Principal Full Stack Engineer
Fidelity Investments
Fidelity will not provide immigration sponsorship for this position.Job Description:The TeamWe at Fidelity Trade Management Engineering (TME) group are responsible for building and maintaining Fidelity’s brokerage platform order management and trade processing system. We are high functioning, fast paced technology group that work on cutting edge technologies to deliver low latency and high throughput trading solutions. We want to work with an engineer who is versatile, always eager to take on new problems and share solutions as we push the technology forward. Working independently as well as collaboratively, it is important for this person to have a positive approach to leadership, teamwork, and a drive to deliver groundbreaking solutions every day.The Expertise You HaveHave at least a bachelor’s degree in Computer Science, Engineering, Information Technology or equivalent, with a preference for advanced studyMinimum 8 years of software design, development and performance testing experienceDeep hands-on experience in Software Performance EngineeringDemonstrated skill in Java, Spring, Python, LinuxHands on experience using tools like jMeter to build performance harness for software benchmarkingWillingness to guide and mentor junior team members on solid engineering practicesPrevious exposure to trading systems or brokerage technologyKnowledge of the FIX protocol is a plusThe Skills You BringAbility to understand end to end platform and identify issues that can cause performance, scalability or resilience issuesEffective analytical, communication, and organizational skills and a willingness to run with multiple tasks at a given timeThrive in a team environment, collaborating openly and actively contributingAble to innovate independently and work with leadershipFamiliarity with event driven and service-oriented processing is requiredDemonstrated work experience with cloud technologies. Industry certifications are welcome, but hands on experience and expertise are better. Walking the walk is the most important thingAn eye for detail and a skill for root cause analysis in diagnosing and mitigating production problems as quickly as possible in a dynamic, high value environmentThe Value you DeliverWork across organization and collaborate with teams to build highly scalable and resilient trading platformDeliver high quality, timely, cost effective and maintainable software solutions in an agile environment to meet functional and non-functional business requirementsActively contribute to the improvement of engineering practices such as code and design reviews, cloud strategy, and build and deployment pipelinesWork with squad lead and team tech lead on a frequent, recurring basis to design and implement novel solutions to complicated problemsAble to clearly present complex technical solutions, ideas, and plans to management, program teams, and less technical stakeholders as neededDevelop an understanding of the business domain you are working on and contribute to technology discussions with business partners and other external partiesInvestigate creative practices and help decide how to apply them within the team.Fidelity’s Onsite Working ModelFidelity is transitioning to a full-time onsite working model through a phased rollout across regions and roles. Currently, some roles and locations require 100% onsite presence, while others require less. Onsite expectations are likely to evolve as the rollout continues. This transition does not apply to fully remote roles.Certifications:Category:Information TechnologyPlease be advised that Fidelity’s business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.SummaryLocation: Merrimack, NHType: Full time
- ...maintainable, and well-documented code following established engineering standards and best practices. Develop and support RESTful... ...GitHub GitHub Actions Jenkins Splunk Datadog Full Stack Software Engineering API Development Agile Team Collaboration...Suggested
$39.46 - $79.46 per hour
...TalentSource is your destination for discovering your next temporary role at Fidelity Investments. We are currently sourcing for a Full Stack Engineer to work in Boston, MA! The Role The Full Stack Engineer is a hands-on technical role responsible for designing,...SuggestedHourly payFull timeTemporary work- ...want to be part of an inclusive, adaptable, and forward-thinking organization, apply now.We are currently seeking a Senior Java Full Stack Engineer (w/Angular 16+) - FTE/GC/EAD/Citizen Only (Onsite Hybrid) to join our team in Merrimack, New Hampshire (US-NH), United States...SuggestedWork at officeRemote workFlexible hours
- ...Description: Hybrid Onsite 5 days/week, alternating weeks in either Merrimack, NH or Westlake, TX Our client seeks a Full Stack Engineer to build omni-channel user experiences and supporting platforms for retail alternative investments and crypto solutions. You...SuggestedHourly payLocal area
- ...Principal Full stack Engineer The Brokerage Technology Trades Processing & Settlements Team in Fidelity Wealth Technology, is looking for a Principal Full Stack Engineer to collaborate and deliver the top quality scalable systems solutions. You will serve as a Technical...Principal
- ...Job Title Fidelity Charitable is looking for experienced engineers who are hardworking, collaborative, analytical thinkers to help... ...to our customers. The ideal candidate is deeply entrenched in full stack development, with a passion for using tools and frameworks to...PrincipalFull time
- Job Summary:The Principal Program Subcontracts Specialist will be responsible for all aspects of the subcontract management lifecycle... ...multifunctional program teams.Work closely with program management, engineering, quality assurance, finance and contracts to drive compliance...PrincipalContract workTemporary workRemote work
- Job SummaryThe Principal Systems Engineer performs requirements analysis and management, technical planning, systems level design, systems integration, verification and validation, cost and risk management, and supportability and effectiveness analyses for total systems...PrincipalWork at office
$106k - $142k
...organization, apply now.We are currently seeking a Java FullStack Engineer- Merrimack, NH to join our team in Merrimack, New Hampshire (US-... ...information, please click here.Job SummaryJob number: 383486Date posted : 2026-08-03Profession: OtherEmployment type: Full timeFull timeTemporary workWork at officeRemote workFlexible hours- Job Summary:The Principal Systems Integration Engineer is responsible for developing and integrating visually augmented systems for dismounted Warfighter applications, including see-through displays with extended reality applications. This role, reporting to the Chief...PrincipalImmediate startRemote work
