130 mid level software engineer jobs at 84 companies in Connecticut
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HVAC Commercial Mechanical Engineer (Mid-Level)
West Hartford or East Granby
OnsiteFull Time
USA Mechanical & Energy Services: Provides commercial HVAC, plumbing, and building automation services.
3+ YOEBachelor's in Mechanical Engineering, 3+ years HVAC engineering experience, proficiency with AutoCAD/Revit and HVAC load calculation software, knowledge of thermal systems and codes, strong communication and analytical skills.
Illinois or Kentucky or Kansas or Idaho or Washington or Michigan or Florida or California or Texas or Oklahoma or Tennessee or North Carolina or Minnesota or Massachusetts or Indiana or Georgia or Arizona or Missouri or Alabama or Connecticut or District of Columbia or South Carolina or Oregon
$79k-$119k/yrHybridFull Time
Relativity: AI-powered platform for legal discovery and data intelligence.
Backend software engineering role; experience with C# or Python; strong distributed systems knowledge; cloud experience preferred.
Alabama or Arizona or California or Colorado or Connecticut or Florida or Georgia or Idaho or Illinois or Indiana or Iowa or Kansas or Louisiana or Maryland or Massachusetts or Michigan or Minnesota or Missouri or Mississippi or North Carolina or Nebraska or New Jersey or Nevada or New York or Ohio or Oklahoma or Oregon or Pennsylvania or South Carolina or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin or Wyoming
$90k-$135k/yrRemoteFull Time
Storable: Provides technology platform for storage and specialty real estate operators.
3+ YOE3+ years software engineering experience, production WordPress expertise, PHP/MySQL/modern JavaScript, experience using AI-assisted development tools, strong engineering fundamentals and communication.
Manchester or Canada or United Kingdom or Alabama or Arizona or California or Colorado or Connecticut or District of Columbia or Florida or Georgia or Iowa or Idaho or Illinois or Indiana or Kansas or Massachusetts or Maryland or Maine or Michigan or Minnesota or Missouri or North Carolina or Nebraska or New Hampshire or New Jersey or New Mexico or New York or Ohio or Oklahoma or Oregon or Pennsylvania or South Carolina or Tennessee or Texas or Utah or Virginia or Vermont or Washington or Wisconsin or West Virginia
£50k-£80k/yrHybridFull Time
Mark43: Provides cloud-native records and dispatch software for first responders.
3+ YOE3+ years backend software engineering with distributed systems and integrations; experience designing/operating APIs, webhooks or messaging systems; familiarity with Java, TypeScript/JavaScript, REST, SQL/MySQL; strong communication skills; must be authorized to work in the hiring country.
Java, TypeScript, JavaScript, REST, SQL, MySQL, CI/CD, Claude Code Enterprise
NBCUniversalNASDAQ: CMCSA: Produces and distributes entertainment content and theme park experiences.
3+ YOEBachelor's in CS/IT required; 3+ years software development with Go and/or Python; experience with cloud deployment (AWS, GCP), Kubernetes/Docker, CI/CD, test automation, SRE practices, and strong communication skills.
Go, Python, AWS, GCP, Kubernetes, Docker, CI/CD, test automation, Site Reliability Engineering (SRE), scrum, kanban, CDN, AI tooling
Utah or Wisconsin or Alaska or West Virginia or District of Columbia or Washington or Virginia or Vermont or Texas or Tennessee or South Dakota or South Carolina or Rhode Island or Puerto Rico or Pennsylvania or Oregon or Oklahoma or Ohio or North Dakota or North Carolina or New York or New Mexico or New Jersey or New Hampshire or Nevada or Nebraska or Montana or Mississippi or Minnesota or Michigan or Massachusetts or Maryland or Maine or Louisiana or Kansas or Iowa or Indiana or Illinois or Idaho or Georgia or Florida or Delaware or Connecticut or Colorado or California or Arkansas or Arizona or Alabama or Virgin Islands, U.S. or Missouri or Wyoming
$80k-$90k/yrRemoteFull Time
Harris Computer: Provides mission-critical vertical market software and service solutions.
3+ YOEBachelor\u0002s or equivalent experience, 3+ years software development, strong Java (11/17+), Spring/Spring Boot, REST API, databases, search tech, React/Next.js, and familiarity with AI-assisted development.
Java, JVM, Spring, Spring Boot, RESTful API, PostgreSQL, MySQL, MongoDB, Elasticsearch, React, Next.js, Material UI, GitHub Copilot, Claude, Cursor, ChatGPT
The Walt Disney CompanyNYSE: DIS: Produces movies, operates theme parks, and provides streaming services.
3+ YOE3+ years in web development or software engineering; strong frontend skills; JavaScript/JS frameworks; good communicator; multitasker; quick learner.
United States or California or Connecticut or Florida or Illinois or Kentucky or Maryland or Massachusetts or Michigan or Minnesota or North Carolina or New York or Ohio or Pennsylvania or Rhode Island or South Carolina or Tennessee or Texas or Virginia or Washington or Richmond
RemoteFull Time
Tactiq: Software for managing direct store delivery and retail operations.
4+ YOEBachelor's/Master's or equivalent experience, 4+ years software engineering, production delivery ownership, cloud (AWS/Google Cloud/Microsoft Azure), Python/Java/GoLang, relational databases, Docker, Kubernetes, automated testing, Git; must reside in specified US states and be authorized to work without sponsorship.
AWS, Google Cloud, Microsoft Azure, Python, Java, GoLang, Docker, Kubernetes, Git
California or Colorado or Connecticut or Florida or Illinois or New York or North Carolina or Oregon or Texas or Virginia or Washington
$115k-$150k/yrRemoteFull Time
Very Good Security: Provides payment tokenization and data security infrastructure for businesses.
