AI + VoIP Software Engineer

Job Description :

Responsibilities :

- Design and develop Python-based microservices

- Build and operate gRPC / Protobuf-based APIs

- Implement asynchronous processing, concurrency, and job orchestration

- Design systems with retries, idempotency, and fault tolerance

- Work with and integrate native C/C++ components with Python services

- Design and optimise PostgreSQL schemas and queries

- Contribute to React-based frontend applications (TypeScript/JavaScript)

- Own features end-to-end : design, development, deployment, and monitoring

- Debug issues across application, system, and performance layers

- Build and maintain CI/CD pipelines and automated tests

Requirements :

- Strong experience in Python backend development (sync + async)

- Hands-on experience with gRPC / Protobuf-based APIs

- Experience with FastAPI / Flask / Django

- Strong understanding of microservices and distributed systems

- Experience with PostgreSQL and data modeling

- Exposure to React / JavaScript / TypeScript

- Knowledge of concurrency, multi-threading, and system design

- Strong understanding of Linux systems and debugging

- Experience in production environments (performance tuning, issue resolution)

- Exposure to C/C++ or Python-native integrations (preferred)

Qualification :

- Engineering Graduates from Tier 1 & Tier 2 Colleges/Deemed Universities only

- Open for candidates from outstation.

- Experience range : 12 - 15 years (but not more than 15 years of experience)

- Strictly Individual contributors, Handson coding. 80% Individual Contributor & 20% Architecture, Design, Systems

About Us

Wednesday is a technology consulting and engineering firm based in Pune. We specialise in helping digital-first businesses solve complex engineering problems. Our expertise lies in data engineering, applied AI, and app development. We offer our expertise through our services: Launch, Catalyse, Amplify, and Control.

We're a passionate bunch of people who take their work seriously. We deeply care about each other and are united by the cause of building teams that delivery great digital products & experiences.

Job Description

Wednesday is a technology consulting and engineering firm based in Pune. We specialise in helping digital-first businesses solve complex engineering problems. Our expertise lies in data engineering, applied AI, and app development. We offer our expertise through our services: Launch, Catalyse, Amplify, and Control.

We're a passionate bunch of people who take their work seriously. We deeply care about each other and are united by the cause of building teams that delivery great digital products & experiences

Wednesday works with customers with a high amount of autonomy. We own problem statements and work with them to provide simple solutions to complex and challenging problems. You will be responsible for front-end architecture, delivery and innovation across all pods at Wednesday.

Key Responsibilities:

• Collaborate with UI/UX designers to develop responsive web applications.
• Build, test, and deploy frontend interfaces using React.js.
• Work on fullstack development, integrating frontend with backend (Node.js).
• Optimize applications for performance and scalability.
• Troubleshoot and resolve issues in both frontend and backend.

Skills Required:

• Proficiency in React.js, HTML, CSS, JavaScript.
• Basic knowledge of backend technologies (Node.js, Express.js).
• Familiarity with RESTful APIs and databases (MongoDB or MySQL).
• Version control (Git/GitHub).
• Strong problem-solving skills and teamwork.

Nice to Have:

• Familiarity with cloud services (AWS, Azure).
• Building developer libraries and SDKs.

Benefits

• Mentorship: Work next to some of the best engineers and designers.
• Freedom: An environment where you get to practice your craft. No micromanagement.
• Comprehensive healthcare: Healthcare for you and your family.
• Growth: A tailor-made program to help you achieve your career goals. Click here to read more about our career ladder.
• A voice that is heard: We don't claim to know the best way of doing things. We like to listen to ideas from our team.

Job Description: Principal Engineer (Full Stack Architect)

Job Title: Full Stack Architect

Location: Hyderabad, India

Experience: 15Years to 20 years (4+ years in Enterprise Architecture)

Technology Stack: MERN (MongoDB, Express, React, Node.js), Distributed Systems, Cloud (GCP/Azure), Neo4j, Vector Databases, SQL and NoSQL Databases, Knowledge Graphs.

Industry: Enterprise Software, Large-Scale Distributed Systems, Machine Learning

Job Summary

As a Full Stack Architect, you will play a pivotal role in designing and architecting large-scale distributed systems with a strong focus on the MERN stack (MongoDB, Express.js, React, Node.js). You will lead the design and implementation of enterprise-grade software solutions that leverage cloud infrastructure (GCP/Azure), knowledge graphs (Neo4j), vector databases, and machine learning at scale. In this role, you will work closely with cross-functional teams including data scientists, cloud engineers, and front-end developers to deliver high-performance, secure, and scalable applications.

This role requires a deep understanding of distributed systems architecture, graph databases, machine learning systems, and cloud computing, with a strong focus on building solutions that meet business and technical needs. The ideal candidate will have 12+ years of experience with a proven track record of architecting full-stack systems and leading engineering teams in a fast-paced, innovative environment.

Roles and Responsibilities

Full Stack Architecture: Design, develop, and maintain highly scalable, distributed, and fault-tolerant enterprise applications using the MERN stack (MongoDB, Express.js,

React, Node.js).

Distributed Systems: Architect and design large-scale distributed systems that handle high- volume, low-latency data processing.

