MERN Stack Developer

About the Role

We’re looking for a Senior Software Engineer who takes ownership seriously, someone who

designs solutions, ships them, and stands behind them in production. You’ll work across a

technically interesting stack on systems that process millions of provider records.

This is a role with real scope: you’ll influence architecture, shape engineering practices, and

work directly with product and leadership to solve hard problems in a domain that genuinely

matters.

Problems You’ll Solve

Healthcare’s provider data problem is a hard distributed systems problem. Hundreds of primary

sources state boards, payers, federal registries each with their own schema, SLA, and failure

mode. Downstream, real credentialing and network decisions depend on whatever truth we can

surface.

API contract stability at velocity. You’re building a platform hundreds of integrations depend

on. How do you evolve a Quarkus/REST API, adding resources, deprecating fields, shifting data

models without breaking consumers? Contract-first design, versioning strategy, and backward

compatibility aren’t theoretical here.Integration reliability at scale. Upstream sources go down, change schemas, and return dirty

data. You’ll build the patterns that absorb that chaos idempotent consumers, dead-letter queues,

circuit breakers, and reconciliation pipelines on top of Kafka and Spanner.

Entity resolution on messy real-world data. Deduplicating and reconciling provider records

across hundreds of heterogeneous sources, where a wrong merge has downstream

consequences. MDM patterns, confidence scoring, and deterministic vs. probabilistic matching

at scale.

AI-augmented velocity without regression. We use Cursor and Claude Code as force

multipliers. The engineering problem is building review culture, eval frameworks, and test

coverage that keeps quality high as output volume increases.

Observability for a data platform, not just a service. Uptime isn’t enough; you need to know

when a provider record is stale, inconsistent, or wrong. You’ll instrument data quality and

lineage, not just p99 latency.

What We’re Looking For

Engineering fundamentals

* 8+ years building and maintaining production-grade systems including systems where

your API is someone else’s dependency and breaking it has real downstream

consequences

* Track record of shipping high-quality software in fast-paced environments you define the

solution, not just implement a spec

* Strong engineering fundamentals: testing, clean code, maintainability, and performance

optimization

* Experience improving system reliability you’ve debugged hard production problems and

made them not happen again, with SLOs and alerting to prove it

* Comfort mentoring earlier-career engineers and influencing technical direction

API & architecture depth

* Deep experience designing and evolving APIs under active consumers: versioning

strategy, backward compatibility, and contract-first thinking

* Fluency across API paradigms REST, GraphQL, gRPC, and async/event-driven APIs

(webhooks, Kafka topics as contracts) and the judgment to know when each is the right

tool

* Hands-on experience with service-oriented and distributed architectures you’ve worked

across SOA, microservices, and event-driven patterns and can make principled tradeoffs

between them based on coupling, latency, and operational complexity

* Experience designing for API consumers as first-class stakeholders SDK ergonomics,

pagination, rate limiting, error semantics, and documentation as part of the contract, not

an afterthought

* Experience with integration patterns at scale you’ve built or maintained systems that

aggregate and normalize data from many heterogeneous upstream sources, and you

understand the reliability and consistency tradeoffs that come with it: circuit breakers, retry

strategies, idempotency, eventual consistency

Data-intensive systems• Strong data modeling instincts you understand the difference between a schema that’s

easy to write and one that’s easy to query, evolve, and trust at scale

* Experience with high-throughput, event-driven systems: you understand ordering

guarantees, consumer lag, and failure modes in Kafka-like architectures

* Strong sense of data quality: lineage, freshness, and correctness matter as much to you

as throughput

AI-era engineering

* In an AI-augmented engineering environment, you write less and review more you’re

skeptical of generated code in the right ways, and you use that leverage to ship 2–3x

what a non-AI-fluent engineer would

* Fluency with AI-assisted engineering tools (Cursor, Claude Code, MCP servers) this is

part of how we work, not a nice-to-have

Communication & compliance

* Strong written and verbal communication you can explain a technical tradeoff to an

engineer and a product manager in the same conversation

* Experience with sensitive data and security best practices (PII, access controls) in

regulated or compliance-adjacent environments

Nice to Have

* Experience building or operating AI/LLM pipelines in production (not just prototypes)

including eval frameworks, fallback behavior, and monitoring for non-deterministic outputs

* Experience with entity resolution or MDM systems at scale deduplicating messy

real-world data across disparate sources

* Familiarity with healthcare credentialing workflows

* Familiarity with healthcare, compliance, or regulated environments

Technologies & Tools

Java 21 / Quarkus · React / TypeScript · GCP (Spanner, BigQuery) · Kafka · Docker /

Kubernetes · GitHub Actions · Sentry · REST / GraphQL / gRPC · Cursor / Claude

Code / Codex

Job Summary:

We are looking for a highly skilled MERN Stack Developer with at least 3 years of experience to join our team. As a Team Lead, you will be responsible for designing, developing, and optimizing web applications while mentoring junior developers. Strong communication skills and leadership abilities are essential for this role.

Key Responsibilities:

Full-Stack Development

• Develop, optimize, and maintain scalable applications using MongoDB, Express.js, React.js, and Node.js.
• Implement best coding practices, reusable components, and maintain high-performance applications.

Technical Leadership

• Lead a team of developers, conduct code reviews, and provide technical mentorship.
• Ensure the team follows best practices, development standards, and project timelines.

