Senior Manager

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.

Appknox has helped secure mobile apps at Fortune 500 companies with major brands spread across regions like India, South-East Asia, Middle-East, US, and expanding rapidly. We have secured 300+ Enterprises globally.

We are a 60+ incredibly passionate team working to make an impact and helping some of the biggest companies globally. We work in a highly collaborative, very fast-paced work environment. If you have what it takes to be part of the team, we are excited and let’s speak further.

The Opportunity

Appknox AI is building next-generation AI-powered security analysis tools for mobile applications. We use multi-agent systems and large language models to automate complex security workflows that traditionally require manual expert analysis.

We're looking for an AI/ML Engineer who will focus on improving our AI system quality, optimizing prompts, and building evaluation frameworks. You'll work with our engineering team to make our AI systems more accurate, efficient, and reliable.

This is NOT a data scientist role. We need someone who builds production AI systems with LLMs and agent frameworks.

Key Focus:

Primary Focus: AI System Quality 

• Prompt Engineering: Design and optimize prompts for complex reasoning tasks
• Quality Improvement: Reduce false positives and improve accuracy of AI-generated outputs
• Evaluation Frameworks: Build systems to measure and monitor AI quality metrics
• Tool Development: Create utilities and tools that enhance AI capabilities

  Secondary Focus: Performance & Optimization 

• Cost Optimization: Implement strategies to reduce LLM API costs (caching, batching, model  selection)
•  Metrics & Monitoring: Track system performance, latency, accuracy, and cost
•  Research & Experimentation: Evaluate new models and approaches
•  Documentation: Create best practices and guidelines for the team

Experience

• 2–3 years of professional experience building AI-powered systems
• Previous hands-on work with agentic systems, autonomous workflows, or LLM-centric applications (not focused on model training)

Requirements:

• Design, build, and deploy autonomous AI agents using modern LLM frameworks
• Integrate agents with APIs, databases, and backend workflows
• Implement prompt strategies, tool/function calling, memory, and context management
• Strong understanding of vector databases and retrieval techniques (RAG use cases)
• Build production-ready systems with testing, monitoring, and scalable deployment practices
• Collaborate with cross-functional teams to ship reliable production features
• Strong Python and backend engineering skills
• Hands-on experience with agent frameworks such as LangChain, AutoGen, LlamaIndex
• Familiarity with observability and debugging tools (e.g., Arize, LangSmith, Langfuse dashboards)

Good to Have skill-set:

• Experience with multi-agent orchestration or planning frameworks
• Experience with online and offline evaluation of AI agents
• Exposure to cloud deployment and containerization (AWS/GCP/Azure, Docker)

 What We're NOT Looking For:

•   Only academic/tutorial LLM experience (we need production systems)
•   Pure ML research focus (we're not training foundation models)
•   Data analyst/BI background without engineering depth
•   No experience with LLM APIs or agent frameworks

  Our Tech Stack:

  AI/ML Infrastructure:

•   Agent Frameworks: LangChain, LangGraph
•   LLMs: Google Gemini (primary), with multi-model support
•   Observability: Langfuse, DeepEval
•   Vector Search: LanceDB, Tantivy
•   Embeddings: Hybrid approach (local + cloud APIs)

  Platform & Infrastructure:

•   Orchestration: Prefect 3.x, Docker, Kubernetes
•   Storage: S3-compatible object storage, PostgreSQL
•   Languages: Python 3.11+
•   Testing: pytest with parallel execution support

Work Expectations & Success Metrics:

Within 1 Month (Onboarding)

- Understand AI system architecture and workflows

- Review existing prompts and evaluation methods 

- Run analyses and identify improvement areas 

- Collaborate on initial optimizations

Within 3 Months (Initial Contributions)

- Own prompt engineering for specific components 

- Build evaluation datasets and quality metrics 

- Implement tools that extend AI capabilities 

- Contribute to performance optimization experiments

Within 6 Months (Independent Ownership)

- Lead quality metrics implementation and monitoring 

- Drive prompt optimization initiatives 

- Improve evaluation frameworks

- Research and prototype new capabilities

Within 1 Year (Expanded Scope)

- Mentor team members on best practices 

- Lead optimization projects (caching, batching, cost reduction)

- Influence architectural decisions 

- Build reusable libraries and internal frameworks

 Interview Process:

• Round 0 Interview - Profile Evaluation (15 min)
• Round 1 Interview - Take Home Assignment
• Round 2 Interview - Technical Deep-Dive (90 min)
• Round 3 Interview- Team Fit (45 min)
• Round 4 Interview- HR Round ( 30 min)

Why Join Appknox AI?

