Us Senior Software Developer Salary Jobs in Usa

Job Title: Senior React Developer

Location: Denver, Colorado, United States

Duration: Long Term Contract

About VLink: Started in 2006 and headquartered in Connecticut, VLink is one of the fastest growing digital technology services and consulting companies. Since its inception, our innovative team members have been solving the most complex business, and IT challenges of our global clients.

This is a hands-on consulting role focused on designing and delivering high-quality, scalable, and performant front-end solutions using React and TypeScript.

The ideal candidate brings deep front-end engineering expertise, strong architectural instincts, and the ability to collaborate closely with UX, backend engineering, and cross-functional stakeholders to deliver enterprise-grade digital applications.

How you'll make an impact

• Design and implement modular, high-quality front-end features using React and TypeScript
• Establish and maintain scalable front-end architecture supporting long-term maintainability and growth
• Develop reusable Node.js modules and shared libraries to drive cross-project consistency
• Build intuitive, accessible user interfaces leveraging Material UI or comparable design systems
• Integrate applications with RESTful and/or GraphQL APIs, optimizing data access and state management
• Implement comprehensive UI testing strategies using Jest, Cypress, React Testing Library, or similar tools
• Optimize build performance and bundle efficiency through modern tooling such as Webpack and related technologies
• Ensure solutions meet enterprise standards for performance, accessibility, and security
• Partner with backend engineers to define API contracts and improve data-fetching strategies
• Troubleshoot complex UI, caching, and state management challenges
• Contribute to technical design discussions, conduct code reviews, and mentor junior developers
• Stay current with evolving front-end trends, frameworks, and best practices

What you'll bring

• 10+ years of front-end engineering experience, including significant production experience with React
• Deep proficiency in TypeScript with strong understanding of scalable typing patterns and coding standards
• Experience implementing enterprise UI design systems such as Material UI or similar frameworks
• Working knowledge of Node.js, including development of shared packages or internal libraries
• Hands-on experience implementing automated front-end testing strategies
• Strong understanding of modern build tooling, module bundling, tree shaking, and performance optimization techniques
• Experience with state management libraries such as Redux, Zustand, Recoil, or similar tools
• Proven ability to improve application performance through lazy loading, code splitting, and bundle optimization
• Experience integrating RESTful services and/or GraphQL APIs with efficient data handling strategies
• Familiarity with CI/CD pipelines and release management practices for front-end deployments
• Strong analytical and troubleshooting skills in complex client-side environments
• Effective communication skills and ability to collaborate across product, design, backend engineering, and business teams

Strongly Preferred

• Experience with AEM Cloud and SPA Editor
• Familiarity with server-side rendering frameworks such as Next.js
• Experience working within micro-frontend or modular front-end architectures
• Knowledge of accessibility standards (WCAG) and advanced front-end performance optimization techniques
• Prior consulting or client-facing experience

Employment Practices:

EEO, ADA, FMLA Compliant

VLink is an equal opportunity employer. At VLink, we are committed to embracing diversity, multiculturalism, and inclusion. VLink does not discriminate on the basis of race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law. All aspects of employment including the decision to hire, promote, or discharge, will be decided on the basis of qualifications, merit, performance, and business needs.

We are seeking a Senior Lead Developer to lead the development and deployment of our backend services. In this role, you will be the bridge between our PostgreSQL database and React frontend, responsible not only for writing high-performance Python code but also for architecting the CI/CD pipelines that bring our applications to life. You will ensure our integration layers are scalable, secure, and automatically deployed.

Key Responsibilities

• API & Backend Development: Design and maintain production-grade RESTful APIs using Python (FastAPI, Flask) with a focus on asynchronous processing.

• Database Engineering: Architect relational schemas and write optimized SQL in PostgreSQL, ensuring data integrity and query performance.

• React Integration: Partner with frontend teams to define API contracts, handle state-consistent data fetching, and implement secure authentication (JWT/OAuth2).

• CI/CD & Deployment: Build and manage automated deployment pipelines (e.g., Azure DevOps or Jenkins) to move code from local environments to staging and production.

• Containerization & Cloud: Package applications using Docker and manage deployments on cloud platforms or container orchestrators (Kubernetes/ECS).

• System Reliability: Implement automated testing (PyTest), logging, and monitoring to ensure high availability of integration services.

Technical Requirements

• Experience: 10+ years of professional backend development with a heavy emphasis on Python and API architecture.

• PostgreSQL Expert: Advanced SQL knowledge, including indexing strategies, migrations (Alembic/Flyway), and performance profiling.

• DevOps Tooling: Hands-on experience with Docker and building CI/CD pipelines for Python applications.

• Frontend Literacy: Solid understanding of React (Hooks, Context API) and how it consumes complex JSON structures.

• Infrastructure as Code (Bonus): Familiarity with Terraform or AWS CloudFormation is a significant plus.

The "Lead" Expectation

At the 10-year mark, we expect more than just "feature delivery." We are looking for a candidate who:

• Automates Everything: If a task is done twice, they write a script or a CI job for it.

