Backend Developer

About the Company

F22 Labs is a startup software studio based in Chennai. We power startups worldwide by building high-quality software products. From web apps to mobile platforms, we help entrepreneurs turn their ideas into beautifully crafted solutions. If you're passionate about software development and eager to build real products that solve real problems, you’ll fit right in.

Position Overview

We are seeking a talented and experienced Senior Node.js Developer to join our growing engineering team. In this role, you will be instrumental in designing, developing, and maintaining the backbone of our applications. You'll leverage your 3-5 years of expertise to build robust, scalable, and high-performance backend services and APIs. You will also play a key role in making architectural decisions, mentoring junior developers, and driving best practices within the team. If you're eager to tackle complex problems, contribute to innovative projects, and lead by example, this position is for you.

Key Responsibilities

● Design, develop, test, deploy, and maintain highly scalable and reliable backend services, APIs, and systems using Node.js (with frameworks like Express.js or NestJS) and TypeScript.

● Architect and implement robust solutions for complex business requirements, ensuring code quality, performance, and security.

● Collaborate closely with cross-functional teams including front-end developers, product managers, QA engineers, and designers to deliver high-quality products.

● Lead and participate in code reviews, providing constructive feedback to ensure adherence to coding standards and best practices.

● Design and manage database schemas (SQL and NoSQL, e.g., PostgreSQL, MongoDB, Redis) and optimize database queries for performance.

● Develop and maintain comprehensive unit, integration, and E2E tests to ensure software quality and reliability.

● Work with containerization technologies like Docker and orchestration tools like Kubernetes for deploying and managing applications.

● Implement and maintain CI/CD pipelines for automated building, testing, and deployment of applications.

● Mentor and guide junior developers, fostering a culture of learning and continuous improvement.

● Troubleshoot, debug, and upgrade existing software, identifying and resolving performance bottlenecks.

● Stay up-to-date with emerging technologies, industry trends, and best practices in Node.js development and backend architecture.

● Contribute to architectural discussions and decisions, helping to shape the future of our backend systems.

Qualifications and Requirements

● 3-5 years of professional experience in backend development with a strong focus on Node.js.

● Expert proficiency in TypeScript.

● Proven experience with Node.js frameworks such as Express.js or NestJS (highly preferred).

● Strong understanding of asynchronous programming, event-driven architecture, and design patterns.

● Solid experience in designing, building, and consuming RESTful APIs; experience with GraphQL is a plus.

● Proficiency with both SQL (e.g., PostgreSQL, MySQL) and NoSQL (e.g., MongoDB, Redis) database technologies, including data modeling and query optimization.

● Hands-on experience with containerization technologies (Docker) and a good understanding of container orchestration (Kubernetes).

● Experience with CI/CD tools and practices (e.g., Jenkins, GitLab CI, GitHub Actions).

● Experience deploying and managing applications on cloud platforms (AWS, Azure, or GCP), including familiarity with relevant services (e.g., EC2, S3, Lambda, RDS).

● Strong problem-solving, analytical, and critical thinking skills.

● Excellent communication and collaboration skills, with the ability to work effectively in a team environment.

● Proven ability to mentor junior team members.

● Familiarity with Git and collaborative development workflows.

Good to have:

● Experience with testing frameworks (e.g., Jest, Mocha, Chai) and a commitment to writing well-tested code.

● Experience with microservices architecture and distributed systems.

● Experience with serverless architecture (e.g., AWS Lambda, Azure Functions).

● Knowledge of message queue systems (e.g., Kafka, RabbitMQ, AWS SQS).

● Familiarity with Infrastructure as Code (IaC) tools like Terraform or CloudFormation.

● Understanding of front-end technologies (e.g., React, Angular, Vue.js) to facilitate better collaboration.

● Experience with performance monitoring and optimization tools.

● Active contributions to open-source projects or a strong portfolio of personal projects.

Why Join Us (Perks & Benefits)

● Flexible work timings.

● Fast-paced, hands-on learning environment.

● Fun, collaborative, and supportive team culture.

● Real-world impact from day one.

If you're looking to supercharge your development skills and work on meaningful software in a startup that values learning and creativity, we’d love to hear from you. Apply today! 

Sr. Backend Engineer - (Django & Python)

Must have Crypto/Blockchain Experience.

