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Mid Backend Developer Jobs in New York (NOW HIRING)

TecTammina

Data Developer

New York, NY · On-site

Company Description Tech Tammina LLC Data Developer - Investment Company C#, mid-tier and backend development, financial, pl/sql Mid-tier and backend is programming on the server side rather than GUI ...

Helloslang

Backend Engineer

Manhattan, NY · On-site

$90 - $150/hr

You'll spend roughly 90% of your time developing backend services in Kotlin, with occasional ... Once ramped up, you'll have opportunities to mentor junior and other mid-level engineers through ...

Voiceflow

Backend Engineer

Manhattan, NY · On-site

$120 - $160/hr

About the Role We're looking for a BackEnd Engineer to join our growing team at Fun and help ... Payments Infrastructure - Mid, Senior, Staff, or Principal Levels. Responsibilities * Design, build ...

Slang AI

Sr Backend Engineer

New York, NY · On-site

$185K - $215K/yr

Our backend is written in Kotlin, but prior Kotlin experience is not required; strong fundamentals ... You'll mentor junior and mid-level engineers through code reviews and pair programming, and set the ...

Slang

Sr Backend Engineer

Manhattan, NY · On-site

$185 - $215/hr

Our backend is written in Kotlin, but prior Kotlin experience is not required; strong fundamentals ... You'll mentor junior and mid-level engineers through code reviews and pair programming, and set the ...

Slang AI

Backend Engineer

New York, NY · On-site

$162K/yr

Once ramped up, you'll have opportunities to mentor junior and other mid-level engineers through ... Design and implement scalable Kotlin backend services following domain-driven design principles ...

Mistral AI

Software Engineer, Backend

New York, NY · On-site

Your work will directly impact the developer and user experience, making it more engaging, efficient, and intuitive. We welcome engineers from mid-level to senior and staff engineers who are eager to ...

fun.xyz

Backend Engineer

New York, NY · On-site

$150K - $300K/yr

About the Role We're looking for a BackEnd Engineer to join our growing team at Fun and help ... Payments Infrastructure - Mid, Senior, Staff, or Principal Levels Responsibilities * Design, build ...

fun.xyz

Backend Engineer

New York, NY · On-site

$150K - $300K/yr

About the Role We're looking for a BackEnd Engineer to join our growing team at Fun and help ... Payments Infrastructure - Mid, Senior, Staff, or Principal Levels Responsibilities * Design, build ...

fun.xyz

Backend Engineer

New York, NY

$155K - $300K/yr

About the Role We're looking for a BackEnd Engineer to join our growing team at Fun and help ... Payments Infrastructure - Mid, Senior, Staff, or Principal Levels Responsibilities * Design, build ...

Pinwheel

Product Engineer, Backend

New York, NY · Hybrid

$160K - $190K/yr

Who are we looking for? We're hiring a mid-to-senior backend-leaning Product Engineer for our Product Engineering team. The PE team builds all the things our customers and their users use: public ...

De Circle

Back End Engineer - Fun.xyz

New York, NY · On-site +1

About the Role We're looking for a BackEnd Engineer to join our growing team at Fun.xyz and help ... Payments Infrastructure - Mid, Senior, Staff, or Principal Levels Responsibilities * Design, build ...

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All JobsMid Backend Developer JobsMid Backend Developer Jobs in New York

Mid Backend Developer information

What is a mid backend developer?

Mid Backend Developers are software engineers with intermediate experience who focus on building, maintaining, and optimizing the server-side components of web or mobile applications. They typically work with databases, APIs, server logic, and integration with front-end systems. Mid-level developers have a solid understanding of programming languages such as Java, Python, Node.js, or Ruby and are expected to contribute to code reviews, troubleshoot issues, and implement new features under minimal supervision. Their role bridges the gap between junior developers, who need more guidance, and senior developers, who handle architecture and high-level decisions.

What are some typical challenges a mid backend developer might face when integrating new technologies into existing systems?

As a Mid Backend Developer, one common challenge is ensuring that new technologies or frameworks integrate smoothly with legacy systems without disrupting current operations. This often involves understanding both the old and new codebases, data migration, and dealing with compatibility issues. Collaborating closely with frontend developers, DevOps, and QA teams is essential to address potential bottlenecks and maintain performance. Additionally, thorough testing and documentation are crucial to ensure long-term stability and maintainability.

What are the key skills and qualifications needed to thrive as a mid backend developer, and why are they important?

To excel as a Mid Backend Developer, you need strong programming skills in languages such as Java, Python, or Node.js, along with a solid understanding of databases and API design, typically backed by a bachelor’s degree in computer science or related field. Familiarity with tools and systems like Git, RESTful APIs, Docker, and cloud platforms (e.g., AWS, Azure) is usually required. Problem-solving abilities, effective communication, and teamwork are crucial soft skills that set high performers apart. These competencies ensure efficient development, maintainability, and seamless integration of backend services in dynamic technical environments.

What is the difference between Mid Backend Developer vs Backend Developer?

AspectMid Backend DeveloperBackend Developer
Experience LevelMid-level (2-4 years)Entry to Mid-level (0-3 years)
Skills & CertificationsProficiency in server-side languages, databases, APIs; often familiar with cloud servicesBasic to intermediate backend skills, some familiarity with similar technologies
Work EnvironmentCollaborates on complex projects, often in teams with frontend and DevOpsWorks on foundational backend tasks, may be part of smaller teams or solo projects
Industry UsageCommon in tech companies, startups, and enterprise environmentsWidespread across various industries, including tech, e-commerce, and finance

The Mid Backend Developer typically has more experience and handles more complex backend systems compared to a Backend Developer. While both roles require similar foundational skills, the mid-level position involves greater responsibility, problem-solving, and collaboration on larger projects.

