Principal Software Engineer / SSE

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 Staff Engineer (Backend) to join our dynamic software development team. In this role, you will take ownership of key backend projects, drive cross-functional collaborations, and lead efforts to deliver robust, scalable, and high-performance software solutions. You will be focused on solving complex problems and influencing technical strategy across multiple teams. As a engineering leader, you will have the autonomy to make technical decisions, define project scope, and guide the direction of backend architecture while working with a passionate, high-performing team.

You will be working hands-on with products built on Python, with additional contributions in Golang and Rust. These technologies are central to our development stack, and your focus will be on developing, scaling, and maintaining distributed services. A core part of our architecture involves distributed systems, so you will gain in-depth experience in maintaining, optimizing, and scaling these systems in a fast-paced environment.

As a lead engineer, we expect you to not only code but also architect solutions, make independent technical decisions, and navigate complex problem spaces. You will be trusted with significant ownership, and your expertise will play a key role in shaping the future of our product and technology stack.

We strongly value open source contributions, and encourage you to check out our work on GitHub at Appknox GitHub. While we have experienced security professionals onboard to guide you, a background in security is not required for this position.

Responsibilities:

• Lead the backend development for a disruptive product in the Security domain, driving innovation while improving performance, scalability, and maintainability.
• Own the software design process, including designing workflows, system architecture, and feature implementation plans.
• Ensure timely delivery of high-quality software solutions by coordinating sprints, planning releases, and managing cross-team dependencies.
• Translate functional and technical requirements into detailed architecture and design, taking independent decisions to ensure efficiency and scalability.
• Collaborate with cross-functional teams, providing guidance and support to developers to ensure high-quality deliverables.
• Conduct thorough code reviews to ensure code quality, maintainability, and adherence to best practices, while mentoring team members in coding standards
• Write clean, maintainable, and testable code, adhering to best practices and coding standards.
• Design and implement software components, frameworks, and APIs using Django and Python.
• Create flowcharts, layouts, and documentation to identify system requirements and solutions.
• Develop and enforce robust software verification plans, quality assurance procedures, and deployment strategies.
• Troubleshoot, debug, and upgrade existing systems to enhance functionality and performance.
• Ensure regular updates, maintain software systems, and evaluate user feedback to improve solutions.
• Mentor and guide junior engineers, fostering a collaborative and growth-oriented environment.
• Act as the go-to expert for backend technical challenges, driving solutions and decision-making processes across the team.

Requirements:

• 5–8 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 and ability to make independent 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 methodologies, including Test-Driven Development (TDD) and CI/CD practices.
• Strong communication skills, with the ability to document technical specifications and workflows clearly.
• Proven ability to lead and mentor a small team of engineers, providing technical guidance and support without formal people management responsibilities.
• Familiarity with cloud infrastructure, deployment pipelines, and microservices architectures is a bonus.
• Self-driven and able to operate autonomously in a fast-paced environment
• Able to handle ambiguity and adapt to rapidly changing business needs.

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 tasks, 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 2 months

• Take ownership of specific features or modules within the codebase, including the responsibility for their design, development, and delivery.
• Begin identifying potential areas for improvement in the codebase and propose strategies for optimization and scalability.
• Conduct code reviews to ensure high-quality deliverables while mentoring team members on coding standards and best practices.
• Collaborate with cross-functional teams (e.g., frontend, DevOps, QA) to align technical implementation with business objectives.
• Develop technical documentation for the assigned modules or features, ensuring maintainability and ease of onboarding for new engineers.
• Start contributing to the sprint planning process by estimating effort, identifying dependencies, and mitigating risks.

Within 3 months

• Take complete control of the codebase, demonstrating the ability to work independently and make critical decisions on system design and implementation.
• Lead the development and delivery of key features, ensuring they meet performance, scalability, and maintainability requirements.
• Act as a technical mentor for the team by guiding junior engineers and providing support to peers when needed.
• Drive cross-team collaboration, ensuring smooth communication between engineering, DevOps, and product teams.
• Lead and own the technical discussions for new features, contributing to architectural decisions and resolving technical challenges.
• Monitor and improve development processes, suggesting tools or methodologies to enhance team productivity and software quality.
• Prepare and deliver regular updates to stakeholders on project progress, risks, and mitigation strategies.

