HiringCafe
Join our community

1,055 sr api developer jobs at 513 companies in Stamford, CT

2w
Save
Mark Applied
Hide
Sr Java API Developer - New York
New York, New York, United States
$40k-$140k/yr OnsiteFull Time
Photon: A technology employer building secure, scalable, and maintainable backend and API solutions.
5+ YOE5+ years Java backend experience, proficiency with Java 11/17, Spring ecosystem, RESTful APIs, relational and NoSQL databases, API security, CI/CD, and testing frameworks.
Java 11, Java 17, Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Hibernate, REST, OpenAPI/Swagger, JSON, GraphQL, PostgreSQL, MySQL, Oracle, MongoDB, Cassandra, Apache Kafka, RabbitMQ, Maven, Gradle, JUnit, Mockito, REST Assured, Jenkins, GitHub Actions, GitLab CI, Microsoft Azure DevOps, Docker, Kubernetes, Git, Redis, Hazelcast, Prometheus, Grafana, ELK Stack, Splunk
Job PostingView all
2mo
Save
Mark Applied
Hide
Sr. Software Engineer (Hybrid)
Hartford or Charlotte or Short Hills
$123k-$157k/yr HybridFull Time
Selective Insurance
Selective InsuranceNASDAQ: SIGI: Provider of commercial and personal property and casualty insurance.
5+ YOE5+ years of experience designing and developing complex applications; Bachelor's preferred in CS/Engineering; strong .NET/C#, API, SQL; cloud, Azure, DevOps, and leadership skills.
C#, .NET, API development, SQL, Azure, Container Apps, API Management, App Gateway, Key Vault, App Services, Logic Apps, SQL MI, Infrastructure-as-Code, Bicep, ARM, Terraform, Angular, SAFe
Job PostingView all
1mo
Save
Mark Applied
Hide
Software Engineer, Developer API
New York City or San Francisco or United States or Canada or United Kingdom
$168k-$330k/yr HybridFull Time
Ramp
Ramp: Financial operations platform for corporate cards and spend management.
5+ YOE5+ years backend engineering, experience building APIs/platforms, hands-on with Python, Temporal, and Postgres, familiarity with AI coding agents, strong ownership and developer-experience focus.
Python, Temporal, Postgres
Job PostingView all
2mo
Save
Mark Applied
Hide
Senior Software Engineer | API
New York, New York, United States
$140k-$220k/yr HybridFull Time
DeepL
DeepL: AI-powered language translation and writing assistance platform.
Backend/API engineering focus with REST, distributed systems, and developer experience.
Job PostingView all
2d
Save
Mark Applied
Hide
Member of Technical Staff (Software Engineer, Backend API)
London or Serbia or Berlin or New York City
$200k-$350k/yr OnsiteFull Time
Perplexity
Perplexity: AI-powered search engine providing conversational answers with citations.
Experience designing and operating distributed high-load systems, cloud infrastructure, Kubernetes, CI/CD, and either API product engineering or platform operations; strong autonomy and product sense required.
Go, Rust, Python, MCP, Kubernetes, CI/CD
Job PostingView all
1w
Save
Mark Applied
Hide
Python API Engineer
Fort Mill or Charlotte or New York City or San Diego or Austin
$106k-$177k/yr OnsiteFull Time
LPL Financial
LPL FinancialNASDAQ: LPLA: Provides independent financial advisory and wealth management services.
7+ YOE7+ years software engineering experience with Python, REST APIs, AWS (Lambda, API Gateway, CloudWatch, IAM, S3), Terraform, CI/CD (Jenkins/GitHub Actions), and production support; BS in CS or related (MS preferred).
Python, AWS Lambda, Amazon API Gateway, CloudWatch, IAM, S3, Terraform, Jenkins, GitHub Actions, SQL, AWS SAM, Serverless Framework, EventBridge, SNS, SQS, Dynatrace, Datadog, OpenTelemetry, Git
Job PostingView all
3w
Save
Mark Applied
Hide
API Developer/Data Engineer Managing Consultant-Fraud/AI
McLean or New York City or Arlington or United States
$130k-$216k/yr HybridFull Time
Guidehouse
Guidehouse: Provides management and technology consulting services to diverse organizations.
5+ YOEUS citizen able to obtain Public Trust,5+ years in data engineering/integration, proficiency in Python, Java/JS, .NET (C#), RESTful APIs, XML, SQL/SQL Server, GCP, data formats (JSON, Parquet), and experience leading technical teams.
