back end developer jobs in New York

We are looking for a Back-End Software Engineer to help build, enhance, and modernize digital platforms, content management systems, and customer-facing web applications. The ideal candidate has a strong foundation in Node.js and TypeScript, experience developing APIs and integrating headless content management systems, and an understanding of scalable web...

Golang Backend Developer Payments Domain | Contract (C2C / W2) | Direct Client Location O'Fallon, Missouri, USA (Onsite) Experience 10+ years Engagement Contract — C2C / W2 Work Authorization H-1B only Domain Payments / Financial Services Role Summary We are looking for a senior Golang Backend Developer to design and build high-availability,...

Founding Engineer | New York, NY | Up to $200,000 + equity | On-site, 5 days/week A stealth, well-funded fintech building institutional-grade infrastructure for prediction markets, one of the most interesting new asset classes to emerge in years. Their seed round recently closed and was oversubscribed. This is their first engineering hire. About the...

We are looking for a Back-End Software Engineer to help build, enhance, and modernize digital platforms, content management systems, and customer-facing web applications. The ideal candidate has a strong foundation in Node.js and TypeScript, experience developing APIs and integrating headless content management systems, and an understanding of scalable web...

Founding Engineer | New York, NY | Up to $200,000 + equity | On-site, 5 days/week A stealth, well-funded fintech building institutional-grade infrastructure for prediction markets, one of the most interesting new asset classes to emerge in years. Their seed round recently closed and was oversubscribed. This is their first engineering hire. About the role ...

I’m working with a fast-growing fintech hiring Backend Engineers from mid-level through Staff to join their NYC engineering team. The interesting part? They’re pivoting their backend stack from Java to Go as part of a wider replatform, so they’re looking for experienced Go engineers who can help shape the transition, architecture and systems being...

CPP & Rust Software Engineer Intern (paid) GoQuant Technologies Inc About Us GoQuant develops solutions that make life easier and more profitable for digital asset traders and researchers. We do so primarily by increasing transparency, boosting speed, and placing decisions in the hands of users. We currently offer two solutions: GoMarket and GoTrade....

What you have Follow the technical lead, implement stories and collaborate with partners to deliver SPAs, RESTful APIs, common frameworks and libraries for data quality, data observability, data transformation that can be used across different applications in Wealth Management Engineering by designing, developing, testing, and support. Implement and...

Founding Engineer | New York, NY | Up to $200,000 + equity | On-site, 5 days/week A stealth, well-funded fintech building institutional-grade infrastructure for prediction markets, one of the most interesting new asset classes to emerge in years. Their seed round recently closed and was oversubscribed. This is their first engineering hire. About the role ...

Back-End Developer - Data Engineering Ampcus Inc. is a certified global provider of a broad range of Technology and Business consulting services. We are in search of a highly motivated candidate to join our talented team. Location(s): Wilmington, DE, McLean, VA, Richmond, VA or NYC hybrid Job Summary: We are seeking an experienced Back-End Developer...

Sr. Back-End Developer, Vice President Location(s): Singapore, Singapore, Singapore Job Type: Hybrid Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your...

What you have Follow the technical lead, implement stories and collaborate with partners to deliver SPAs, RESTful APIs, common frameworks and libraries for data quality, data observability, data transformation that can be used across different applications in Wealth Management Engineering by designing, developing, testing, and support. Implement and...

Introduction At IBM, work is more than a job - it's a calling: To build. To design. To code. To consult. To think along with clients and sell. To make markets. To invent. To collaborate. Not just to do something better, but to attempt things you've never thought possible. Are you ready to lead in this new era of technology and solve some of the world's...

Back-End Java Developer With Python And MongoDBNew York (Remote 100%) ContractWe're ideally looking for applicants with solid experience with Java/J2EE, Python, MongoDB. Rest API would come as a big plus. Looking for experienced developer. 5 plus years of hands on industry experience. The team is looking for a Java Developer to join their team! The...

Founding Engineer | New York, NY | Up to $200,000 + equity | On-site, 5 days/weekIf you are interested in applying for this job, please make sure you meet the following requirements as listed below.A stealth, well-funded fintech building institutional-grade infrastructure for prediction markets, one of the most interesting new asset classes to emerge in...

Develop and maintain a rapidly expanding AI Core Platform, as well as building applications on top.Develop APIs & Batch Processing with technologies such as Python, Flask, Java, Spring, MSSQL, Snowflake in an Azure infrastructure.Help design and drive the implementation of a scalable and robust core AI platform and models to enhance operational...

Job Title Back End Developer Intern - Poughkeepsie, NY - 2027 Date posted 15-Oct-2026 Job ID 137105 City / Township / Village POUGHKEEPSIE State / Province New York Country United States Work arrangement Hybrid Area of work Infrastructure & Technology Employment type Co-Op (Fixed Term) Contract type Internship Projected Minimum Salary per year...

Job Title Back End Developer Intern - Poughkeepsie, NY - 2027 Date posted 15-Oct-2026 Job ID 137086 City / Township / Village POUGHKEEPSIE State / Province New York Country United States Work arrangement Hybrid Area of work Infrastructure & Technology Employment type Co-Op (Fixed Term) Contract type Internship Projected Minimum Salary per year...

Job Title Back End Developer Intern - Poughkeepsie, NY - 2027 Date posted 15-Oct-2026 Job ID 137106 City / Township / Village POUGHKEEPSIE State / Province New York Country United States Work arrangement Hybrid Area of work Infrastructure & Technology Employment type Co-Op (Fixed Term) Contract type Internship Projected Minimum Salary per year...

Job Title Back End Developer Intern - Poughkeepsie, NY - 2027 Date posted 15-Oct-2026 Job ID 137095 City / Township / Village POUGHKEEPSIE State / Province New York Country United States Work arrangement Hybrid Area of work Infrastructure & Technology Employment type Co-Op (Fixed Term) Contract type Internship Projected Minimum Salary per year...