CoinCROWD is an innovative Fintech company. We offer a crypto platform for seamless payments, Crypto Vouchers, crypto trading, portfolio management, real time market data, breaking news and powerful analytics.

Website: https://coincrowd.com/

Domain : Finance, Blockchain, Crypto

Role : Permanent full time Employment

Job Location : Work from Home / Remote

Job Responsibilities:

• Understand project requirements, writing bug free clean code and ensure that the solution works per the agreed architecture, SLAs, KPIs and business model
•  Integrate backend with third party APIs
• 100% Hands on role
•  Make design decisions that contribute to maintainable systems
• Adapt to rapidly evolving requirements and changing priorities and drive the team accordingly Responsible to drive and support e-commerce project activities and ensure marketplace implementation, deepen customer engagement, satisfaction, and user engagement
• Reverse engineer for debugging errors in code and ensuring quality control in the process.
• Continually drive products towards a meaningful balance between user needs, business objectives and technical feasibility
• Documentation and reference preparation for users by writing operating instructions including changes and revisions.

Qualifications:

• Bachelor or Master Degree in Computer Science, Software Engineering from a reputed University
• 5+ years of experience with at-least 2-3 years working in the Finance domain is Plus.
• Django , Django Rest Framework, Python 3, Mysql, Elasticsearch, websockets, javascript, JIRA, Gitlab, Rest API, GCP or AWS
• Finance, Social Analytical, debugging, and troubleshooting skill with proven experience troubleshooting and fixing production bugs
• Experience in writing unit testing and test case automation.
• Ability to operate in an Agile environment with a start-up mentality and unstructured environment, Energy, drive and passion to work, and operate in a digital world.
• Excellent communication skills and ability to work with remote teams

What We Offer:

In recognition of your valuable contributions, you will receive an equity-based compensation package. Join our dynamic and innovative team in the rapidly evolving fintech industry and play a key role in shaping the future of Coincrowd's success.

We are looking for a Senior Software Developer to produce and implement functional software solutions. You will work with upper management to define software requirements and take the lead on operational and technical projects.

In this role, you should be able to work independently with little supervision. You should have excellent organization and problem-solving skills. If you also have hands-on experience in software development and agile methodologies, we’d like to meet you.

Your goal will be to develop high-quality software that is aligned with user needs and business goals.

• Develop high-quality software design and architecture
• Identify, prioritize and execute tasks in the software development life cycle
• Develop tools and applications by producing clean, efficient code
• Automate tasks through appropriate tools and scripting
• Review and debug code
• Perform validation and verification testing
• Collaborate with internal teams and vendors to fix and improve products
• Document development phases and monitor systems
• Ensure software is up-to-date with the latest technologies.

• Proven experience as a Senior Software Engineer
• Extensive experience in software development, scripting and project management
• Knowledge of selected programming languages (e.g. Django, Python, C++) and the elastic search.
• Analytical mind with problem-solving aptitude
• Ability to work independently
• Excellent organizational and https://resources.workable.com/leadership-interview-questions" target="_blank">leadership skills
• BSc/BA in Computer Science or a related degree

The Sr. Analytics Engineer would provide technical expertise in needs identification, data modeling, data movement, and transformation mapping (source to target), automation and testing strategies, translating business needs into technical solutions with adherence to established data guidelines and approaches from a business unit or project perspective.

Understands and leverages best-fit technologies (e.g., traditional star schema structures, cloud, Hadoop, NoSQL, etc.) and approaches to address business and environmental challenges.

Provides data understanding and coordinates data-related activities with other data management groups such as master data management, data governance, and metadata management.

Actively participates with other consultants in problem-solving and approach development.

Responsibilities :

Provide a consultative approach with business users, asking questions to understand the business need and deriving the data flow, conceptual, logical, and physical data models based on those needs.

Perform data analysis to validate data models and to confirm the ability to meet business needs.

Assist with and support setting the data architecture direction, ensuring data architecture deliverables are developed, ensuring compliance to standards and guidelines, implementing the data architecture, and supporting technical developers at a project or business unit level.

Coordinate and consult with the Data Architect, project manager, client business staff, client technical staff and project developers in data architecture best practices and anything else that is data related at the project or business unit levels.