Within 5-6 months

• Be fully autonomous in the codebase and capable of leading a small team of engineers.
• Demonstrate strong decision-making skills and the ability to deliver high-quality features independently.
• Establish themselves as the go-to expert for the backend codebase and act as the technical POC for cross-functional teams.
• Play a pivotal role in enhancing team productivity and aligning technical solutions with business needs.

Personality traits we really admire:

• Great attitude to ask questions, learn and suggest process improvements.
• Follows timelines and absolute commitment to deadlines.
• 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 - TA Profile Evaluation
• Round 2 Interview - Assignment Evaluation
• Round 3 Interview - Engineering Team & Technical Founder
• Round 4 Interview - HR

Compensation:

• As per Industry Standards

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 family health insurance coverage to employees.

• Software Engineering
  • Design and develop highly scalable, available, reliable, secure and fault tolerant systems with minimal guidance for a market leader in the logistics industry
  • Partner with team members on functional and nonfunctional requirements and spread design philosophy, goals and improve the code quality across the team
  • Research new technologies and tools that enable building the next generation of our services
  • Provide technology leadership to the team and foster engineering excellence
• Product Delivery
  • Partner with product managers to define and execute on the feature roadmap
  • Translate business requirements into scalable and extensible design
  • Coordinate with various cross functional teams on planning and execution
  • Maintaining automated build / test / deployment environments

• Software Engineering
  • Should have at least 3 years of hands-on experience in designing, developing, testing and deploying applications on Java, Ruby, Kotlin, Python, Node or Go for large scale applications
  • Deep knowledge of one of the programming languages they have experience in
  • Proficient in OOP and Design Patterns, experience with functional programming would be a plus
  • Data modelling experience in Relational Databases
  • Ability to design and implement low latency RESTful services
• Product Delivery
  • Ability to scope, review and refine user stories for technical completeness and to alleviate dependency
  • Well versed in working with agile methodologies which includes phases such as design, development, code review, testing and release management
  • Ability to have worked in a CI/CD environment, with hands on experience with Git or any similar source code management tools
• Product Maintenance

• Experience troubleshooting server performance issues such as memory tuning, GC tuning, resource leaks
• Continuously refactor applications to ensure high quality design

At F5, we strive to bring a better digital world to life. Our teams empower organizations across the globe to create, secure, and run applications that enhance how we experience our evolving digital world. We are passionate about cybersecurity, from protecting consumers from fraud to enabling companies to focus on innovation.
Everything we do centers around people. That means we obsess over how to make the lives of our customers, and their customers, better. And it means we prioritize a diverse F5 community where each individual can thrive.

F5, Inc. is seeking a Software Engineer III with experience in building highly available and highly scalable services on public cloud like AWS, Azure and GCP. In this role you will help develop networking and security technologies as a service (SaaS) to solve customers’ multi-cloud problem. You will be part of Cloud Orchestration team working on F5 Distributed Cloud platform.

Primary Responsibilities 

• Design and development of highly available and highly scalable services using public cloud and F5 Distributed Cloud services.

• Understand product requirements related to multi-cloud and propose solutions.

• Follow software development lifecycle for feature development i.e., design, develop, test and support the features

• Creating prototypes to validate use cases and get feedback from product team and architects.

• Work cohesively with geographically distributed team

Knowledge, Skills and Abilities

• Experience in designing and implementing solutions for services in public cloud

• Experience in developing software in a SaaS environment

• Extensive hands-on experience in using Infrastructure as code (IsC) tools like terraform (preferred), cloud formation etc

• Extensive hands-on experience in programming languages such as Golang(preferred), python, Java, Rust

• Solid understanding of AWS VPC Networking Services like Transit Gateway, Virtual Private Gateway, Direct Connect, Gateway Load balancer, Private link etc.

• Solid understanding of Azure Networking Services like Virtual Network (Vnet), Express route, Azure load balancers etc

• Solid understanding of GCP networking services

• Good understanding and experience in L2 to L7 networking protocols including but not limited to Ethernet, TCP/IP, VLAN, BGP, HTTP

• Good understanding of container technologies such as Docker, Kubernetes etc.,

• Working knowledge of CI/CD tools like GitLab, Argo

• Ability to implement all phases of a development cycle for a software product from understanding requirements, going through design, development and deploy phases

• Self-motivated and willing to delve into new areas and take on new challenges in a proactive manner

• Excellent written and verbal communication skills.