- ...Degree in computer science, information technology, cybersecurity, engineering or a related field of study preferred.Professional technology... ....Fidelity’s Onsite Working ModelFidelity is transitioning to a full-time onsite working model through a phased rollout across...PrincipalFull time
$132.96k - $226.04k
...build your career with BAE Systems. Our engineers are the lifeblood of our company. With our... ...available for a highly motivated Senior Principal RF/Microwave Engineer to join our... ...ADS) and Genesys Pay Information Full-Time Salary Range: $132962 - $226035...PrincipalFull timeFor subcontractorLocal areaImmediate startWorldwideFlexible hoursNight shift- ...business needs and opportunities. Establishes full project life cycle plans for complex... ...Bachelor’s degree in Computer Science, Engineering, Information Technology, Information... ...) and five (5) years of experience as a Principal Systems Analyst (or closely related occupation...PrincipalFull time
- ...Care Technology Group (HCG) Team is looking to fill an exciting and ambitious position on its development team! As a Senior Software Engineer, you will be a senior member, encouraged to supply to the technical leadership and center of competence within the HCG team. This...Remote work
- ...Job Description Description: Hybrid Every Other Week onsite / 5 days in either Merrimack, NH or TX Our client seeks a Full Stack Engineer to support Defined Benefit technology initiatives. The role focuses on design and development of DB calculation engine...Hourly payLocal area
- ...for an inspiring career? You just found it.Job OverviewProvide Principal Quality Assurance level support and oversight to Corrective... ...department. Mentor cross functional teams and other Quality Assurance Engineers. Facilitate activities to ensure effective and timely CAPAs....PrincipalWork experience placementCasual workRemote workWorldwideFlexible hours
- ...methodology, attending daily stand-ups, sprint planning, and retrospective meetings. Minimum 2-3 years of software engineering experience Have built mobile apps (and/or web apps) full-stack before Enthusiastic about photo sharing and/or AI and/or social media...Full time
- ## Principal Systems AnalystApply: Merrimack, NH: Full time: Posted Today: End Date: November 17, 2026 (30+ days left to apply): 2136534# **Fidelity will... ...using Jira and Confluence to ensure alignment between engineering teams and business strategy. Generates financial...PrincipalFull time
$156k - $166.4k
...Salary: $156,000 - 166,400 per year Requirements: ~8 years of experience in application development or software engineering. ~ Expertise in full stack technologies including Linux, Oracle, SQL, Snowflake, XML/XSLT, JavaScript, Java, Angular, Spring Boot, Python,...Full time$102.17k
...country. Job Description Trinnex is looking for a Senior Full Stack Developer to join our growing Digital Solutions team. You’ll... ...learning, and AI‑powered agent systems to solve real‑world engineering and environmental challenges. In this role, you’ll help shape...Work experience placementH1bLocal areaRemote work- ...DescriptionJob Summary:Mercury Systems is offering a Senior Principal Hardware Electrical Engineer a fulfilling career where you will be able to see the... ...0Click here read about our recent press release.Job DetailsJob Type: Full-timeCategory: EngineeringSalaried: SalariedPrincipalPermanent employmentCasual workWorldwide
- ...With deep domain expertise and extensive engineering capabilities, Invio partners with... ...stage product design and R&D through to full-scale automation. Customers value Invio'... ...automation systems and tooling. Senior Principal Engineer Managers must possess a working...PrincipalWork at officeFlexible hours
- ...Sr. Full Stack Software Engineer Duration: 12 -24 Months Location: Merrimack, NH/ Smithfield, RI/ Westlake, TX/ Durham, NC/ Covington, KY Candidate should be local or willing to work onsite on any of the above locations for 5 days/ month The Role As a Sr...Local area
- ...Description: Onsite Our client seeks a Principal UX Designer to lead design for FinTech... ...standards, partner with product and engineering, and deliver data-dense, accessible interfaces... ...and product managers through the full production lifecycle. Assess and optimize...PrincipalHourly payLocal area
- ...are seeking a highly experienced Senior Principal, Information Systems to provide advanced... ...establishing operational plans, guiding innovative engineering solutions, and shaping long‑term... ...press release.Job DetailsJob Type: Full-timeCategory: Information TechnologySalaried...PrincipalCasual workRemote workWorldwide
$149.6k - $254.32k
...BAE Systems is seeking a Sr. Principal System Security Engineer, Anti Tamper to lead security countermeasure efforts against current and future attacks... ...Location and Work Model ~ Nashua, NH (onsite) ~ Full time on site ~100% of the time at a BAE Systems facility...PrincipalFull timeWork experience placement- ...Description Insight Global is seeking a Senior Software Engineer to join one of our clients' enterprise engineering teams. This... ..., the Senior Software Engineer will work across the full application stack, owning features from the user interface through backend services...
- ...applications, advancing innovation where it matters most.The Engineering team is looking for a Principal RF Engineer who will provide hands-on technical... ...Click here read about our recent press release.Job DetailsJob Type: Full-timeCategory: EngineeringSalaried: SalariedPrincipalCasual workWork at officeWorldwide
- ...Description: On-site Every Other Week onsite / 5 days in Smithfield, RI in either Merrimack, NH or Westlake, TX Our client seeks a Principal Systems Analyst to join an agile delivery squad supporting donor-focused digital experiences. The analyst will partner with...PrincipalHourly payLocal area
$144.1k - $192.1k
...Principal Fpga Engineer Curtiss-Wright is seeking an experienced Principal Fpga Engineer to join our engineering team in Ashburn, VA. In this senior, hands-on role, you will lead the design and development of Fpga-based solutions for Dod and other stakeholder secure...Principal
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