Impact & Growth

Work on cutting-edge AI agent systems that power real-world enterprise security. You’ll collaborate with experienced engineers across AI, security, and infrastructure while gaining deep expertise in LangGraph, agent systems, and prompt engineering. As we scale, you’ll have clear opportunities to grow into senior and staff-level roles.

Team & Culture

Join a small, focused product-engineering team that values code quality, collaboration, and knowledge sharing. We’re in a hybrid set-up - based out of Banaglore, flexible, and committed to a sustainable pace - no crunch, no chaos.

Technology

Built with a modern Python stack (3.11+, async, type hints, Pydantic) and the latest AI/ML tools including LangChain, LangGraph, DeepEval, and Langfuse. Ship production-grade features that make a real impact for customers.

Compensation & Benefits:

Competitive Package

We offer strong compensation designed to reward impact.

Flexibility & Lifestyle

Hybrid work setup and enjoy generous time off. You’ll get top-tier hardware and the tools you need to do your best work.

Learning & Development

Access a substantial learning budget, attend major AI/ML conferences, explore new approaches during dedicated research time, and share your knowledge with the team.

Health & Wellness

Comprehensive health coverage, fitness subscription, and family-friendly policies.

Early-Stage Advantages

Help shape the culture, influence product direction, and work directly with founders. Move fast, ship quickly, and see your impact immediately.

Job Opening: FreeSWITCH Developer

Location: Ecospace Business Park, Rajarhat, Newtown, Kolkata

Employment Type: Full-Time, Permanent

Shift: Day Shift

Experience: Minimum 4+ years in FreeSWITCH/VoIP Development

Responsibilities:

• Design, develop, deploy, troubleshoot, and maintain tools and services supporting our cloud telephony network.
• Customize FreeSWITCH for large-scale audio/video conferencing (1000–1500 concurrent calls).
• Expertise in SIP, RTP, RTCP, TURN, STUN, NAT, TLS.
• Hands-on experience with RTP Proxy and routed audio conferences.
• Understanding of SDP Protocol offer/answer mechanism.
• Work with load testing tools for FreeSWITCH audio conferences.
• Deploy and manage multiple FreeSWITCH instances using load balancers.
• Debug issues using packet captures (Wireshark/Ngrep).
• Collaborate with mobile/API teams for integration and support.
• Knowledge of codecs (PCMU, PCMA, G729, Opus) and open-source telephony technologies (FreeSWITCH, WebRTC).
• Familiarity with SIP servers (SER/OpenSER), proxy servers, SBC, SIPX is a plus.

Qualifications:

• Bachelor’s degree in Engineering (B.Tech/MCA).
• 4+ years of hands-on experience in FreeSWITCH development or related VoIP technologies.
• Strong knowledge of Linux environments and command-line tools.
• Basic to intermediate SQL knowledge.
• Proficiency in scripting (Bash, Python, Perl) for automation.
• Strong understanding of VoIP protocols (SIP, RTP), networking principles (TCP/IP, DNS, DHCP, routing protocols).
• Excellent troubleshooting skills with ability to resolve complex technical issues.
• Strong problem-solving, communication, and collaboration skills.

