

A BIT ABOUT US
Appknox is one of the top Mobile Application security companies recognized by Gartner and G2. A profitable B2B SaaS startup headquartered in Singapore & working from Bengaluru.
The primary goal of Appknox is to help businesses and mobile developers secure their mobile applications with a focus on delivery speed and high-quality security audits.
Our business includes Fortune 500 companies with Major brands spread across regions like India, South-East Asia, Middle-East, Japan, US, and expanding rapidly.
The Opportunity:
We are seeking a highly skilled Senior Software Engineer (Backend) to join our dynamic software development team. In this role, you will contribute to key backend projects, collaborate across teams, and play a vital part in delivering robust, scalable, and high-performance software solutions. As a senior engineer, you will work independently, make impactful technical decisions, and help shape the backend architecture while collaborating with a passionate, high-performing team.
You will work hands-on with products primarily built in Python, with opportunities to contribute to Golang. These technologies are at the core of our development stack, and your focus will be on building, scaling, and maintaining distributed services. Distributed systems are integral to our architecture, providing a chance to gain hands-on experience with maintaining and optimizing them in a fast-paced environment.
As a Senior Engineer, you are expected to:
- Write clean, maintainable, and testable code while following best practices.
- Architect solutions, address complex problems, and deliver well-thought-out technical designs.
- Take ownership of assigned modules and features, delivering them with minimal supervision.
- Contribute to code reviews and technical discussions, ensuring high-quality deliverables.
We highly value open source contributions and encourage you to check out our work on GitHub at Appknox GitHub. While no prior experience in security is required, our experienced security professionals are available to support you in understanding the domain.
This role offers a unique opportunity to work on cutting-edge technology, drive impactful solutions, and grow within a collaborative environment that values autonomy, innovation, and technical excellence.
Responsibilities:
- Drive backend development for a disruptive product in the Security domain, focusing on innovation, performance, scalability, and maintainability.
- Take ownership of the software design process, including designing workflows, system architecture, and implementation plans.
- Translate functional and technical requirements into detailed architecture and design, making independent decisions to ensure efficiency and scalability.
- Collaborate with cross-functional teams, including frontend and security teams, to deliver cohesive and high-quality solutions.
- Conduct thorough code reviews to ensure adherence to best practices, maintainability, and coding standards.
- Write clean, maintainable, and testable code using Django and Python, adhering to industry best practices.
- Design and implement scalable software components, frameworks, and APIs using Django and Django REST Framework (DRF).
- Troubleshoot, debug, and optimize existing systems to improve functionality and performance.
- Create detailed technical documentation, including flowcharts, layouts, and system requirements, to ensure clarity and alignment.
- Develop and enforce robust software verification plans, quality assurance procedures, and deployment strategies.
- Ensure timely delivery of software updates while addressing user feedback to enhance solutions.
- Provide technical expertise to solve backend challenges and participate in critical decision-making processes.
- Support team growth by sharing knowledge, fostering collaboration, and mentoring junior engineers informally as needed.
Requirements:
- 5–6 years of professional experience in backend development with a strong focus on Django and Python.
- Proficiency in Django REST Framework (DRF), relational databases, SQL, and ORMs (e.g., Django ORM, SQLAlchemy).
- Strong problem-solving skills with the ability to make independent technical decisions regarding system design and implementation.
- Hands-on experience in designing and developing scalable, maintainable, and high-performing backend systems.
- Deep understanding of software engineering practices, including Test-Driven Development (TDD), CI/CD pipelines, and deployment processes.
- Excellent communication skills, with the ability to document and present technical specifications and workflows clearly.
- Familiarity with cloud infrastructure, deployment pipelines, and microservices architectures is a bonus.
- Self-motivated and capable of working independently in a fast-paced environment with minimal supervision.
- Ability to handle ambiguity and adapt to rapidly changing business needs while maintaining focus on delivering quality solutions.
Work Expectations:
Within 1 month-
- Attend KT sessions conducted by the engineering and product teams to gain a deep understanding of the product, its architecture, and workflows.
- Learn about the team's development processes, tools, and key challenges.
- Work closely with the product team to understand product requirements and contribute to the design and development of features.
- Dive deep into the existing backend architecture, including database structures, APIs, and integration points, to fully understand the technical landscape
- Begin addressing minor technical challenges and bugs, while understanding the underlying architecture and tech stack.
- Begin to participate in creating action plans for new features, ensuring that design and implementation are aligned with product goals.
