305 back end developer jobs at 178 companies in Brooklyn, NY

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
1mo
Save
Mark Applied
Hide
Senior Backend Developer
Yerevan or New York City or Israel or Ukraine or Armenia
RemoteFull Time
Commit
Commit: End-to-end software, cloud, and cybersecurity consulting and development.
5+ YOE5+ years backend development (Python, JavaScript), building and operating production SaaS services, designing scalable architectures and data pipelines, driving projects end-to-end, and using AI/LLMs in development workflows.
Python, JavaScript, AI/LLMs, GenAI, Active ASPM
3w
Save
Mark Applied
Hide
Backend Engineer
New York, New York, United States
RemoteFull Time
Themis
Themis: Provides a compliance collaboration platform for financial institutions.
Experience building production applications with Ruby on Rails, PostgreSQL, and Redis; background job and API design experience; strong testing, security, reliability, and communication skills; ability to own backend systems end-to-end.
Ruby on Rails, PostgreSQL, Redis, AWS, GCP, Azure
2mo
Save
Mark Applied
Hide
Backend Engineer
Milan or London or New York City
HybridFull Time
MDOTM
MDOTM: Develops AI software for institutional investment and portfolio management.
2+ YOEMid-level Java/Spring Boot developer with strong SQL/NoSQL, testing, and DevOps collaboration.
Java, Spring Boot, SQL, NoSQL, MySQL, MongoDB, JUnit, Mockito, Testcontainers, ActiveMQ, Kafka, GitLab, GitHub Actions, Jenkins, AWS, EC2, S3, Docker, Kubernetes, ISO 27001
2mo
Save
Mark Applied
Hide
Senior/Staff Backend Engineer
New York or San Francisco
$170k-$220k/yr HybridFull Time
Casap
Casap: Building an AI-native disputes automation and fraud prevention platform with a mission to reduce fraud and streamline workflow for financial institutions.
6+ YOE6+ years in software development; at least 2 years with Go or Java in production; platform team/API/background services; end-to-end feature ownership; strong problem-solving and data structures knowledge; mentoring and technical leadership; strong communication.
Go, Java, CI/CD, microservices, backend development
2d
Save
Mark Applied
Hide
Senior Backend Engineer (Go)
Casablanca or Palma de Mallorca or Europe or London or New York City or San Francisco or Africa
HybridFull Time
Nuitée
Nuitée: Provides API infrastructure for the global travel industry.
Strong hands-on Go experience, history integrating third-party APIs, ownership of end-to-end integrations, and ability to work at high scale and low process.
Go
1w
Save
Mark Applied
Hide
Backend Engineer
San Francisco or New York City or Austin or Seattle
$175k-$300k/yr OnsiteFull Time
Fluidstack
Fluidstack: Provides high-performance cloud GPU infrastructure for AI development.
Experience building production services, observability, API and control-plane design, API-first infrastructure, incident response/pager duty, and familiarity with AI tooling and distributed systems.
LLM APIs, MCP servers, Claude Code, Cursor, Prometheus, Thanos, VictoriaMetrics, Temporal, Cadence, BMC/Redfish, Go, Python, Postgres, Kubernetes
1mo
Save
Mark Applied
Hide
Backend Engineer
Giv'atayim or Tel Aviv or New York City or London or Singapore or São Paulo
HybridFull Time
Personetics
Personetics: AI-powered personalized banking and financial guidance platform.
5+ YOE5+ years backend/platform engineering experience, 5+ years with Java, Kubernetes experience, SQL and relational DB knowledge, Python familiarity, leadership and platform design experience, practical experience with AI dev tools (e.g., Cursor).
Java, Python, Kubernetes, SQL, Cursor, CI/CD, Azure, AWS
3mo
Save
Mark Applied
Hide
Backend Engineer
New York, New York, United States
$160k-$215k/yr OnsiteFull Time
Treeswift
Treeswift: Provides AI-augmented vegetation management and asset monitoring for utilities.
7+ YOE7+ years backend engineering experience; Python/Django or similar; PostgreSQL with geospatial queries; Docker, Kubernetes, AWS; OAuth2/OIDC/JWT; strong cross-functional communication.
Python, Django, PostgreSQL, PostGIS, Kubernetes, AWS, Docker, OpenAPI, Terraform, OpenTofu, CI/CD
1mo
Save
Mark Applied
Hide
Backend Engineer
New York City, New York, United States
$140k-$190k/yr OnsiteFull Time
Sheer Health
Sheer Health: A New York City-based delivering healthcare experiences through technology and data analytics.
3+ YOE3+ years full-stack software engineering; strong NodeJS; Go/Java backend; web tech; browser automation with Playwright/Puppeteer; in-office NYC Mon-Thu; strong problem-solving and communication.
NodeJS, Go, Java, JavaScript, TypeScript, HTML, CSS, Playwright, Puppeteer
2mo
Save
Mark Applied
Hide
Backend Engineer, Platform
New York City, New York, United States
OnsiteFull Time
Equall
Equall: A legal tech delivering infrastructure for private markets and legal state management.
Build and maintain backend infrastructure, CI/CD, security, and observability on Kubernetes using AWS/GCP; focus on multi-tenant SaaS and developer experience.
Kubernetes, Istio, ArgoCD, Depot, PostgreSQL, Redis, Neo4j, Python, AWS, GCP, Datadog
2w
Save
Mark Applied
Hide
Founding Backend Engineer
New York City, New York, United States
OnsiteFull Time
Hera
Hera: Medicare-covered platform providing dedicated senior care coordination.