Cloud Engineering: Implement and maintain cloud infrastructure solutions on GCP or AWS,ensuring high availability, scalability, and performance.

Knowledge Graphs and Databases: Design and optimize complex data models using Neo4j, vector databases, and other NoSQL solutions to manage interconnected data efficiently.

Enterprise Solutions: Architect and deliver cloud-native enterprise software solutions that meet enterprise-grade security, compliance, and performance requirements.

Data Structure & Algorithms (DSA): Lead by example in writing efficient, high-performance code and optimize software with a strong focus on algorithms, data structures, and system design principles.

Collaboration: Work with engineering, data science, and product teams to translate business requirements into scalable technical solutions.

Mentorship: Mentor junior engineers and foster a collaborative team environment.

Performance Optimization: Ensure system performance, scalability, and reliability throughcode reviews, optimizations, and best engineering practices.

Documentation & Best Practices: Maintain comprehensive architecture documentation and promote engineering best practices across teams.

Mandatory Requirements

Experience: 12+ years of full-stack development experience, with significant expertise

in building and architecting applications using the MERN stack (MongoDB, Express.js,

React, Node.js).

 Distributed Systems: Proven track record of architecting and implementing large-scale

distributed systems with a focus on reliability, scalability, and performance.

 Cloud Expertise: Extensive hands-on experience with cloud infrastructure (GCP or AWS),

with a deep understanding of cloud services such as compute, storage, networking, and

security.

 Database Systems: Expertise in NoSQL databases like MongoDB and graph databases like

Neo4j. Experience with vector databases for high-dimensional data processing.

 Knowledge Graphs: Hands-on experience in designing and working with knowledge graphs

for solving complex data relationships.

 Data Structures & Algorithms: Strong knowledge of DSA with practical experience in

solving complex technical challenges.

 Microservices Architecture: Experience in designing and developing microservices-based

architectures and ensuring high availability.

 DevOps ; Automation: Knowledge of DevOps practices (CI/CD), containerization (Docker), and orchestration (Kubernetes).

 Agile Methodologies: Experience with Agile development methodologies, including SCRUM, TDD, and iterative development.

Nice-to-Have Requirements

 Front-End Expertise: Advanced experience with React.js, with knowledge of modern front- end technologies (Next.js, Redux, TypeScript).

 Cloud Certifications: Google Cloud Professional Architect or Azure Certified Solutions Architect certifications.

 Data Engineering: Hands-on experience with data pipelines, ETL processes, and big data technologies (e.g., Apache Spark, Kafka).

 AI/ML Ops: Experience in deploying machine learning models using MLOps frameworks and automating ML pipelines.

 Graph Analytics: Experience in graph algorithms and analytics, with the ability to model and query complex relationships in a graph database.

 System Design: Experience in conducting system design reviews, providing insights into performance bottlenecks, scalability, and trade-offs.

 Security & Compliance: Knowledge of enterprise-level security protocols and data privacy compliance frameworks (e.g., SOC2, GDPR).

Leadership: Proven experience in leading cross-functional teams, setting technical roadmaps, and ensuring alignment between business and technical goals.

Essential Job Functions:

1. Implement application components and systems according to department standards and guidelines.
2. Work with product and designers to translate requirements into accurate representations for the web.
3. Analyze, design, code, debug, and test business applications.
4. Code reviews in accordance with team processes/standards.
5. Understand and work with data in varying degrees of complexity and scale.
6. Responsible for planning, processing and performing all jobs in an efficient manner.
7. Provide assistance to testers and support personnel as needed to determine system problems.
8. Resolve problems involved with integrating new technologies with systems.

* Essential functions are the basic job duties that an employee must be able to perform, with or without reasonable accommodation.  The function is considered essential if the reason the position exists is to perform that function.

Supportive Job Functions:

1. Remain knowledgeable of new emerging technologies and their impact on internal systems.
2. Available to work on call when needed.
3. Perform other miscellaneous duties as assigned by management.

*These tasks do not meet the Americans with Disabilities Act definition of essential job functions and usually equal 5% or less of time spent.  However, these tasks still constitute important performance aspects of the job.

Knowledge, Skill, and Abilities:

1. Experience using Python, JavaScript, and React.
2. Experience with web services and RESTful APIs.
3. Experience in cloud infrastructure
4. Experience with Sql and NoSql databases
5. Familiarity with modern CI/CD methods
6. Ability to organize, prioritize, and handle multiple assignments on a daily basis.
7. Strong and effective inter-personal and communication skills
8. Ability to interact professionally with a diverse group of clients and staff.
9. Must be able to work flexible hours on-site and remote.
10. Must be able to coordinate with other staff and provide technological leadership.
11. Ability to work in a complex, dynamic team environment with minimal supervision.
12. Must possess good organizational skills.

Education, Experience, and Certification:

1. Associate’s or bachelor’s degree preferred (Computer Science, Engineer, etc.), but equivalent work experience in a technology related area may substitute.
2. 5+ years relevant experience, required. *
3. Experience using version control daily in a developer environment.
4. Experience with Python, JavaScript, and React is required.
5. Experience using rapid development frameworks like Django or Flask.
6. Experience using front end build tools.