FullStack Developer (Java/ React)

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

About the Role:

NeoGenCode is looking for a highly skilled Lead Java Fullstack Developer to join their agile development team. The ideal candidate will bring strong expertise in Java, Angular, and Spring Boot, with hands-on experience in developing and deploying enterprise-level microservices in cloud environments (especially AWS). The candidate will be expected to lead technically while remaining hands-on, guiding junior developers and ensuring top-quality code delivery.

Key Responsibilities:

• Act as a technical lead and contributor in a cross-functional agile team.
• Analyze, design, develop, and deploy web applications using Java, Angular, and Spring Boot.
• Lead sprint activities, task allocation, and code reviews to ensure quality and timely delivery.
• Design and implement microservices-based architecture and RESTful APIs.
• Ensure performance, security, scalability, and maintainability of the applications.
• Maintain CI/CD pipelines using GitHub, Jenkins, and related tools.
• Collaborate with business analysts, product managers, and UX teams for requirement gathering and refinement.

Technical Requirements:

✅ Core Technologies:

• Java (Java 21 preferred) – minimum 5+ years of hands-on experience
• Spring Boot (MVC, Spring Data, Hibernate) – strong hands-on experience
• Angular (Angular 19 preferred) – minimum 2+ years of hands-on experience

✅ Cloud & DevOps:

• Experience in AWS ecosystem (especially S3, Secrets Manager, CloudWatch)
• Experience with Docker
• Familiarity with CI/CD tools (Jenkins, GitHub, etc.)

✅ Database:

• PostgreSQL or other RDBMS
• Familiarity with NoSQL databases is a plus

✅ Frontend Proficiency:

• HTML5, CSS3, JavaScript, AJAX, JSON
• Angular concepts like Interceptors, Pipes, Directives, Decorators
• Strong debugging and performance optimization skills

✅ Testing & Tools:

• Unit testing using Jasmine/Karma or Jest is a plus
• Experience with tools like JIRA, Azure DevOps, Confluence



Soft Skills & Other Expectations:

• Excellent verbal and written communication skills
• Prior consulting or client-facing experience is a big plus
• Strong analytical, problem-solving, and leadership abilities
• Familiarity with Agile/Scrum methodology
• Self-motivated and adaptable with a strong desire to learn and grow

Fuzen is a no-code SaaS platform founded and backed by IIT alumni.

We help non-technical SaaS founders bring their product ideas to life at ZERO upfront cost. We are building a marketplace of simple SaaS apps by helping founders to build products with our no-code platform.

The majority of our customers come from traditional industries like - construction, engineering, transportation, consulting etc. and we have recently received seed funding from angel investors.

We are looking for software developers who are good at problem-solving and are interested in product building.

1. Write clean, maintainable, and efficient code
2. Design robust, scalable and secure systems
3. Contribute to all phases of the development lifecycle
4. Follow best practices (test-driven development, continuous integration, SCRUM, refactoring, and code standards)
5. Drive continuous adoption and integration of relevant new technologies into the design.
6. You will be expected to work on Ruby On Rails, React JS, AWS, Heroku, Google Cloud and 3rd party API integrations.

IMPORTANT - Fuzen is an early-stage startup. The work culture is fast-paced and challenging. The job will be demanding and will offer a lot of learning. You should apply only if all of this excites you.

• Proficient in creating Web (Responsive) applications using Angular 8+, AngularJS, JavaScript, JQuery. 
• Experience developing/consuming RESTAPIs
• Knowledge of multiple back-end languages Like Java, Python and JavaScript frameworks(e.g. Node.js)
• Familiarity with databases (e.g.MSSQL, MySQL), and UI/UX design
• Hands-on experience with code versioning systems like Git, SVN. 

• We are looking for a very Senior or Lead backend engineer with specialization in .NET technologies.
• This is an exciting opportunity to build a clean and modern framework for a customer-facing ecommerce product. You will be part of a product team in San Francisco, USA and Bengaluru, India.
• If you are passionate about building scalable services, you are well-versed with web technologies like MVC, you enjoy working with super smart people that you can learn from and contribute to their knowledge – this is the perfect position for you.
• You should have prior experience in leading engineering projects in an Agile environment, i.e. work with Product Managers to convert product specifications to technical specifications; design and code for complex features; ensure clean code is delivered by team.
• Our core application is used by 100,000+ paying customers, so there's lot of opportunity to make direct impact.

Requirements: ·

• 5+ years of experience in .NET and C#
• Expertise in developing services (SOAP-WCF and REST)
• Expertise in web development frameworks like ASP.NET MVC
• Good knowledge of database concepts and Microsoft SQL Server
• Solid foundation in computer science, with strong competencies in data structures, design patterns, concurrency, algorithms, and software design
• Experience working in any of the JavaScript frameworks like Ember.js, AngularJS or ReactJS is a bonus.
• Strong analytical and troubleshooting skills;
• Bachelors or Master’s degree in Computer Science (or equivalent).
• Note: Bangalore Office at WeWork-Bellandur.
• Salary will be on-par with best in Bangalore.

Skills we are looking for :

- Experience in developing full-stack applications at scale in ReactJs/AngularJs & NodeJs.

- Strong knowledge and experience in HTML(5), CSS, SCSS, and Advanced JavaScript

- Good knowledge of coding RESTful APIs.

- Strong knowledge of Web Storage (Cookie, Local Storage, and Session Storage)

- Knowledge of modern authorization mechanisms, such as JWT

- Familiarity with modern front-end build pipelines and tools

- Ability to work in a lean-agile development environment.

Good to know :

- Using GIT

- Knowledge of AWS

- Familiarity with GraphQL will be a brownie point