Senior Software 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.

Strong Backend Engineer Profiles

Mandatory (Experience 1) – Must have 2+ years of hands-on Backend Engineering experience building production-grade systems in a B2B SaaS or product environment

Mandatory (Experience 2) – Must have strong backend development experience using at least one backend framework such as FastAPI / Django (Python), Spring (Java), or Express (Node.js)

Mandatory (Experience 3) – Must have a solid understanding of backend fundamentals, including API development, service-oriented architecture, data structures, algorithms, and clean coding practices

Mandatory (Experience 4) – Must have strong experience working with databases (SQL and/or NoSQL), including efficient data modeling and query optimization

Mandatory (Experience 5) – Must have experience designing, building, and maintaining APIs and backend services, including integrations with external systems (CRMs, payment gateways, ERPs, data platforms, etc.)

Mandatory (Experience 6) – Must have experience working in cloud-based environments (AWS / GCP / Azure) and be familiar with Git-based collaborative development workflows

Mandatory (Domain) – Experience with financial systems, billing platforms, fintech applications, or SaaS revenue-related workflows is highly preferred

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

Key Responsibilities:

• Involve in the Design And Development Of Scalable Backend Applications Using Java (Spring Boot).
• Mentor And Guide A Team Of Developers To Ensure High-Quality Deliverables.
• Take Ownership Of Solution Architecture, Coding Standards, And Design Patterns.
• Develop And Manage Restful Apis And Integrate Third-Party Services.
• Collaborate With Front-End Teams, Qa, And Stakeholders To Align Technical Implementation With Business Goals.
• Oversee Deployments In Hybrid Cloud Environments In Coordination With Devops Teams.
• Conduct Code Reviews, Lead Design Discussions, And Manage Agile Development Processes (Scrum/Kanban).
• Monitor Application Performance And Drive Improvements Proactively.
• Troubleshoot And Resolve Complex Software Issues Across Systems And Services.

Required Skills:

• 6+ Years Of Professional Experience In Java Development.
• Strong Hands-On Expertise In Spring Boot And Microservices Architecture.
• Working Knowledge Of Node.Js And Javascript/Typescript.
• Experience With Rest Apis, Sql/Nosql Databases (Mysql, Postgresql, Mongodb).
• Familiar With Ci/Cd Pipelines, Git, And Modern Devops Practices.
• Proven Ability To Lead Distributed Teams And Manage Deliverables In A Remote/Hybrid Work Setup.
• Strong Communication, Leadership, And Problem-Solving Skills.

We are hiring a Node.js Developer (1-3 years experience) for a full-time role in Wakad, Pune. The candidate must have expertise in Node.js, Nest.js, and Express.js, along with proficiency in MongoDB, MySQL, and ORM libraries. Experience with AWS services, Docker, Kubernetes, and CI/CD pipelines is required. Strong knowledge of authentication mechanisms (JWT, OAuth, Passport.js) and version control (Git) is essential

This is a remote position.

SyncEzy is a SAAS integration company and we build deep integrations between the world's leading applications. We are looking to expand our integrations to other areas and are looking for Four Experienced Developers to join our team.

Senior Laravel / PHP Full Stack Developer - Work from Home/ Remote Role

The right candidate will:

• Have developed integrations or applications using the Laravel Framework and Microservices.
• Develop deep functional integrations between applications using publicly documented APIs.
• Have a strong experience using tools like Postman to consume APIs from Salesforce, Zoho, Mailchimp, Infusionsoft, Xero, Quickbooks, Shopify, Procore, simPRO, or similar apps.
• Solve complex performance problems and architectural challenges. Work on bug fixing and improving application performance.
• Understand business requirements based on spec sheets and build deep functional integrations
• Work well with the existing team of developers
• Have demonstrable knowledge of web technologies including PHP Laravel framework, Angular, NodeJs
• Experience with SOAP, REST, and other APIs
• Experience with OAuth, Managing Security, and access tokens, encryption, Single Sign-On.

Recruitment Process:

Round 1: Only shortlisted candidates will be contacted for a video conferencing interview.

Round 2: Shortlisted candidates will be asked to Software Development Test assignment task, You will be paid for up to 8 hours based on the time taken to complete the task.

Round 3: Personal Interview / Meet the team / Offer if successful.

* Less than 5 years experience? Please do not apply for this role.

