Staff Engineer

Job Title : Backend Engineer (AI-First | FinTech/Crypto)

Experience : 3 to 6 Years

Location : Gurugram (Sector 49)

Working Hours : 10:00 AM – 6:00 PM

Work Mode : On-site | 6 Days Working

Employment Type : Full-time

Role Overview :

This is not a typical ticket-based engineering role. You will take end-to-end ownership of systems—designing architecture, building scalable solutions, and solving real-world performance challenges.

We operate in an AI-first engineering environment, leveraging advanced tools and automation workflows to build high-performance distributed systems.

Mandatory Skills :

Java/Spring Boot or Node.js, System Design (HLD/LLD), Distributed Systems, Event-Driven Architecture (Kafka/RabbitMQ), Low-Latency APIs, PostgreSQL/MongoDB, CI/CD, Docker/Kubernetes, AI-assisted development (Copilot/Cursor/Claude)

Key Responsibilities :

• Design and build scalable backend systems (Java/Spring Boot, Node.js, or similar).
• Architect and implement event-driven systems (Kafka, RabbitMQ, pub/sub).
• Develop secure and reliable financial systems with strong data integrity.
• Solve scalability and performance challenges in fintech/crypto environments.
• Own features end-to-end: design → development → deployment → monitoring.
• Work with real-time data pipelines (WebSockets, streaming, event sourcing).
• Define service contracts and optimize system architecture.

AI-First Engineering (Must-Have Mindset) :

You will :

• Use tools like GitHub Copilot, Cursor, and Claude in daily development
• Follow spec-driven development using structured instructions
• Review, validate, and ship AI-generated code with strong engineering judgment

Core Requirements :

• 3+ years of backend development experience.
• Strong expertise in Java (Spring Boot) or Node.js.
• Solid understanding of System Design (HLD/LLD, Distributed Systems).
• Experience with event-driven architectures (Kafka, RabbitMQ, async pipelines).
• Hands-on experience building low-latency, high-throughput systems.
• Strong database knowledge (PostgreSQL, MongoDB, etc.).
• Understanding of security, performance optimization, and reliability.
• Experience with CI/CD, Git, Docker, Kubernetes.
• Exposure to React / React Native is a plus.

Good to Have (Differentiators) :

• Experience in FinTech / Crypto / Web3 / Blockchain.
• Built systems for trading, payments, or real-time financial data.
• Experience with AI agents, automation pipelines, or agent-based systems.
• Exposure to parallel AI workflows (coding / testing / refactoring).
• Contributions to open source or technical blogs.
• Experience handling production-scale systems.

Key Responsibilities

• Lead software development teams across all phases of the SDLC
• Provide technical leadership in coding, debugging, and system integration
• Define system scope, objectives, and technical solutions
• Act as primary technical point of contact for stakeholders
• Develop technical specifications, code, and testing strategies
• Manage change control, issue resolution, and release activities
• Ensure adherence to coding standards and security practices
• Design and implement REST API-based integration solutions
• Conduct code reviews and quality assurance checks
• Identify and mitigate technical risks
• Mentor developers and provide technical guidance
• Maintain documentation for development and testing
• Collaborate across teams to improve processes
• Stay updated with emerging technologies and industry trends

Knowledge / Skills

• Strong programming skills in JavaScript, Java, and Node.js
• Experience with Auth0 (Rules, Actions, MFA, Management API)
• Experience with AWS (Lambda, API Gateway, IAM, CloudFormation)
• Knowledge of Infrastructure as Code (CloudFormation/Terraform)
• Strong REST API design and integration expertise
• Understanding of IAM protocols (OAuth2, OIDC, SAML, JWT, PKCE)
• Experience with CI/CD pipelines using Git
• Strong analytical and problem-solving skills
• Excellent communication and leadership abilities

Education and Experience

• Bachelor’s degree in Computer Science or a related field
• 8–10 years of software development experience
• Experience leading development teams
• Experience in Agile/Scrum environments

Strong Senior Backend Engineer profiles

Mandatory (Experience 1) – Must have 5+ years of hands-on Backend Engineering experience building scalable, production-grade systems

Mandatory (Experience 2) – Must have strong backend development experience using one or more frameworks (FastAPI / Django (Python), Spring (Java), Express (Node.js).

Mandatory (Experience 3) – Must have deep understanding of relevant libraries, tools, and best practices within the chosen backend framework

Mandatory (Experience 4) – Must have strong experience with databases, including SQL and NoSQL, along with efficient data modeling and performance optimization

Mandatory (Experience 5) – Must have experience designing, building, and maintaining APIs, services, and backend systems, including system design and clean code practices

Mandatory (Domain) – Experience with financial systems, billing platforms, or fintech applications is highly preferred (fintech background is a strong plus)

Mandatory (Company) – Must have worked in product companies / startups, preferably Series A to Series D

Mandatory (Education) – Candidates from top engineering institutes (IITs, BITS, or equivalent Tier-1 colleges) are preferred

Job Location

Bengaluru, India

Job Type

Contractual Position with Potential for Full-Time Employment Based on Performance Review

Experience Required

4 years of experience in Java & Technologies

Company Description

Welcome to Unitalks Technologies! We are a managed services provider that helps our clients hire top-quality talent. We are hiring for one of our clients in Bengaluru, more details will be provided about the company and culture later in the process.

Role Description

This is a contract role for a Senior Java Software Engineer. As a Senior Java Software Engineer, you will be responsible for designing and developing software solutions, building and maintaining Microservices architectures, and programming using Spring Boot. This role is based in Bengaluru and is an on-site position.

