26 production development systems engineer jobs at 22 companies in Connecticut
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Senior Software Engineer, Ontology & Reasoning Systems (819)
Connecticut or New York
$238k-$267k/yrOnsiteFull Time
Protegrity: Provides data-centric security and tokenization software for enterprises.
5+ YOE5+ years building backend systems; strong foundation in logic, discrete math and graph theory; experience with rule-based reasoning, knowledge graphs, LLM-powered pipelines, and production-grade engineering.
United States or Canada or California or Washington or New York or New Jersey or Connecticut
$195k-$280k/yrRemoteFull Time
AffirmNasdaq: AFRM: Financial platform providing installment loans for consumer purchases.
Experience building, deploying, and maintaining production AI systems; strong software engineering and systems design skills; comfortable with Python, CI/CD, containerization, and production operations; experience integrating with Workday, Snowflake, and data governance.
San Francisco or Arizona or California or Colorado or Connecticut or District of Columbia or Florida or Georgia or Idaho or Illinois or Indiana or Iowa or Maryland or Massachusetts or Michigan or Minnesota or Missouri or New Jersey or New Mexico or New York or North Carolina or Ohio or Oklahoma or Oregon or Pennsylvania or Puerto Rico or Rhode Island or Tennessee or Texas or Utah or Vermont or Virginia or Washington or West Virginia or Wisconsin or Wyoming or Brazil or Canada or Colombia or France or Germany or Ghana or India or Indonesia or Italy or Kenya or Mexico or Morocco or Netherlands or Poland or Singapore or South Africa or Spain or Switzerland or United Kingdom
$95k-$149k/yrRemoteFull Time
Wikimedia Foundation: Operates Wikipedia and provides global free knowledge infrastructure.
2+ YOE2+ years backend/platform engineering on distributed systems, proficiency in Java or C++, experience with production-grade services, observability, and data processing technologies.
BitOoda: Providing digital asset financial services and infrastructure solutions.
Hands-on software engineering across the stack, experience deploying AI/LLM features, ability to own systems end-to-end, communicate with stakeholders, and ship reliable production software.
Arkansas or California or Colorado or Connecticut or Florida or Illinois or Louisiana or Massachusetts or Michigan or Minnesota or New Jersey or New York or North Carolina or Ohio or Oregon or Pennsylvania or Tennessee or Texas or Virginia or Washington or Wisconsin
$163k-$185k/yrRemoteFull Time
EasyLlama: Mobile-first platform for employee compliance and harassment prevention training.
10+ YOE10+ years software engineering experience; expert Ruby on Rails and React; deep Kubernetes, Docker, AWS, CI/CD, distributed systems, API design, and production reliability experience.
Catalyst Brands: Operates a portfolio of retail brands including JCPenney.
5+ YOE5+ years WMS application development experience (PKMS or equivalent), BA/BS or equivalent, strong SQL/Java/XML/JSON skills, AS/400 knowledge, experience supporting production systems and collaborating on WMS projects.
Microsoft SQL Server, Java, XML, JSON, DTS/SSIS, SQL, Stored Procedures, Microsoft Access, RPGLE, CL, DDS, Python, Visual Basic, C#, AS/400, PKMS, SDI Material Sorter HMIs, Loftware Nicelabel, Cybra Mark Magic
Voya FinancialNYSE: VOYA: Provides retirement, investment, and insurance products and services.
Bachelor's in CS/Engineering/Math required (advanced degree preferred). Significant experience delivering production AI/ML systems, proficiency with Python/TypeScript/Rust, LLM and MLOps knowledge, model lifecycle and MLOps practices, and leadership of technical initiatives.
Founding Software Engineer - AI & Operations (Full-Stack)
Wallingford, Connecticut, United States
OnsiteFull Time
United Concrete Products: Manufacturer of precast and prestressed concrete infrastructure products.
3+ YOE3+ years engineering experience with ownership of a production system; strong full‑stack fundamentals, SQL, LLM API production integrations, OCR/document extraction, and self-directed problem solving.
OpenAI, Anthropic, OCR, MaintainX, Claude Code, Copilot, SQL
Senior Software Engineer – Platform & Agentic AI Engineering
Hartford or Charlotte or Columbus or Chicago
$128k-$191k/yrHybridFull Time
The HartfordNYSE: HIG: Provides business and personal insurance, group benefits, and investments.
6+ YOE6+ years software engineering with 2+ years GenAI/LLM multi-agent experience; hands-on with Agentic protocols (ADK,MCP), AlloyDB/Postgres, Vertex AI, Python/Typescript, Terraform, and production LangChain/LangGraph systems.
United States or Colorado or Hawaii or Illinois or Maryland or Massachusetts or Minnesota or New Jersey or New York or Vermont or District of Columbia or Washington or California or Connecticut or Pennsylvania or San Francisco
$139k-$204k/yrRemoteFull Time
TwilioNYSE: TWLO: Cloud communications platform for programmable messaging, voice, and email.
4+ YOE4+ years building and operating resilient backend services; production experience with Go/Java/Python, Terraform, AWS and Microsoft Azure; strong distributed systems and observability skills.
Go, Java, Python, AWS, EC2, S3, Aurora, DynamoDB, Microsoft Azure, Microsoft Azure Virtual Machines, Microsoft Blob Storage, Microsoft Azure SQL, Microsoft Cosmos DB, Terraform, Kafka, Docker, Kubernetes, OpenTelemetry, Claude Code, MTA
United States or New York City or Palm Beach or Los Angeles or Miami or Greenwich or Westchester County or The Hamptons or San Francisco or Manhattan
$190k-$250k/yrRemoteFull Time
Atria Health Institute: Membership-based concierge practice providing preventive, precision-based medical care.