Industry Preference:

• Travel (Preferred)
• Any Industry (Required)

Position Overview:

We are seeking a skilled Software Developer with a focus on Front-End Development with Strong proficiency in HTML, JavaScript, CSS, Sass, Bootstrap and modern JavaScript frameworks including ReactJS and jQuery to join our team. The successful candidate will be responsible for writing clean, efficient, and maintainable code that enhances workflow organization and automates various internal processes within the organization. The role involves continuous improvement of our software solutions to save man-hours and ensure overall organizational efficiency. Key tasks include development, testing, debugging, troubleshooting, and maintenance of both new and existing programs.

Key responsibilities:

1)    Software Development: Write clean, efficient, and maintainable code/flows that automate internal processes and improve workflow efficiency.

2)    Testing and Maintenance: Perform testing, debugging, troubleshooting, and daily maintenance of created or integrated programs.

3)    UI/UX Development and Design: Design and develop intuitive and visually appealing user interfaces in the software.

4)    Web Services Integration: Integrate UI with web services to ensure seamless functionality.

5)    Adherence to Standards: Follow preferred development methodologies and adhere to organizational development standards.

6)    Collaboration: To work closely with other team members to ensure the successful implementation of projects. Maintain clear and concise documentation of code, APIs, and software components to aid in knowledge sharing and future development.

7)    Stay Current: Keep up to date with the latest developments in the Frond end development ecosystem and engage in best practices of software engineering.

Software Engineer – Tech Lead

- You are your own master.  We don't preach you, we just allow you to Innovate, Iterate, Learn and Adapt

- Work with one of India's leading fintech unicorn company

- ESOPs in the company

Requirements

• 6+ yrs of exposure in the art of writing code and solving problems on large scale.
• Should be language agnostic, with extensive and expert programming experience in any one programming language (strong OO skills preferred).
• Deep experience in at least one general programming language. Preferred (Java,Scala, C++)
• A solid foundation in computer science, with strong competencies in data structures,

algorithms, and software design.

• Worked end to end on 2-3 complex projects
• Worked in startup like environment with high levels of ownership and commitment
• Experience in building highly scalable business applications, which involve implementing

large complex business flows and dealing with huge amount of data.

• Extensive experience on working with distributed technologies like Kafka, MongoDb,

Redis/Aerospike, MySQL, AWS etc

• Experience with multi-threading and concurrency programming
• Ability to switch between the technologies and learn new skills on the go.

Roles and responsibilities

Drive discussions to create/improve the product, process and technology

• Build abstractions and contracts with separation of concerns for a larger scope
• Rapid prototyping
• Robust and scalable web-based applications
• Do high-level design with guidance; Functional modelling, break-down of a module
• Thinking platforms & reuse, the open-source contribution will be a plus
• Do incremental changes to architecture: impact analysis of the same
• Do performance tuning and improvements in large scale distributed systems
• Mentor young minds and foster team spirit

Responsibilities:

• Collaborate with cross-functional teams to define, design, and ship new features.
• Develop and maintain high-quality Android applications using Kotlin programming language.
• Design, build and maintain high-performance, reusable, and reliable code.
• Ensure the best possible performance, quality, and responsiveness of the application.
• Identify and correct bottlenecks and fix bugs.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Work with external data sources and APIs.
• Unit-test code for robustness, including edge cases, usability, and general reliability.

Requirements:

• Bachelor's degree in Computer Science, Software Engineering or related field.
• 2+ years of experience in Android development using Java and Kotlin.
• Strong knowledge of Android SDK, Android UI design principles, and Material Design.
• Experience with RESTful APIs, JSON, and XML.
• Familiarity with cloud message APIs and push notifications.
• Understanding of code versioning tools such as Git.
• Familiarity with continuous integration.
• Good understanding of object-oriented programming, software design patterns and algorithms.
• Strong analytical and problem-solving skills.
• Excellent written and verbal communication skills.
• Ability to work independently and as part of a team.

Tech Lead

 Key goals and responsibilities

· Building reusable components and front-end libraries for future use

· Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache

· Ensure best coding practices to build efficiencies and scalability of the tech stack; to be implemented by the team.

· Ensure defect-free software deployment and maintenance thereof.

· Focus on critical trouble shooting issues; be obstacle remover for the team.

· Create and maintain project documentation and tech specs.