Qualifications

• Software Development and Programming skills
• Experience with Microservices and the Spring Boot
• Proficiency in Java, SQL and UNIX
• Good in deployment on different platforms like AWS, Azure, etc.
• Strong problem-solving and analytical skills
• Excellent communication and teamwork abilities
• Bachelor's or Master's degree in Computer Science or a related field
• Experience with Agile methodologies and CI/CD pipelines
• Knowledge of cloud platforms and containerization technologies is a plus

3+ yrs of exp develp'g in PHP and open source language, knowledge in MySQL, JQuery, Javascript, and other popular& widely used server technologies like Drupal, WordPress, Joomla used to implement php web applications. Knowledge of UNIX & Web Hosting.

Role IT Project Lead

Industry Type IT Services & Consulting

Functional Area Project & Program Management

Role Category Technology / IT
Location:Hyderabad

ROLES AND RESPONSIBILITIES 

• Proven working experience in backend app development and experience with Node JS.  
• Build advanced ecommerce backend applications for the multiple client platforms (both React and Android).  
• Understanding of design principles and good architecture patterns.  
• Proper Data Structures and Algorithm knowledge is a must.  

• Graph QL and Apollo Server knowledge.  
• Collaborate with cross-functional teams to define, design, and ship new features. Work with outside data sources and APIs like the one of Unicommerce.  
• Create Unit-test code for robustness, including edge cases, usability, and general reliability.  
• Work on bug fixing and improving application performance.  
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.  

• Translate designs and wireframes into high quality code.  
• Have a good understanding of CI/CD tools (any).  
• Robust knowledge of popular databases like MongoDB, Elastic Search, DynamoDB, Redis etc;  
• Knowledge about AWS Services like EC2, Lambda, Kinesis, Redshift, S3 is super plus. 
•  

CANDIDATES MUST HAVE  

• Node JS. 
• Data Structures and Algorithm  
• HTML5 and CSS3 
• Graph QL and Apollo Server  
• MongoDB, Elastic Search, DynamoDB, Redis 

• AWS Services like EC2, Lambda, Kinesis, Redshift, S3  

REQUIREMENTS  

• Bachelor's degree in computer science, information science, or similar.  
• Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.  
• Knowledge of front-end technologies such as HTML5 and CSS3.  

• Superb interpersonal, communication, and collaboration skills.  
• Exceptional analytical and problem-solving aptitude.  
• Great organisational and time management skills.  
• Availability to resolve urgent web application issues outside of business hours 

Your Qualifications:

 7 to 12 years of experience with majority as Java engineer

 Strong hands on experience on building application using technologies Java, Spring, Hibernate, Maven/Gradle.

 Experience in building Micro Services using Spring Boot / Go.

 Strong knowledge and experience with SQL queries and databases like Postgre SQL/Oracle.

 Strong knowledge and experience on Platform components such as Docker, Kubernetes and Service Mesh (Istio).

 Good knowledge of scripting languages (preferably Python and Bash)

 Familiarity with CI/CD environment (Jenkins).

 Experience on Observability stack such as ELK Stack, Prometheus & Grafana would be added advantage.

 Should have experience on Active MQ based async queuing system design and deployment.

 Strong experience of system design and implementation of end-to-end integrated systems.

 Familiarity with Hazelcast and Zk Solution would be a plus.

 Strong skills to write technical design documentation.

 Experience of leading a team as tech lead.

 Ability to work effectively in a team environment as well as independently.

 Good communication skills with tech/non-tech people.

What You'll Do:

 Assigned to software development projects and/or system enhancements as tech lead.

 Be engaged in a whole process of development project (requirements analysis, design, implementation, testing/verification, deployment, operation/maintenance).

 Work closely with project manager and other engineers. Some of them are in different locations such as Japan and Singapore.

 Always improve the design quality, code quality, testing quality and system quality spontaneously. In addition, create such a culture in our team.

 Understand business needs and user behavior and develop solutions to those needs.

 Develop and maintain a deep understanding of our systems and propose system improvements.

 Guide and support less-experienced members as mentor and role model to improve the team productivity and achieve team’s goals together.

Better to Have:

 Familiarity with Telecom Service Provider’s Billing Ecosystem/BSS Systems.

 Familiarity with and experience on Cloud Native Technologies.

 Familiarity with Agile Software development process.

 Familiarity with and experience on Linux/Unix environment

 Work experience with a remote team

 Familiarity with Atlassian tools (JIRA, Confluence, HipChat)

 Familiarity with source control system (Gitlab, SVN, etc.)

OUR COMMITMENT TO YOU:

You'll benefit from our network of global communities and collaborative culture that will help you build technical and functional skills and capabilities. And because we serve more than 28 countries industries globally, you'll have the opportunity to develop valuable industry-specific expertise.

The scale of our capabilities and client engagements and the unique way we innovate, operate and deliver value will give you the opportunity to deepen your existing skills even as you help create the latest technology trends. You'll have access to leading-edge technology.

If you are a great Java developer with experience in building scalable SaaS web applications and looking for an opportunity in building world-class products using cutting-edge technologies, please read on.

Nimesa is a Data Protection & Copy Data Management company creating an enterprise-class Backup & Recovery solution. Our product can cater to the needs of the enterprise AWS users who are looking for a 360 Data Protection solution that can do more than just Backup & Recovery.

As a Senior R&D Engineer, You will

• Design and build scalable complex systems with Java and Spring
• Contribute to the development of new features, debugging, and deliver timely fixes
• Perform peer code reviews in order to ensure quality standards

• Experience with Java, Spring Boot, AWS.
• Good at Design patterns, Algorithms.
• Experience with relational databases like PostgreSQL and MySQL
• Good understanding of web programming like REST and HTTP
• Strong Knowledge of Java Concurrency and Collection frameworks
• Knowledge of microservices architecture, messaging systems (RabbitMQ or Kafka), and docker is good to have
• Insights on workings of Database, Queues, Cache, servers.