3+ YOEMinimum 3 years as a Software Engineer; proficient in Python, Java, Go; cloud (AWS, EKS, S3, Lambda); Kubernetes; Terraform; Kafka, Airflow; strong communication and collaboration.
TravelersNYSE: TRV: Provide property and casualty insurance for individuals and businesses.
3+ YOEThree years of programming/development experience; TypeScript, Node, .NET; delivery, domain knowledge, problem solving, communication, leadership; Bachelor's degree in related field; 2 additional years of software engineering experience.
The HartfordNYSE: HIG: Provides business and personal insurance, group benefits, and investments.
4+ YOEUS work authorization required; Bachelor’s in CS/Math/Engineering; associate-level AWS or GCP certification; 3–4+ years application and Java/J2EE experience; Spring Boot, REST/SOAP, Oracle, CI/CD, and Angular familiarity.
San Francisco or Waterloo or New York City or Connecticut or New Jersey or Seattle or Los Angeles or San Diego
$149k-$299k/yrHybridFull Time
TextNow: Provides free, ad-supported mobile calling and texting services.
4+ YOE4+ years software engineering experience; strong CS fundamentals; experience with distributed systems, databases, APIs, and cloud infrastructure; proficiency in one or more modern programming languages; strong communication and collaboration skills.
Texas or California or Colorado or Connecticut or Rhode Island or Nevada or New York City or Ithaca or Westchester County or Washington or United States
$80k-$180k/yrRemoteFull Time
The Home DepotNYSE: HD: Retailer of home improvement products, building materials, and tools.
3+ YOE3+ years software experience, bachelor’s degree or equivalent, proficiency with HTML/CSS, JavaScript/TypeScript, Java preferred, databases, cloud and CI/CD, testing and debugging, version control, and ability to work legally in the U.S.
Brookfield or Alaska or California or Connecticut or Illinois or Maryland or Massachusetts or New Jersey or New York City or Pennsylvania or Virginia or Washington or District of Columbia
$79k-$199k/yrRemoteFull Time
Milliman: Global provider of actuarial and risk management consulting services.
4+ YOE4+ years software engineering experience; strong C#, .NET 8, React, SQL skills; AWS/cloud experience; Agile/Scrum familiarity; full SDLC and strong design, debugging, and collaboration skills.
Delan Associates: Provides engineering and professional services to government agencies.
Experience developing integrations with AutoCAD and Zuken e3, SQL/SQL Server, Power BI (Power Query,DAX), Microsoft Power Platform, .NET and migrating Access/VBA to SQL; strong collaboration and software validation knowledge.
AutoCAD, Zuken e3, SQL, Power BI, Power BI Desktop, Power Query, DAX, SQL Server, Oracle DB, JSON, Microsoft Excel, Microsoft Power Platform, Power Automate, Power Apps, Excel VBA, .NET, Microsoft Access
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
Pennsylvania or Maryland or Washington or North Carolina or Louisiana or Kentucky or Kansas or Indiana or Illinois or Georgia or Iowa or Florida or Colorado or California or Delaware or Connecticut or Arkansas or Arizona or Alabama or Alaska or Nevada or Vermont or Tennessee or Idaho or Oklahoma or Hawaii or Mississippi or Utah or New Hampshire or New Mexico or Wyoming or North Dakota or South Dakota or Rhode Island or West Virginia or Montana or Texas or District of Columbia or Ohio or New Jersey or Oregon or South Carolina or Missouri or Virginia or Massachusetts or Nebraska or Minnesota or Michigan or Wisconsin or New York or Maine
$86k-$139k/yrRemoteFull Time
Highmark Health: Provides health insurance and integrated medical care services.
3+ YOECertified Pega Senior System Architect (CSSA) v8.x+, Bachelor's in CS or related, 3+ years in modern programming and system design, REST/web services knowledge, agile experience.
Interactive BrokersNASDAQ: IBKR: Automated global electronic brokerage and trading services provider.
Experienced full-stack Java developer with Vert.x, Vue.js, Oracle SQL and RESTful API experience; familiarity with front-end technologies, CI/CD, and financial services systems.
United States or California or Colorado or Connecticut or Hawaii or Illinois or Maryland or Massachusetts or Minnesota or New Jersey or New York or Vermont or Washington or Pennsylvania or District of Columbia
$139k-$204k/yrRemoteFull Time
TwilioNYSE: TWLO: Cloud communications platform for building customer engagement applications.
4+ YOE4+ years building and operating resilient backend services. Hands-on experience with Go/Java/Python, cloud (AWS and Microsoft Azure), Terraform, distributed systems (Kafka), and IaC; familiarity with observability and high-throughput systems.
Go (Golang), Java, Python, AWS, AWS EC2, AWS S3, AWS Aurora, AWS DynamoDB, Microsoft Azure, Microsoft Virtual Machines, Microsoft Blob Storage, Azure SQL, Microsoft Cosmos DB, Terraform, Kafka, Docker, Kubernetes, OpenTelemetry, Claude Code, mail transfer agent (MTA)
System and Software Engineer (MBSE / SysML) – Aerospace
East Hartford, Connecticut, United States
HybridMultiple Commitments Available
Sopra SteriaEuronext Paris: SOPR: Provides digital transformation consulting and information technology services.
3+ YOEBachelor's in engineering; experience with MATLAB/Simulink for embedded software; experience with Cameo Systems Modeler; SysML; DO-178C; aerospace domain.