· Review the code periodically from technical and security point of view with due recommendations.

· Track team on performance and task management to deliver to timelines and quality.

· Thorough understanding of React.js, Vue Js and its core principles

· Familiarity with modern front-end build pipelines and tools

· A knack of benchmarking and optimization

· Familiarity with code versioning tools such as Git, SVN, and Mercurial

· Good understanding of quality JavaScript code (Object oriented and commonly used design patterns )

· Capable of debugging complex issues in JavaScript

· Understanding of JS debug tools and chrome dev tools

Your key qualifications & competencies:

· Understanding of web markup, including HTML5 and CSS3

· Familiarity with RESTful APIs

· Knowledge of modern authorization mechanisms, such as JSON Web Token

· Experience with data structure libraries (e.g., Immutable.js)

· At least 5+ years of hands on coding experience

· Strong understanding of OOPS Concepts and data structure

· Have practical knowledge/experience in JAVA , Microservices , Springboot , hibernate and MySQL database

· Have prior experience in scrum and agile methodologies

· Should have 5+ years of experience in modern JavaScript frameworks such as React.js /Vue/AngularJS /Knockout

· Must have experience on AWS, or Google cloud. Must have knowledge of GIT.

· Should have sound understanding of http and REST. Be a proponent of strict code quality standards using JSLint etc.

· Should have atleast 3+ years of leading teams and proven record of adherence to ambitious deadlines.

· Should have strong understanding of object oriented and functional programming in JavaScript.

• Minimum 2 years of experience working as Software/Solution Architect
• In-depth knowledge of enterprise integration patterns
• Expertise to help developing advanced cloud-based solutions like AWS, Google or Microsoft. Ability
• to plan, design and scale AWS cloud based implementations using the best practises recommended
• by Amazon
• Experience in software development and coding in various platforms (like Java, Python, Node.js,
• Angular, Kotlin, React, Swift etc)
• Experience with relational and NoSQL databases
• Experience with enterprise service bus like Mule, Apache Camel is a plus
• Understanding of software quality assurance principles
• Outstanding communication and presentation abilities

• Leads development of solution architecture , preparation of technical plans, in liaison with business
• assurance and project staff
• Develop high-level product specifications with attention to system integration and feasibility
• Working proactively to maintain a stable, viable architecture and ensure consistency of design across
• projects within the programme
• Collaborate with other professionals to determine functional and non-functional requirements for
• new software or applications
• Ensures that technical strategies, policies, standards and practises are applied correctly working
• proactively to maintain
• Use tools and methodologies to create representations for functions and user interface of desired
• product
• Provides guidance on technical aspects of the solution development and integration
• Ensure software meets all requirements of quality, security, modifiability, extensibility etc.
• Ensures that appropriate tool and method are available, understood and employed in the
• architecture development

The ideal candidate will be responsible for developing and creating Deluge code, Functions, Workflows, etc. Mainly you'll be working on creating custom applications on Zoho Creator along with external tools integrations (within and outside Zoho Ecosystem).

Responsibility

• Implementation and customization of business applications on Zoho One including Creator, Forms, CRM, desk, BOOKS, Analytics, and others as needed.
• Deployment of new functionalities such as custom layouts, fields, calculated fields, and related fields.
• Design and build customer-facing CRM portals with reports and dashboards as needed.
• Data migration to and from different systems into Zoho Creator or other platforms.
• Creation of custom tools and scripts to automate various business processes.
• Create a roadmap for development and prepare iterations for approval and tracking.
• Own the entire development life cycle from concept to production as well as support
• Maintain proper code documentation and use best practices.
• Create faqs and How-to-videos before project handover.

Skills & Experience

• Basic understanding of programming. It means if you are given a code snippet you should know what will be the output. Basic understanding of PHP, Deluge, and Javascript.
• Great manipulating skill for strings, and arrays as most of the programs will be a string and array manipulation.
• Hands-on programming skills.
• Problem-solving skills as you are required to solve a real-world problem.
• Strong logical reasoning and Business understanding.