4+ YOE4+ years building and operating LLM-powered production ML systems, strong Python, backend framework experience (FastAPI/Flask), LLM orchestration and retrieval design, Snowflake/dbt/Dagster/Airflow familiarity, evaluation systems, HIPAA/PHI knowledge, and strong written communication.
Menlo Park or Boston or Indianapolis or Durham or Washington or Missouri or Rhode Island or Maine or New York or Florida or North Carolina or Massachusetts or Illinois or Tennessee or Pennsylvania or Mississippi or New Jersey or Maryland or Michigan or Vermont or Minnesota or West Virginia or Louisiana or California or Ohio or Connecticut or South Carolina or Georgia or Delaware or Wisconsin or Virginia or Kentucky or Indiana
$194k-$341k/yrRemoteFull Time
Genesys: Provides AI-powered cloud platform for customer and employee experiences.
8+ YOE8+ years building production AI/ML systems with Python, LLMs, MLOps and cloud (preferably AWS); expertise in time-series forecasting, predictive modeling, and agentic/Generative AI; strong software engineering and CI/CD experience.
Mountain View or Albany or Arlington or Atlanta or Austin or Beaverton or Bentonville or Boston or Carmel or Charlotte or Chicago or Cincinnati or Cleveland or Columbus or Culver City or Denver or Des Moines or Detroit or Hartford or Houston or Irving or Kirkland or Miami or Milwaukee or Minneapolis or Morristown or Nashville or New York City or Oklahoma City or Overland Park or Philadelphia or Pittsburgh or Raleigh or Redmond or Sacramento or San Diego or San Francisco or Scottsdale or Seattle or St. Louis or St. Petersburg or Walnut Creek
$123k-$338k/yrOnsiteFull Time
AccentureNYSE: ACN: Global professional services firm providing consulting and technology solutions.
5+ YOEBachelor's degree in computer science, computer engineering, or related field; 5+ years Python or Node.js/TypeScript and AI/ML systems experience; research-to-production expertise preferred.
Python, Node.js, TypeScript, FastAPI, asyncio, Kubernetes, OpenTelemetry, Microsoft Excel
Principal Software Engineer (Security & Policy Platform) (Remote)
San Jose or North Dakota or Montana or Maine or Ohio or Nebraska or Louisiana or Texas or Nevada or Hawaii or Georgia or Mississippi or Connecticut or Colorado or Wyoming or Wisconsin or West Virginia or Maryland or California or Vermont or New York or New Jersey or Arkansas or South Dakota or Pennsylvania or Michigan or Indiana or Idaho or Arizona or New Mexico or New Hampshire or Kentucky or Alabama or South Carolina or Illinois or Missouri or Massachusetts or Iowa or Tennessee or North Carolina or Minnesota or Kansas or Alaska or Rhode Island or Delaware or Washington or Virginia or Utah or Oregon or Florida or Oklahoma
$251k-$363k/yrRemoteFull Time
CiscoNASDAQ: CSCO: Develops and sells networking hardware and cybersecurity software.
12+ YOEBachelor's in CS/EE or related and 12+ years designing large-scale distributed systems; experience with cloud/hybrid, security and privacy for platform systems; production coding in Go/Rust/C++; strong communication.
United States or Austin or Tampa or California or Colorado or Connecticut or Florida or Georgia or Illinois or Kansas or Maine or Massachusetts or New Jersey or North Carolina or New York or Oregon or Tennessee or Texas or Virginia or Washington
$150k-$200k/yrHybridFull Time
NinjaOne: Unified IT platform for automated endpoint management and security.
10+ YOEBachelor's degree or equivalent experience, 10+ years software development, 4+ years scalable systems, strong Java, REST/GraphQL, SQL, testing, React, TypeScript/JavaScript, HTML/CSS, and debugging skills.
The Walt Disney CompanyNYSE: DIS: Produces movies, operates theme parks, and provides streaming services.
3+ YOEBachelor's degree or equivalent, 3+ years building backend systems/APIs in Java (Spring Boot preferred). Experience with AWS, monitoring/observability, CI/CD, Git, team on-call rotations, and scalable distributed systems.
Java, Spring Boot, AWS, ECS, Lambda, CloudFront, S3, DataDog, New Relic, CloudWatch, CI/CD, Git, TeamCity, Jenkins, Cursor, Claude Code, Angular, HAProxy, Varnish, CDN, REST APIs
Mountain View or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York City or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Seattle or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
OnsiteFull Time
AccentureNYSE: ACN: Global provider of management consulting and technology services.
5+ YOEBachelor's degree or equivalent experience, 5+ years with Python and/or Node.js/TypeScript, and 5+ years with AI/ML systems. Research-to-production experience preferred; Kubernetes, databases, tracing, and async Python are bonuses.
Python, Node.js, TypeScript, FastAPI, asyncio, Kubernetes, OpenTelemetry, CI
Hartford or Indianapolis or Phoenix or Raleigh or Richardson
OnsiteFull Time
InfosysNYSE: INFY: Global provider of digital services, consulting, and technology solutions.
Bachelor's degree or equivalent experience; experience with PySpark, AWS Redshift, AWS Glue and Gen AI; ability to work across SDLC, support production systems; US work authorization required; relocation/travel possible.
Research and Portfolio Management Engineering - Vice President
Greenwich, Connecticut, United States
$160k-$190k/yrOnsiteFull Time
AQR Capital Management: Quantitative investment firm managing traditional and alternative strategies.
7+ YOEBachelor's or master's degree in a technical field and 7+ years of software engineering experience. Requires Python, Linux, SQL, cloud-native applications, large-scale data pipelines, and production AI/ML systems.
Amazon Web Services (AWS), Python, C++, Linux, SQL