Work closely with Business Analysts and Solution Architects to design the data model satisfying the business needs and adhering to Enterprise Architecture.

Coordinate with Data Architects, Program Managers and participate in recurring meetings.

Help and mentor team members to understand the data model and subject areas.

Ensure that the team adheres to best practices and guidelines.

Requirements :

- Strong working knowledge of at least 3 years of Spark, Java/Scala/Pyspark, Kafka, Git, Unix / Linux, and ETL pipeline designing.

- Experience with Spark optimization/tuning/resource allocations

- Excellent understanding of IN memory distributed computing frameworks like Spark and its parameter tuning, writing optimized workflow sequences.

- Experience of relational databases (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., Redshift, Bigquery, Cassandra, etc).

- Familiarity with Docker, Kubernetes, Azure Data Lake/Blob storage, AWS S3, Google Cloud storage, etc.

- Have a deep understanding of the various stacks and components of the Big Data ecosystem.

- Hands-on experience with Python is a huge plus

Backend Web Developer

 Our client operates from 18 cities across 13 countries. Our investment personnel manage US $247 billion across a wide range of global, regional and country-specific strategies - both traditional and alternative - in listed equity and fixed income. At Lazard Asset Management, we pride ourselves in balancing the feel of a small firm with the scale of a large global organization. Our entrepreneurial culture and flat management structure foster an environment in which good ideas can take flight, no matter where they come from.

Our client is looking for an innovative software engineer to join our IT department.  This individual will be working on the systems that support the global sales and marketing organization.  This role will be responsible for building and supporting the backend services and API’s used in all of the applications. This role requires a highly motivated, organized and experienced developer with pride of ownership reflected through clean design, code quality and a disciplined software development approach.

Key Responsibilities

• Design and implement middle-tier web applications, and RESTful services.
• Collaborate with front-end developers to integrate user-facing elements with server side logic.
• Support existing software with quick troubleshooting and issue resolution.
• Be part of an empowered team following agile methodologies.

Desired Candidate Profile:

• 5+ year’s applications development experience with full-stack development and agile frameworks.
• Strong understanding of object-oriented programming and service-oriented design.
• Work effectively both as a contributing team member and independently.
• Strong verbal and written communication skills.
• Creative problem solving with the ability to present multiple solutions and potential side effects.
• Fast paced programming mentality with quick turnaround.

Required Skills:

• Expertise with API creation and RESTful services.
• Expertise developing backend server components using Python, NodeJS, C#
• Expertise building micro service architecture.
• Experiencebuilding and supporting websites using CMS systems (Tridion, Drupal, AEM)
• Experience and proficiency with relational databases (SQL Server, Oracle, Sybase).
• Experience and proficiency with NoSQL databases (MongoDB, Cassandra).

Desired Skills:

• Experience running services on container technologies like Kubernetes and Docker.
• Amazon AWS or equivalent cloud architecture experience with a major cloud provider.
• Experience with Jira.
• Experience building CI/CD pipelines using Jenkins or TeamCity.
• Experience with CRM systems especially Salesforce is a plus.

At nFerence Labs, the "Google of Biomedicine", we are building the world's first massive-scale platform for pharmaco-biomedical computing. Our platform is premised on using AI/Deep Learning (on clinical text, medical images, and other signals) and massive high-performance computing to help pharma companies perform faster and more efficient drug discovery, and also help early diagnosis of several key diseases.

We collaborate heavily with premier medical institutions such as the Mayo Clinic and build systems to get deep medical insights from patient information including patient notes and lab information, medical images, ECGs, etc. We are a well-funded company and are looking to grow on all fronts.

We are hiring an experienced backend staff engineer for our Pramana team. Our Digital Pathology-as-a-service venture, Pramana is an in-line quality assurance software suite which for the first time in the industry, provides confidence to the labs for the accuracy and applicability of their digital assets while supporting industry-standard image formats.

Pramana’s whole slide imaging system is built upon the strong hardware expertise of former Spectral Insights (that nference acquired in 2020) and the strong software expertise of nference. Modular systems with Robotic automation have allowed Pramana to reduce the reliance on several technical staff. This will significantly reduce the total costs of ownership and is a more transparent model for Pramana’s clients.