Qualifications

• Minimum of 5 years of related experience with a Bachelor's degree in Computer Science/related field 

• Conducting analysis of website and application requirements.
• Writing back-end code and building efficient PHP modules.
• Developing back-end portals with an optimized database.
• Troubleshooting application and code issues.
• Integrating data storage solutions.
• Responding to integration requests from front-end developers.
• Finalizing back-end features and testing web applications.
• Updating and altering application features to enhance performance.

• Bachelor’s degree in computer science or a similar field.
• Knowledge of PHP web frameworks including Yii, Laravel, and CodeIgniter.
• Knowledge of front-end technologies including CSS3, JavaScript, and HTML5.
• Understanding of object-oriented PHP programming.
• Previous experience creating scalable applications.
• Proficient with code versioning tools including Git, Mercurial, CVS, and SVN.
• Familiarity with SQL/NoSQL databases.
• Ability to project manage.
• Good problem-solving skills.

Titaniam’s software engineers develop the next-generation technologies that protect big data. Our products need to handle information at a massive scale. We're looking for engineers who bring fresh ideas from all areas, including information retrieval, distributed computing as well as large-scale system design. As a software engineer, you will work on projects critical to the company needs with opportunities to switch projects as you and our fast-paced business grow and evolve. We need our engineers to be versatile, display leadership qualities and be enthusiastic to take on new problems across the full-stack as we continue to push technology forward.

• Work closely with software engineers, product managers, and sales teams to bring innovative solutions to market.
• Communicate and negotiate across teams to get buy-in and alignment towards a shared vision.
• Apply technical judgement and identify return-on-investment opportunities.
• Learn new technologies and apply them appropriately for bringing value to customers.

• Strong computer science fundamentals: data structures, algorithms, programming languages, distributed systems, and information retrieval.
• Experience in architecting and developing distributed systems design.
• Experience in technical leadership, leading project teams, and setting technical direction.
• Proven record of test driven development.
• Experience with Java, Spring Framework or similar technologies.

• Experience in driving technical projects and providing leadership in an innovative and fast-paced environment
• Experience in working with other engineering teams internally and externally, and across geographies.
• Experience building web applications for 5+ years.

Job Description: (Mandate Skills)

• Exceptional architecture and design skills using Object Oriented Programming concepts and Design patterns
• Strong problem solving and analytical skills
• Hands on Java Engineer, with experience building consumer facing or enterprise applications using Java stack
• Ability to manage small teams (2-4 members) using agile development process

Do You Know? (Skills good to have)

• Exposure to building service oriented distributed systems
• In building systems that process big data in a distributed environment, either in real time streaming or offline
• In messaging systems like Kafka, RabbitMQ, kinesis, etc.
• In real time computation tools like Storm / Spark or Hadoop based tools.
• In Data warehousing technologies like Redshift, BigQuery, etc.

• 3 years experience working on Python, Django and DRF (must have projects)
• Back-end Development, Third Party SDK Implementation, CI/CD
• Pipeline with AWS, Containerization of Server, Caching, Micro-service Implementation
• Architecture design of the web applications.
• Implementation of a robust set of services and APIs to power the web application.
• Building reusable code and libraries for future use.
• Optimization of the application for maximum speed and scalability.
• Writing reusable, testable, and efficient code.
• Design and implementation of low-latency, high-availability, and performant applications.
• Integration of user-facing elements developed by front-end developers with server-side logic.
• Implementation of security and data protection.
• Translation of UI/UX wireframes to visual elements

Good knowledge and experience of working with backend systems; 

designing server-side architecture, including production maintenance experience are must-haves.

At least 1-2 years of experience in any programming languages like Java, Ruby, PHP, Python and Node.js(Node.js preferred).

Understanding of micro-services oriented architecture.

Experience with Databases design (SQL, NoSQL) and analytics

Experience in driving and delivering complex features/software modules from technical design to launch.

Expertise with unit testing & Test Driven Development (TDD)