• Designs for Failure: Implements proper error handling, retries, and health checks in the API layer.

• Collaborates Across the Stack: Can jump into a React component or a Postgres execution plan to find the root cause of a bottleneck.

Job title: Sr Mainframe Developer

Client address: 880 Powder Mill Rd, Wilmington, DE, 19803

Job Description:

• Develops and implements solutions that address complex business challenges, enhancing the ability to make data-driven decisions and improving operational efficiency.
• Prepares architecture and design documents for complex Banking applications keeping in mind design constraints that translate to coding.
• Develops secure and high-quality code that runs in sync with other highly efficient sub systems.
• Think out-of-the-box proactively and be creative by challenging conventional approaches and contribute towards operational efficiency.
• Troubleshoots problems, works with Product Teams and other stake holders to understand complex Requirements and be able to break them down to design/development

Job Requirements:

• Candidate should have expertise in MQ, CICS, IMS, COBOL, JCL, VSAM & DB2. · Expertise in CICS Programming including knowledge of CICS Screen Programming is Mandatory.
• Experience/Knowledge in building and maintaining new Test regions is preferred.
• Experience coding in MQ Series & IMS DB is Mandatory.
• Experience in Banking Compliance and Regulatory Platform is preferred.
• Must have hands-on coding development experience. Experience with version control.
• Ability to communicate effectively with team members and clients and excellent problem-solving skill

Years of experience required: 10-14

Are you an experienced Full Stack Developer with a desire to excel? If so, then Talent Software Services may have the job for you! Our client is seeking an experienced Full Stack Developer to work at their company in Minneapolis, MN.

Position Summary: The team builds and maintains scalable microservices and batch-processing platforms that ingest, enrich, store, and serve user-generated content for clients' eCommerce and enterprise systems. Our culture is highly collaborative, prioritizing agility, code simplicity, operational excellence, and consistently high-quality software delivery.

Primary Responsibilities/Accountabilities:

• Delivers complex, well-tested, and reliable product features with minimal oversight.
• Excels at breaking down large problems and demonstrates depth across software development lifecycle phases, including concept, design, testing, and deployment.
• Develops solutions and optimizations that improve performance across the full application stack.
• Comfortable independently triaging complex issues across multiple environments in a fast-paced, dynamic setting.
• Actively engages in pair programming, daily standups, sprint retrospectives, backlog grooming, and user story mapping.

Qualifications:

• 5+ years of experience building highly scalable, high-performing applications using Java, Spring Boot, and Gradle with strong object-oriented design skills.
• Experience with Test Driven Development (TDD), including writing unit and integration tests using JUnit, Mockito, and/or the Spock Framework.
• Experience with streaming and messaging platforms such as Kafka, RabbitMQ, or Google Pub/Sub.
• Strong experience with CI/CD pipelines using tools such as Jenkins or GitHub Actions.
• Experience designing distributed application architectures that leverage NoSQL data stores such as Apache Cassandra for high throughput at scale.
• Experience with search and indexing systems such as Apache Solr for large-scale data access and query performance.

Preferred:

• Strong communicator and collaborator who works effectively across cross-functional teams, proactively brings ideas to the table, and takes initiative rather than waiting to be directed.
• Experience with front-end technologies, including JavaScript, ReactJS and NodeJS.
• Experience with container platforms such as Docker.
• Experience designing, testing, and deploying scalable solutions on Google Cloud Platform utilizing services such as BigQuery, Cloud Functions, Cloud Run, and Dataflow.
• Experience with off-heap caching solutions such as Memcached.
• Experience leveraging AI-assisted development tools such as GitHub Copilot to accelerate development workflows.
• Ability to triage and manage complex, production issues

Are you an experienced Back End Developer with a desire to excel? If so, then Talent Software Services may have the job for you! Our client is seeking an experienced Back End Developer to work at their company in Richfield, MN.

Position Summary: We are seeking a DevOps Engineer to join our Enterprise API Management team. The successful candidate will be responsible for building, deploying, and operating our platform and services, with an emphasis on automation, reliability, and secure-by-default delivery. This role partners closely with engineers through collaboration and pair programming to improve CI/CD pipelines, troubleshooting practices, and operational readiness, and it also requires some software development experience (e.g., ability to read/debug code and contribute when needed). Technologies involved include Kubernetes, Helm charts, Java/Spring Boot, AWS offerings (certification preferred), and API platform capabilities such as API Gateway and security.

Qualifications:

• Kubernetes 5+ Years
• Helm Charts 4+ Years
• AWS (core offerings; certification preferred) 5+ Years
• Java and Spring Boot 5+ Years
• API Security 5+ Years

Preferred:

• CI/CD and GitOps
• Infrastructure-as-Code experience (e.g., Terraform/CloudFormation)
• API Gateway/API Management experience
• Observability tooling (logging/metrics/tracing) and on-call readiness
• Lua Programming
• Collaborative delivery practices (pair programming, code reviews)

Job Title: Java Developer

Location : Frisco, TX or Edison, NJ (Onsite Role-5 Days Onsite Per week)

Duration : 12+ Months Contract

Teams Meeting Interview

Job Description:

Weekend Drive this week for F2F interview and W2

Java developer - Need to go in person interview.

