glassdoor reviews for another internal viewpoint (Pssst...want to grab our attention when you submit your resume? Include something about our Glassdoor reviews that resonated with you). 


What can we offer you? 

  • Daily opportunities to make a difference. Whether it's protecting our customers from attacks and breaches or contributing to the greater good. 
  • An abundance of intelligent, talented, high-performing individuals to collaborate with. We value accountability, support each other's growth, and genuinely enjoy what we do. 
  • An approach of continuous improvement to revolutionize our industry and surpass mediocrity. While many cybersecurity companies hire competent individuals, we believe in striving for excellence. Don't you believe you're capable of more than just being good? 
  • Constant learning, unlocking innovative ideas, and a nurturing, cooperative environment. 
  • Extensive industry recognition. We receive so much acclaim that it's nearly overwhelming. Almost. 
  • Our teammate put it best: "Every day presents new challenges and ample opportunities for professional growth... Your contributions directly impact the company's overarching purpose, and the sense of belonging and culture are unparalleled. 

Who You Are

We are seeking a Senior Software Engineer to join the Critical Start Technologies Private Ltd. team, operating under the Critical Start umbrella, for our India operations. As a Senior Software Engineer on the User Experiences Team, you will contribute to the design, development, testing, deployment, maintenance, and enhancement of mobile and browser-based end user experiences (including supporting APIs) used by Critical Start customers and employees.

Critical Start Teams take full ownership for delivering high-quality solutions and continually improving team performance. Team members are expected to be versatile, display leadership qualities, be skilled at working through ambiguity, and enthusiastically deliver delightful solutions for end users, while continuously pushing technology forward.

What You Will Be Doing?

  • Develop, test, and deploy scalable and maintainable web applications using Python, Django, Vue.js, JavaScript, HTML, and CSS3.
  • Design, develop, and maintain microservices to support front-end functionality and mobile applications.
  • Design and develop RESTful APIs to ensure seamless communication between front-end and microservices.
  • Work on API versioning, documentation, and testing to ensure robust and reliable API services.
  • Lead and participate in reviews with peers and stakeholders to decide on solution architecture design.
  • Review code developed by other engineers and provide feedback to ensure best practices (e.g., style guidelines, accuracy, maintainability, testability, and efficiency) and quality of deliverables.
  • Contribute to existing documentation or educational content. Adapt content based on product/program updates and user feedback.
  • Triage, resolve, and determine the root cause of production issues. Form action plans to prevent or minimize the impact of similar issues in the future.
  • Design and automate required workflows using scripting languages (e.g., Python, Shell).

What You Will Bring?

Required Qualifications:

  • Possession of a Bachelor’s degree or an equivalent level of practical experience.
  • 3+ years of hands-on experience in full-stack development using Django, Python, JavaScript, HTML, CSS, Bootstrap, and contemporary UI frameworks (Vue, React, Angular, etc.).
  • 3+ years of practical experience with data structures and algorithms in an industry setting.
  • 2+ years of experience working in an agile environment within an industry setting.
  • 2+ years of proficiency with Git workflow, including pull requests.

Preferred Qualifications:

  • 2+ years of expertise in developing cross-platform mobile applications for Android and iOS devices using Dart and Flutter.
  • Proficiency in developing accessible and responsive mobile and browser-based user experiences.
  • Hands-on experience in managing AWS resources (S3, EC2, ECS, etc.) using Terraform.
  • Possession of a Master's degree or PhD in Computer Science or a related technical field.

What It's Like Working Here

Imagine a dynamic, enjoyable, and rewarding work environment. We are professionals, and the work we do holds immense significance, like saving our customers from potential disasters. However, we believe in not taking ourselves too seriously. 


Prefer a casual dress code every day? No problem, as we find comfort enhances our thinking. 


What does our Compensation and Benefits package entail? 


  • Competitive salary with bonus potential 
  • Flexible PTO (Paid Time Off) policy 
  • Depending on the role, you may work in the office, remotely, or adopt a hybrid work model.  
  • And a new Tesla... just kidding! Kudos for making it to the end. 


Critical Start welcomes people from all backgrounds and walks of life. One of our core values is to “Do what’s best for our employees,” and that starts with the hiring process by finding the best candidates and providing an environment that upholds equal employment opportunities for all employees and applicants, strictly prohibiting any form of discrimination or harassment based on race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. 


This policy encompasses all aspects of employment, including recruitment, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training. 


Mental and Physical Requirements 

It's important to note that specific physical and mental requirements may vary depending on the nature of the office job, organization, and individual responsibilities. 



  • Stationary position for extended periods of time. 
  • Constantly operate a computer.  
  • Occasionally you may be required to move equipment or other items up to 20 lbs. 
  • The ability to communicate information and ideas so others will understand. Must be able to exchange accurate information in these situations. 



  • Must be able to apply established protocols in a timely manner. 
  • Make timely decisions in the context of workflow. 
  • Ability to complete tasks and perform in situations requiring speed deadlines, or productivity quota. 
  • Ability to work effectively and efficiently in high stress situations. 
  • Ability to simultaneously address multiple complex problems. 


How to Apply:  

Interested candidates are invited to visit our career site and apply for the position:




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