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Java Developer Startup Jobs in New York (NOW HIRING)

dMetrics

Senior Backend Engineer

Brooklyn, NY · On-site

In doing so, you will solve a wide variety of engineering challenges, ranging from data flow, to ... for a startup before. US Citizens or Green Card holders only. Qualifications * Java (5+ yr)

dMetrics

Senior Backend Engineer

Brooklyn, NY · On-site +1

In doing so, you will solve a wide variety of engineering challenges, ranging from data flow, to ... for a startup before. US Citizens or Green Card holders only. Qualifications * Java (5+ yr)

Virtusa Corporation

QA Tech Lead

New York, NY · On-site

$141K/yr

... Java, Kotlin, and C++ . Hardware Integration Lead the technical bring-up and testing of next ... startup times specifically tailored for lower-spec TV hardware chipsets. User Experience ...

SpaceXAI

Software Engineer - X Money

New York, NY · On-site

$180K - $440K/yr

This is an opportunity to work on greenfield projects in a fast-paced, startup-like environment ... Java, and high volume streaming systems. * 2+ years of experience working on large scale consumer ...

Kale

Senior Software Engineer

Manhattan, NY · On-site

$134K - $177K/yr

... related role • Strong programming skills in Kotlin/Java, Javascript, React, GraphQL • ... a software startup. • Experience as a technical mentor. • Experience designing and building ...

NxT Level

Senior Technical Product Manager

Manhattan, NY · On-site

$182K - $211K/yr

Backend: Java, Redis, RabbitMQ, Kubernetes * Infrastructure: Terraform, Salt, GitHub Actions ... Collaborate with top-tier engineers and product leaders in an exciting startup environment

Adidev Technologies Inc

Junior IOS developer

Manhattan, NY · On-site

$56.75 - $78/hr

Hundreds of Fortune 1000 and innovative startup clients with thousands of successful projects ... Proficiency in Java and Kotlin (at least 1 year of experience). * Published at least 1 application ...

Adidev Technologies Inc

Junior IOS developer

Manhattan, NY

$56.75 - $78/hr

Hundreds of Fortune 1000 and innovative startup clients with thousands of successful projects ... Proficiency in Java and Kotlin (at least 1 year of experience). * Published at least 1 application ...

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Java Developer Startup information

What is a Java developer startup?

A Java Developer Startup job involves designing, developing, and maintaining Java-based applications in a fast-paced startup environment. Developers work on scalable solutions, collaborate with cross-functional teams, and adapt to evolving product requirements. Unlike corporate roles, startup jobs often require versatility, problem-solving skills, and the ability to work with limited resources.

What are the key skills and qualifications needed to thrive as a Java developer in a startup?

A successful Java Developer in a startup environment should have strong proficiency in Java, object-oriented programming principles, and experience with frameworks like Spring or Hibernate, often backed by a degree in computer science or a related field. Familiarity with version control systems (like Git), CI/CD pipelines, and cloud platforms is highly valued, and industry certifications such as Oracle Certified Professional can be advantageous. Soft skills like adaptability, proactive problem-solving, and clear communication help developers collaborate in small, fast-paced teams. These competencies are essential for quickly delivering high-quality software and driving innovation in the dynamic startup landscape.

What kind of work environment and team structure can I expect as a Java developer in a startup?

As a Java Developer in a startup, you'll typically work in a small, agile team where roles can be fluid and collaboration is highly encouraged. You may have the opportunity to work closely with product managers, designers, and other developers, allowing for greater input into the overall direction of the product. Daily responsibilities often extend beyond coding to include brainstorming sessions, code reviews, and quick iteration based on user feedback. The environment is fast-paced, offering opportunities for rapid skill development and taking on new responsibilities as the company grows. This setting is ideal for those who enjoy problem-solving, continuous learning, and making a direct impact on the product and business.

What are the most commonly searched types of Java Developer Startup jobs in New York?

The most popular types of Java Developer Startup jobs in New York are:

What are popular job titles related to Java Developer Startup jobs in New York?

For Java Developer Startup jobs in New York, the most frequently searched job titles are:

What job categories do people searching Java Developer Startup jobs in New York look for?

The top searched job categories for Java Developer Startup jobs in New York are:

Java Developer Startup jobs near you
Infographic showing various Java Developer Startup job openings in New York as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

Backend Engineer (US Eastern Time Zone)

MDOTM

Manhattan, NY • On-site

$90 - $130/hr

Other

Re-posted 10 days ago

Job description

About MDOTM

MDOTM is the Global leader in AI-driven investment solutions. Founded in 2015, we earned significant recognition in 2017 as the only European fintech startup selected by Google for its acceleration program in Silicon Valley.

Since then, we have been growing continuously, establishing a strong international presence with offices in London, Milan and New York.

If you are looking for a fast-paced environment and are willing to take ownership, this is the right opportunity for you!

Role Overview

MDOTM is seeking a Java Software Engineer to join our Engineering team. You will be actively contributing to the development and optimization of our high-performance Spring Boot backend, ensuring scalability, reliability, and security.

Key responsibilities
  • Develop, maintain, and optimize scalable Spring Boot application
  • Implement clean, modular, and testable Java code
  • Contribute to design and implement features following relational (MySQL) and NoSQL (MongoDB) databases
  • Implement and follow best practices in software architecture, leveraging Layered Architecture, DDD, or Event-Driven design
  • Troubleshoot and optimize backend performance and security
  • Work with DevOps teams to improve CI/CD automation and deployment processes
Requirements
  • Experience in Java & Spring Boot (microservices, REST APIs)
  • Proficiency with SQL & NoSQL databases
  • Experience with software architecture patterns (Layered Architecture, DDD, Event-Driven Design)
  • Experience with TDD and testing best practices in Spring Boot (JUnit, Mockito, Testcontainers)
  • Experience with messaging systems (ActiveMQ, Kafka)
  • Good knowledge of English (both written and spoken)
  • Excellent communication skills, with the ability to explain complex problems and solutions to different stakeholders.
Bonus Points
  • Experience with modern API communication (GRPC, GraphQL, REST)
  • Hands‑on experience with CI/CD tools (GitLab Pipelines, GitHub Actions, Jenkins)
  • Experience with AWS, especially EC2, S3
  • Hands‑on experience with Docker & Kubernetes for containerized application deployment and management
  • Security best practices for backend applications (knowledge of ISO 27001:2022 Annex A 8.28 is a plus)
Why Join Us?
  • Work at the leading edge of technology, leveraging our decade of experience in proprietary AI to build the next generation of industry-defining tools.
  • Competitive salary & truly flexible work environment.
  • Benefit from an unlimited learning and development budget to stay at the bleeding edge of AI research, alongside a fast‑track path into technical leadership or principal research roles.
  • Collaborate daily with an ultra‑international team (18+ nationalities) spread across our offices in Milan, London and New York.
  • Annual company retreat at a stunning location.
  • Fast‑track career progression, with opportunities to grow into leadership roles.
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