• looking for 6+ years of candidate
• Full‑Stack Development
• Microservices architecture
• CI/CD
• Kafka / MQ
• MongoDB

Are you an experienced Sr Research Associate with a desire to excel? If so, then Talent Software Services may have the job for you! Our client is seeking an experienced Sr Research Associate to work in Novato, CA.

Position Summary: The selected candidate will work in the Separations and Biophysical Assays team within the Analytical Sciences group to assist in the advancement of clients' therapeutics for clinical evaluation and potential commercialisation. The candidate will be responsible for method development (separations), provide routine testing and characterization support to partner groups to help with early candidate selection, process development, and drug substance and drug product process characterization. The ideal candidate will have hands-on experience working with biologics including but not limited to proteins, peptides, protein-conjugates, enzymes, biologics with a focus on method development and in-depth characterization. The ideal candidate will be able to perform quality work under limited supervision, apply problem solving techniques to maintain accurate results, promote improvements, and assure a safe, stable, on-target operation within the laboratory. The selected candidate should possess excellent analytical, organizational and communication skills and be a self-starter willing to work efficiently and collaboratively in a dynamic environment. This role is primarily a laboratory position; contact with chemicals is part of the job. The role is fully onsite (5 days a week, 8-hour days) with occasional evening or weekend work required. The employee will be trained to use common lab equipment and minimize exposure to hazards. Desktop or laptop computer work is also a major component of the job. The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this job, the employee is occasionally exposed to work near moving mechanical parts; fumes or airborne particles; toxic or caustic chemicals; risk of electrical shock and vibration. The noise level in the work environment is usually moderate. The employee may frequently be required to sit and talk or hear. The employee is occasionally required to stand; walk; use hands to finger, handle, or feel; reach with hands and arms; climb or balance; stoop, knee crouch, or crawl and taste or smell. The employee must occasionally lift and/or move up to 25 pounds. Specific vision abilities in this job include close vision, depth perception and ability to adjust focus.

Primary Responsibilities/Accountabilities:

• Primary responsibility is to support the Separations and Biophysics group within Analytical Sciences
• Be a hands-on presence in the laboratory, supporting biophysical/ biochemical assay development and qualification using HPLC and CE (must have) for various modalities (preferably biologics). LC-MS (high-res) experience is also desirable.
• Provide routine analytical characterization & testing support to partner groups including Upstream and Downstream PD, Formulations, and Research & Early Development (RED).
• Document experimental results in the company electronic lab notebook (Benchling), author procedures, and contribute to technical documentation (test methods, development reports).
• Actively participate in the operational aspects of the laboratory by conducting safety inspections, lab organization, ordering supplies, and performing routine equipment maintenance.
• Present scientific literature and results from ongoing studies at group meetings and other discussion forums at the company.
• Other duties as assigned.

Qualifications:

• Bachelor's degree in Chemistry, Biochemistry, Analytical Chemistry, Chemical Engineering or a related field with 6+ years of experience in a Biologics or Pharmaceutical environment.
• Master's degree in Chemistry, Biochemistry, Analytical Chemistry, Chemical Engineering or a related field with 4+ years of experience in a Biologics or Pharmaceutical environment.
• Hands-on experience in the biotechnology industry or academic setting with a broad range of analytical techniques focused on analytical testing and characterization for proteins, peptides, and protein-conjugates is required.
• Experience with biochemical characterization methods is required:
• SEC, SCX, RP-HPLC experience is a must (Agilent/Waters/Thermo LC instruments)
• Capillary Electrophoresis (PA800 or BioPhase8800) based methods (SDS for size separation, glycan profiling)
• cIEF (Maurice) experience is highly desirable
• LC-MS (Orbitrap/QToF/QQQ) method development experience also desirable
• Technical understanding of all aspects of analytical testing, phase appropriate regulatory requirements, method qualifications, and method transfers.
• Ability to independently troubleshoot issues, ideate, and develop insights into technical challenges and propose solutions to solve them.
• Demonstrates attention-to-detail and "right-the-first time' approach
• Excellent written and oral communication skills, with the ability to communicate complex information. Be able to present data/ideas to functional and cross-functional teams.
• Ability to influence others effectively and develop collaborative relationships with partner teams.
• Familiar with use of statistical software, electronic document management, and laboratory information management.
• Ability to effectively analyze complex problems and present results effectively within and beyond the department
• Ability to flexibly adapt to changing business needs and meet timelines.
• Strong organizational skills with the ability to effectively multi-task and prioritize.

Preferred:

• Experience in method development, qualification, and transfer to/from other laboratories, such as development and quality control.
• Knowledge of biopharmaceutical process development is a plus.
• Experience with automation is a plus.
• Experience working in a cross-functional environment.
• Good understanding of root cause analysis methodology.