What are popular job titles related to Mid Backend Developer jobs in New York?

For Mid Backend Developer jobs in New York, the most frequently searched job titles are:

What job categories do people searching Mid Backend Developer jobs in New York look for?

The top searched job categories for Mid Backend Developer jobs in New York are:

What cities in New York are hiring for Mid Backend Developer jobs?

Cities in New York with the most Mid Backend Developer job openings:

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

Back-End Developer (Python/API)

Software Guidance & Assistance

Manhattan, NY • On-site

Other

Re-posted 16 days ago

Job description

Software Guidance & Assistance, Inc. (SGA) is searching for a mid-level Back-End Developer (Python/API) for a Permanent FTE assignment with one of our premier AI and Financial Technology clients. Must be local to NYC or Miami
The successful candidate will join a small, highly collaborative engineering team responsible for designing and building a cloud-native Portfolio Management System for a hedge fund from the ground up. This is a dedicated role supporting a single client, working directly with the client's engineering leads while collaborating with the firm's engineering team through code reviews and shared development practices. The immediate focus is Bloomberg connectivity and the Python back-end that market data flows through.
This role is ideal for a hands-on engineer who enjoys startup environments, greenfield development, and solving complex backend engineering challenges involving APIs, real-time market data, and scalable cloud architectures. The initial MVP is targeted for delivery by year-end.
This is neither a junior nor senior/principal level role.
Responsibilities
  • Design, develop, and maintain backend services using Python and FastAPI.
  • Build scalable REST APIs supporting cloud-native financial applications.
  • Develop backend services and APIs from the ground up for a greenfield Portfolio Management System.
  • Integrate with Bloomberg and other third-party market data providers to support real-time market data ingestion.
  • Develop real-time backend services utilizing WebSockets and event-driven architectures.
  • Design scalable backend solutions capable of supporting high-volume market data and growing user populations.
  • Implement API throttling, rate limiting, caching, retry logic, and fault-tolerant data ingestion.
  • Design, develop, and optimize PostgreSQL databases and SQL data models; work with Snowflake as the cloud data warehouse where applicable.
  • Optimize application performance, cloud resource utilization, and overall system scalability.
  • Deploy and support applications within Microsoft Azure.
  • Collaborate daily with the client's engineering leads during U.S. East Coast business hours to design, troubleshoot, and deliver new functionality.
  • Coordinate with the firm's engineering team through code reviews, merge requests, and shared development standards.
  • Participate in architecture discussions and contribute to the overall technical direction of the platform.
  • Troubleshoot production issues and continuously improve application reliability, scalability, and performance.

Required Skills
  • 5+ years of backend software development experience.
  • Strong Python programming skills.
  • Experience developing REST APIs using FastAPI or similar Python frameworks.
  • Hands-on Bloomberg API integration experience.
  • Strong understanding of backend application architecture and distributed systems.
  • Experience integrating external APIs.
  • Strong SQL and PostgreSQL experience.
  • Experience designing real-time applications utilizing WebSockets, streaming technologies, or event-driven architectures.
  • Experience implementing API throttling, caching, rate limiting, retry logic, and performance optimization.
  • Cloud development experience utilizing Microsoft Azure, AWS, or Google Cloud Platform.
  • Experience using Git and modern CI/CD practices.
  • Ability to consistently work U.S. East Coast business hours while collaborating live with engineering teams.
  • Excellent analytical, troubleshooting, and communication skills.
  • Ability to work independently within a collaborative, fast-paced startup environment.
  • Bachelor's degree in Computer Science or related technical discipline (or equivalent experience).

Preferred Skills
  • Experience with Snowflake cloud data warehouse.
  • Experience with OpenBB, DataBento, Polygon, DXFeed, Yahoo Finance, or similar financial market data providers.
  • Capital Markets, Trading Systems, Hedge Fund, or Financial Services experience.
  • JavaScript development experience.
  • Docker and containerization.
  • SQLAlchemy or comparable ORM frameworks.
  • Experience building AI-enabled or LLM-powered applications.
  • Startup or early-stage company experience.
  • Experience designing highly scalable, low-latency distributed systems.
  • Experience participating in collaborative code review and peer development environments.

SGA is a technology and resource solutions provider driven to stand out. We are a women-owned business. Our mission: to solve big IT problems with a more personal, boutique approach. Each year, we match consultants like you to more than 1,000 engagements. When we say let's work better together, we mean it. You'll join a diverse team built on these core values: customer service, employee development, and quality and integrity in everything we do. Be yourself, love what you do and find your passion at work. Please find us at .
SGA is an Equal Opportunity Employer and does not discriminate on the basis of Race, Color, Sex, Sexual Orientation, Gender Identity, Religion, National Origin, Disability, Veteran Status, Age, Marital Status, Pregnancy, Genetic Information, or Other Legally Protected Status. We are committed to providing access, equal opportunity, and reasonable accommodation for individuals with disabilities in employment, and our services, programs, and activities. Please visit our company EEO page to request an accommodation or assistance regarding our policy.
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