Within 3 months-
- Achieve full autonomy in working on the codebase, demonstrating the ability to independently deliver high-quality features from design to deployment.
- Take complete ownership of critical modules, ensuring they are optimized for performance and maintainability.
- Act as a technical resource for the team, offering support and guidance to peers on complex issues.
- Collaborate with DevOps to optimize deployment pipelines, debug production issues, and improve backend infrastructure.
- Lead discussions for technical solutions and provide recommendations for architectural improvements.
- Contribute to the design of new features by translating functional requirements into detailed technical specifications.
- Prepare regular updates on assigned tasks and communicate effectively with the engineering manager and other stakeholders.
Within 6 months-
- Be fully independent in their development tasks, contributing to key features and solving critical challenges.
- Demonstrate strong problem-solving skills and the ability to take ownership of technical modules.
- Actively participate in code reviews and technical discussions, ensuring high-quality deliverables.
- Collaborate seamlessly with cross-functional teams to align technical solutions with business requirements.
- Establish themselves as a reliable and proactive team member, contributing to the team’s growth and success.
Personality traits we really admire :-
- Great attitude to ask questions, learn and suggest process improvements.
- Has attention to details and helps identify edge cases.
- Highly motivated and coming up with ideas and perspective to help us move towards our goals faster.
- Follows timelines and absolute commitment to deadlines.
Interview Process
- Round 1 Interview - Profile Evaluation
- Round 2 Interview - Assignment Evaluation
- Round 3 Interview - Engineering Team & Technical Founder
- Round 4 Interview - HR
Compensation
- Best in industry
We prefer that every employee also holds equity in the company. In this role, you will be awarded equity after 12 months, based on the impact you have created.
Please be aware that all your customers are Enterprises and Fortune 500 companies.
Why Join Us :-
- Freedom & Responsibility: If you are a person who enjoys challenging work & pushing your boundaries, then this is the right place for you. We appreciate new ideas & ownership as well as flexibility with working hours.
- Great Salary & Equity: We keep up with the market standards & provide pay packages considering updated standards. Also as Appknox continues to grow, you’ll have a great opportunity to earn more & grow with us. Moreover, we also provide equity options for our top performers.
- Holistic Growth: We foster a culture of continuous learning and take a much more holistic approach to training and developing our assets: the employees. We shall also support you all on that journey of yours.
- Transparency: Being a part of a start-up is an amazing experience one of the reasons being the open communication & transparency at multiple levels. Working with Appknox will give you the opportunity to experience it all first hand.
- Health insurance: We offer health insurance coverage upto 5 Lacs for you and your family including parents.

About Appknox
About
Appknox, a leading mobile app security solution HQ in Singapore & Bangalore was founded by Harshit Agarwal and Subho Halder.
Since its inception, Appknox has become one of the go-to security solutions with the most powerful plug-and-play security platform, enabling security researchers, developers, and enterprises to build safe and secure mobile ecosystems using a system-plus human approach.
Appknox offers VA+PT solutions ( Vulnerability Assessment + Penetration Testing ) that provide end-to-end mobile application security and testing strategies to Fortune 500, SMB and Large Enterprises Globally helping businesses and mobile developers make their mobile apps more secure, thus not only enhancing protection for their customers but also for their own brand.
During the course of 9 years, Appknox has scaled up to work with some major brands in India, South-East Asia, Middle-East, Japan, and the US and has also successfully enabled some of the top government agencies with its On-Premise deployments & compliance testing. Appknox helps 500+ Enterprises which includes 20+ Fortune 1000 and ministries/regulators across 10+ countries and some of the top banks across 20+ countries.
A champion of Value SaaS, with its customer and security-first approach Appknox has won many awards and recognitions from G2, and Gartner and is one of the top mobile app security vendors in its 2021 Application security Hype Cycle report.
Our forward-leaning, pioneering spirit is backed by SeedPlus, JFDI Asia, Microsoft Ventures, and Cisco Launchpad and a legacy of expertise that began at the dawn of 2014.
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Key Responsibilities:
- Software Development:
- Design, implement, and optimise clean, scalable, and reliable code across [backend/frontend/full-stack] systems.
- Contribute to the development of micro services, APIs, or UI components as per the project requirements.
- System Architecture:
- Collaborate and design and enhance system architecture.
- Analyse and identify opportunities for performance improvements and scalability.