** If you are not prepared to do a programming test, Do NOT APPLY.

*** Working from Home is mandatory, we do not have a physical office!

Requirements:

Must-Have Skills:

• Minimum 5 years of hands-on experience with Laravel framework.
• Minimum 3 years experience with public APIs of world-leading applications like (Salesforce, Zoho, Mailchimp, Xero, Quickbooks, Shopify, or more)
• BS/MS degree in Computer Science, Bachelors in Engineering IT / Computer Science. BCA in Computers, B.Sc in Computers, B.Tech/B.E. in Computers
• PG Diploma in Computers, MCA in Computers, M.Tech in Computers, MS/M.Sc(Science) in Computers.

Must have requirements for all Remote Roles with SyncEzy

• A very good internet connection 50mbps minimum. (Please do a speed test BEFORE applying)
• A proper work desk/setup at home and a quiet place to work.
• A Laptop / Computer during your probation period, we will provide company hardware laptop / PC, Headphones, standup desk, etc. upon confirmation.
• Excellent English communication skills, written and verbal

Compensation:

CTC: 8 lacs to 10 lacs

Benefits

A TRUE Remote / Work from the Home position. We are a Global Remote company and have been remote working long before it was made popular by COVID. We have staff dispersed across 4 countries and 15 cities. We pride ourselves on running a flat organization, with a friendly easy-going culture.

Competitive Salary + All the below

• Allowance for Internet / Phone costs
• Company Hardware provided after completing probation.
• Flexible, family-friendly & fun work environment
• Continuous development and education allowances.
• Flexible Remote work from anywhere (As long as you have good internet and communication)
• Excellent growth opportunities, and growth into leadership for the right candidate.
• Generous policies around leave / social and training allowances
• End-of-year bonuses based on company + Individual performance.
• Zero Commute, Work while you work, play while you play. Perfect Work / Life balance.

Role / Purpose - Lead Developer - API and Microservices

Must have a strong hands-on development track record building integration utilizing a variety of integration products, tools, protocols, technologies, and patterns.

• Must have an in-depth understanding of SOA/EAI/ESB concepts, SOA Governance, Event-Driven Architecture, message-based architectures, file sharing, and exchange platforms, data virtualization and caching strategies, J2EE design patterns, frameworks
• Should possess experience with at least one of middleware technologies (Application Servers, BPMS, BRMS, ESB & Message Brokers), Programming languages (e.g. Java/J2EE, JavaScript, COBOL, C), Operating Systems (e.g. Windows, Linux, MVS), and Databases (DB2, MySQL, No SQL Databases like MongoDB, Cassandra, Hadoop, etc.)
• Must have experience implementing API Service architectures (SOAP, REST) using any of the market-leading API Management tools such as Apigee and frameworks such as Spring Boot for Microservices
• Should have Advanced skills in implementing API Service architectures (SOAP, REST) using any of the market-leading API Management tools such as Apigee or similar frameworks such as Spring Boot for Microservices 
• Appetite to manage large-scale projects and multiple tracks
•  Experience and knowhow of the e-commerce domain and retail experience are preferred

Our core customer-facing product today is a native Android application. In addition to this, we are building internal tools for customer support, investment management, marketing analytics and business management. In the future, we plan to hugely expand the features in our core product, build iOS and web products, and continuously improve our internal tools to better serve our customers.

For our back-end, we use Node.js / MySQL / AWS. We are currently a 3-member engineering team (1 back-end, 1 Android, 1 full stack) led by our founding engineer and advised by a senior technology executive from a leading fintech company.

Key Responsibilities of the Role

• Design, develop, test, deploy, maintain, and improve our software applications
• Build reusable libraries and frameworks that support complex web applications
• Set-up our technology infrastructure and integrate with 3rd party applications
• Contribute to internal discussions around product features, roadmap and technologies used
• Mentor & recruit engineers to the team
• Set up processes related to engineering & product

Skills / Required Experience:

• B.Tech / M.Tech in Computer Science or equivalent, with solid foundational knowledge in at least two general programming languages, data structures, algorithms, system architecture, security and networking protocols.
• At least 6 years of back-end development experience in a software product company is required for this role.
• Exposure to modern software development processes, multiple front-end and back-end technologies, and open-source software.
• Proficiency with tools like Gitlab/Jira/Firebase, as well as AWS and commonly used database systems etc. is required
• Experience in an early-stage startup or having founded your own startup would be good to have (but not necessary).

• Proven hands-on Software Development experience
• Proven working experience in Java development

• Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
• Experience in the Spring boot , hibernate Framework