Backend & Database Management

• Design and implement RESTful APIs, GraphQL, and backend logic.
• Optimize MongoDB queries, indexing, and schema design for performance.

Frontend Development

• Develop interactive and responsive UI components using React.js, Redux, Next.js, or TypeScript.
• Ensure seamless user experience and cross-browser compatibility.

Collaboration & Deployment

• Work closely with UI/UX designers, product managers, and DevOps for smooth project execution.
• Manage CI/CD pipelines, cloud deployments (AWS, Firebase, Heroku), and ensure system security.

Requirements:

✔ 3 years of experience in MERN Stack development.

✔ Strong expertise in JavaScript, TypeScript (preferred), and modern frameworks.

✔ Experience leading teams, conducting code reviews, and mentoring junior developers.

✔ Knowledge of Docker, Kubernetes, CI/CD pipelines, and cloud platforms.

✔ Strong problem-solving skills and ability to troubleshoot performance issues.

✔ Excellent communication skills and ability to work in an Agile team environment.

Lead Java Full Stack Engineer

Pune, Maharashtra, India

Must-Haves :

Top Mandatory Skills: Java, Microservices, Spring Boot, React, JavaScript, typeScript 

Joining time / Notice Period: Immediate joiners

Minimum Relevant Experience: 08+ Years

************

No gaps in organization

No job hoppers(candidate must have good stability)

Joining time / Notice Period: Immediate to 30 days

No Poach Clients (Plus other Strict No-Nos) :

NA 

Nice to Haves :

Skills: Cryptography

Target Companies :

Additional Guidelines :

Office Location : Pune - Hybrid work Model - 3 days a week

Interview Process : 2 - 3 Technical Rounds (Panel in the US)

Relocation Expenses: NA

Notice period : Immediate to 30days

• Experience building applications using NodeJS and frameworks such as Express.
• Thorough understanding of React.js and NodeJS including its core principles.
• Ability to understand business requirements and translate them into technical requirements.
• Familiarity with code versioning tools (such as Git, SVN, and Mercurial).
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Strong experience with MongoDB, Postgres
• Highly proficient with Vue.js framework and its core principles such as components, reactivity, and the virtual DOM
• Familiarity with the Vue.js ecosystem, including Vue CLI, Vuex, Vue Router
• Good understanding of HTML5 and CSS3, and Sass 
• Understanding of server-side rendering and its benefits and use cases

• Proficiency in Java, with a good understanding of its ecosystems
• 2+ Yrs experience in microservices
• Sound knowledge of Object-Oriented Programming (OOP) Patterns and Concepts
• Familiarity with different design and architectural patterns
• Skill for writing reusable Java libraries
• Know how of Java concurrency patterns
• Basic Understanding of the concepts of MVC (Model-View-Controller) Pattern, JDBC (Java Database Connectivity), and RESTful web services
• Experience in working with popular web application frameworks like Play and Spark
• Relevant Knowledge of Java GUI frameworks like Swing, SWT, AWT according to project requirements
• Ability to write clean, readable Java code
• Experience in handling external and embedded databases
• Understanding basic design principles behind a scalable application
• Skilled at creating database schemas that characterize and support business processes
• Basic knowledge of JVM (Java Virtual Machine), its drawbacks, weaknesses, and workarounds
• Implementing automated testing platforms and unit tests
• In-depth knowledge of code versioning tools, for instance, Git
• Understanding of building tools like Ant, Maven, Gradle, etc
• Expertise in continuous integration
• Other required skills of a java developer include the basic knowledge of:
• JavaServer pages (JSP) and servlets
• Web frameworks like Struts and Spring
• Service-oriented architecture
• Web Technologies like HTML, JavaScript, CSS, JQuery
• Markup Languages such as XML, JSON
• Abstract classes and interfaces
• Constructors, lists, maps, sets
• File IO and serialization
• Exceptions
• Generics
• Java Keywords like static, volatile, synchronized, transient, etc
• Multi-threading and Synchronization

What you need to have:

Job Description:

In this role, you will:

• Be responsible for building APIs, coding, documenting and maintaining scalable web/mobile applications in a fast-paced environment
• Be involved in conceptualization of IOT product features & AI Model Integrations, designing, development and debugging in the real-time environment
• Collaborate with multiple stakeholders to deliver products in an agile environment
• Continuous Integration and Continuous Deployment

Required Skills :

• Good understanding of Data Structures &Algorithms with strong analytical skills.
• Deep understanding of javascript and web fundamentals like HTML, CSS3, Boostrap 3, SDKs, cookies, Sockets,
• Experience in programming languages: nodejs, python, java, Angular/React JS,
• Knowledge of Relational and Non-relational Databases and Cache like MySQL, Mongo, Elasticsearch, Redis etc
• Knowledge of RESTful paradigms and to experience building/consuming APIs, microservices & system design architecture
• Experience in client side technologies like JavaScript, jQuery, Typescript and React JS.
• Good in Building UI/UX of web application and integration of backend and frontend
• Capable of hosting AI model on AWS cloud by developing APIs

Desired Skills:

• Ability to break complex projects into modules and propose effective solutions in view of capabilities of existing platforms and infrastructure.
• Experience in managing build/deployment pipelines for continuous integration and continuous delivery to improve the quality and availability of products & services.
• Understanding of cloud architecture and cloud deployments - AWS SQS, Lambda, EC2, S 3, Azure, other cloud technologies