Python, Java, JS, C#, .NET, RESTful API, XML, SQL Server, SQL, CSV, TXT, JSON, Parquet, GCP, Apigee, Kong, Azure API Management, AWS API Gateway, LexisNexis, Oracle Mantas, Actimize, Fircosoft, Oracle Mantas, World-Check, Dow Jones, Chainalysis, Elliptic, TRM Labs
Job PostingView all
1w
Save
Mark Applied
Hide
Full Stack Developer (.NET API) - Senior Software Engineer
Stamford, Connecticut, United States
OnsiteFull Time
Information Services Group
Information Services GroupNASDAQ: III: Provides technology research and advisory services for digital transformation.
6+ YOEBachelor's in computer science or related field, 6+ years full-stack experience with .NET Core API, Angular and SQL Server, strong C#/Web API and front-end (HTML/CSS/JavaScript) skills, REST API experience, communication and leadership abilities.
Angular, .NET Core, SQL Server, C#, Web API, HTML, CSS, JavaScript, Microsoft Azure, Git
Job PostingView all
2mo
Save
Mark Applied
Hide
Senior Software Engineer - MDM / RDM & API Development
Newark, New Jersey, United States
$104k-$172k/yr HybridFull Time
Prudential Financial
Prudential FinancialNYSE: PRU: Provides insurance, investment management, and retirement services globally.
Senior software engineer with experience in MDM/RDM, API development, Python/Spark/Node.js, and Agile practices.
Python, Spark, Node.js, NoSQL, Relational Databases, SQS, Kinesis, REST, JSON, SOAP, XML, JDBC, MySQL, Git, Jenkins, AWS, CloudWatch, CodeDeploy
Job PostingView all
1w
Save
Mark Applied
Hide
Sr. Engineer, Software Development
New York City or Birmingham or Miami or Tampa or Blue Ash or Cincinnati or Los Angeles or San Francisco
$121k-$173k/yr HybridFull Time
Green Dot
Green DotNYSE: GDOT: Provides mobile banking and payment solutions to consumers and businesses.
5+ YOE5+ years software engineering experience with secure API/microservice development, cloud (Azure) and observability; 1+ year technical leadership; fintech or BaaS experience preferred.
C#, .NET, SQL, APIM, Azure SQL, Cosmos DB, Key Vault, Service Bus, Event Hubs, Datadog, Grafana, Git, OAuth2, Open API
Job PostingView all
1mo
Save
Mark Applied
Hide
Full Stack Software Engineer, API Experience
New York City, New York, United States
$293k-$385k/yr OnsiteFull Time
OpenAI
OpenAI: Develops artificial intelligence models and generative AI software services.
5+ YOE5+ years engineering experience; strong TypeScript and React; proficiency in one or more backend languages (Python, Go, Rust, TypeScript); experience building production APIs, services, SDKs, and developer tooling.
TypeScript, React, Python, Go, Rust, SDKs
Job PostingView all
1mo
Save
Mark Applied
Hide
Sr. Software Engineer
Miami or Shelton
OnsiteFull Time
Subway
Subway: Operates a global chain of franchised quick-service sandwich restaurants.
5+ YOEBachelor's or equivalent experience, 5+ years production software development, strong with Node.js/TypeScript/Java/C#, serverless AWS (Lambda, API Gateway, DynamoDB, SQS/SNS), REST/GraphQL APIs, CI/CD and Git workflows, Terraform/IaC, and daily use of AI-assisted development tools (GitHub Copilot, Claude).
AWS Lambda, API Gateway, DynamoDB, SQS, SNS, Node.js, TypeScript, JavaScript, Java, C#, Terraform, GitHub, Azure DevOps, Dynatrace, OpenAPI, Swagger, GitHub Copilot, Claude, Git, GitHub Actions, Datadog, CloudWatch, Akamai, CloudFront, OAuth 2.0, OpenID Connect, AWS Cognito, React Native
Job PostingView all
1w
Save
Mark Applied
Hide
Sr Software Engineer
New York, New York, United States
$149k-$199k/yr HybridFull Time
The Walt Disney Company
The Walt Disney CompanyNYSE: DIS: Produces movies, operates theme parks, and provides streaming services.
5+ YOE5+ years software development experience with functional Scala, AWS and Kubernetes; strong API, distributed systems, observability, and CI/CD skills.
Scala, ZIO, Cats, Cats Effect, RX Java, Kotlin, Clojure, Lisp, Haskell, OCaml, Elm, Typescript, AWS, Cloudformation, Terraform, Kubernetes, Docker, Istio, Spinnaker, Datadog, Git, Jira
Job PostingView all
1mo
Save
Mark Applied
Hide
Principal Identity and API Architect
London or New York
€90k-€130k/yr OnsiteFull Time
TripleLift
TripleLift: Programmatic advertising platform for high-quality digital ad experiences.
