Java FullStack (UK Shift)

ElevenX Capital

EXC is a venture studio and venture capital fund that builds companies from the ground up.

ElevenX redefines the traditional venture capital model by combining ideas, capital and talent to create and scale companies across various sectors, including cybersecurity, artificial intelligence, and education and workforce management.

The firm brings together experienced entrepreneurs and value creation specialists in marketing, sales, engineering, talent, legal and finance to support the development of new ventures from inception to scale.

Headquarters: Miami, Florida || Venture Studio: Gurgaon, India

FullStack Engineer :

Experience

Timings

Job Summary

We are building a scalable, multi-tenant SaaS integration platform that enables clients to connect, transform, and automate data flows across files, APIs, and databases. We are looking for a Fullstack Engineer with strong experience in Java, Angular, and Kafka to join our core product team.

Key Responsibilities

• Develop backend microservices using

  Java (Spring Boot)

• Build responsive frontend interfaces using

  Angular

• Implement connectors for

  file-based (CSV, Excel, XML), REST/SOAP APIs, and SQL/NoSQL databases

• Design and implement

  Kafka-based pipelines

  for large-scale data ingestion and processing
• Ensure

  guaranteed delivery

  ,

  message durability

  , and

  exactly-once/at-least-once semantics

• Build

  tracing and debugging tools

  for connector executions and data flows
• Develop scheduling and transformation engines for automated workflows
• Support multi-tenancy for integrations across multiple clients
• Collaborate with cross-functional teams to deliver high-quality features
• Participate in code reviews, architecture discussions, and CI/CD pipeline setup

Required Skills

• 3+ years

  of fullstack development experience
• Strong proficiency in

  Java (Spring Boot)

  and

  Angular

• Hands-on experience with

  Apache Kafka

  (producer/consumer, topic partitioning, delivery guarantees)
• Experience with

  distributed tracing tools

  (OpenTelemetry, Jaeger, Zipkin)
• Strong debugging skills in

  event-driven architectures

• Experience with

  RESTful APIs

  ,

  SOAP

  , and

  database integrations

• Knowledge of

  scheduling frameworks

  (Quartz, Spring Scheduler)
• Understanding of

  multi-tenant SaaS architecture

Good to Have

• Familiarity with

  file parsing libraries

  (Apache POI, OpenCSV)
• Familiarity with

  Docker

  ,

  Kubernetes

  , and

  CI/CD pipelines

• Exposure to

  cloud platforms

  , especially

  AWS

• Knowledge of

  OAuth2/JWT-based authentication

• Experience with

  monitoring/logging tools

  (Prometheus, Grafana, ELK)