Experienced backend engineer with strong systems design, cloud and database experience, API and SDK development, security/compliance awareness, and ownership in early-stage environments.
AWS, SQL, APIs, SDKs
4w
Save
Mark Applied
Hide
Lead Backend Engineer (BFF)
Austin or New York City
$225k-$255k/yr HybridFull Time
Bumble
BumbleNASDAQ: BMBL: Operates mobile applications for dating, friendship, and professional networking.
7+ YOE7+ years backend experience with strong Go proficiency; experience with TypeScript, GraphQL/REST APIs, SQL and NoSQL (Redis, DynamoDB); cloud (AWS/GCP), Docker/Kubernetes, testing best practices, system design, and owning features end-to-end.
TypeScript, Go, GraphQL, REST, SQL, NoSQL, Redis, DynamoDB, AWS, GCP, Docker, Kubernetes
1mo
Save
Mark Applied
Hide
Senior Backend Engineer
Madrid or Paris or Seattle or London or Berlin or San Francisco or New York City or Sydney or Mexico City
HybridFull Time
Aircall
Aircall: Cloud-based business phone system and customer communication platform.
6+ YOE6+ years backend development with a typed language (TypeScript preferred), production AWS experience, infrastructure-as-code (CloudFormation or Terraform), security-first mindset, serverless experience, GraphQL a plus, on-call rotation and mentoring experience.
TypeScript, AWS, CloudFormation, Terraform, GraphQL
2w
Save
Mark Applied
Hide
Senior Backend Engineer
Los Angeles or New York City or San Francisco
$170k-$200k/yr HybridFull Time
Tatari
Tatari: A platform for buying and measuring TV advertising campaigns.
6+ YOE6+ years software development (Python required), 4+ years building distributed systems and modern data stacks, deep SQL and data modeling, experience with LLMs and agentic coding tools, strong communication and cross-team collaboration.
Python, Cursor, Copilot, Cody, RDS, Databricks, Spark, Redshift, Kafka, Airflow, dbt, SQL, REST, gRPC, GraphQL
6d
Save
Mark Applied
Hide
Associate Backend Engineer
New York, New York, United States
$95k-$115k/yr HybridFull Time
Eulerity
Eulerity: AI-driven marketing automation for franchise and multi-location brands.
1+ YOE1–3 years backend development experience with at least 1 year in Java, experience using AI agents/LLMs, familiarity integrating third-party APIs, strong communication and problem-solving; based in NYC tri-state and available full-time.
Java, GitHub Copilot, Anthropic, Google, OpenAI, Claude, Cursor, LLMs
4w
Save
Mark Applied
Hide
SRE / Backend Engineer
New York City, New York, United States
$160k-$220k/yr HybridFull Time
Nabla
Nabla: AI assistant for clinical documentation and healthcare workflow automation
Senior-level SRE or back-end experience with cloud infrastructure, on-call processes, IaC (Terraform), and strong software engineering; GCP preferred; excellent communication.
GCP, AWS, Azure, Terraform, Kubernetes, Cloud Run, GKE, Pub/Sub, PostgreSQL
1mo
Save
Mark Applied
Hide
Senior Backend Developer
New York, New York, United States
HybridFull Time
Galaxy Digital
Galaxy DigitalToronto Stock Exchange: GLXY: Financial services and infrastructure for the digital asset economy.
7+ YOE7+ years software engineering experience; strong Golang and distributed systems skills; experience with Ethereum/blockchain, cloud-native infrastructure (AWS, Kubernetes, Helm, Flux), testing, and working in remote/asynchronous teams.
Golang, Ethereum, AWS, Kubernetes, Helm, Flux, GitOps, Claude Code, Model Context Protocol (MCP), Rust, Solidity, Headspace
1mo
Save
Mark Applied
Hide
Backend Engineer
New York, New York, United States
$110k-$140k/yr HybridFull Time
Bayview Asset Management
Bayview Asset Management: Investment management firm specializing in credit and mortgage assets.
Bachelor's degree in Computer Science or equivalent experience; strong backend development skills in .NET and Python; experience with databases and CI/CD.
NET (C#, EF Core, ASP.NET Core), Python (FastAPI, Pydantic, SQLAlchemy), SQL Server, Snowflake, Redis, Bitbucket, Jenkins, Docker, Kubernetes, VS Code
2w
Save
Mark Applied
Hide
Java Backend Developer
New York, New York, United States
$100k-$130k/yr HybridFull Time, Contract
Talan
Talan: Provides international consulting and technology transformation services.
5+ YOEBachelor's degree required; 5+ years Java development experience with Java 21; backend and REST API development; Linux, multithreading, distributed systems, Git, and strong debugging skills.
Java 21, AutoSys, Git, Python, KDB, Linux, REST
2mo
Save
Mark Applied
Hide
Senior Backend Engineer - Payroll - EST
New York City or California or Colorado or Connecticut or District of Columbia or Florida or Georgia or Illinois or Indiana or Kansas or Massachusetts or Maryland or Minnesota or North Carolina or New Hampshire or New Jersey or Nevada or New York or Ohio or Oklahoma or Oregon or Pennsylvania or Rhode Island or South Carolina or Tennessee or Texas or Utah or Virginia or Washington
$170k-$220k/yr HybridFull Time
HiBob
HiBob: Cloud-based human resources management platform for mid-sized businesses.
6+ YOE6+ years backend software engineering; experience with Kotlin, Java, or Scala; relational DBs (PostgreSQL/MySQL); AWS; testing and TDD; owning features end-to-end and collaborating with product.
Kotlin, Java, Scala, PostgreSQL, MySQL, AWS