Must have

• 5+ years experience with solid backend/engineering experience in C++/ Python
• Knowledge of data structures and an eye for architecture.
• Solid CS fundamentals, fluent in multi-threaded and asynchronous programming, and a strong inclination for architecting at scale.
• Excellent technical design, problem-solving, debugging, and communication skills.
• Rapid prototyping worked on distributed systems at scale.
• Basic knowledge of SQL as well as NoSQL databases.
• Proficient in Golang/ Python, design, and concurrency patterns.

Good to have

• Proficient in writing unit tests and profiling and benchmarking golang applications
• Experience in maintaining protobuf contract
• Experience in working with GRPC and grace

Benefits:

• Be a part of the “Google of biomedicine” as recognized by the Washington Post
• Work with some of the brilliant minds of the world solving exciting real-world problems through Artificial Intelligence, Machine Learning, analytics and insights through triangulating unstructured and structured information from the biomedical literature as well as from large-scale molecular and real-world datasets.
• Our benefits package includes the best of what leading organizations provide, such as stock options, paid time off, healthcare insurance, gym/broadband reimbursement.

The primary responsibilities include:

• Responsible for the overall software development lifecycle.
• Management and execution against project plans and delivery commitments
• Drive effective, mature Agile practices and continuous execution improvements within your teams.
• Manage stakeholder planning and communications ensuring key outcomes
• Recruit, coach, and mentor the best engineering and management talent
• Build, coach, and manage a strong team of engineers that set the standard and can up-level the overall talent of the extended organization.
• Provide a strong understanding of native mobile developer platforms and bring broad thought leadership to the next generation mobile developer experience.
• Anticipate and aggressively remove obstacles that slow down or prevent products and programs from delivering on product and program objectives.
• Balance urgent and effective action, commitment to excellence, and taking the initiative to resolve problems; holds internal stakeholders accountable where appropriate.

REQUIRED

• 8+ years of industry experience with 2+ years of senior leadership experience.
• Solid track record of over-achieving engineering and platform delivery and scaling targets in high volume, innovative and fast-paced high-pressure environment; proven results in delivery on platform product.
• Deep understanding of one or more of Java/Python/Scala. Ability to understand and critique the core library/language constructs with skilled knowledge on UI technologies like Angular 2+, React, D3.JS
• Working experience with Agile methodologies and durable team concepts.
• Knowledge in DevOps practices and tools.
• Knowledge in Cloud Technologies, CI/CD, Jenkins, Testing methodologies is preferred.
• Experience in server-side services using ElasticSearch, Kafka
• A strong track record of project delivery for large, cross-functional, projects and bringing in and growing engineering talent
• Excellent written and verbal communication skills with the ability to present complex technical information clearly and concisely to a variety of audiences.

We are looking for a Python Web Developer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your co-workers into the application; therefore, a basic understanding of front-end technologies is necessary as well.

• 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.
• Integration of data storage solutions (may include databases, key-value stores, blob stores, etc.)

Skills And Qualifications:

• Expert in Python, with knowledge of at least one Python web framework (such as Django, Flask, etc depending on your technology stack).
• Familiarity with some ORM (Object Relational Mapper) libraries.
• Able to integrate multiple data sources and databases into one system.
• Understanding of the threading limitations of Python, and multi-process architecture.
• Good understanding of server-side templating languages.
• Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3.
• Understanding of accessibility and security compliance (depending on the specific project).
• Knowledge of user authentication and authorization between multiple systems, servers and environments.
• Understanding of fundamental design principles behind a scalable application.
• Familiarity with event-driven programming in Python.
• Understanding of the differences between multiple delivery platforms, such as mobile vs desktop, and optimizing output to match the specific platform.
• Able to create database schemas that represent and support business processes.
• Strong unit test and debugging skills.

• Expert in Python. Comfortable with Web frameworks, such as Flask or Django
• Familiarity with Object Relational Mapping Libraries and ability to Integrate with Multiple Data Sources into One System
• Understanding of Limitations of Python and Multi Process Architecture. Understanding of Design Principles of Scalable Application
• Has familiarity with data frameworks in Python - Pandas or
• Good object-oriented design skills and knowledge of design
• Knowledge of key-value stores, caching, search, messaging queues
• Minimum 5 years of experience in the above