- Code Reviews and Mentorship:
- Conduct thorough code reviews to ensure code quality, maintainability, and adherence to best practices.
- Mentor and support junior developers, fostering a culture of learning and growth.
- Agile Collaboration:
- Work within an Agile/Scrum framework, participating in sprint planning, daily stand-ups, and retrospectives.
- Collaborate with Carbon Science, Designer, and other stakeholders to translate requirements into technical solutions.
- Problem-Solving:
- Investigate, troubleshoot, and resolve complex issues in production and development environments.
- Contribute to incident management and root cause analysis to improve system reliability.
- Continuous Improvement:
- Stay up-to-date with emerging technologies and industry trends.
- Propose and implement improvements to existing codebases, tools, and development processes.
Qualifications:
Must-Have:
- Experience: 2–5 years of professional software development experience in [specify languages/tools, e.g., Java, Python, JavaScript, etc.].
- Education: Bachelor’s degree in Computer Science, Engineering, or equivalent experience.
- Technical Skills:
- Strong proficiency in [programming languages/frameworks/tools].
- Experience with cloud platforms like AWS, Azure, or GCP.
- Knowledge of version control tools (e.g., Git) and CI/CD pipelines.
- Understanding of data structures, algorithms, and system design principles.
Nice-to-Have:
- Experience with containerisation (e.g., Docker) and orchestration tools (e.g., Kubernetes).
- Knowledge of database technologies (SQL and NoSQL).
Soft Skills:
- Strong analytical and problem-solving skills.
- Excellent written and verbal communication skills.
- Ability to work in a fast-paced environment and manage multiple priorities effectively.
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Key Responsibilities
Backend Development: Design, develop, and maintain backend services and APIs using Python (Django or Flask).
On-Prem Deployment: Install, configure, and manage software on on-premises hardware, including servers and networking equipment.
Database Management: Design database schemas, write efficient queries, and optimize data access layers (PostgreSQL, MySQL, etc.).
API Integration: Implement and maintain RESTful APIs and integrate with third-party services.
Troubleshooting & Debugging: Diagnose and resolve application and infrastructure issues to ensure high availability.
Version Control & CI/CD: Use Git for version control and contribute to continuous integration and delivery pipelines (GitHub Actions, Jenkins, etc.).
Security & Compliance: Work with the team to ensure software and infrastructure meet security and compliance requirements.
Documentation: Maintain clear, comprehensive documentation for your code, configurations, and on-prem deployment processes.


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About your Team
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• Must have at least 4 years of experience
• Must have expertise in Python or C++ development
• Must be pragmatic
• Must have excellent written, oral and telephone communication skills in English.
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They are growing global with their presence in 6 countries like India, Ukraine, Kenya, Bangladesh, Philippines and Pakistan.They boast a round the clock customer support team to resolve the problems and queries of freelancers from across the globe.
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- Developing and deploying new features to facilitate related procedures and tools if necessary
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- Must have a PHP experience or a full stack development experience.
- B.Tech / M.Tech from any college.
- Good understanding of RESTful API development.
- Good knowledge of TDD (Test Driven Development).
- Good understanding of jQuery, Bootstrap.
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About the job
We focus on client adoption of disruptive technologies, technology architecture and providing specialized skills related to integration, custom software engineering, testing, application modernization, agile and more. We help our clients with the most complex projects including working in open web platforms, DevOps platforms as well as intelligent Computing and Architecture enhancement.
We are looking for hands on, smart thinking Applications developer to join our fast-growing team of talented professionals. You will have the opportunity to work on large enterprise solutions and deliver solutions that deliver business performance for our customers.
WORK YOU’LL DO
- Design and develop microservices/APIs using either Java/Spring boot, ISTIO, Kubernetes, Docker, CI / CD Pipelines
- You would scale micro services using Kafka or similar messaging systems.
- Collaborate with clients, architects, and application architectures to understand the operational objectives and purpose of the future system integration.
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- Collaborate with Functional Designers and Developers in order to find best solutions
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- Assist in producing solutions with threat assessments and associated security awareness.
WHAT WE ARE LOOKING FOR
- 5- 8 years of hands-on experience designing and developing microservices using either Java/Spring Boot
- 3-5 years of experience with system integration
- Minimum of 3 years of relevant experience with API concepts and technologies such as REST, JSON, XML, SOAP, YAML, GraphQL, and Swagger
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- Good knowledge of integration architectures
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Notice Period- Immediate/1months/ 2 months negotiable