8+ YOE8+ years software engineering/platform architecture experience (4+ years focused on identity/IAM/API security). Hands-on Auth0, OpenFGA/ReBAC, OAuth2/OIDC/SAML, AWS identity services, API gateway patterns, and backend development in Go/Java/Python.
Auth0, Okta, OpenFGA, SpiceDB, Ory Keto, Traefik, Kong, AWS API Gateway, IAM, Cognito, Secrets Manager, KMS, STS, Lambda, OAuth 2.0, OpenID Connect (OIDC), SAML 2.0, JWT, JWKS, Go, Java, Python
Job PostingView all
1mo
Save
Mark Applied
Hide
Sr Software Engineer
New York, New York, United States
$400k-$500k/yr OnsiteFull Time
Newmark
NewmarkNASDAQ: NMRK: Commercial real estate brokerage and property management services.
10+ YOE10+ years modern C++ low-latency development, expertise in cache coherency, memory management, multithreading and lock-free queues, TCP/UDP and latency measurement, API/protocol design; Git/GitLab and Wireshark proficiency; Solarflare and FIX experience a plus.
C++, Git, GitLab, Wireshark, Solarflare, TCP, UDP, FIX
Job PostingView all
1w
Save
Mark Applied
Hide
Director, eCommerce Syndicated API Platforms
Stamford or St. Louis or Greenwood Village
HybridFull Time
Charter Communications
Charter CommunicationsNASDAQ: CHTR: A leading broadband connectivity and telecommunications services provider.
10+ YOE3+ MgmtBachelor's degree or equivalent,10+ years in technical program delivery or API platforms,9+ years partner enablement,API strategy and integrations,leadership in launch planning and stakeholder alignment,strong API and developer experience skills.
REST APIs, API gateway, cloud-based platforms
Job PostingView all
4d
Save
Mark Applied
Hide
Sr AI Engineer
New York City, New York, United States
$150k-$215k/yr OnsiteFull Time
Morgan Stanley
Morgan StanleyNYSE: MS: Provides global investment banking, wealth management, and advisory services.
6+ YOE6+ years building and operationalizing GenAI solutions; mastery of agent orchestration frameworks; expert Python; LLM APIs, prompt engineering, vector databases, RAG, APIs, Docker, and Kubernetes.
LangChain, LangGraph, CrewAI, Microsoft AutoGen, OpenAI, Anthropic, AWS Bedrock, Pinecone, Weaviate, Python, FastAPI, Node.js, Go, Docker, Kubernetes
Job PostingView all
4w
Save
Mark Applied
Hide
Senior Software Engineer - API Platform & Client Tooling
Bellevue or Livingston or New York City or San Francisco or Sunnyvale
$153k-$204k/yr OnsiteFull Time
CoreWeave
CoreWeaveNASDAQ: CRWV: Cloud platform providing GPU-accelerated infrastructure for AI workloads.
Production Go experience, API design and versioning, client tooling/SDK/CLI or provider work, code-generation or compiler/tooling experience preferred, cross-team collaboration and mentorship.
Go, gRPC, protocol buffers, Buf, ConnectRPC, Terraform Plugin Framework, Cobra, CWIC
Job PostingView all
4d
Save
Mark Applied
Hide
Sr AI Engineer
New York City, New York, United States
$150k-$215k/yr OnsiteFull Time
Morgan Stanley
Morgan StanleyNYSE: MS: Global financial services firm providing investment and wealth management.
6+ YOE6+ years building and operationalizing GenAI solutions; mastery of agent orchestration frameworks; expert Python; LLM APIs, prompt engineering, vector databases, RAG, APIs, Docker, Kubernetes, and strong communication.
LangChain, LangGraph, CrewAI, Microsoft AutoGen, OpenAI, Anthropic, AWS Bedrock, Pinecone, Weaviate, Python, FastAPI, Node.js, Go, Docker, Kubernetes
Job PostingView all
1mo
Save
Mark Applied
Hide
SR UI Developer
New York City, New York, United States
OnsiteFull Time
Virtusa
Virtusa: Global provider of digital engineering and IT outsourcing services.
Experience building type-safe React components with TypeScript; proficiency in HTML5, Tailwind CSS, Next.js or Remix, Node.js APIs, responsive design, WCAG accessibility, performance optimization, and automated testing.
React, TypeScript, HTML5, Tailwind CSS, Next.js, Remix, Node.js, WCAG
Job PostingView all

Explore Jobs

Expand Your Job Search